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path: root/drivers/gpu/drm/panel/panel-innolux-p079zca.c
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Diffstat (limited to 'drivers/gpu/drm/panel/panel-innolux-p079zca.c')
-rw-r--r--drivers/gpu/drm/panel/panel-innolux-p079zca.c483
1 files changed, 483 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
new file mode 100644
index 000000000000..80afeeab9475
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
@@ -0,0 +1,483 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_device.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct innolux_panel;
+
+struct panel_desc {
+ const struct drm_display_mode *mode;
+ unsigned int bpc;
+ struct {
+ unsigned int width;
+ unsigned int height;
+ } size;
+
+ unsigned long flags;
+ enum mipi_dsi_pixel_format format;
+ int (*init)(struct innolux_panel *innolux);
+ unsigned int lanes;
+ const char * const *supply_names;
+ unsigned int num_supplies;
+ unsigned int sleep_mode_delay;
+ unsigned int power_down_delay;
+};
+
+struct innolux_panel {
+ struct drm_panel base;
+ struct mipi_dsi_device *link;
+ const struct panel_desc *desc;
+
+ struct regulator_bulk_data *supplies;
+ struct gpio_desc *enable_gpio;
+};
+
+static inline struct innolux_panel *to_innolux_panel(struct drm_panel *panel)
+{
+ return container_of(panel, struct innolux_panel, base);
+}
+
+static int innolux_panel_unprepare(struct drm_panel *panel)
+{
+ struct innolux_panel *innolux = to_innolux_panel(panel);
+ int err;
+
+ err = mipi_dsi_dcs_set_display_off(innolux->link);
+ if (err < 0)
+ dev_err(panel->dev, "failed to set display off: %d\n", err);
+
+ err = mipi_dsi_dcs_enter_sleep_mode(innolux->link);
+ if (err < 0) {
+ dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);
+ return err;
+ }
+
+ if (innolux->desc->sleep_mode_delay)
+ msleep(innolux->desc->sleep_mode_delay);
+
+ gpiod_set_value_cansleep(innolux->enable_gpio, 0);
+
+ if (innolux->desc->power_down_delay)
+ msleep(innolux->desc->power_down_delay);
+
+ err = regulator_bulk_disable(innolux->desc->num_supplies,
+ innolux->supplies);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int innolux_panel_prepare(struct drm_panel *panel)
+{
+ struct innolux_panel *innolux = to_innolux_panel(panel);
+ int err;
+
+ gpiod_set_value_cansleep(innolux->enable_gpio, 0);
+
+ err = regulator_bulk_enable(innolux->desc->num_supplies,
+ innolux->supplies);
+ if (err < 0)
+ return err;
+
+ /* p079zca: t2 (20ms), p097pfg: t4 (15ms) */
+ usleep_range(20000, 21000);
+
+ gpiod_set_value_cansleep(innolux->enable_gpio, 1);
+
+ /* p079zca: t4, p097pfg: t5 */
+ usleep_range(20000, 21000);
+
+ if (innolux->desc->init) {
+ err = innolux->desc->init(innolux);
+ if (err < 0)
+ goto poweroff;
+ }
+
+ err = mipi_dsi_dcs_exit_sleep_mode(innolux->link);
+ if (err < 0) {
+ dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);
+ goto poweroff;
+ }
+
+ /* T6: 120ms - 1000ms*/
+ msleep(120);
+
+ err = mipi_dsi_dcs_set_display_on(innolux->link);
+ if (err < 0) {
+ dev_err(panel->dev, "failed to set display on: %d\n", err);
+ goto poweroff;
+ }
+
+ /* T7: 5ms */
+ usleep_range(5000, 6000);
+
+ return 0;
+
+poweroff:
