From c1a1f1d0c9d7c23992cf44e74669b5cd9c7d9afd Mon Sep 17 00:00:00 2001 From: Philippe Simons Date: Sun, 6 Jul 2025 00:18:34 +0200 Subject: [PATCH] gpu: panel: add Pocket ACE panel driver --- drivers/gpu/drm/panel/Kconfig | 10 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-ar06-4inch.c | 235 +++++++++++++++++++++++ 3 files changed, 246 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-ar06-4inch.c diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index e059b06e0239..11c3d7106d50 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -17,6 +17,16 @@ config DRM_PANEL_ABT_Y030XX067A Y030XX067A 320x480 3.0" panel as found in the YLM RG-280M, RG-300 and RG-99 handheld gaming consoles. +config DRM_PANEL_AR06_4INCH + tristate "Ayaneo Pocket ACE panel driver" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + select DRM_DISPLAY_HELPER + help + Say Y here if you want to enable support for Ayaneo Pocket ACE + 1080x1620 60hz Panel. + config DRM_PANEL_ARM_VERSATILE tristate "ARM Versatile panel driver" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 1bb8ae46b59b..fb145bc6a8df 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_DRM_PANEL_ABT_Y030XX067A) += panel-abt-y030xx067a.o +obj-$(CONFIG_DRM_PANEL_AR06_4INCH) += panel-ar06-4inch.o obj-$(CONFIG_DRM_PANEL_ARM_VERSATILE) += panel-arm-versatile.o obj-$(CONFIG_DRM_PANEL_ASUS_Z00T_TM5P5_NT35596) += panel-asus-z00t-tm5p5-n35596.o obj-$(CONFIG_DRM_PANEL_AUO_A030JTN01) += panel-auo-a030jtn01.o diff --git a/drivers/gpu/drm/panel/panel-ar06-4inch.c b/drivers/gpu/drm/panel/panel-ar06-4inch.c new file mode 100644 index 000000000000..fe76ac9fab2c --- /dev/null +++ b/drivers/gpu/drm/panel/panel-ar06-4inch.c @@ -0,0 +1,235 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright (c) 2025 FIXME +// Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree: +// Copyright (c) 2013, The Linux Foundation. All rights reserved. (FIXME) + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +struct ar06_4inch { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct gpio_desc *reset_gpio; + struct regulator_bulk_data *supplies; + enum drm_panel_orientation orientation; +}; + +static const struct regulator_bulk_data panel_supplies[] = { + { .supply = "avdd" }, + { .supply = "vci" }, + { .supply = "vddio" }, +}; + +static inline struct ar06_4inch *to_ar06_4inch(struct drm_panel *panel) +{ + return container_of(panel, struct ar06_4inch, panel); +} + +static void ar06_4inch_reset(struct ar06_4inch *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 11000); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + usleep_range(10000, 11000); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 11000); +} + +static int ar06_4inch_on(struct ar06_4inch *ctx) +{ + struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi }; + + ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 200); + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 120); + + return dsi_ctx.accum_err; +} + +static int ar06_4inch_off(struct ar06_4inch *ctx) +{ + struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi }; + + ctx->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; + + mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 120); + mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); + mipi_dsi_usleep_range(&dsi_ctx, 10000, 11000); + + return dsi_ctx.accum_err; +} + +static int ar06_4inch_prepare(struct drm_panel *panel) +{ + struct ar06_4inch *ctx = to_ar06_4inch(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(panel_supplies), ctx->supplies); + if (ret < 0) { + dev_err(panel->dev, "failed to enable regulators: %d\n", ret); + return ret; + } + msleep(20); + + ar06_4inch_reset(ctx); + + ret = ar06_4inch_on(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + regulator_bulk_disable(ARRAY_SIZE(panel_supplies), ctx->supplies); + return ret; + } + + return 0; +} + +static int ar06_4inch_unprepare(struct drm_panel *panel) +{ + struct ar06_4inch *ctx = to_ar06_4inch(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + ret = ar06_4inch_off(ctx); + if (ret < 0) + dev_err(dev, "Failed to un-initialize panel: %d\n", ret); + + regulator_bulk_disable(ARRAY_SIZE(panel_supplies), ctx->supplies); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + + return 0; +} + +static const struct drm_display_mode ar06_4inch_mode = { + .clock = (1080 + 152 + 20 + 180) * (1620 + 18 + 2 + 5) * 60 / 1000, + .hdisplay = 1080, + .hsync_start = 1080 + 152, + .hsync_end = 1080 + 152 + 20, + .htotal = 1080 + 152 + 20 + 180, + .vdisplay = 1620, + .vsync_start = 1620 + 18, + .vsync_end = 1620 + 18 + 2, + .vtotal = 1620 + 18 + 2 + 5, + .width_mm = 63, + .height_mm = 95, + .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, +}; + +static int ar06_4inch_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + return drm_connector_helper_get_modes_fixed(connector, &ar06_4inch_mode); +} + +static enum drm_panel_orientation ar06_4inch_get_orientation(struct drm_panel *panel) +{ + struct ar06_4inch *ctx = to_ar06_4inch(panel); + + return ctx->orientation; +} + +static const struct drm_panel_funcs ar06_4inch_panel_funcs = { + .prepare = ar06_4inch_prepare, + .unprepare = ar06_4inch_unprepare, + .get_modes = ar06_4inch_get_modes, + .get_orientation = ar06_4inch_get_orientation, +}; + +static int ar06_4inch_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct ar06_4inch *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ret = devm_regulator_bulk_get_const(dev, ARRAY_SIZE(panel_supplies), + panel_supplies, &ctx->supplies); + if (ret < 0){ + return dev_err_probe(dev, ret, "Failed to get regulators\n"); + } + + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + 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_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | + MIPI_DSI_CLOCK_NON_CONTINUOUS; + + /* Orientation */ + ret = of_drm_get_panel_orientation(dev->of_node, &ctx->orientation); + if (ret < 0) { + dev_err(dev, "failed to get orientation %d\n", ret); + return ret; + } + + drm_panel_init(&ctx->panel, dev, &ar06_4inch_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + ctx->panel.prepare_prev_first = true; + + ret = drm_panel_of_backlight(&ctx->panel); + if (ret) + return dev_err_probe(dev, ret, "Failed to get backlight\n"); + + drm_panel_add(&ctx->panel); + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + drm_panel_remove(&ctx->panel); + return dev_err_probe(dev, ret, "Failed to attach to DSI host\n"); + } + + return 0; +} + +static void ar06_4inch_remove(struct mipi_dsi_device *dsi) +{ + struct ar06_4inch *ctx = mipi_dsi_get_drvdata(dsi); + int ret; + + ret = mipi_dsi_detach(dsi); + if (ret < 0) + dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret); + + drm_panel_remove(&ctx->panel); +} + +static const struct of_device_id ar06_4inch_of_match[] = { + { .compatible = "ayaneo,pocket-ace-panel" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ar06_4inch_of_match); + +static struct mipi_dsi_driver ar06_4inch_driver = { + .probe = ar06_4inch_probe, + .remove = ar06_4inch_remove, + .driver = { + .name = "panel-ar06-4inch", + .of_match_table = ar06_4inch_of_match, + }, +}; +module_mipi_dsi_driver(ar06_4inch_driver); + +MODULE_AUTHOR("linux-mdss-dsi-panel-driver-generator "); // FIXME +MODULE_DESCRIPTION("DRM driver for ar06 4inch video mode dsi panel"); +MODULE_LICENSE("GPL"); -- 2.50.0