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path: root/drivers/gpu/drm/i915/display/intel_backlight.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_backlight.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_backlight.c737
1 files changed, 400 insertions, 337 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_backlight.c b/drivers/gpu/drm/i915/display/intel_backlight.c
index beba39a38c87..a68fdbd2acb9 100644
--- a/drivers/gpu/drm/i915/display/intel_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_backlight.c
@@ -7,14 +7,20 @@
#include <linux/kernel.h>
#include <linux/pwm.h>
#include <linux/string_helpers.h>
-
#include <acpi/video.h>
+#include <drm/drm_file.h>
+#include <drm/drm_print.h>
+
+#include "i915_reg.h"
#include "intel_backlight.h"
#include "intel_backlight_regs.h"
#include "intel_connector.h"
#include "intel_de.h"
+#include "intel_display_regs.h"
+#include "intel_display_rpm.h"
#include "intel_display_types.h"
+#include "intel_display_utils.h"
#include "intel_dp_aux_backlight.h"
#include "intel_dsi_dcs_backlight.h"
#include "intel_panel.h"
@@ -39,8 +45,9 @@ static u32 scale(u32 source_val,
{
u64 target_val;
- WARN_ON(source_min > source_max);
- WARN_ON(target_min > target_max);
+ if (WARN_ON(source_min >= source_max) ||
+ WARN_ON(target_min > target_max))
+ return target_min;
/* defensive */
source_val = clamp(source_val, source_min, source_max);
@@ -82,16 +89,16 @@ static u32 scale_hw_to_user(struct intel_connector *connector,
u32 intel_backlight_invert_pwm_level(struct intel_connector *connector, u32 val)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- drm_WARN_ON(&dev_priv->drm, panel->backlight.pwm_level_max == 0);
+ drm_WARN_ON(display->drm, panel->backlight.pwm_level_max == 0);
- if (dev_priv->params.invert_brightness < 0)
+ if (display->params.invert_brightness < 0)
return val;
- if (dev_priv->params.invert_brightness > 0 ||
- intel_has_quirk(dev_priv, QUIRK_INVERT_BRIGHTNESS)) {
+ if (display->params.invert_brightness > 0 ||
+ intel_has_quirk(display, QUIRK_INVERT_BRIGHTNESS)) {
return panel->backlight.pwm_level_max - val + panel->backlight.pwm_level_min;
}
@@ -101,19 +108,20 @@ u32 intel_backlight_invert_pwm_level(struct intel_connector *connector, u32 val)
void intel_backlight_set_pwm_level(const struct drm_connector_state *conn_state, u32 val)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- drm_dbg_kms(&i915->drm, "set backlight PWM = %d\n", val);
+ drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s] set backlight PWM = %d\n",
+ connector->base.base.id, connector->base.name, val);
panel->backlight.pwm_funcs->set(conn_state, val);
}
u32 intel_backlight_level_to_pwm(struct intel_connector *connector, u32 val)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- drm_WARN_ON_ONCE(&dev_priv->drm,
+ drm_WARN_ON_ONCE(display->drm,
panel->backlight.max == 0 || panel->backlight.pwm_level_max == 0);
val = scale(val, panel->backlight.min, panel->backlight.max,
@@ -124,14 +132,15 @@ u32 intel_backlight_level_to_pwm(struct intel_connector *connector, u32 val)
u32 intel_backlight_level_from_pwm(struct intel_connector *connector, u32 val)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- drm_WARN_ON_ONCE(&dev_priv->drm,
+ drm_WARN_ON_ONCE(display->drm,
panel->backlight.max == 0 || panel->backlight.pwm_level_max == 0);
- if (dev_priv->params.invert_brightness > 0 ||
- (dev_priv->params.invert_brightness == 0 && intel_has_quirk(dev_priv, QUIRK_INVERT_BRIGHTNESS)))
+ if (display->params.invert_brightness > 0 ||
+ (display->params.invert_brightness == 0 &&
+ intel_has_quirk(display, QUIRK_INVERT_BRIGHTNESS)))
val = panel->backlight.pwm_level_max - (val - panel->backlight.pwm_level_min);
return scale(val, panel->backlight.pwm_level_min, panel->backlight.pwm_level_max,
@@ -140,32 +149,33 @@ u32 intel_backlight_level_from_pwm(struct intel_connector *connector, u32 val)
static u32 lpt_get_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
- return intel_de_read(dev_priv, BLC_PWM_PCH_CTL2) & BACKLIGHT_DUTY_CYCLE_MASK;
+ return intel_de_read(display, BLC_PWM_PCH_CTL2) & BACKLIGHT_DUTY_CYCLE_MASK;
}
static u32 pch_get_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
- return intel_de_read(dev_priv, BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
+ return intel_de_read(display, BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
}
static u32 i9xx_get_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 val;
- val = intel_de_read(dev_priv, BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
- if (DISPLAY_VER(dev_priv) < 4)
+ val = intel_de_read(display, BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
+ if (DISPLAY_VER(display) < 4)
val >>= 1;
if (panel->backlight.combination_mode) {
+ struct pci_dev *pdev = to_pci_dev(display->drm->dev);
u8 lbpc;
- pci_read_config_byte(to_pci_dev(dev_priv->drm.dev), LBPC, &lbpc);
+ pci_read_config_byte(pdev, LBPC, &lbpc);
val *= lbpc;
}
@@ -174,21 +184,20 @@ static u32 i9xx_get_backlight(struct intel_connector *connector, enum pipe unuse
static u32 vlv_get_backlight(struct intel_connector *connector, enum pipe pipe)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
- if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
+ if (drm_WARN_ON(display->drm, pipe != PIPE_A && pipe != PIPE_B))
return 0;
- return intel_de_read(dev_priv, VLV_BLC_PWM_CTL(pipe)) & BACKLIGHT_DUTY_CYCLE_MASK;
+ return intel_de_read(display, VLV_BLC_PWM_CTL(pipe)) & BACKLIGHT_DUTY_CYCLE_MASK;
}
static u32 bxt_get_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- return intel_de_read(dev_priv,
- BXT_BLC_PWM_DUTY(panel->backlight.controller));
+ return intel_de_read(display, BXT_BLC_PWM_DUTY(panel->backlight.controller));
}
static u32 ext_pwm_get_backlight(struct intel_connector *connector, enum pipe unused)
@@ -203,69 +212,71 @@ static u32 ext_pwm_get_backlight(struct intel_connector *connector, enum pipe un
static void lpt_set_backlight(const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
+ u32 val;
- u32 val = intel_de_read(dev_priv, BLC_PWM_PCH_CTL2) & ~BACKLIGHT_DUTY_CYCLE_MASK;
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL2, val | level);
+ val = intel_de_read(display, BLC_PWM_PCH_CTL2) & ~BACKLIGHT_DUTY_CYCLE_MASK;
+ intel_de_write(display, BLC_PWM_PCH_CTL2, val | level);
}
static void pch_set_backlight(const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
u32 tmp;
- tmp = intel_de_read(dev_priv, BLC_PWM_CPU_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
- intel_de_write(dev_priv, BLC_PWM_CPU_CTL, tmp | level);
+ tmp = intel_de_read(display, BLC_PWM_CPU_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
+ intel_de_write(display, BLC_PWM_CPU_CTL, tmp | level);
}
static void i9xx_set_backlight(const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 tmp, mask;
- drm_WARN_ON(&dev_priv->drm, panel->backlight.pwm_level_max == 0);
+ if (drm_WARN_ON(display->drm, panel->backlight.pwm_level_max == 0))
+ return;
if (panel->backlight.combination_mode) {
+ struct pci_dev *pdev = to_pci_dev(display->drm->dev);
u8 lbpc;
lbpc = level * 0xfe / panel->backlight.pwm_level_max + 1;
level /= lbpc;
- pci_write_config_byte(to_pci_dev(dev_priv->drm.dev), LBPC, lbpc);
+ pci_write_config_byte(pdev, LBPC, lbpc);
}
- if (DISPLAY_VER(dev_priv) == 4) {
+ if (DISPLAY_VER(display) == 4) {
mask = BACKLIGHT_DUTY_CYCLE_MASK;
} else {
