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drm/panel: Add driver for EDO RM69380 OLED panel
Add support for the 2560x1600@90Hz OLED panel by EDO bundled with a Raydium RM69380 controller, as found on the Lenovo Xiaoxin Pad Pro 2021. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: David Wronek <david@mainlining.org> Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org> Acked-by: Jessica Zhang <quic_jesszhan@quicinc.com> Link: https://lore.kernel.org/r/20240417-raydium-rm69380-driver-v4-2-e9c2337d0049@mainlining.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240417-raydium-rm69380-driver-v4-2-e9c2337d0049@mainlining.org
This commit is contained in:
David Wronek
Neil Armstrong
parent
4f888782d3
commit
9a314ea512
@ -553,6 +553,18 @@ config DRM_PANEL_RAYDIUM_RM692E5
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Say Y here if you want to enable support for Raydium RM692E5-based
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display panels, such as the one found in the Fairphone 5 smartphone.
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config DRM_PANEL_RAYDIUM_RM69380
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tristate "Raydium RM69380-based DSI panel"
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depends on OF && GPIOLIB
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depends on DRM_MIPI_DSI
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depends on BACKLIGHT_CLASS_DEVICE
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help
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Say Y here if you want to enable support for Raydium RM69380-based
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display panels.
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This panel controller can be found in the Lenovo Xiaoxin Pad Pro 2021
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in combination with an EDO OLED panel.
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config DRM_PANEL_RONBO_RB070D30
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tristate "Ronbo Electronics RB070D30 panel"
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depends on OF
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@ -56,6 +56,7 @@ obj-$(CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN) += panel-raspberrypi-touchscreen
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obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM67191) += panel-raydium-rm67191.o
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obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
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obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM692E5) += panel-raydium-rm692e5.o
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obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69380) += panel-raydium-rm69380.o
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obj-$(CONFIG_DRM_PANEL_RONBO_RB070D30) += panel-ronbo-rb070d30.o
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obj-$(CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20) += panel-samsung-atna33xc20.o
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obj-$(CONFIG_DRM_PANEL_SAMSUNG_DB7430) += panel-samsung-db7430.o
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344
drivers/gpu/drm/panel/panel-raydium-rm69380.c
Normal file
344
drivers/gpu/drm/panel/panel-raydium-rm69380.c
Normal file
@ -0,0 +1,344 @@
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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 David Wronek <david@mainlining.org>
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*/
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#include <linux/backlight.h>
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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/of_device.h>
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#include <linux/of_graph.h>
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#include <linux/regulator/consumer.h>
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#include <video/mipi_display.h>
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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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struct rm69380_panel {
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struct drm_panel panel;
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struct mipi_dsi_device *dsi[2];
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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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static inline
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struct rm69380_panel *to_rm69380_panel(struct drm_panel *panel)
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{
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return container_of(panel, struct rm69380_panel, panel);
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}
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static void rm69380_reset(struct rm69380_panel *ctx)
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{
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gpiod_set_value_cansleep(ctx->reset_gpio, 0);
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usleep_range(15000, 16000);
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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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msleep(30);
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}
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static int rm69380_on(struct rm69380_panel *ctx)
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{
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struct mipi_dsi_device *dsi = ctx->dsi[0];
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struct device *dev = &dsi->dev;
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int ret;
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dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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if (ctx->dsi[1])
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ctx->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM;
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mipi_dsi_dcs_write_seq(dsi, 0xfe, 0xd4);
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mipi_dsi_dcs_write_seq(dsi, 0x00, 0x80);
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mipi_dsi_dcs_write_seq(dsi, 0xfe, 0xd0);
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mipi_dsi_dcs_write_seq(dsi, 0x48, 0x00);
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mipi_dsi_dcs_write_seq(dsi, 0xfe, 0x26);
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mipi_dsi_dcs_write_seq(dsi, 0x75, 0x3f);
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mipi_dsi_dcs_write_seq(dsi, 0x1d, 0x1a);
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mipi_dsi_dcs_write_seq(dsi, 0xfe, 0x00);
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mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x28);
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mipi_dsi_dcs_write_seq(dsi, 0xc2, 0x08);
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ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
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if (ret < 0) {
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dev_err(dev, "Failed to set tear on: %d\n", ret);
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return ret;
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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(20);
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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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msleep(36);
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return 0;
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}
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static int rm69380_off(struct rm69380_panel *ctx)
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{
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struct mipi_dsi_device *dsi = ctx->dsi[0];
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struct device *dev = &dsi->dev;
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int ret;
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dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
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if (ctx->dsi[1])
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ctx->dsi[1]->mode_flags &= ~MIPI_DSI_MODE_LPM;
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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(35);
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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(20);
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return 0;
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}
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static int rm69380_prepare(struct drm_panel *panel)
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{
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struct rm69380_panel *ctx = to_rm69380_panel(panel);
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struct device *dev = &ctx->dsi[0]->dev;
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int ret;
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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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rm69380_reset(ctx);
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ret = rm69380_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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return 0;
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}
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static int rm69380_unprepare(struct drm_panel *panel)
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{
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struct rm69380_panel *ctx = to_rm69380_panel(panel);
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struct device *dev = &ctx->dsi[0]->dev;
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int ret;
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ret = rm69380_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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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 0;
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}
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static const struct drm_display_mode rm69380_mode = {
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.clock = (2560 + 32 + 12 + 38) * (1600 + 20 + 4 + 8) * 90 / 1000,
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.hdisplay = 2560,
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.hsync_start = 2560 + 32,
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.hsync_end = 2560 + 32 + 12,
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.htotal = 2560 + 32 + 12 + 38,
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.vdisplay = 1600,
