+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-// Copyright (c) 2021 Linaro Ltd.
-// Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree:
-// Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
-
-#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_mipi_dsi.h>
-#include <drm/drm_modes.h>
-#include <drm/drm_panel.h>
-
-struct sharp_ls060 {
- struct drm_panel panel;
- struct mipi_dsi_device *dsi;
- struct regulator *vddi_supply;
- struct regulator *vddh_supply;
- struct regulator *avdd_supply;
- struct regulator *avee_supply;
- struct gpio_desc *reset_gpio;
- bool prepared;
-};
-
-static inline struct sharp_ls060 *to_sharp_ls060(struct drm_panel *panel)
-{
- return container_of(panel, struct sharp_ls060, panel);
-}
-
-#define dsi_dcs_write_seq(dsi, seq...) ({ \
- static const u8 d[] = { seq }; \
- \
- mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
- })
-
-static void sharp_ls060_reset(struct sharp_ls060 *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 sharp_ls060_on(struct sharp_ls060 *ctx)
-{
- struct mipi_dsi_device *dsi = ctx->dsi;
- struct device *dev = &dsi->dev;
- int ret;
-
- dsi->mode_flags |= MIPI_DSI_MODE_LPM;
-
- ret = dsi_dcs_write_seq(dsi, 0xbb, 0x13);
- if (ret < 0) {
- dev_err(dev, "Failed to send command: %d\n", ret);
- return ret;
- }
-
- ret = dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_MEMORY_START);
- if (ret < 0) {
- dev_err(dev, "Failed to send command: %d\n", ret);
- return ret;
- }
-
- 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);
- if (ret < 0) {
- dev_err(dev, "Failed to set display on: %d\n", ret);
- return ret;
- }
- msleep(50);
-
- return 0;
-}
-
-static int sharp_ls060_off(struct sharp_ls060 *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;
- }
- usleep_range(2000, 3000);
-
- 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(121);
-
- return 0;
-}
-
-static int sharp_ls060_prepare(struct drm_panel *panel)
-{
- struct sharp_ls060 *ctx = to_sharp_ls060(panel);
- struct device *dev = &ctx->dsi->dev;
- int ret;
-
- if (ctx->prepared)
- return 0;
-
- ret = regulator_enable(ctx->vddi_supply);
- if (ret < 0)
- return ret;
-
- ret = regulator_enable(ctx->avdd_supply);
- if (ret < 0)
- goto err_avdd;
-
- msleep(1);
-
- ret = regulator_enable(ctx->avee_supply);
- if (ret < 0)
- goto err_avee;
-
- msleep(10);
-
- ret = regulator_enable(ctx->vddh_supply);
- if (ret < 0)
- goto err_vddh;
-
- msleep(10);
-
- sharp_ls060_reset(ctx);
-
- ret = sharp_ls060_on(ctx);
- if (ret < 0) {
- dev_err(dev, "Failed to initialize panel: %d\n", ret);
- goto err_on;
- }
-
- ctx->prepared = true;
-
- return 0;
-
-err_on:
- regulator_disable(ctx->vddh_supply);
-
- msleep(10);
-
-err_vddh:
- regulator_disable(ctx->avee_supply);
-
-err_avee:
- regulator_disable(ctx->avdd_supply);
-
- gpiod_set_value_cansleep(ctx->reset_gpio, 1);
-
-err_avdd:
- regulator_disable(ctx->vddi_supply);
-
- return ret;
-}
-
-static int sharp_ls060_unprepare(struct drm_panel *panel)
-{
- struct sharp_ls060 *ctx = to_sharp_ls060(panel);
- struct device *dev = &ctx->dsi->dev;
- int ret;
-
- if (!ctx->prepared)
- return 0;
-
- ret = sharp_ls060_off(ctx);