level <<= 1;
mask = BACKLIGHT_DUTY_CYCLE_MASK_PNV;
}
- tmp = intel_de_read(dev_priv, BLC_PWM_CTL) & ~mask;
- intel_de_write(dev_priv, BLC_PWM_CTL, tmp | level);
+ tmp = intel_de_read(display, BLC_PWM_CTL) & ~mask;
+ intel_de_write(display, BLC_PWM_CTL, tmp | level);
}
static void vlv_set_backlight(const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
enum pipe pipe = to_intel_crtc(conn_state->crtc)->pipe;
u32 tmp;
- tmp = intel_de_read(dev_priv, VLV_BLC_PWM_CTL(pipe)) & ~BACKLIGHT_DUTY_CYCLE_MASK;
- intel_de_write(dev_priv, VLV_BLC_PWM_CTL(pipe), tmp | level);
+ tmp = intel_de_read(display, VLV_BLC_PWM_CTL(pipe)) & ~BACKLIGHT_DUTY_CYCLE_MASK;
+ intel_de_write(display, VLV_BLC_PWM_CTL(pipe), tmp | level);
}
static void bxt_set_backlight(const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- intel_de_write(dev_priv,
- BXT_BLC_PWM_DUTY(panel->backlight.controller), level);
+ intel_de_write(display, BXT_BLC_PWM_DUTY(panel->backlight.controller), level);
}
static void ext_pwm_set_backlight(const struct drm_connector_state *conn_state, u32 level)
@@ -273,17 +284,18 @@ static void ext_pwm_set_backlight(const struct drm_connector_state *conn_state,
struct intel_panel *panel = &to_intel_connector(conn_state->connector)->panel;
pwm_set_relative_duty_cycle(&panel->backlight.pwm_state, level, 100);
- pwm_apply_state(panel->backlight.pwm, &panel->backlight.pwm_state);
+ pwm_apply_might_sleep(panel->backlight.pwm, &panel->backlight.pwm_state);
}
static void
intel_panel_actually_set_backlight(const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- drm_dbg_kms(&i915->drm, "set backlight level = %d\n", level);
+ drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s] set backlight level = %d\n",
+ connector->base.base.id, connector->base.name, level);
panel->backlight.funcs->set(conn_state, level);
}
@@ -295,7 +307,7 @@ void intel_backlight_set_acpi(const struct drm_connector_state *conn_state,
u32 user_level, u32 user_max)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 hw_level;
@@ -308,9 +320,9 @@ void intel_backlight_set_acpi(const struct drm_connector_state *conn_state,
if (!panel->backlight.present || !conn_state->crtc)
return;
- mutex_lock(&dev_priv->display.backlight.lock);
+ mutex_lock(&display->backlight.lock);
- drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
+ drm_WARN_ON(display->drm, panel->backlight.max == 0);
hw_level = clamp_user_to_hw(connector, user_level, user_max);
panel->backlight.level = hw_level;
@@ -324,13 +336,13 @@ void intel_backlight_set_acpi(const struct drm_connector_state *conn_state,
if (panel->backlight.enabled)
intel_panel_actually_set_backlight(conn_state, hw_level);
- mutex_unlock(&dev_priv->display.backlight.lock);
+ mutex_unlock(&display->backlight.lock);
}
static void lpt_disable_backlight(const struct drm_connector_state *old_conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
u32 tmp;
intel_backlight_set_pwm_level(old_conn_state, level);
@@ -343,31 +355,26 @@ static void lpt_disable_backlight(const struct drm_connector_state *old_conn_sta
* This needs rework if we need to add support for CPU PWM on PCH split
* platforms.
*/
- tmp = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
+ tmp = intel_de_read(display, BLC_PWM_CPU_CTL2);
if (tmp & BLM_PWM_ENABLE) {
- drm_dbg_kms(&dev_priv->drm,
- "cpu backlight was enabled, disabling\n");
- intel_de_write(dev_priv, BLC_PWM_CPU_CTL2,
- tmp & ~BLM_PWM_ENABLE);
+ drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s] CPU backlight was enabled, disabling\n",
+ connector->base.base.id, connector->base.name);
+ intel_de_write(display, BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
}
- tmp = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
+ intel_de_rmw(display, BLC_PWM_PCH_CTL1, BLM_PCH_PWM_ENABLE, 0);
}
static void pch_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
- u32 tmp;
+ struct intel_display *display = to_intel_display(connector);
intel_backlight_set_pwm_level(old_conn_state, val);
- tmp = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
- intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
+ intel_de_rmw(display, BLC_PWM_CPU_CTL2, BLM_PWM_ENABLE, 0);
- tmp = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
+ intel_de_rmw(display, BLC_PWM_PCH_CTL1, BLM_PCH_PWM_ENABLE, 0);
}
static void i9xx_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
@@ -377,63 +384,50 @@ static void i9xx_disable_backlight(const struct drm_connector_state *old_conn_st
static void i965_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
- struct drm_i915_private *dev_priv = to_i915(old_conn_state->connector->dev);
- u32 tmp;
+ struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
+ struct intel_display *display = to_intel_display(connector);
intel_backlight_set_pwm_level(old_conn_state, val);
- tmp = intel_de_read(dev_priv, BLC_PWM_CTL2);
- intel_de_write(dev_priv, BLC_PWM_CTL2, tmp & ~BLM_PWM_ENABLE);
+ intel_de_rmw(display, BLC_PWM_CTL2, BLM_PWM_ENABLE, 0);
}
static void vlv_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
enum pipe pipe = to_intel_crtc(old_conn_state->crtc)->pipe;
- u32 tmp;
intel_backlight_set_pwm_level(old_conn_state, val);
- tmp = intel_de_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
- intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe),
- tmp & ~BLM_PWM_ENABLE);
+ intel_de_rmw(display, VLV_BLC_PWM_CTL2(pipe), BLM_PWM_ENABLE, 0);
}
static void bxt_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- u32 tmp;
intel_backlight_set_pwm_level(old_conn_state, val);
- tmp = intel_de_read(dev_priv,
- BXT_BLC_PWM_CTL(panel->backlight.controller));
- intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
- tmp & ~BXT_BLC_PWM_ENABLE);
+ intel_de_rmw(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
+ BXT_BLC_PWM_ENABLE, 0);
- if (panel->backlight.controller == 1) {
- val = intel_de_read(dev_priv, UTIL_PIN_CTL);
- val &= ~UTIL_PIN_ENABLE;
- intel_de_write(dev_priv, UTIL_PIN_CTL, val);
- }
+ if (panel->backlight.controller == 1)
+ intel_de_rmw(display, UTIL_PIN_CTL, UTIL_PIN_ENABLE, 0);
}
static void cnp_disable_backlight(const struct drm_connector_state *old_conn_state, u32 val)
{
struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- u32 tmp;
intel_backlight_set_pwm_level(old_conn_state, val);
- tmp = intel_de_read(dev_priv,
- BXT_BLC_PWM_CTL(panel->backlight.controller));
- intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
- tmp & ~BXT_BLC_PWM_ENABLE);
+ intel_de_rmw(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
+ BXT_BLC_PWM_ENABLE, 0);
}
static void ext_pwm_disable_backlight(const struct drm_connector_state *old_conn_state, u32 level)
@@ -444,13 +438,13 @@ static void ext_pwm_disable_backlight(const struct drm_connector_state *old_conn
intel_backlight_set_pwm_level(old_conn_state, level);
panel->backlight.pwm_state.enabled = false;
- pwm_apply_state(panel->backlight.pwm, &panel->backlight.pwm_state);
+ pwm_apply_might_sleep(panel->backlight.pwm, &panel->backlight.pwm_state);
}
void intel_backlight_disable(const struct drm_connector_state *old_conn_state)
{
struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
if (!panel->backlight.present)
@@ -462,68 +456,62 @@ void intel_backlight_disable(const struct drm_connector_state *old_conn_state)
* backlight. This will leave the backlight on unnecessarily when
* another client is not activated.