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.vsync_start = 1600 + 20,
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.vsync_end = 1600 + 20 + 4,
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.vtotal = 1600 + 20 + 4 + 8,
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.width_mm = 248,
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.height_mm = 155,
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.type = DRM_MODE_TYPE_DRIVER,
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};
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static int rm69380_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, &rm69380_mode);
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}
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static const struct drm_panel_funcs rm69380_panel_funcs = {
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.prepare = rm69380_prepare,
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.unprepare = rm69380_unprepare,
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.get_modes = rm69380_get_modes,
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};
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static int rm69380_bl_update_status(struct backlight_device *bl)
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{
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struct mipi_dsi_device *dsi = bl_get_data(bl);
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u16 brightness = backlight_get_brightness(bl);
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int ret;
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dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
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ret = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
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if (ret < 0)
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return ret;
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dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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return 0;
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}
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static int rm69380_bl_get_brightness(struct backlight_device *bl)
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{
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struct mipi_dsi_device *dsi = bl_get_data(bl);
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u16 brightness;
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int ret;
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dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
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ret = mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness);
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if (ret < 0)
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return ret;
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dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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return brightness;
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}
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static const struct backlight_ops rm69380_bl_ops = {
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.update_status = rm69380_bl_update_status,
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.get_brightness = rm69380_bl_get_brightness,
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};
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static struct backlight_device *
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rm69380_create_backlight(struct mipi_dsi_device *dsi)
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{
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struct device *dev = &dsi->dev;
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const struct backlight_properties props = {
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.type = BACKLIGHT_RAW,
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.brightness = 511,
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.max_brightness = 2047,
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};
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return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
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&rm69380_bl_ops, &props);
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}
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static int rm69380_probe(struct mipi_dsi_device *dsi)
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{
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struct mipi_dsi_host *dsi_sec_host;
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struct rm69380_panel *ctx;
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struct device *dev = &dsi->dev;
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struct device_node *dsi_sec;
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int ret, i;
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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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ctx->supplies[0].supply = "vddio";
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ctx->supplies[1].supply = "avdd";
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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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ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
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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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dsi_sec = of_graph_get_remote_node(dsi->dev.of_node, 1, -1);
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if (dsi_sec) {
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const struct mipi_dsi_device_info info = { "RM69380 DSI1", 0,
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dsi_sec };
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dsi_sec_host = of_find_mipi_dsi_host_by_node(dsi_sec);
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of_node_put(dsi_sec);
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if (!dsi_sec_host)
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return dev_err_probe(dev, -EPROBE_DEFER,
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"Cannot get secondary DSI host\n");
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ctx->dsi[1] =
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devm_mipi_dsi_device_register_full(dev, dsi_sec_host, &info);
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if (IS_ERR(ctx->dsi[1]))
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return dev_err_probe(dev, PTR_ERR(ctx->dsi[1]),
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"Cannot get secondary DSI node\n");
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mipi_dsi_set_drvdata(ctx->dsi[1], ctx);
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}
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ctx->dsi[0] = dsi;
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mipi_dsi_set_drvdata(dsi, ctx);
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drm_panel_init(&ctx->panel, dev, &rm69380_panel_funcs,
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DRM_MODE_CONNECTOR_DSI);
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ctx->panel.prepare_prev_first = true;
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ctx->panel.backlight = rm69380_create_backlight(dsi);
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if (IS_ERR(ctx->panel.backlight))
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return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
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"Failed to create backlight\n");
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drm_panel_add(&ctx->panel);
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for (i = 0; i < ARRAY_SIZE(ctx->dsi); i++) {
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if (!ctx->dsi[i])
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continue;
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dev_dbg(&ctx->dsi[i]->dev, "Binding DSI %d\n", i);
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ctx->dsi[i]->lanes = 4;
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ctx->dsi[i]->format = MIPI_DSI_FMT_RGB888;
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ctx->dsi[i]->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
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MIPI_DSI_CLOCK_NON_CONTINUOUS;
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ret = devm_mipi_dsi_attach(dev, ctx->dsi[i]);
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if (ret < 0) {
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drm_panel_remove(&ctx->panel);
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return dev_err_probe(dev, ret,
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"Failed to attach to DSI%d\n", i);
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}
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}
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return 0;
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}
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static void rm69380_remove(struct mipi_dsi_device *dsi)
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{
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struct rm69380_panel *ctx = mipi_dsi_get_drvdata(dsi);
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drm_panel_remove(&ctx->panel);
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}
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static const struct of_device_id rm69380_of_match[] = {
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{ .compatible = "lenovo,j716f-edo-rm69380" },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, rm69380_of_match);
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static struct mipi_dsi_driver rm69380_panel_driver = {
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.probe = rm69380_probe,
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.remove = rm69380_remove,
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.driver = {
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.name = "panel-raydium-rm69380",
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.of_match_table = rm69380_of_match,
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},
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};
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module_mipi_dsi_driver(rm69380_panel_driver);
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MODULE_AUTHOR("David Wronek <david@mainlining.org");
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MODULE_DESCRIPTION("DRM driver for Raydium RM69380-equipped DSI panels");
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MODULE_LICENSE("GPL");
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