On 16/05/2023 23:20, Jessica Zhang wrote:
Add support for the 1080x2340 Visionox R66451 AMOLED DSI panel that comes with the Qualcomm HDK8350 display expansion pack. The panel enables display compression (DSC v1.2) by default. Signed-off-by: Jessica Zhang <quic_jesszhan@xxxxxxxxxxx> --- drivers/gpu/drm/panel/Kconfig | 8 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-visionox-r66451.c | 395 ++++++++++++++++++++++++++ 3 files changed, 404 insertions(+) diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 29cf5fa39ff2..9c2c36dbddf3 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -766,6 +766,14 @@ config DRM_PANEL_VISIONOX_VTDR6130 Say Y here if you want to enable support for Visionox VTDR6130 1080x2400 AMOLED DSI panel.+config DRM_PANEL_VISIONOX_R66451+ tristate "Visionox R66451" + depends on OF + depends on DRM_MIPI_DSI + help + Say Y here if you want to enable support for Visionox + R66451 1080x2340 AMOLED DSI panel. + config DRM_PANEL_WIDECHIPS_WS2401 tristate "Widechips WS2401 DPI panel driver" depends on SPI && GPIOLIB diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index b3e8ba29edd3..e043a92ee676 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -78,5 +78,6 @@ obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o obj-$(CONFIG_DRM_PANEL_VISIONOX_VTDR6130) += panel-visionox-vtdr6130.o +obj-$(CONFIG_DRM_PANEL_VISIONOX_R66451) += panel-visionox-r66451.o obj-$(CONFIG_DRM_PANEL_WIDECHIPS_WS2401) += panel-widechips-ws2401.o obj-$(CONFIG_DRM_PANEL_XINPENG_XPP055C272) += panel-xinpeng-xpp055c272.o diff --git a/drivers/gpu/drm/panel/panel-visionox-r66451.c b/drivers/gpu/drm/panel/panel-visionox-r66451.c new file mode 100644 index 000000000000..e3648ead3e84 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-visionox-r66451.c @@ -0,0 +1,395 @@ +//SPDX-License-Identifier: GPL-2.0-only +//Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. + +#include <linux/backlight.h> +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/regulator/consumer.h> + +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_modes.h> +#include <drm/drm_panel.h> +#include <drm/display/drm_dsc.h> +#include <drm/display/drm_dsc_helper.h> + +#include <video/mipi_display.h> + +struct visionox_r66451 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct gpio_desc *reset_gpio; + struct regulator_bulk_data supplies[2]; + bool prepared, enabled; +}; + +static inline struct visionox_r66451 *to_visionox_r66451(struct drm_panel *panel) +{ + return container_of(panel, struct visionox_r66451, panel); +} + +static void visionox_r66451_reset(struct visionox_r66451 *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 10100); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + usleep_range(10000, 10100); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 10100); +} + +static int visionox_r66451_on(struct visionox_r66451 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + int ret; + + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x00); + mipi_dsi_dcs_write_seq(dsi, 0xc2, + 0x09, 0x24, 0x0c, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, + 0x09, 0x3c); + mipi_dsi_dcs_write_seq(dsi, 0xd7, + 0x00, 0xb9, 0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a, + 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19, + 0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x80); + mipi_dsi_dcs_write_seq(dsi, 0xde, + 0x40, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, + 0x10, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x02, 0x00, 0x00); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x04); + mipi_dsi_dcs_write_seq(dsi, 0xe8, 0x00, 0x02); + mipi_dsi_dcs_write_seq(dsi, 0xe4, 0x00, 0x08); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x00); + mipi_dsi_dcs_write_seq(dsi, 0xc4, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x32); + mipi_dsi_dcs_write_seq(dsi, 0xcf, + 0x64, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, + 0x00, 0x0b, 0x77, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x02, 0x02, 0x02, 0x02, 0x02, 0x03); + mipi_dsi_dcs_write_seq(dsi, 0xd3, + 0x45, 0x00, 0x00, 0x01, 0x13, 0x15, 0x00, 0x15, 0x07, + 0x0f, 0x77, 0x77, 0x77, 0x37, 0xb2, 0x11, 0x00, 0xa0, + 0x3c, 0x9c); + mipi_dsi_dcs_write_seq(dsi, 0xd7, + 0x00, 0xb9, 0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a, + 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19, + 0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a); + mipi_dsi_dcs_write_seq(dsi, 0xd8, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a, + 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x0a, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, + 0x00, 0x32, 0x00, 0x0a, 0x00, 0x22); + mipi_dsi_dcs_write_seq(dsi, 