+ gpiod_set_value_cansleep(innolux->enable_gpio, 0);
+ regulator_bulk_disable(innolux->desc->num_supplies, innolux->supplies);
+
+ return err;
+}
+
+static const char * const innolux_p079zca_supply_names[] = {
+ "power",
+};
+
+static const struct drm_display_mode innolux_p079zca_mode = {
+ .clock = 56900,
+ .hdisplay = 768,
+ .hsync_start = 768 + 40,
+ .hsync_end = 768 + 40 + 40,
+ .htotal = 768 + 40 + 40 + 40,
+ .vdisplay = 1024,
+ .vsync_start = 1024 + 20,
+ .vsync_end = 1024 + 20 + 4,
+ .vtotal = 1024 + 20 + 4 + 20,
+};
+
+static const struct panel_desc innolux_p079zca_panel_desc = {
+ .mode = &innolux_p079zca_mode,
+ .bpc = 8,
+ .size = {
+ .width = 120,
+ .height = 160,
+ },
+ .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+ MIPI_DSI_MODE_LPM,
+ .format = MIPI_DSI_FMT_RGB888,
+ .lanes = 4,
+ .supply_names = innolux_p079zca_supply_names,
+ .num_supplies = ARRAY_SIZE(innolux_p079zca_supply_names),
+ .power_down_delay = 80, /* T8: 80ms - 1000ms */
+};
+
+static const char * const innolux_p097pfg_supply_names[] = {
+ "avdd",
+ "avee",
+};
+
+static const struct drm_display_mode innolux_p097pfg_mode = {
+ .clock = 229000,
+ .hdisplay = 1536,
+ .hsync_start = 1536 + 100,
+ .hsync_end = 1536 + 100 + 24,
+ .htotal = 1536 + 100 + 24 + 100,
+ .vdisplay = 2048,
+ .vsync_start = 2048 + 100,
+ .vsync_end = 2048 + 100 + 2,
+ .vtotal = 2048 + 100 + 2 + 18,
+};
+
+static void innolux_panel_write_multi(struct mipi_dsi_multi_context *ctx,
+ const void *payload, size_t size)
+{
+ mipi_dsi_generic_write_multi(ctx, payload, size);
+
+ /*
+ * Included by random guessing, because without this
+ * (or at least, some delay), the panel sometimes
+ * didn't appear to pick up the command sequence.
+ */
+ mipi_dsi_dcs_nop_multi(ctx);
+}
+
+#define innolux_panel_init_cmd_multi(ctx, seq...) \
+ do { \
+ static const u8 d[] = { seq }; \
+ innolux_panel_write_multi(ctx, d, ARRAY_SIZE(d)); \
+ } while (0)
+
+#define innolux_panel_switch_page(ctx, page) \
+ innolux_panel_init_cmd_multi(ctx, 0xf0, 0x55, 0xaa, 0x52, 0x08, (page))
+
+/*
+ * Display manufacturer failed to provide init sequencing according to
+ * https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/892065/
+ * so the init sequence stems from a register dump of a working panel.
+ */
+static int innolux_p097pfg_init(struct innolux_panel *innolux)
+{
+ struct mipi_dsi_multi_context ctx = { .dsi = innolux->link };
+
+ innolux_panel_switch_page(&ctx, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xb1, 0xe8, 0x11);
+ innolux_panel_init_cmd_multi(&ctx, 0xb2, 0x25, 0x02);
+ innolux_panel_init_cmd_multi(&ctx, 0xb5, 0x08, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xbc, 0x0f, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xb8, 0x03, 0x06, 0x00, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xbd, 0x01, 0x90, 0x14, 0x14);
+ innolux_panel_init_cmd_multi(&ctx, 0x6f, 0x01);
+ innolux_panel_init_cmd_multi(&ctx, 0xc0, 0x03);
+ innolux_panel_init_cmd_multi(&ctx, 0x6f, 0x02);
+ innolux_panel_init_cmd_multi(&ctx, 0xc1, 0x0d);
+ innolux_panel_init_cmd_multi(&ctx, 0xd9, 0x01, 0x09, 0x70);
+ innolux_panel_init_cmd_multi(&ctx, 0xc5, 0x12, 0x21, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xbb, 0x93, 0x93);
