308 lines
8.5 KiB
Diff
308 lines
8.5 KiB
Diff
From 512a16bf06286e0ce6d7ff03c419464c298e0fe2 Mon Sep 17 00:00:00 2001
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From: Xilin Wu <wuxilin123@gmail.com>
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Date: Fri, 23 Jan 2026 09:21:13 +0800
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Subject: [PATCH 10/18] drm/panel: Add WIP panel driver for AYN Odin 2
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Signed-off-by: Xilin Wu <wuxilin123@gmail.com>
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---
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drivers/gpu/drm/panel/Kconfig | 11 +
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drivers/gpu/drm/panel/Makefile | 1 +
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.../gpu/drm/panel/panel-synaptics-td4328.c | 246 ++++++++++++++++++
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3 files changed, 258 insertions(+)
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create mode 100644 drivers/gpu/drm/panel/panel-synaptics-td4328.c
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diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
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index d8cf15b0b..d34351f27 100644
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--- a/drivers/gpu/drm/panel/Kconfig
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+++ b/drivers/gpu/drm/panel/Kconfig
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@@ -1056,6 +1056,16 @@ config DRM_PANEL_SYNAPTICS_R63353
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Say Y if you want to enable support for panels based on the
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Synaptics R63353 controller.
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+config DRM_PANEL_SYNAPTICS_TD4328
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+ tristate "Synaptics TD4328-based panels"
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+ depends on OF
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+ depends on DRM_MIPI_DSI
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+ depends on BACKLIGHT_CLASS_DEVICE
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+ select DRM_KMS_HELPER
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+ help
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+ Say Y if you want to enable support for panels based on the
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+ Synaptics TD4328 controller.
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+
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config DRM_PANEL_TDO_TL070WSH30
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tristate "TDO TL070WSH30 DSI panel"
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depends on OF
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@@ -1167,4 +1177,5 @@ config DRM_PANEL_XINPENG_XPP055C272
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Say Y here if you want to enable support for the Xinpeng
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XPP055C272 controller for 720x1280 LCD panels with MIPI/RGB/SPI
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system interfaces.
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+
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endmenu
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diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
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index 171843de9..d8e9d6ac1 100644
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--- a/drivers/gpu/drm/panel/Makefile
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+++ b/drivers/gpu/drm/panel/Makefile
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@@ -101,6 +101,7 @@ obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o
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obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
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obj-$(CONFIG_DRM_PANEL_SUMMIT) += panel-summit.o
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obj-$(CONFIG_DRM_PANEL_SYNAPTICS_R63353) += panel-synaptics-r63353.o
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+obj-$(CONFIG_DRM_PANEL_SYNAPTICS_TD4328) += panel-synaptics-td4328.o
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obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
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obj-$(CONFIG_DRM_PANEL_SONY_TD4353_JDI) += panel-sony-td4353-jdi.o
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obj-$(CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521) += panel-sony-tulip-truly-nt35521.o
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diff --git a/drivers/gpu/drm/panel/panel-synaptics-td4328.c b/drivers/gpu/drm/panel/panel-synaptics-td4328.c
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new file mode 100644
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index 000000000..0fb0ddd93
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--- /dev/null
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+++ b/drivers/gpu/drm/panel/panel-synaptics-td4328.c
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@@ -0,0 +1,246 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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+/*
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+ * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree.
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+ * Copyright (c) 2024 Xilin Wu <wuxilin123@gmail.com>
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+ * Copyright (c) 2024 Junhao Xie <bigfoot@classfun.cn>
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+ */
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+
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+#include <linux/delay.h>
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+#include <linux/gpio/consumer.h>
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+#include <linux/module.h>
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+#include <linux/of.h>
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+#include <linux/regulator/consumer.h>
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+
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+#include <drm/drm_mipi_dsi.h>
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+#include <drm/drm_modes.h>
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+#include <drm/drm_panel.h>
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+#include <drm/drm_probe_helper.h>
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+
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+struct td4328 {
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+ struct drm_panel panel;
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+ struct mipi_dsi_device *dsi;
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+ struct regulator_bulk_data supplies[2];
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+ struct gpio_desc *reset_gpio;
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+};
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+
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+static inline struct td4328 *to_td4328(struct drm_panel *panel)
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+{
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+ return container_of(panel, struct td4328, panel);
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+}
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+
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+static void td4328_reset(struct td4328 *ctx)
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+{
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+ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
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+ usleep_range(10000, 11000);
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+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
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+ usleep_range(10000, 11000);
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+ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
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+ usleep_range(10000, 11000);
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+}
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+
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+static int td4328_on(struct td4328 *ctx)
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+{
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+ struct mipi_dsi_device *dsi = ctx->dsi;
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+ struct device *dev = &dsi->dev;
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+ int ret;
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+
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+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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+
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+ mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x00);
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+ mipi_dsi_dcs_write_seq(dsi, 0xb3, 0x31);
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+ mipi_dsi_dcs_write_seq(dsi, 0xd6, 0x00);
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+
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+ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
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+ if (ret < 0) {
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+ dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
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+ return ret;
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+ }
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+ msleep(70);
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+
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+ ret = mipi_dsi_dcs_set_display_on(dsi);
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+ if (ret < 0) {
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+ dev_err(dev, "Failed to set display on: %d\n", ret);
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+ return ret;
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+ }
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+
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+ return 0;
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+}
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+
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+static int td4328_off(struct td4328 *ctx)
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+{
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+ struct mipi_dsi_device *dsi = ctx->dsi;
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+ struct device *dev = &dsi->dev;
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+ int ret;
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+
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+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
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+
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+ ret = mipi_dsi_dcs_set_display_off(dsi);
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+ if (ret < 0) {
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+ dev_err(dev, "Failed to set display off: %d\n", ret);
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+ return ret;
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+ }
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+ msleep(50);
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+
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+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
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+ if (ret < 0) {
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+ dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
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+ return ret;
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+ }
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+ msleep(120);
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+
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+ return 0;