*/
- if (dev_priv->drm.switch_power_state == DRM_SWITCH_POWER_CHANGING) {
- drm_dbg_kms(&dev_priv->drm,
- "Skipping backlight disable on vga switch\n");
+ if (display->drm->switch_power_state == DRM_SWITCH_POWER_CHANGING) {
+ drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s] Skipping backlight disable on vga switch\n",
+ connector->base.base.id, connector->base.name);
return;
}
- mutex_lock(&dev_priv->display.backlight.lock);
+ mutex_lock(&display->backlight.lock);
if (panel->backlight.device)
- panel->backlight.device->props.power = FB_BLANK_POWERDOWN;
+ panel->backlight.device->props.power = BACKLIGHT_POWER_OFF;
panel->backlight.enabled = false;
panel->backlight.funcs->disable(old_conn_state, 0);
- mutex_unlock(&dev_priv->display.backlight.lock);
+ mutex_unlock(&display->backlight.lock);
}
static void lpt_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- u32 pch_ctl1, pch_ctl2, schicken;
+ u32 pch_ctl1, pch_ctl2;
- pch_ctl1 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
+ pch_ctl1 = intel_de_read(display, BLC_PWM_PCH_CTL1);
if (pch_ctl1 & BLM_PCH_PWM_ENABLE) {
- drm_dbg_kms(&dev_priv->drm, "pch backlight already enabled\n");
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] PCH backlight already enabled\n",
+ connector->base.base.id, connector->base.name);
pch_ctl1 &= ~BLM_PCH_PWM_ENABLE;
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, pch_ctl1);
+ intel_de_write(display, BLC_PWM_PCH_CTL1, pch_ctl1);
}
- if (HAS_PCH_LPT(dev_priv)) {
- schicken = intel_de_read(dev_priv, SOUTH_CHICKEN2);
- if (panel->backlight.alternate_pwm_increment)
- schicken |= LPT_PWM_GRANULARITY;
- else
- schicken &= ~LPT_PWM_GRANULARITY;
- intel_de_write(dev_priv, SOUTH_CHICKEN2, schicken);
- } else {
- schicken = intel_de_read(dev_priv, SOUTH_CHICKEN1);
- if (panel->backlight.alternate_pwm_increment)
- schicken |= SPT_PWM_GRANULARITY;
- else
- schicken &= ~SPT_PWM_GRANULARITY;
- intel_de_write(dev_priv, SOUTH_CHICKEN1, schicken);
- }
+ if (HAS_PCH_LPT(display))
+ intel_de_rmw(display, SOUTH_CHICKEN2, LPT_PWM_GRANULARITY,
+ panel->backlight.alternate_pwm_increment ?
+ LPT_PWM_GRANULARITY : 0);
+ else
+ intel_de_rmw(display, SOUTH_CHICKEN1, SPT_PWM_GRANULARITY,
+ panel->backlight.alternate_pwm_increment ?
+ SPT_PWM_GRANULARITY : 0);
pch_ctl2 = panel->backlight.pwm_level_max << 16;
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL2, pch_ctl2);
+ intel_de_write(display, BLC_PWM_PCH_CTL2, pch_ctl2);
pch_ctl1 = 0;
if (panel->backlight.active_low_pwm)
pch_ctl1 |= BLM_PCH_POLARITY;
/* After LPT, override is the default. */
- if (HAS_PCH_LPT(dev_priv))
+ if (HAS_PCH_LPT(display))
pch_ctl1 |= BLM_PCH_OVERRIDE_ENABLE;
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, pch_ctl1);
- intel_de_posting_read(dev_priv, BLC_PWM_PCH_CTL1);
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL1,
- pch_ctl1 | BLM_PCH_PWM_ENABLE);
+ intel_de_write(display, BLC_PWM_PCH_CTL1, pch_ctl1);
+ intel_de_posting_read(display, BLC_PWM_PCH_CTL1);
+ intel_de_write(display, BLC_PWM_PCH_CTL1, pch_ctl1 | BLM_PCH_PWM_ENABLE);
/* This won't stick until the above enable. */
intel_backlight_set_pwm_level(conn_state, level);
@@ -533,61 +521,66 @@ static void pch_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
u32 cpu_ctl2, pch_ctl1, pch_ctl2;
- cpu_ctl2 = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
+ cpu_ctl2 = intel_de_read(display, BLC_PWM_CPU_CTL2);
if (cpu_ctl2 & BLM_PWM_ENABLE) {
- drm_dbg_kms(&dev_priv->drm, "cpu backlight already enabled\n");
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] CPU backlight already enabled\n",
+ connector->base.base.id, connector->base.name);
cpu_ctl2 &= ~BLM_PWM_ENABLE;
- intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, cpu_ctl2);
+ intel_de_write(display, BLC_PWM_CPU_CTL2, cpu_ctl2);
}
- pch_ctl1 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
+ pch_ctl1 = intel_de_read(display, BLC_PWM_PCH_CTL1);
if (pch_ctl1 & BLM_PCH_PWM_ENABLE) {
- drm_dbg_kms(&dev_priv->drm, "pch backlight already enabled\n");
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] PCH backlight already enabled\n",
+ connector->base.base.id, connector->base.name);
pch_ctl1 &= ~BLM_PCH_PWM_ENABLE;
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, pch_ctl1);
+ intel_de_write(display, BLC_PWM_PCH_CTL1, pch_ctl1);
}
if (cpu_transcoder == TRANSCODER_EDP)
cpu_ctl2 = BLM_TRANSCODER_EDP;
else
cpu_ctl2 = BLM_PIPE(cpu_transcoder);
- intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, cpu_ctl2);
- intel_de_posting_read(dev_priv, BLC_PWM_CPU_CTL2);
- intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, cpu_ctl2 | BLM_PWM_ENABLE);
+ intel_de_write(display, BLC_PWM_CPU_CTL2, cpu_ctl2);
+ intel_de_posting_read(display, BLC_PWM_CPU_CTL2);
+ intel_de_write(display, BLC_PWM_CPU_CTL2, cpu_ctl2 | BLM_PWM_ENABLE);
/* This won't stick until the above enable. */
intel_backlight_set_pwm_level(conn_state, level);
pch_ctl2 = panel->backlight.pwm_level_max << 16;
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL2, pch_ctl2);
+ intel_de_write(display, BLC_PWM_PCH_CTL2, pch_ctl2);
pch_ctl1 = 0;
if (panel->backlight.active_low_pwm)
pch_ctl1 |= BLM_PCH_POLARITY;
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, pch_ctl1);
- intel_de_posting_read(dev_priv, BLC_PWM_PCH_CTL1);
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL1,
- pch_ctl1 | BLM_PCH_PWM_ENABLE);
+ intel_de_write(display, BLC_PWM_PCH_CTL1, pch_ctl1);
+ intel_de_posting_read(display, BLC_PWM_PCH_CTL1);
+ intel_de_write(display, BLC_PWM_PCH_CTL1, pch_ctl1 | BLM_PCH_PWM_ENABLE);
}
static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 ctl, freq;
- ctl = intel_de_read(dev_priv, BLC_PWM_CTL);
+ ctl = intel_de_read(display, BLC_PWM_CTL);
if (ctl & BACKLIGHT_DUTY_CYCLE_MASK_PNV) {
- drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
- intel_de_write(dev_priv, BLC_PWM_CTL, 0);
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] backlight already enabled\n",
+ connector->base.base.id, connector->base.name);
+ intel_de_write(display, BLC_PWM_CTL, 0);
}
freq = panel->backlight.pwm_level_max;
@@ -597,11 +590,11 @@ static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
ctl = freq << 17;
if (panel->backlight.combination_mode)
ctl |= BLM_LEGACY_MODE;
- if (IS_PINEVIEW(dev_priv) && panel->backlight.active_low_pwm)
+ if (display->platform.pineview && panel->backlight.active_low_pwm)
ctl |= BLM_POLARITY_PNV;
- intel_de_write(dev_priv, BLC_PWM_CTL, ctl);
- intel_de_posting_read(dev_priv, BLC_PWM_CTL);
+ intel_de_write(display, BLC_PWM_CTL, ctl);
+ intel_de_posting_read(display, BLC_PWM_CTL);
/* XXX: combine this into above write? */
intel_backlight_set_pwm_level(conn_state, level);
@@ -611,24 +604,26 @@ static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
* 855gm only, but checking for gen2 is safe, as 855gm is the only gen2
* that has backlight.