+
+ innolux_panel_switch_page(&ctx, 0x01);
+ innolux_panel_init_cmd_multi(&ctx, 0xb3, 0x3c, 0x3c);
+ innolux_panel_init_cmd_multi(&ctx, 0xb4, 0x0f, 0x0f);
+ innolux_panel_init_cmd_multi(&ctx, 0xb9, 0x45, 0x45);
+ innolux_panel_init_cmd_multi(&ctx, 0xba, 0x14, 0x14);
+ innolux_panel_init_cmd_multi(&ctx, 0xca, 0x02);
+ innolux_panel_init_cmd_multi(&ctx, 0xce, 0x04);
+ innolux_panel_init_cmd_multi(&ctx, 0xc3, 0x9b, 0x9b);
+ innolux_panel_init_cmd_multi(&ctx, 0xd8, 0xc0, 0x03);
+ innolux_panel_init_cmd_multi(&ctx, 0xbc, 0x82, 0x01);
+ innolux_panel_init_cmd_multi(&ctx, 0xbd, 0x9e, 0x01);
+
+ innolux_panel_switch_page(&ctx, 0x02);
+ innolux_panel_init_cmd_multi(&ctx, 0xb0, 0x82);
+ innolux_panel_init_cmd_multi(&ctx, 0xd1, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x82, 0x00, 0xa5,
+ 0x00, 0xc1, 0x00, 0xea, 0x01, 0x0d, 0x01, 0x40);
+ innolux_panel_init_cmd_multi(&ctx, 0xd2, 0x01, 0x6a, 0x01, 0xa8, 0x01, 0xdc, 0x02, 0x29,
+ 0x02, 0x67, 0x02, 0x68, 0x02, 0xa8, 0x02, 0xf0);
+ innolux_panel_init_cmd_multi(&ctx, 0xd3, 0x03, 0x19, 0x03, 0x49, 0x03, 0x67, 0x03, 0x8c,
+ 0x03, 0xa6, 0x03, 0xc7, 0x03, 0xde, 0x03, 0xec);
+ innolux_panel_init_cmd_multi(&ctx, 0xd4, 0x03, 0xff, 0x03, 0xff);
+ innolux_panel_init_cmd_multi(&ctx, 0xe0, 0x00, 0x00, 0x00, 0x86, 0x00, 0xc5, 0x00, 0xe5,
+ 0x00, 0xff, 0x01, 0x26, 0x01, 0x45, 0x01, 0x75);
+ innolux_panel_init_cmd_multi(&ctx, 0xe1, 0x01, 0x9c, 0x01, 0xd5, 0x02, 0x05, 0x02, 0x4d,
+ 0x02, 0x86, 0x02, 0x87, 0x02, 0xc3, 0x03, 0x03);
+ innolux_panel_init_cmd_multi(&ctx, 0xe2, 0x03, 0x2a, 0x03, 0x56, 0x03, 0x72, 0x03, 0x94,
+ 0x03, 0xac, 0x03, 0xcb, 0x03, 0xe0, 0x03, 0xed);
+ innolux_panel_init_cmd_multi(&ctx, 0xe3, 0x03, 0xff, 0x03, 0xff);
+
+ innolux_panel_switch_page(&ctx, 0x03);
+ innolux_panel_init_cmd_multi(&ctx, 0xb0, 0x00, 0x00, 0x00, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xb1, 0x00, 0x00, 0x00, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xb2, 0x00, 0x00, 0x06, 0x04, 0x01, 0x40, 0x85);
+ innolux_panel_init_cmd_multi(&ctx, 0xb3, 0x10, 0x07, 0xfc, 0x04, 0x01, 0x40, 0x80);
+ innolux_panel_init_cmd_multi(&ctx, 0xb6, 0xf0, 0x08, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01,
+ 0x40, 0x80);
+ innolux_panel_init_cmd_multi(&ctx, 0xba, 0xc5, 0x07, 0x00, 0x04, 0x11, 0x25, 0x8c);
+ innolux_panel_init_cmd_multi(&ctx, 0xbb, 0xc5, 0x07, 0x00, 0x03, 0x11, 0x25, 0x8c);
+ innolux_panel_init_cmd_multi(&ctx, 0xc0, 0x00, 0x3c, 0x00, 0x00, 0x00, 0x80, 0x80);
+ innolux_panel_init_cmd_multi(&ctx, 0xc1, 0x00, 0x3c, 0x00, 0x00, 0x00, 0x80, 0x80);
+ innolux_panel_init_cmd_multi(&ctx, 0xc4, 0x00, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xef, 0x41);
+
+ innolux_panel_switch_page(&ctx, 0x04);
+ innolux_panel_init_cmd_multi(&ctx, 0xec, 0x4c);
+
+ innolux_panel_switch_page(&ctx, 0x05);
+ innolux_panel_init_cmd_multi(&ctx, 0xb0, 0x13, 0x03, 0x03, 0x01);
+ innolux_panel_init_cmd_multi(&ctx, 0xb1, 0x30, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xb2, 0x02, 0x02, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xb3, 0x82, 0x23, 0x82, 0x9d);
+ innolux_panel_init_cmd_multi(&ctx, 0xb4, 0xc5, 0x75, 0x24, 0x57);