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+}
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+
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+static int td4328_prepare(struct drm_panel *panel)
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+{
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+ struct td4328 *ctx = to_td4328(panel);
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+ struct device *dev = &ctx->dsi->dev;
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+ int ret;
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+
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+ ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
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+ if (ret < 0) {
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+ dev_err(dev, "Failed to enable regulators: %d\n", ret);
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+ return ret;
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+ }
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+
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+ td4328_reset(ctx);
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+
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+ ret = td4328_on(ctx);
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+ if (ret < 0) {
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+ dev_err(dev, "Failed to initialize panel: %d\n", ret);
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+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
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+ regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
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+ return ret;
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+ }
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+
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+ return 0;
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+}
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+
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+static int td4328_unprepare(struct drm_panel *panel)
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+{
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+ struct td4328 *ctx = to_td4328(panel);
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+ struct device *dev = &ctx->dsi->dev;
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+ int ret;
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+
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+ ret = td4328_off(ctx);
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+ if (ret < 0)
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+ dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
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+
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+ regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
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+
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+ return 0;
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+}
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+
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+static const struct drm_display_mode td4328_mode = {
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+ .clock = (1080 + 93 + 1 + 47) * (1920 + 40 + 2 + 60) * 60 / 1000,
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+ .hdisplay = 1080,
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+ .hsync_start = 1080 + 93,
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+ .hsync_end = 1080 + 93 + 1,
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+ .htotal = 1080 + 93 + 1 + 47,
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+ .vdisplay = 1920,
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+ .vsync_start = 1920 + 40,
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+ .vsync_end = 1920 + 40 + 2,
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+ .vtotal = 1920 + 40 + 2 + 60,
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+ .width_mm = 75,
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+ .height_mm = 133,
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+ .type = DRM_MODE_TYPE_DRIVER,
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+};
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+
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+static int td4328_get_modes(struct drm_panel *panel,
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+ struct drm_connector *connector)
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+{
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+ return drm_connector_helper_get_modes_fixed(connector, &td4328_mode);
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+}
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+
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+static enum drm_panel_orientation td4328_get_orientation(struct drm_panel *panel)
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+{
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+ return DRM_MODE_PANEL_ORIENTATION_RIGHT_UP;
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+}
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+
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+static const struct drm_panel_funcs td4328_panel_funcs = {
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+ .prepare = td4328_prepare,
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+ .disable = td4328_unprepare,
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+ .get_modes = td4328_get_modes,
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+ .get_orientation = td4328_get_orientation,
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+};
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+
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+static int td4328_probe(struct mipi_dsi_device *dsi)
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+{
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+ struct device *dev = &dsi->dev;
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+ struct td4328 *ctx;
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+ int ret;
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+
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+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
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+ if (!ctx)
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+ return -ENOMEM;
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+
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+ ctx->supplies[0].supply = "vddio";
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+ ctx->supplies[1].supply = "vdd";
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+ ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
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+ ctx->supplies);
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+ if (ret < 0)
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+ return dev_err_probe(dev, ret, "Failed to get regulators\n");
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+
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+ ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
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+ if (IS_ERR(ctx->reset_gpio))
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+ return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
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+ "Failed to get reset-gpios\n");
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+
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+ ctx->dsi = dsi;
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+ mipi_dsi_set_drvdata(dsi, ctx);
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+
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+ dsi->lanes = 4;
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+ dsi->format = MIPI_DSI_FMT_RGB888;
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+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
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+ MIPI_DSI_CLOCK_NON_CONTINUOUS;
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+
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+ drm_panel_init(&ctx->panel, dev, &td4328_panel_funcs,
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+ DRM_MODE_CONNECTOR_DSI);
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+ ctx->panel.prepare_prev_first = true;
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+
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+ ret = drm_panel_of_backlight(&ctx->panel);
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+ if (ret)
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+ return dev_err_probe(dev, ret, "Failed to get backlight\n");
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+
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+ drm_panel_add(&ctx->panel);
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+
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+ ret = mipi_dsi_attach(dsi);
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+ if (ret < 0) {
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+ dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
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+ drm_panel_remove(&ctx->panel);
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+ return ret;
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+ }
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+
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+ return 0;
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+}
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+
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+static void td4328_remove(struct mipi_dsi_device *dsi)
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+{
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+ struct td4328 *ctx = mipi_dsi_get_drvdata(dsi);
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+ int ret;
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+
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+ ret = mipi_dsi_detach(dsi);
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+ if (ret < 0)
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+ dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
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+
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+ drm_panel_remove(&ctx->panel);
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+}
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+
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+static const struct of_device_id td4328_of_match[] = {
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+ { .compatible = "syna,td4328" },
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+ { /* sentinel */ }
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+};
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+MODULE_DEVICE_TABLE(of, td4328_of_match);
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+
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+static struct mipi_dsi_driver td4328_driver = {
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+ .probe = td4328_probe,
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+ .remove = td4328_remove,
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+ .driver = {
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+ .name = "panel-td4328",
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+ .of_match_table = td4328_of_match,
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+ },
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+};
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+module_mipi_dsi_driver(td4328_driver);
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+
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+MODULE_DESCRIPTION("DRM driver for td4328-equipped DSI panels");
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+MODULE_LICENSE("GPL");
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--
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2.43.0
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