*/
- if (DISPLAY_VER(dev_priv) == 2)
- intel_de_write(dev_priv, BLC_HIST_CTL, BLM_HISTOGRAM_ENABLE);
+ if (DISPLAY_VER(display) == 2)
+ intel_de_write(display, BLC_HIST_CTL, BLM_HISTOGRAM_ENABLE);
}
static void i965_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
enum pipe pipe = to_intel_crtc(conn_state->crtc)->pipe;
u32 ctl, ctl2, freq;
- ctl2 = intel_de_read(dev_priv, BLC_PWM_CTL2);
+ ctl2 = intel_de_read(display, BLC_PWM_CTL2);
if (ctl2 & BLM_PWM_ENABLE) {
- drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] backlight already enabled\n",
+ connector->base.base.id, connector->base.name);
ctl2 &= ~BLM_PWM_ENABLE;
- intel_de_write(dev_priv, BLC_PWM_CTL2, ctl2);
+ intel_de_write(display, BLC_PWM_CTL2, ctl2);
}
freq = panel->backlight.pwm_level_max;
@@ -636,16 +631,16 @@ static void i965_enable_backlight(const struct intel_crtc_state *crtc_state,
freq /= 0xff;
ctl = freq << 16;
- intel_de_write(dev_priv, BLC_PWM_CTL, ctl);
+ intel_de_write(display, BLC_PWM_CTL, ctl);
ctl2 = BLM_PIPE(pipe);
if (panel->backlight.combination_mode)
ctl2 |= BLM_COMBINATION_MODE;
if (panel->backlight.active_low_pwm)
ctl2 |= BLM_POLARITY_I965;
- intel_de_write(dev_priv, BLC_PWM_CTL2, ctl2);
- intel_de_posting_read(dev_priv, BLC_PWM_CTL2);
- intel_de_write(dev_priv, BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);
+ intel_de_write(display, BLC_PWM_CTL2, ctl2);
+ intel_de_posting_read(display, BLC_PWM_CTL2);
+ intel_de_write(display, BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);
intel_backlight_set_pwm_level(conn_state, level);
}
@@ -654,20 +649,22 @@ static void vlv_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
u32 ctl, ctl2;
- ctl2 = intel_de_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
+ ctl2 = intel_de_read(display, VLV_BLC_PWM_CTL2(pipe));
if (ctl2 & BLM_PWM_ENABLE) {
- drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] backlight already enabled\n",
+ connector->base.base.id, connector->base.name);
ctl2 &= ~BLM_PWM_ENABLE;
- intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe), ctl2);
+ intel_de_write(display, VLV_BLC_PWM_CTL2(pipe), ctl2);
}
ctl = panel->backlight.pwm_level_max << 16;
- intel_de_write(dev_priv, VLV_BLC_PWM_CTL(pipe), ctl);
+ intel_de_write(display, VLV_BLC_PWM_CTL(pipe), ctl);
/* XXX: combine this into above write? */
intel_backlight_set_pwm_level(conn_state, level);
@@ -675,50 +672,49 @@ static void vlv_enable_backlight(const struct intel_crtc_state *crtc_state,
ctl2 = 0;
if (panel->backlight.active_low_pwm)
ctl2 |= BLM_POLARITY_I965;
- intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe), ctl2);
- intel_de_posting_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
- intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe),
- ctl2 | BLM_PWM_ENABLE);
+ intel_de_write(display, VLV_BLC_PWM_CTL2(pipe), ctl2);
+ intel_de_posting_read(display, VLV_BLC_PWM_CTL2(pipe));
+ intel_de_write(display, VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);
}
static void bxt_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
u32 pwm_ctl, val;
/* Controller 1 uses the utility pin. */
if (panel->backlight.controller == 1) {
- val = intel_de_read(dev_priv, UTIL_PIN_CTL);
+ val = intel_de_read(display, UTIL_PIN_CTL);
if (val & UTIL_PIN_ENABLE) {
- drm_dbg_kms(&dev_priv->drm,
- "util pin already enabled\n");
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] utility pin already enabled\n",
+ connector->base.base.id, connector->base.name);
val &= ~UTIL_PIN_ENABLE;
- intel_de_write(dev_priv, UTIL_PIN_CTL, val);
+ intel_de_write(display, UTIL_PIN_CTL, val);
}
val = 0;
if (panel->backlight.util_pin_active_low)
val |= UTIL_PIN_POLARITY;
- intel_de_write(dev_priv, UTIL_PIN_CTL,
+ intel_de_write(display, UTIL_PIN_CTL,
val | UTIL_PIN_PIPE(pipe) | UTIL_PIN_MODE_PWM | UTIL_PIN_ENABLE);
}
- pwm_ctl = intel_de_read(dev_priv,
- BXT_BLC_PWM_CTL(panel->backlight.controller));
+ pwm_ctl = intel_de_read(display, BXT_BLC_PWM_CTL(panel->backlight.controller));
if (pwm_ctl & BXT_BLC_PWM_ENABLE) {
- drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] backlight already enabled\n",
+ connector->base.base.id, connector->base.name);
pwm_ctl &= ~BXT_BLC_PWM_ENABLE;
- intel_de_write(dev_priv,
- BXT_BLC_PWM_CTL(panel->backlight.controller),
+ intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
pwm_ctl);
}
- intel_de_write(dev_priv,
- BXT_BLC_PWM_FREQ(panel->backlight.controller),
+ intel_de_write(display, BXT_BLC_PWM_FREQ(panel->backlight.controller),
panel->backlight.pwm_level_max);
intel_backlight_set_pwm_level(conn_state, level);
@@ -727,11 +723,9 @@ static void bxt_enable_backlight(const struct intel_crtc_state *crtc_state,
if (panel->backlight.active_low_pwm)
pwm_ctl |= BXT_BLC_PWM_POLARITY;
- intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
- pwm_ctl);
- intel_de_posting_read(dev_priv,
- BXT_BLC_PWM_CTL(panel->backlight.controller));
- intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
+ intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller), pwm_ctl);
+ intel_de_posting_read(display, BXT_BLC_PWM_CTL(panel->backlight.controller));
+ intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
pwm_ctl | BXT_BLC_PWM_ENABLE);
}
@@ -739,22 +733,19 @@ static void cnp_enable_backlight(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state, u32 level)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 pwm_ctl;
- pwm_ctl = intel_de_read(dev_priv,
- BXT_BLC_PWM_CTL(panel->backlight.controller));
+ pwm_ctl = intel_de_read(display, BXT_BLC_PWM_CTL(panel->backlight.controller));
if (pwm_ctl & BXT_BLC_PWM_ENABLE) {
- drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
+ drm_dbg_kms(display->drm, "backlight already enabled\n");
pwm_ctl &= ~BXT_BLC_PWM_ENABLE;
- intel_de_write(dev_priv,
- BXT_BLC_PWM_CTL(panel->backlight.controller),
+ intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
pwm_ctl);
}
- intel_de_write(dev_priv,
- BXT_BLC_PWM_FREQ(panel->backlight.controller),
+ intel_de_write(display, BXT_BLC_PWM_FREQ(panel->backlight.controller),
panel->backlight.pwm_level_max);
intel_backlight_set_pwm_level(conn_state, level);
@@ -763,11 +754,9 @@ static void cnp_enable_backlight(const struct intel_crtc_state *crtc_state,
if (panel->backlight.active_low_pwm)
pwm_ctl |= BXT_BLC_PWM_POLARITY;
- intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
- pwm_ctl);
- intel_de_posting_read(dev_priv,
- BXT_BLC_PWM_CTL(panel->backlight.controller));
- intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
+ intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller), pwm_ctl);
+ intel_de_posting_read(display, BXT_BLC_PWM_CTL(panel->backlight.controller));
+ intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