- if (ret < 0)
- dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
-
- regulator_disable(ctx->vddh_supply);
-
- msleep(10);
-
- regulator_disable(ctx->avee_supply);
- regulator_disable(ctx->avdd_supply);
-
- gpiod_set_value_cansleep(ctx->reset_gpio, 1);
-
- regulator_disable(ctx->vddi_supply);
-
- ctx->prepared = false;
- return 0;
-}
-
-static const struct drm_display_mode sharp_ls060_mode = {
- .clock = (1080 + 96 + 16 + 64) * (1920 + 4 + 1 + 16) * 60 / 1000,
- .hdisplay = 1080,
- .hsync_start = 1080 + 96,
- .hsync_end = 1080 + 96 + 16,
- .htotal = 1080 + 96 + 16 + 64,
- .vdisplay = 1920,
- .vsync_start = 1920 + 4,
- .vsync_end = 1920 + 4 + 1,
- .vtotal = 1920 + 4 + 1 + 16,
- .width_mm = 75,
- .height_mm = 132,
-};
-
-static int sharp_ls060_get_modes(struct drm_panel *panel,
- struct drm_connector *connector)
-{
- struct drm_display_mode *mode;
-
- mode = drm_mode_duplicate(connector->dev, &sharp_ls060_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);
-
- return 1;
-}
-
-static const struct drm_panel_funcs sharp_ls060_panel_funcs = {
- .prepare = sharp_ls060_prepare,
- .unprepare = sharp_ls060_unprepare,
- .get_modes = sharp_ls060_get_modes,
-};
-
-static int sharp_ls060_probe(struct mipi_dsi_device *dsi)
-{
- struct device *dev = &dsi->dev;
- struct sharp_ls060 *ctx;
- int ret;
-
- ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
- if (!ctx)
- return -ENOMEM;
-
- ctx->vddi_supply = devm_regulator_get(dev, "vddi");
- if (IS_ERR(ctx->vddi_supply))
- return PTR_ERR(ctx->vddi_supply);
-
- ctx->vddh_supply = devm_regulator_get(dev, "vddh");
- if (IS_ERR(ctx->vddh_supply))
- return PTR_ERR(ctx->vddh_supply);
-
- ctx->avdd_supply = devm_regulator_get(dev, "avdd");
- if (IS_ERR(ctx->avdd_supply))
- return PTR_ERR(ctx->avdd_supply);
-
- ctx->avee_supply = devm_regulator_get(dev, "avee");
- if (IS_ERR(ctx->avee_supply))
- return PTR_ERR(ctx->avee_supply);
-
- 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_MODE_EOT_PACKET |
- MIPI_DSI_CLOCK_NON_CONTINUOUS;
-
- drm_panel_init(&ctx->panel, dev, &sharp_ls060_panel_funcs,
- DRM_MODE_CONNECTOR_DSI);
-
- 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) {
- dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
- drm_panel_remove(&ctx->panel);
- return ret;
- }
-
- return 0;
-}
-
-static int sharp_ls060_remove(struct mipi_dsi_device *dsi)
-{
- struct sharp_ls060 *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);
-
- return 0;
-}
-
-static const struct of_device_id sharp_ls060t1sx01_of_match[] = {
- { .compatible = "sharp,ls060t1sx01" },
- { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, sharp_ls060t1sx01_of_match);
-
-static struct mipi_dsi_driver sharp_ls060_driver = {
- .probe = sharp_ls060_probe,
- .remove = sharp_ls060_remove,
- .driver = {
- .name = "panel-sharp-ls060t1sx01",
- .of_match_table = sharp_ls060t1sx01_of_match,
- },
-};
-module_mipi_dsi_driver(sharp_ls060_driver);
-
-MODULE_AUTHOR("Dmitry Baryshkov <dmitry.baryshkov@linaro.org>");
-MODULE_DESCRIPTION("DRM driver for Sharp LS060T1SX01 1080p video mode dsi panel");
-MODULE_LICENSE("GPL v2");
projects / platform / kernel / linux-starfive.git / commitdiff