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path: root/drivers/gpu/drm/i915/intel_lvds.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
-rw-r--r--drivers/gpu/drm/i915/intel_lvds.c82
1 files changed, 48 insertions, 34 deletions
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 2b3fa7a3c028..b66806a37d37 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -30,6 +30,7 @@
#include <acpi/button.h>
#include <linux/dmi.h>
#include <linux/i2c.h>
+#include <linux/slab.h>
#include "drmP.h"
#include "drm.h"
#include "drm_crtc.h"
@@ -238,8 +239,8 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
struct drm_encoder *tmp_encoder;
- struct intel_output *intel_output = enc_to_intel_output(encoder);
- struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
+ struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+ struct intel_lvds_priv *lvds_priv = intel_encoder->dev_priv;
u32 pfit_control = 0, pfit_pgm_ratios = 0;
int left_border = 0, right_border = 0, top_border = 0;
int bottom_border = 0;
@@ -586,8 +587,8 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder,
{
struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_output *intel_output = enc_to_intel_output(encoder);
- struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
+ struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+ struct intel_lvds_priv *lvds_priv = intel_encoder->dev_priv;
/*
* The LVDS pin pair will already have been turned on in the
@@ -634,14 +635,16 @@ static enum drm_connector_status intel_lvds_detect(struct drm_connector *connect
static int intel_lvds_get_modes(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- struct intel_output *intel_output = to_intel_output(connector);
+ struct intel_encoder *intel_encoder = to_intel_encoder(connector);
struct drm_i915_private *dev_priv = dev->dev_private;
int ret = 0;
- ret = intel_ddc_get_modes(intel_output);
+ if (dev_priv->lvds_edid_good) {
+ ret = intel_ddc_get_modes(intel_encoder);
- if (ret)
- return ret;
+ if (ret)
+ return ret;
+ }
/* Didn't get an EDID, so
* Set wide sync ranges so we get all modes
@@ -714,11 +717,11 @@ static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
static void intel_lvds_destroy(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- struct intel_output *intel_output = to_intel_output(connector);
+ struct intel_encoder *intel_encoder = to_intel_encoder(connector);
struct drm_i915_private *dev_priv = dev->dev_private;
- if (intel_output->ddc_bus)
- intel_i2c_destroy(intel_output->ddc_bus);
+ if (intel_encoder->ddc_bus)
+ intel_i2c_destroy(intel_encoder->ddc_bus);
if (dev_priv->lid_notifier.notifier_call)
acpi_lid_notifier_unregister(&dev_priv->lid_notifier);
drm_sysfs_connector_remove(connector);
@@ -731,13 +734,13 @@ static int intel_lvds_set_property(struct drm_connector *connector,
uint64_t value)
{
struct drm_device *dev = connector->dev;
- struct intel_output *intel_output =
- to_intel_output(connector);
+ struct intel_encoder *intel_encoder =
+ to_intel_encoder(connector);
if (property == dev->mode_config.scaling_mode_property &&
connector->encoder) {
struct drm_crtc *crtc = connector->encoder->crtc;
- struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
+ struct intel_lvds_priv *lvds_priv = intel_encoder->dev_priv;
if (value == DRM_MODE_SCALE_NONE) {
DRM_DEBUG_KMS("no scaling not supported\n");
return 0;
@@ -857,6 +860,14 @@ static const struct dmi_system_id intel_no_lvds[] = {
DMI_MATCH(DMI_PRODUCT_VERSION, "AO00001JW"),
},
},
+ {
+ .callback = intel_no_lvds_dmi_callback,
+ .ident = "Clientron U800",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "U800"),