pwm_ctl | BXT_BLC_PWM_ENABLE);
}
@@ -779,7 +768,7 @@ static void ext_pwm_enable_backlight(const struct intel_crtc_state *crtc_state,
pwm_set_relative_duty_cycle(&panel->backlight.pwm_state, level, 100);
panel->backlight.pwm_state.enabled = true;
- pwm_apply_state(panel->backlight.pwm, &panel->backlight.pwm_state);
+ pwm_apply_might_sleep(panel->backlight.pwm, &panel->backlight.pwm_state);
}
static void __intel_backlight_enable(const struct intel_crtc_state *crtc_state,
@@ -790,8 +779,8 @@ static void __intel_backlight_enable(const struct intel_crtc_state *crtc_state,
WARN_ON(panel->backlight.max == 0);
- if (panel->backlight.level <= panel->backlight.min) {
- panel->backlight.level = panel->backlight.max;
+ if (panel->backlight.level < panel->backlight.min) {
+ panel->backlight.level = panel->backlight.min;
if (panel->backlight.device)
panel->backlight.device->props.brightness =
scale_hw_to_user(connector,
@@ -802,44 +791,44 @@ static void __intel_backlight_enable(const struct intel_crtc_state *crtc_state,
panel->backlight.funcs->enable(crtc_state, conn_state, panel->backlight.level);
panel->backlight.enabled = true;
if (panel->backlight.device)
- panel->backlight.device->props.power = FB_BLANK_UNBLANK;
+ panel->backlight.device->props.power = BACKLIGHT_POWER_ON;
}
void intel_backlight_enable(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
if (!panel->backlight.present)
return;
- drm_dbg_kms(&dev_priv->drm, "pipe %c\n", pipe_name(pipe));
+ drm_dbg_kms(display->drm, "pipe %c\n", pipe_name(pipe));
- mutex_lock(&dev_priv->display.backlight.lock);
+ mutex_lock(&display->backlight.lock);
__intel_backlight_enable(crtc_state, conn_state);
- mutex_unlock(&dev_priv->display.backlight.lock);
+ mutex_unlock(&display->backlight.lock);
}
#if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
static u32 intel_panel_get_backlight(struct intel_connector *connector)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 val = 0;
- mutex_lock(&dev_priv->display.backlight.lock);
+ mutex_lock(&display->backlight.lock);
if (panel->backlight.enabled)
val = panel->backlight.funcs->get(connector, intel_connector_get_pipe(connector));
- mutex_unlock(&dev_priv->display.backlight.lock);
+ mutex_unlock(&display->backlight.lock);
- drm_dbg_kms(&dev_priv->drm, "get backlight PWM = %d\n", val);
+ drm_dbg_kms(display->drm, "get backlight PWM = %d\n", val);
return val;
}
@@ -858,16 +847,16 @@ static void intel_panel_set_backlight(const struct drm_connector_state *conn_sta
u32 user_level, u32 user_max)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 hw_level;
if (!panel->backlight.present)
return;
- mutex_lock(&dev_priv->display.backlight.lock);
+ mutex_lock(&display->backlight.lock);
- drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
+ drm_WARN_ON(display->drm, panel->backlight.max == 0);
hw_level = scale_user_to_hw(connector, user_level, user_max);
panel->backlight.level = hw_level;
@@ -875,18 +864,19 @@ static void intel_panel_set_backlight(const struct drm_connector_state *conn_sta
if (panel->backlight.enabled)
intel_panel_actually_set_backlight(conn_state, hw_level);
- mutex_unlock(&dev_priv->display.backlight.lock);
+ mutex_unlock(&display->backlight.lock);
}
static int intel_backlight_device_update_status(struct backlight_device *bd)
{
struct intel_connector *connector = bl_get_data(bd);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
- struct drm_device *dev = connector->base.dev;
- drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
- DRM_DEBUG_KMS("updating intel_backlight, brightness=%d/%d\n",
- bd->props.brightness, bd->props.max_brightness);
+ drm_modeset_lock(&display->drm->mode_config.connection_mutex, NULL);
+
+ drm_dbg_kms(display->drm, "updating intel_backlight, brightness=%d/%d\n",
+ bd->props.brightness, bd->props.max_brightness);
intel_panel_set_backlight(connector->base.state, bd->props.brightness,
bd->props.max_brightness);
@@ -898,36 +888,35 @@ static int intel_backlight_device_update_status(struct backlight_device *bd)
*/
if (panel->backlight.enabled) {
if (panel->backlight.power) {
- bool enable = bd->props.power == FB_BLANK_UNBLANK &&
+ bool enable = bd->props.power == BACKLIGHT_POWER_ON &&
bd->props.brightness != 0;
panel->backlight.power(connector, enable);
}
} else {
- bd->props.power = FB_BLANK_POWERDOWN;
+ bd->props.power = BACKLIGHT_POWER_OFF;
}
- drm_modeset_unlock(&dev->mode_config.connection_mutex);
+ drm_modeset_unlock(&display->drm->mode_config.connection_mutex);
+
return 0;
}
static int intel_backlight_device_get_brightness(struct backlight_device *bd)
{
struct intel_connector *connector = bl_get_data(bd);
- struct drm_device *dev = connector->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- intel_wakeref_t wakeref;
+ struct intel_display *display = to_intel_display(connector);
int ret = 0;
- with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
+ with_intel_display_rpm(display) {
u32 hw_level;
- drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+ drm_modeset_lock(&display->drm->mode_config.connection_mutex, NULL);
hw_level = intel_panel_get_backlight(connector);
ret = scale_hw_to_user(connector,
hw_level, bd->props.max_brightness);
- drm_modeset_unlock(&dev->mode_config.connection_mutex);
+ drm_modeset_unlock(&display->drm->mode_config.connection_mutex);
}
return ret;
@@ -940,7 +929,7 @@ static const struct backlight_ops intel_backlight_device_ops = {
int intel_backlight_device_register(struct intel_connector *connector)
{
- struct drm_i915_private *i915 = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
struct backlight_properties props;
struct backlight_device *bd;
@@ -956,7 +945,8 @@ int intel_backlight_device_register(struct intel_connector *connector)
WARN_ON(panel->backlight.max == 0);
if (!acpi_video_backlight_use_native()) {
- drm_info(&i915->drm, "Skipping intel_backlight registration\n");
+ drm_info(display->drm,
+ "Skipping intel_backlight registration\n");
return 0;
}
@@ -973,9 +963,9 @@ int intel_backlight_device_register(struct intel_connector *connector)
props.max_brightness);
if (panel->backlight.enabled)
- props.power = FB_BLANK_UNBLANK;
+ props.power = BACKLIGHT_POWER_ON;
else
- props.power = FB_BLANK_POWERDOWN;
+ props.power = BACKLIGHT_POWER_OFF;
name = kstrdup("intel_backlight", GFP_KERNEL);
if (!name)
@@ -993,7 +983,8 @@ int intel_backlight_device_register(struct intel_connector *connector)
*/
kfree(name);
name = kasprintf(GFP_KERNEL, "card%d-%s-backlight",
- i915->drm.primary->index, connector->base.name);
+ display->drm->primary->index,
+ connector->base.name);
if (!name)
return -ENOMEM;
}
@@ -1001,7 +992,7 @@ int intel_backlight_device_register(struct intel_connector *connector)