0xdf, + 0x50, 0x42, 0x58, 0x81, 0x2d, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x6b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x01, 0x0f, 0xff, 0xd4, 0x0e, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x0f, 0x53, 0xf1, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + mipi_dsi_dcs_write_seq(dsi, 0xf7, 0x01); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x80); + mipi_dsi_dcs_write_seq(dsi, 0xe4, 0x34, 0xb4, 0x00, 0x00, 0x00, 0x39, 0x04, 0x09, 0x34); + mipi_dsi_dcs_write_seq(dsi, 0xe6, 0x00); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x04); + mipi_dsi_dcs_write_seq(dsi, 0xdf, 0x50, 0x40); + mipi_dsi_dcs_write_seq(dsi, 0xf3, 0x50, 0x00, 0x00, 0x00, 0x00); + mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x11); + mipi_dsi_dcs_write_seq(dsi, 0xf3, 0x01, 0x00, 0x00, 0x00, 0x01); + mipi_dsi_dcs_write_seq(dsi, 0xf4, 0x00, 0x02); + mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x19); + mipi_dsi_dcs_write_seq(dsi, 0xdf, 0x50, 0x42); + mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_COLUMN_ADDRESS, 0x00, 0x00, 0x04, 0x37);
Please use mipi_dsi_dcs_set_column_address(dsi, 0, 1080 - 1);
+ mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_PAGE_ADDRESS, 0x00, 0x00, 0x09, 0x23);
mipi_dsi_dcs_set_page_address(dsi, 0, 2340 - 1);
+
+ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
+ return ret;
+ }
+ msleep(120);
+
+ ret = mipi_dsi_dcs_set_display_on(dsi);
Should the mipi_dsi_dcs_set_display_on() (and maybe exit sleep mode) be a a part of _enable()? Correspondingly _off should IMO be a part of _disable callback().
+ if (ret < 0) {
+ dev_err(dev, "Failed on set display on: %d\n", ret);
+ return ret;
+ }
+ msleep(20);
Do we need to add here the following line? dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ return 0;
+}
+
+static int visionox_r66451_off(struct visionox_r66451 *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_set_display_off(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set display off: %d\n", ret);
+ return ret;
+ }
+ msleep(20);
+
+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
+ return ret;
+ }
+ msleep(120);
+
+ return 0;
+}
+
+static int visionox_r66451_prepare(struct drm_panel *panel)
+{
+ struct visionox_r66451 *ctx = to_visionox_r66451(panel);
+ struct device *dev = &ctx->dsi->dev;
+ int ret;
+
+ if (ctx->prepared)
+ return 0;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies),
+ ctx->supplies);
+ if (ret < 0)
+ return ret;
+
+ visionox_r66451_reset(ctx);
+
+ ret = visionox_r66451_on(ctx);
+ if (ret < 0) {
+ dev_err(dev, "Failed to initialize panel: %d\n", ret);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+ return ret;
+ }
+
+ ctx->prepared = true;
+ return 0;
+}
+
+static int visionox_r66451_unprepare(struct drm_panel *panel)
+{
+ struct visionox_r66451 *ctx = to_visionox_r66451(panel);
+ struct device *dev = &ctx->dsi->dev;
+ int ret;
+
+ if (!ctx->prepared)
+ return 0;
+
+ ret = visionox_r66451_off(ctx);
+ if (ret < 0)
+ dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
+
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+
+ ctx->prepared = false;
+ return 0;
+}
+
+static const struct drm_display_mode visionox_r66451_mode = {
+ .clock = (1080 + 95 + 1 + 40) * (2340 + 25 + 1 + 4) * 120 / 1000,
+ .hdisplay = 1080,
+ .hsync_start = 1080 + 95,
+ .hsync_end = 1080 + 95 + 1,
+ .htotal = 1080 + 95 + 1 + 40,
+ .vdisplay = 2340,
+ .vsync_start = 2340 + 25,
+ .vsync_end = 2340 + 25 + 1,
+ .vtotal = 2340 + 25 + 1 + 4,
+ .width_mm = 0,
+ .height_mm = 0,
Please provide real values here.
+};
+
+static int visionox_r66451_enable(struct drm_panel *panel)
+{
+ struct visionox_r66451 *ctx = to_visionox_r66451(panel);
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct drm_dsc_picture_parameter_set pps;
+ int ret;
+
+ if (ctx->enabled)
+ return 0;
+
+ if (!dsi->dsc) {
+ dev_err(&dsi->dev, "DSC not attached to DSI\n");
+ return -ENODEV;
+ }
+
+ drm_dsc_pps_payload_pack(&pps, dsi->dsc);
+ ret = mipi_dsi_picture_parameter_set(dsi, &pps);
+
+ ctx->enabled = true;
+
+ return 0;
+}
+
+static int visionox_r66451_disable(struct drm_panel *panel)
+{
+ struct visionox_r66451 *ctx = to_visionox_r66451(panel);
+
+ ctx->enabled = false;
+
+ return 0;
+}
+
+static int visionox_r66451_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(connector->dev, &visionox_r66451_mode);
+ if (!mode)
+ return -ENOMEM;
+
+ drm_mode_set_name(mode);
+
+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+ connector->display_info.width_mm = mode->width_mm;
+ connector->display_info.height_mm = mode->height_mm;
+ drm_mode_probed_add(connector, mode);
Can we use drm_connector_helper_get_modes_fixed() instead?