+ innolux_panel_init_cmd_multi(&ctx, 0xb5, 0x00, 0xd4, 0x72, 0x11, 0x11, 0xab, 0x0a);
+ innolux_panel_init_cmd_multi(&ctx, 0xb6, 0x00, 0x00, 0xd5, 0x72, 0x24, 0x56);
+ innolux_panel_init_cmd_multi(&ctx, 0xb7, 0x5c, 0xdc, 0x5c, 0x5c);
+ innolux_panel_init_cmd_multi(&ctx, 0xb9, 0x0c, 0x00, 0x00, 0x01, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xc0, 0x75, 0x11, 0x11, 0x54, 0x05);
+ innolux_panel_init_cmd_multi(&ctx, 0xc6, 0x00, 0x00, 0x00, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xd0, 0x00, 0x48, 0x08, 0x00, 0x00);
+ innolux_panel_init_cmd_multi(&ctx, 0xd1, 0x00, 0x48, 0x09, 0x00, 0x00);
+
+ innolux_panel_switch_page(&ctx, 0x06);
+ innolux_panel_init_cmd_multi(&ctx, 0xb0, 0x02, 0x32, 0x32, 0x08, 0x2f);
+ innolux_panel_init_cmd_multi(&ctx, 0xb1, 0x2e, 0x15, 0x14, 0x13, 0x12);
+ innolux_panel_init_cmd_multi(&ctx, 0xb2, 0x11, 0x10, 0x00, 0x3d, 0x3d);
+ innolux_panel_init_cmd_multi(&ctx, 0xb3, 0x3d, 0x3d, 0x3d, 0x3d, 0x3d);
+ innolux_panel_init_cmd_multi(&ctx, 0xb4, 0x3d, 0x32);
+ innolux_panel_init_cmd_multi(&ctx, 0xb5, 0x03, 0x32, 0x32, 0x09, 0x2f);
+ innolux_panel_init_cmd_multi(&ctx, 0xb6, 0x2e, 0x1b, 0x1a, 0x19, 0x18);
+ innolux_panel_init_cmd_multi(&ctx, 0xb7, 0x17, 0x16, 0x01, 0x3d, 0x3d);
+ innolux_panel_init_cmd_multi(&ctx, 0xb8, 0x3d, 0x3d, 0x3d, 0x3d, 0x3d);
+ innolux_panel_init_cmd_multi(&ctx, 0xb9, 0x3d, 0x32);
+ innolux_panel_init_cmd_multi(&ctx, 0xc0, 0x01, 0x32, 0x32, 0x09, 0x2f);
+ innolux_panel_init_cmd_multi(&ctx, 0xc1, 0x2e, 0x1a, 0x1b, 0x16, 0x17);
+ innolux_panel_init_cmd_multi(&ctx, 0xc2, 0x18, 0x19, 0x03, 0x3d, 0x3d);
+ innolux_panel_init_cmd_multi(&ctx, 0xc3, 0x3d, 0x3d, 0x3d, 0x3d, 0x3d);
+ innolux_panel_init_cmd_multi(&ctx, 0xc4, 0x3d, 0x32);
+ innolux_panel_init_cmd_multi(&ctx, 0xc5, 0x00, 0x32, 0x32, 0x08, 0x2f);
+ innolux_panel_init_cmd_multi(&ctx, 0xc6, 0x2e, 0x14, 0x15, 0x10, 0x11);
+ innolux_panel_init_cmd_multi(&ctx, 0xc7, 0x12, 0x13, 0x02, 0x3d, 0x3d);
+ innolux_panel_init_cmd_multi(&ctx, 0xc8, 0x3d, 0x3d, 0x3d, 0x3d, 0x3d);
+ innolux_panel_init_cmd_multi(&ctx, 0xc9, 0x3d, 0x32);
+
+ return ctx.accum_err;
+}
+
+static const struct panel_desc innolux_p097pfg_panel_desc = {
+ .mode = &innolux_p097pfg_mode,
+ .bpc = 8,
+ .size = {
+ .width = 147,
+ .height = 196,
+ },
+ .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+ MIPI_DSI_MODE_LPM,
+ .format = MIPI_DSI_FMT_RGB888,
+ .init = innolux_p097pfg_init,
+ .lanes = 4,
+ .supply_names = innolux_p097pfg_supply_names,
+ .num_supplies = ARRAY_SIZE(innolux_p097pfg_supply_names),
+ .sleep_mode_delay = 100, /* T15 */
+};
+
+static int innolux_panel_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct innolux_panel *innolux = to_innolux_panel(panel);
+ const struct drm_display_mode *m = innolux->desc->mode;
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(connector->dev, m);
+ if (!mode) {
+ dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
+ m->hdisplay, m->vdisplay, drm_mode_vrefresh(m));
+ return -ENOMEM;
+ }
+
+ drm_mode_set_name(mode);
+
+ drm_mode_probed_add(connector, mode);
+
+ connector->display_info.width_mm = innolux->desc->size.width;
+ connector->display_info.height_mm = innolux->desc->size.height;