&intel_backlight_device_ops, &props);
if (IS_ERR(bd)) {
- drm_err(&i915->drm,
+ drm_err(display->drm,
"[CONNECTOR:%d:%s] backlight device %s register failed: %ld\n",
connector->base.base.id, connector->base.name, name, PTR_ERR(bd));
ret = PTR_ERR(bd);
@@ -1010,7 +1001,7 @@ int intel_backlight_device_register(struct intel_connector *connector)
panel->backlight.device = bd;
- drm_dbg_kms(&i915->drm,
+ drm_dbg_kms(display->drm,
"[CONNECTOR:%d:%s] backlight device %s registered\n",
connector->base.base.id, connector->base.name, name);
@@ -1037,9 +1028,9 @@ void intel_backlight_device_unregister(struct intel_connector *connector)
*/
static u32 cnp_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
- return DIV_ROUND_CLOSEST(KHz(RUNTIME_INFO(dev_priv)->rawclk_freq),
+ return DIV_ROUND_CLOSEST(KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq),
pwm_freq_hz);
}
@@ -1076,7 +1067,7 @@ static u32 spt_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
*/
static u32 lpt_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 mul, clock;
@@ -1085,7 +1076,7 @@ static u32 lpt_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
else
mul = 128;
- if (HAS_PCH_LPT_H(dev_priv))
+ if (HAS_PCH_LPT_H(display))
clock = MHz(135); /* LPT:H */
else
clock = MHz(24); /* LPT:LP */
@@ -1099,9 +1090,9 @@ static u32 lpt_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
*/
static u32 pch_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
- return DIV_ROUND_CLOSEST(KHz(RUNTIME_INFO(dev_priv)->rawclk_freq),
+ return DIV_ROUND_CLOSEST(KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq),
pwm_freq_hz * 128);
}
@@ -1115,13 +1106,13 @@ static u32 pch_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
*/
static u32 i9xx_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
int clock;
- if (IS_PINEVIEW(dev_priv))
- clock = KHz(RUNTIME_INFO(dev_priv)->rawclk_freq);
+ if (display->platform.pineview)
+ clock = KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq);
else
- clock = KHz(dev_priv->display.cdclk.hw.cdclk);
+ clock = KHz(display->cdclk.hw.cdclk);
return DIV_ROUND_CLOSEST(clock, pwm_freq_hz * 32);
}
@@ -1133,13 +1124,13 @@ static u32 i9xx_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
*/
static u32 i965_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
int clock;
- if (IS_G4X(dev_priv))
- clock = KHz(RUNTIME_INFO(dev_priv)->rawclk_freq);
+ if (display->platform.g4x)
+ clock = KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq);
else
- clock = KHz(dev_priv->display.cdclk.hw.cdclk);
+ clock = KHz(display->cdclk.hw.cdclk);
return DIV_ROUND_CLOSEST(clock, pwm_freq_hz * 128);
}
@@ -1151,17 +1142,17 @@ static u32 i965_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
*/
static u32 vlv_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
int mul, clock;
- if ((intel_de_read(dev_priv, CBR1_VLV) & CBR_PWM_CLOCK_MUX_SELECT) == 0) {
- if (IS_CHERRYVIEW(dev_priv))
+ if ((intel_de_read(display, CBR1_VLV) & CBR_PWM_CLOCK_MUX_SELECT) == 0) {
+ if (display->platform.cherryview)
clock = KHz(19200);
else
clock = MHz(25);
mul = 16;
} else {
- clock = KHz(RUNTIME_INFO(dev_priv)->rawclk_freq);
+ clock = KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq);
mul = 128;
}
@@ -1170,16 +1161,16 @@ static u32 vlv_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
static u16 get_vbt_pwm_freq(struct intel_connector *connector)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
u16 pwm_freq_hz = connector->panel.vbt.backlight.pwm_freq_hz;
if (pwm_freq_hz) {
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(display->drm,
"VBT defined backlight frequency %u Hz\n",
pwm_freq_hz);
} else {
pwm_freq_hz = 200;
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(display->drm,
"default backlight frequency %u Hz\n",
pwm_freq_hz);
}
@@ -1189,20 +1180,20 @@ static u16 get_vbt_pwm_freq(struct intel_connector *connector)
static u32 get_backlight_max_vbt(struct intel_connector *connector)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u16 pwm_freq_hz = get_vbt_pwm_freq(connector);
u32 pwm;
if (!panel->backlight.pwm_funcs->hz_to_pwm) {
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(display->drm,
"backlight frequency conversion not supported\n");
return 0;
}
pwm = panel->backlight.pwm_funcs->hz_to_pwm(connector, pwm_freq_hz);
if (!pwm) {
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(display->drm,
"backlight frequency conversion failed\n");
return 0;
}
@@ -1215,11 +1206,11 @@ static u32 get_backlight_max_vbt(struct intel_connector *connector)
*/
static u32 get_backlight_min_vbt(struct intel_connector *connector)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
int min;
- drm_WARN_ON(&dev_priv->drm, panel->backlight.pwm_level_max == 0);
+ drm_WARN_ON(display->drm, panel->backlight.pwm_level_max == 0);
/*
* XXX: If the vbt value is 255, it makes min equal to max, which leads
@@ -1230,7 +1221,7 @@ static u32 get_backlight_min_vbt(struct intel_connector *connector)
*/
min = clamp_t(int, connector->panel.vbt.backlight.min_brightness, 0, 64);
if (min != connector->panel.vbt.backlight.min_brightness) {
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(display->drm,
"clamping VBT min backlight %d/255 to %d/255\n",
connector->panel.vbt.backlight.min_brightness, min);
}
@@ -1241,24 +1232,24 @@ static u32 get_backlight_min_vbt(struct intel_connector *connector)
static int lpt_setup_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 cpu_ctl2, pch_ctl1, pch_ctl2, val;
bool alt, cpu_mode;
- if (HAS_PCH_LPT(dev_priv))
- alt = intel_de_read(dev_priv, SOUTH_CHICKEN2) & LPT_PWM_GRANULARITY;
+ if (HAS_PCH_LPT(display))
+ alt = intel_de_read(display, SOUTH_CHICKEN2) & LPT_PWM_GRANULARITY;
else
- alt = intel_de_read(dev_priv, SOUTH_CHICKEN1) & SPT_PWM_GRANULARITY;
+ alt = intel_de_read(display, SOUTH_CHICKEN1) & SPT_PWM_GRANULARITY;
panel->backlight.alternate_pwm_increment = alt;
- pch_ctl1 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
+ pch_ctl1 = intel_de_read(display, BLC_PWM_PCH_CTL1);
panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
- pch_ctl2 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL2);
+ pch_ctl2 = intel_de_read(display, BLC_PWM_PCH_CTL2);
panel->backlight.pwm_level_max = pch_ctl2 >> 16;
- cpu_ctl2 = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
+ cpu_ctl2 = intel_de_read(display, BLC_PWM_CPU_CTL2);
if (!panel->backlight.pwm_level_max)
panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
@@ -1270,38 +1261,42 @@ static int lpt_setup_backlight(struct intel_connector *connector, enum pipe unus
panel->backlight.pwm_enabled = pch_ctl1 & BLM_PCH_PWM_ENABLE;