+
+ return 1;
+}
+
+static const struct drm_panel_funcs visionox_r66451_funcs = {
+ .prepare = visionox_r66451_prepare,
+ .unprepare = visionox_r66451_unprepare,
+ .get_modes = visionox_r66451_get_modes,
+ .enable = visionox_r66451_enable,
+ .disable = visionox_r66451_disable,
+};
+
+static int visionox_r66451_bl_update_status(struct backlight_device *bl)
+{
+ struct mipi_dsi_device *dsi = bl_get_data(bl);
+ u16 brightness = backlight_get_brightness(bl);
+
+ return mipi_dsi_dcs_set_display_brightness(dsi, cpu_to_le16(brightness));
mipi_dsi_dcs_set_display_brightness() already converts the brightness, so you don't need cpu_to_le16 here.
+}
+
+static const struct backlight_ops visionox_r66451_bl_ops = {
+ .update_status = visionox_r66451_bl_update_status,
+};
+
+static struct backlight_device *
+visionox_r66451_create_backlight(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ const struct backlight_properties props = {
+ .type = BACKLIGHT_RAW,
+ .brightness = 255,
+ .max_brightness = 4095,
+ };
+
+ return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
+ &visionox_r66451_bl_ops, &props);
+}
+
+static int visionox_r66451_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct visionox_r66451 *ctx;
+ struct drm_dsc_config *dsc;
+ int ret = 0;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ dsc = devm_kzalloc(dev, sizeof(*dsc), GFP_KERNEL);
+ if (!dsc)
+ return -ENOMEM;
+
+ /* Set DSC params */
+ dsc->dsc_version_major = 0x1;
+ dsc->dsc_version_minor = 0x2;
+
+ dsc->slice_height = 20;
+ dsc->slice_width = 540;
+ dsc->slice_count = 2;
+ dsc->bits_per_component = 8;
+ dsc->bits_per_pixel = 0x8 << 4;
+ dsc->block_pred_enable = true;
+
+ dsi->dsc = dsc;
+
+ ctx->supplies[0].supply = "vddio";
+ ctx->supplies[1].supply = "vdd";
+
+ ret = devm_regulator_bulk_get(&dsi->dev, ARRAY_SIZE(ctx->supplies),
+ ctx->supplies);
+
+ if (ret < 0)
+ return ret;
+
+ ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(ctx->reset_gpio))
+ return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), "Failed to get reset-gpios\n");
+
+ ctx->dsi = dsi;
+ mipi_dsi_set_drvdata(dsi, ctx);
+
+ dsi->lanes = 4;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+ drm_panel_init(&ctx->panel, dev, &visionox_r66451_funcs, DRM_MODE_CONNECTOR_DSI);
+ ctx->panel.backlight = visionox_r66451_create_backlight(dsi);
+ if (IS_ERR(ctx->panel.backlight))
+ return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
+ "Failed to create backlight\n");
+
+ drm_panel_add(&ctx->panel);
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
+ drm_panel_remove(&ctx->panel);
+ }
+
+ return ret;
+}
+
+static void visionox_r66451_remove(struct mipi_dsi_device *dsi)
+{
+ struct visionox_r66451 *ctx = mipi_dsi_get_drvdata(dsi);
+ int ret;
+
+ ret = mipi_dsi_detach(dsi);
+ if (ret < 0)
+ dev_err(&dsi->dev, "Failed to detach DSI host: %d\n", ret);
+
+ drm_panel_remove(&ctx->panel);
+}
+
+static const struct of_device_id visionox_r66451_of_match[] = {
+ {.compatible = "visionox,r66451"},
+ { /*sentinel*/ }
+};
+MODULE_DEVICE_TABLE(of, visionox_r66451_of_match);
+
+static struct mipi_dsi_driver visionox_r66451_driver = {
+ .probe = visionox_r66451_probe,
+ .remove = visionox_r66451_remove,
+ .driver = {
+ .name = "panel-visionox-r66451",
+ .of_match_table = visionox_r66451_of_match,
+ },
+};
+
+module_mipi_dsi_driver(visionox_r66451_driver);
+
+MODULE_AUTHOR("Jessica Zhang <quic_jesszhan@xxxxxxxxxxx>");
+MODULE_DESCRIPTION("Panel driver for the Visionox R66451 AMOLED DSI panel");
+MODULE_LICENSE("GPL");
-- With best wishes Dmitry