+ connector->display_info.bpc = innolux->desc->bpc;
+
+ return 1;
+}
+
+static const struct drm_panel_funcs innolux_panel_funcs = {
+ .unprepare = innolux_panel_unprepare,
+ .prepare = innolux_panel_prepare,
+ .get_modes = innolux_panel_get_modes,
+};
+
+static const struct of_device_id innolux_of_match[] = {
+ { .compatible = "innolux,p079zca",
+ .data = &innolux_p079zca_panel_desc
+ },
+ { .compatible = "innolux,p097pfg",
+ .data = &innolux_p097pfg_panel_desc
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(of, innolux_of_match);
+
+static int innolux_panel_add(struct mipi_dsi_device *dsi,
+ const struct panel_desc *desc)
+{
+ struct innolux_panel *innolux;
+ struct device *dev = &dsi->dev;
+ int err, i;
+
+ innolux = devm_drm_panel_alloc(dev, struct innolux_panel, base,
+ &innolux_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ if (IS_ERR(innolux))
+ return PTR_ERR(innolux);
+
+ innolux->desc = desc;
+
+ innolux->supplies = devm_kcalloc(dev, desc->num_supplies,
+ sizeof(*innolux->supplies),
+ GFP_KERNEL);
+ if (!innolux->supplies)
+ return -ENOMEM;
+
+ for (i = 0; i < desc->num_supplies; i++)
+ innolux->supplies[i].supply = desc->supply_names[i];
+
+ err = devm_regulator_bulk_get(dev, desc->num_supplies,
+ innolux->supplies);
+ if (err < 0)
+ return err;
+
+ innolux->enable_gpio = devm_gpiod_get_optional(dev, "enable",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(innolux->enable_gpio)) {
+ err = PTR_ERR(innolux->enable_gpio);
+ dev_dbg(dev, "failed to get enable gpio: %d\n", err);
+ innolux->enable_gpio = NULL;
+ }
+
+ err = drm_panel_of_backlight(&innolux->base);
+ if (err)
+ return err;
+
+ drm_panel_add(&innolux->base);
+
+ mipi_dsi_set_drvdata(dsi, innolux);
+ innolux->link = dsi;
+
+ return 0;
+}
+
+static void innolux_panel_del(struct innolux_panel *innolux)
+{
+ drm_panel_remove(&innolux->base);
+}
+
+static int innolux_panel_probe(struct mipi_dsi_device *dsi)
+{
+ const struct panel_desc *desc;
+ struct innolux_panel *innolux;
+ int err;
+
+ desc = of_device_get_match_data(&dsi->dev);
+ dsi->mode_flags = desc->flags;
+ dsi->format = desc->format;
+ dsi->lanes = desc->lanes;
+
+ err = innolux_panel_add(dsi, desc);
+ if (err < 0)
+ return err;
+
+ err = mipi_dsi_attach(dsi);
+ if (err < 0) {
+ innolux = mipi_dsi_get_drvdata(dsi);
+ innolux_panel_del(innolux);
+ return err;
+ }
+
+ return 0;
+}
+
+static void innolux_panel_remove(struct mipi_dsi_device *dsi)
+{
+ struct innolux_panel *innolux = mipi_dsi_get_drvdata(dsi);
+ int err;
+
+
+ err = mipi_dsi_detach(dsi);
+ if (err < 0)
+ dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
+
+ innolux_panel_del(innolux);
+}
+
+static struct mipi_dsi_driver innolux_panel_driver = {
+ .driver = {
+ .name = "panel-innolux-p079zca",
+ .of_match_table = innolux_of_match,
+ },
+ .probe = innolux_panel_probe,
+ .remove = innolux_panel_remove,
+};
+module_mipi_dsi_driver(innolux_panel_driver);
+
+MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
+MODULE_AUTHOR("Lin Huang <hl@rock-chips.com>");
+MODULE_DESCRIPTION("Innolux P079ZCA panel driver");
+MODULE_LICENSE("GPL v2");
generated by cgit (git 2.34.1) at 2025-12-26 10:48:10 +0000