- cpu_mode = panel->backlight.pwm_enabled && HAS_PCH_LPT(dev_priv) &&
+ cpu_mode = panel->backlight.pwm_enabled && HAS_PCH_LPT(display) &&
!(pch_ctl1 & BLM_PCH_OVERRIDE_ENABLE) &&
(cpu_ctl2 & BLM_PWM_ENABLE);
if (cpu_mode) {
val = pch_get_backlight(connector, unused);
- drm_dbg_kms(&dev_priv->drm,
+ drm_dbg_kms(display->drm,
"CPU backlight register was enabled, switching to PCH override\n");
/* Write converted CPU PWM value to PCH override register */
lpt_set_backlight(connector->base.state, val);
- intel_de_write(dev_priv, BLC_PWM_PCH_CTL1,
+ intel_de_write(display, BLC_PWM_PCH_CTL1,
pch_ctl1 | BLM_PCH_OVERRIDE_ENABLE);
- intel_de_write(dev_priv, BLC_PWM_CPU_CTL2,
+ intel_de_write(display, BLC_PWM_CPU_CTL2,
cpu_ctl2 & ~BLM_PWM_ENABLE);
}
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] Using native PCH PWM for backlight control\n",
+ connector->base.base.id, connector->base.name);
+
return 0;
}
static int pch_setup_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 cpu_ctl2, pch_ctl1, pch_ctl2;
- pch_ctl1 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
+ pch_ctl1 = intel_de_read(display, BLC_PWM_PCH_CTL1);
panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
- pch_ctl2 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL2);
+ pch_ctl2 = intel_de_read(display, BLC_PWM_PCH_CTL2);
panel->backlight.pwm_level_max = pch_ctl2 >> 16;
if (!panel->backlight.pwm_level_max)
@@ -1312,25 +1307,29 @@ static int pch_setup_backlight(struct intel_connector *connector, enum pipe unus
panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
- cpu_ctl2 = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
+ cpu_ctl2 = intel_de_read(display, BLC_PWM_CPU_CTL2);
panel->backlight.pwm_enabled = (cpu_ctl2 & BLM_PWM_ENABLE) &&
(pch_ctl1 & BLM_PCH_PWM_ENABLE);
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] Using native PCH PWM for backlight control\n",
+ connector->base.base.id, connector->base.name);
+
return 0;
}
static int i9xx_setup_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 ctl, val;
- ctl = intel_de_read(dev_priv, BLC_PWM_CTL);
+ ctl = intel_de_read(display, BLC_PWM_CTL);
- if (DISPLAY_VER(dev_priv) == 2 || IS_I915GM(dev_priv) || IS_I945GM(dev_priv))
+ if (DISPLAY_VER(display) == 2 || display->platform.i915gm || display->platform.i945gm)
panel->backlight.combination_mode = ctl & BLM_LEGACY_MODE;
- if (IS_PINEVIEW(dev_priv))
+ if (display->platform.pineview)
panel->backlight.active_low_pwm = ctl & BLM_POLARITY_PNV;
panel->backlight.pwm_level_max = ctl >> 17;
@@ -1354,20 +1353,24 @@ static int i9xx_setup_backlight(struct intel_connector *connector, enum pipe unu
panel->backlight.pwm_enabled = val != 0;
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] Using native PWM for backlight control\n",
+ connector->base.base.id, connector->base.name);
+
return 0;
}
static int i965_setup_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 ctl, ctl2;
- ctl2 = intel_de_read(dev_priv, BLC_PWM_CTL2);
+ ctl2 = intel_de_read(display, BLC_PWM_CTL2);
panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;
panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
- ctl = intel_de_read(dev_priv, BLC_PWM_CTL);
+ ctl = intel_de_read(display, BLC_PWM_CTL);
panel->backlight.pwm_level_max = ctl >> 16;
if (!panel->backlight.pwm_level_max)
@@ -1383,22 +1386,26 @@ static int i965_setup_backlight(struct intel_connector *connector, enum pipe unu
panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] Using native PWM for backlight control\n",
+ connector->base.base.id, connector->base.name);
+
return 0;
}
static int vlv_setup_backlight(struct intel_connector *connector, enum pipe pipe)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 ctl, ctl2;
- if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
+ if (drm_WARN_ON(display->drm, pipe != PIPE_A && pipe != PIPE_B))
return -ENODEV;
- ctl2 = intel_de_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
+ ctl2 = intel_de_read(display, VLV_BLC_PWM_CTL2(pipe));
panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
- ctl = intel_de_read(dev_priv, VLV_BLC_PWM_CTL(pipe));
+ ctl = intel_de_read(display, VLV_BLC_PWM_CTL(pipe));
panel->backlight.pwm_level_max = ctl >> 16;
if (!panel->backlight.pwm_level_max)
@@ -1411,31 +1418,35 @@ static int vlv_setup_backlight(struct intel_connector *connector, enum pipe pipe
panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] Using native PWM for backlight control (on pipe %c)\n",
+ connector->base.base.id, connector->base.name, pipe_name(pipe));
+
return 0;
}
static int
bxt_setup_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 pwm_ctl, val;
panel->backlight.controller = connector->panel.vbt.backlight.controller;
- pwm_ctl = intel_de_read(dev_priv,
+ pwm_ctl = intel_de_read(display,
BXT_BLC_PWM_CTL(panel->backlight.controller));
/* Controller 1 uses the utility pin. */
if (panel->backlight.controller == 1) {
- val = intel_de_read(dev_priv, UTIL_PIN_CTL);
+ val = intel_de_read(display, UTIL_PIN_CTL);
panel->backlight.util_pin_active_low =
val & UTIL_PIN_POLARITY;
}
panel->backlight.active_low_pwm = pwm_ctl & BXT_BLC_PWM_POLARITY;
panel->backlight.pwm_level_max =
- intel_de_read(dev_priv, BXT_BLC_PWM_FREQ(panel->backlight.controller));
+ intel_de_read(display, BXT_BLC_PWM_FREQ(panel->backlight.controller));
if (!panel->backlight.pwm_level_max)
panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
@@ -1447,29 +1458,67 @@ bxt_setup_backlight(struct intel_connector *connector, enum pipe unused)
panel->backlight.pwm_enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] Using native PWM for backlight control (controller=%d)\n",
+ connector->base.base.id, connector->base.name,
+ panel->backlight.controller);
+
return 0;
}
+static int cnp_num_backlight_controllers(struct intel_display *display)
+{
+ if (INTEL_PCH_TYPE(display) >= PCH_MTL)
+ return 2;
+
+ if (INTEL_PCH_TYPE(display) >= PCH_DG1)
+ return 1;
+
+ if (INTEL_PCH_TYPE(display) >= PCH_ICP)
+ return 2;
+
+ return 1;
+}
+
+static bool cnp_backlight_controller_is_valid(struct intel_display *display, int controller)
+{
+ if (controller < 0 || controller >= cnp_num_backlight_controllers(display))
+ return false;
+
+ if (controller == 1 &&
+ INTEL_PCH_TYPE(display) >= PCH_ICP &&
+ INTEL_PCH_TYPE(display) <= PCH_ADP)
+ return intel_de_read(display, SOUTH_CHICKEN1) & ICP_SECOND_PPS_IO_SELECT;
+
+ return true;
+}
+
static int
cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
u32 pwm_ctl;
/*
* CNP has the BXT implementation of backlight, but with only one
- * controller. TODO: ICP has multiple controllers but we only use
- * controller 0 for now.
+ * controller. ICP+ can have two controllers, depending on pin muxing.