+ },
+ },
{ } /* terminating entry */
};
@@ -967,7 +978,7 @@ static int lvds_is_present_in_vbt(struct drm_device *dev)
void intel_lvds_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_output *intel_output;
+ struct intel_encoder *intel_encoder;
struct drm_connector *connector;
struct drm_encoder *encoder;
struct drm_display_mode *scan; /* *modes, *bios_mode; */
@@ -995,40 +1006,40 @@ void intel_lvds_init(struct drm_device *dev)
gpio = PCH_GPIOC;
}
- intel_output = kzalloc(sizeof(struct intel_output) +
+ intel_encoder = kzalloc(sizeof(struct intel_encoder) +
sizeof(struct intel_lvds_priv), GFP_KERNEL);
- if (!intel_output) {
+ if (!intel_encoder) {
return;
}
- connector = &intel_output->base;
- encoder = &intel_output->enc;
- drm_connector_init(dev, &intel_output->base, &intel_lvds_connector_funcs,
+ connector = &intel_encoder->base;
+ encoder = &intel_encoder->enc;
+ drm_connector_init(dev, &intel_encoder->base, &intel_lvds_connector_funcs,
DRM_MODE_CONNECTOR_LVDS);
- drm_encoder_init(dev, &intel_output->enc, &intel_lvds_enc_funcs,
+ drm_encoder_init(dev, &intel_encoder->enc, &intel_lvds_enc_funcs,
DRM_MODE_ENCODER_LVDS);
- drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc);
- intel_output->type = INTEL_OUTPUT_LVDS;
+ drm_mode_connector_attach_encoder(&intel_encoder->base, &intel_encoder->enc);
+ intel_encoder->type = INTEL_OUTPUT_LVDS;
- intel_output->clone_mask = (1 << INTEL_LVDS_CLONE_BIT);
- intel_output->crtc_mask = (1 << 1);
+ intel_encoder->clone_mask = (1 << INTEL_LVDS_CLONE_BIT);
+ intel_encoder->crtc_mask = (1 << 1);
drm_encoder_helper_add(encoder, &intel_lvds_helper_funcs);
drm_connector_helper_add(connector, &intel_lvds_connector_helper_funcs);
connector->display_info.subpixel_order = SubPixelHorizontalRGB;
connector->interlace_allowed = false;
connector->doublescan_allowed = false;
- lvds_priv = (struct intel_lvds_priv *)(intel_output + 1);
- intel_output->dev_priv = lvds_priv;
+ lvds_priv = (struct intel_lvds_priv *)(intel_encoder + 1);
+ intel_encoder->dev_priv = lvds_priv;
/* create the scaling mode property */
drm_mode_create_scaling_mode_property(dev);
/*
* the initial panel fitting mode will be FULL_SCREEN.
*/
- drm_connector_attach_property(&intel_output->base,
+ drm_connector_attach_property(&intel_encoder->base,
dev->mode_config.scaling_mode_property,
DRM_MODE_SCALE_FULLSCREEN);
lvds_priv->fitting_mode = DRM_MODE_SCALE_FULLSCREEN;
@@ -1043,8 +1054,8 @@ void intel_lvds_init(struct drm_device *dev)
*/
/* Set up the DDC bus. */
- intel_output->ddc_bus = intel_i2c_create(dev, gpio, "LVDSDDC_C");
- if (!intel_output->ddc_bus) {
+ intel_encoder->ddc_bus = intel_i2c_create(dev, gpio, "LVDSDDC_C");
+ if (!intel_encoder->ddc_bus) {
dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration "
"failed.\n");
goto failed;
@@ -1054,7 +1065,10 @@ void intel_lvds_init(struct drm_device *dev)
* Attempt to get the fixed panel mode from DDC. Assume that the
* preferred mode is the right one.
*/
- intel_ddc_get_modes(intel_output);
+ dev_priv->lvds_edid_good = true;
+
+ if (!intel_ddc_get_modes(intel_encoder))
+ dev_priv->lvds_edid_good = false;
list_for_each_entry(scan, &connector->probed_modes, head) {
mutex_lock(&dev->mode_config.mutex);
@@ -1132,9 +1146,9 @@ out:
failed:
DRM_DEBUG_KMS("No LVDS modes found, disabling.\n");
- if (intel_output->ddc_bus)
- intel_i2c_destroy(intel_output->ddc_bus);
+ if (intel_encoder->ddc_bus)
+ intel_i2c_destroy(intel_encoder->ddc_bus);
drm_connector_cleanup(connector);
drm_encoder_cleanup(encoder);
- kfree(intel_output);
+ kfree(intel_encoder);
}
generated by cgit (git 2.34.1) at 2024-05-23 07:30:07 +0000