*/
- panel->backlight.controller = 0;
+ panel->backlight.controller = connector->panel.vbt.backlight.controller;
+ if (!cnp_backlight_controller_is_valid(display, panel->backlight.controller)) {
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] Invalid backlight controller %d, assuming 0\n",
+ connector->base.base.id, connector->base.name,
+ panel->backlight.controller);
+ panel->backlight.controller = 0;
+ }
- pwm_ctl = intel_de_read(dev_priv,
+ pwm_ctl = intel_de_read(display,
BXT_BLC_PWM_CTL(panel->backlight.controller));
panel->backlight.active_low_pwm = pwm_ctl & BXT_BLC_PWM_POLARITY;
panel->backlight.pwm_level_max =
- intel_de_read(dev_priv, BXT_BLC_PWM_FREQ(panel->backlight.controller));
+ intel_de_read(display, BXT_BLC_PWM_FREQ(panel->backlight.controller));
if (!panel->backlight.pwm_level_max)
panel->backlight.pwm_level_max = get_backlight_max_vbt(connector);
@@ -1481,30 +1530,37 @@ cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
panel->backlight.pwm_enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] Using native PCH PWM for backlight control (controller=%d)\n",
+ connector->base.base.id, connector->base.name,
+ panel->backlight.controller);
+
return 0;
}
static int ext_pwm_setup_backlight(struct intel_connector *connector,
enum pipe pipe)
{
- struct drm_device *dev = connector->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
const char *desc;
u32 level;
/* Get the right PWM chip for DSI backlight according to VBT */
if (connector->panel.vbt.dsi.config->pwm_blc == PPS_BLC_PMIC) {
- panel->backlight.pwm = pwm_get(dev->dev, "pwm_pmic_backlight");
+ panel->backlight.pwm = pwm_get(display->drm->dev,
+ "pwm_pmic_backlight");
desc = "PMIC";
} else {
- panel->backlight.pwm = pwm_get(dev->dev, "pwm_soc_backlight");
+ panel->backlight.pwm = pwm_get(display->drm->dev,
+ "pwm_soc_backlight");
desc = "SoC";
}
if (IS_ERR(panel->backlight.pwm)) {
- drm_err(&dev_priv->drm, "Failed to get the %s PWM chip\n",
- desc);
+ drm_err(display->drm,
+ "[CONNECTOR:%d:%s] Failed to get the %s PWM chip\n",
+ connector->base.base.id, connector->base.name, desc);
panel->backlight.pwm = NULL;
return -ENODEV;
}
@@ -1521,7 +1577,9 @@ static int ext_pwm_setup_backlight(struct intel_connector *connector,
level = intel_backlight_invert_pwm_level(connector, level);
panel->backlight.pwm_enabled = true;
- drm_dbg_kms(&dev_priv->drm, "PWM already enabled at freq %ld, VBT freq %d, level %d\n",
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] PWM already enabled at freq %ld, VBT freq %d, level %d\n",
+ connector->base.base.id, connector->base.name,
NSEC_PER_SEC / (unsigned long)panel->backlight.pwm_state.period,
get_vbt_pwm_freq(connector), level);
} else {
@@ -1530,8 +1588,10 @@ static int ext_pwm_setup_backlight(struct intel_connector *connector,
NSEC_PER_SEC / get_vbt_pwm_freq(connector);
}
- drm_info(&dev_priv->drm, "Using %s PWM for LCD backlight control\n",
- desc);
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] Using %s PWM for backlight control\n",
+ connector->base.base.id, connector->base.name, desc);
+
return 0;
}
@@ -1574,8 +1634,9 @@ static void intel_pwm_disable_backlight(const struct drm_connector_state *conn_s
static int intel_pwm_setup_backlight(struct intel_connector *connector, enum pipe pipe)
{
struct intel_panel *panel = &connector->panel;
- int ret = panel->backlight.pwm_funcs->setup(connector, pipe);
+ int ret;
+ ret = panel->backlight.pwm_funcs->setup(connector, pipe);
if (ret < 0)
return ret;
@@ -1593,57 +1654,59 @@ void intel_backlight_update(struct intel_atomic_state *state,
const struct drm_connector_state *conn_state)
{
struct intel_connector *connector = to_intel_connector(conn_state->connector);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
if (!panel->backlight.present)
return;
- mutex_lock(&dev_priv->display.backlight.lock);
+ mutex_lock(&display->backlight.lock);
if (!panel->backlight.enabled)
__intel_backlight_enable(crtc_state, conn_state);
- mutex_unlock(&dev_priv->display.backlight.lock);
+ mutex_unlock(&display->backlight.lock);
}
int intel_backlight_setup(struct intel_connector *connector, enum pipe pipe)
{
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
struct intel_panel *panel = &connector->panel;
int ret;
if (!connector->panel.vbt.backlight.present) {
- if (intel_has_quirk(dev_priv, QUIRK_BACKLIGHT_PRESENT)) {
- drm_dbg_kms(&dev_priv->drm,
- "no backlight present per VBT, but present per quirk\n");
+ if (intel_has_quirk(display, QUIRK_BACKLIGHT_PRESENT)) {
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] no backlight present per VBT, but present per quirk\n",
+ connector->base.base.id, connector->base.name);
} else {
- drm_dbg_kms(&dev_priv->drm,
- "no backlight present per VBT\n");
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] no backlight present per VBT\n",
+ connector->base.base.id, connector->base.name);
return 0;
}
}
/* ensure intel_panel has been initialized first */
- if (drm_WARN_ON(&dev_priv->drm, !panel->backlight.funcs))
+ if (drm_WARN_ON(display->drm, !panel->backlight.funcs))
return -ENODEV;
/* set level and max in panel struct */
- mutex_lock(&dev_priv->display.backlight.lock);
+ mutex_lock(&display->backlight.lock);
ret = panel->backlight.funcs->setup(connector, pipe);
- mutex_unlock(&dev_priv->display.backlight.lock);
+ mutex_unlock(&display->backlight.lock);
if (ret) {
- drm_dbg_kms(&dev_priv->drm,
- "failed to setup backlight for connector %s\n",
- connector->base.name);
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] failed to setup backlight\n",
+ connector->base.base.id, connector->base.name);
return ret;
}
panel->backlight.present = true;
- drm_dbg_kms(&dev_priv->drm,
- "Connector %s backlight initialized, %s, brightness %u/%u\n",
- connector->base.name,
+ drm_dbg_kms(display->drm,
+ "[CONNECTOR:%d:%s] backlight initialized, %s, brightness %u/%u\n",
+ connector->base.base.id, connector->base.name,
str_enabled_disabled(panel->backlight.enabled),
panel->backlight.level, panel->backlight.max);
@@ -1752,30 +1815,30 @@ void intel_backlight_init_funcs(struct intel_panel *panel)
{
struct intel_connector *connector =
container_of(panel, struct intel_connector, panel);
- struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+ struct intel_display *display = to_intel_display(connector);
if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI &&
intel_dsi_dcs_init_backlight_funcs(connector) == 0)
return;
- if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) {
+ if (display->platform.geminilake || display->platform.broxton) {
panel->backlight.pwm_funcs = &bxt_pwm_funcs;
- } else if (INTEL_PCH_TYPE(dev_priv) >= PCH_CNP) {
+ } else if (INTEL_PCH_TYPE(display) >= PCH_CNP) {
panel->backlight.pwm_funcs = &cnp_pwm_funcs;
- } else if (INTEL_PCH_TYPE(dev_priv) >= PCH_LPT) {
- if (HAS_PCH_LPT(dev_priv))
+ } else if (INTEL_PCH_TYPE(display) >= PCH_LPT_H) {
+ if (HAS_PCH_LPT(display))
panel->backlight.pwm_funcs = &lpt_pwm_funcs;
else
panel->backlight.pwm_funcs = &spt_pwm_funcs;
- } else if (HAS_PCH_SPLIT(dev_priv)) {
+ } else if (HAS_PCH_SPLIT(display)) {
panel->backlight.pwm_funcs = &pch_pwm_funcs;
- } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
+ } else if (display->platform.valleyview || display->platform.cherryview) {
if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI) {
panel->backlight.pwm_funcs = &ext_pwm_funcs;
} else {
panel->backlight.pwm_funcs = &vlv_pwm_funcs;
}
- } else if (DISPLAY_VER(dev_priv) == 4) {
+ } else if (DISPLAY_VER(display) == 4) {
panel->backlight.pwm_funcs = &i965_pwm_funcs;
} else {
panel->backlight.pwm_funcs = &i9xx_pwm_funcs;
@@ -1785,7 +1848,7 @@ void intel_backlight_init_funcs(struct intel_panel *panel)
if (intel_dp_aux_init_backlight_funcs(connector) == 0)
return;
- if (!intel_has_quirk(dev_priv, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK))
+ if (!intel_has_quirk(display, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK))
connector->panel.backlight.power = intel_pps_backlight_power;
}
generated by cgit (git 2.34.1) at 2025-12-24 20:24:51 +0000