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Diffstat (limited to 'drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c')
-rw-r--r--drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c424
1 files changed, 0 insertions, 424 deletions
diff --git a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c b/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
deleted file mode 100644
index 38ff742bc120..000000000000
--- a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
+++ /dev/null
@@ -1,424 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Rockteck jh057n00900 5.5" MIPI-DSI panel driver
- *
- * Copyright (C) Purism SPC 2019
- */
-
-#include <linux/debugfs.h>
-#include <linux/delay.h>
-#include <linux/gpio/consumer.h>
-#include <linux/media-bus-format.h>
-#include <linux/mod_devicetable.h>
-#include <linux/module.h>
-#include <linux/regulator/consumer.h>
-
-#include <video/display_timing.h>
-#include <video/mipi_display.h>
-
-#include <drm/drm_mipi_dsi.h>
-#include <drm/drm_modes.h>
-#include <drm/drm_panel.h>
-#include <drm/drm_print.h>
-
-#define DRV_NAME "panel-rocktech-jh057n00900"
-
-/* Manufacturer specific Commands send via DSI */
-#define ST7703_CMD_ALL_PIXEL_OFF 0x22
-#define ST7703_CMD_ALL_PIXEL_ON 0x23
-#define ST7703_CMD_SETDISP 0xB2
-#define ST7703_CMD_SETRGBIF 0xB3
-#define ST7703_CMD_SETCYC 0xB4
-#define ST7703_CMD_SETBGP 0xB5
-#define ST7703_CMD_SETVCOM 0xB6
-#define ST7703_CMD_SETOTP 0xB7
-#define ST7703_CMD_SETPOWER_EXT 0xB8
-#define ST7703_CMD_SETEXTC 0xB9
-#define ST7703_CMD_SETMIPI 0xBA
-#define ST7703_CMD_SETVDC 0xBC
-#define ST7703_CMD_UNKNOWN0 0xBF
-#define ST7703_CMD_SETSCR 0xC0
-#define ST7703_CMD_SETPOWER 0xC1
-#define ST7703_CMD_SETPANEL 0xCC
-#define ST7703_CMD_SETGAMMA 0xE0
-#define ST7703_CMD_SETEQ 0xE3
-#define ST7703_CMD_SETGIP1 0xE9
-#define ST7703_CMD_SETGIP2 0xEA
-
-struct jh057n {
- struct device *dev;
- struct drm_panel panel;
- struct gpio_desc *reset_gpio;
- struct regulator *vcc;
- struct regulator *iovcc;
- bool prepared;
-
- struct dentry *debugfs;
-};
-
-static inline struct jh057n *panel_to_jh057n(struct drm_panel *panel)
-{
- return container_of(panel, struct jh057n, panel);
-}
-
-#define dsi_generic_write_seq(dsi, seq...) do { \
- static const u8 d[] = { seq }; \
- int ret; \
- ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d)); \
- if (ret < 0) \
- return ret; \
- } while (0)
-
-static int jh057n_init_sequence(struct jh057n *ctx)
-{
- struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
- struct device *dev = ctx->dev;
- int ret;
-
- /*
- * Init sequence was supplied by the panel vendor. Most of the commands
- * resemble the ST7703 but the number of parameters often don't match
- * so it's likely a clone.
- */
- dsi_generic_write_seq(dsi, ST7703_CMD_SETEXTC,
- 0xF1, 0x12, 0x83);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETRGBIF,
- 0x10, 0x10, 0x05, 0x05, 0x03, 0xFF, 0x00, 0x00,
- 0x00, 0x00);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETSCR,
- 0x73, 0x73, 0x50, 0x50, 0x00, 0x00, 0x08, 0x70,
- 0x00);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETVDC, 0x4E);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0B);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETCYC, 0x80);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETDISP, 0xF0, 0x12, 0x30);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETEQ,
- 0x07, 0x07, 0x0B, 0x0B, 0x03, 0x0B, 0x00, 0x00,
- 0x00, 0x00, 0xFF, 0x00, 0xC0, 0x10);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETBGP, 0x08, 0x08);
- msleep(20);
-
- dsi_generic_write_seq(dsi, ST7703_CMD_SETVCOM, 0x3F, 0x3F);
- dsi_generic_write_seq(dsi, ST7703_CMD_UNKNOWN0, 0x02, 0x11, 0x00);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP1,
- 0x82, 0x10, 0x06, 0x05, 0x9E, 0x0A, 0xA5, 0x12,
- 0x31, 0x23, 0x37, 0x83, 0x04, 0xBC, 0x27, 0x38,
- 0x0C, 0x00, 0x03, 0x00, 0x00, 0x00, 0x0C, 0x00,
- 0x03, 0x00, 0x00, 0x00, 0x75, 0x75, 0x31, 0x88,
- 0x88, 0x88, 0x88, 0x88, 0x88, 0x13, 0x88, 0x64,
- 0x64, 0x20, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88,
- 0x02, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP2,
- 0x02, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x02, 0x46, 0x02, 0x88,
- 0x88, 0x88, 0x88, 0x88, 0x88, 0x64, 0x88, 0x13,
- 0x57, 0x13, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88,
- 0x75, 0x88, 0x23, 0x14, 0x00, 0x00, 0x02, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0A,
- 0xA5, 0x00, 0x00, 0x00, 0x00);
- dsi_generic_write_seq(dsi, ST7703_CMD_SETGAMMA,
- 0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41, 0x37,
- 0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10, 0x11,
- 0x18, 0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41,
- 0x37, 0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10,
- 0x11, 0x18);
- msleep(20);
-
- ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
- if (ret < 0) {
- DRM_DEV_ERROR(dev, "Failed to exit sleep mode: %d\n", ret);
- return ret;
- }
- /* Panel is operational 120 msec after reset */
- msleep(60);
- ret = mipi_dsi_dcs_set_display_on(dsi);
- if (ret)
- return ret;
-
- DRM_DEV_DEBUG_DRIVER(dev, "Panel init sequence done\n");
- return 0;
-}
-
-static int jh057n_enable(struct drm_panel *panel)
-{
- struct jh057n *ctx = panel_to_jh057n(panel);
- int ret;
-
- ret = jh057n_init_sequence(ctx);
- if (ret < 0) {
- DRM_DEV_ERROR(ctx->dev, "Panel init sequence failed: %d\n",
- ret);
- return ret;
- }
-
- return 0;
-}
-
-static int jh057n_disable(struct drm_panel *panel)
-{
- struct jh057n *ctx = panel_to_jh057n(panel);
- struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
-
- return mipi_dsi_dcs_set_display_off(dsi);
-}
-
-static int jh057n_unprepare(struct drm_panel *panel)
-{
- struct jh057n *ctx = panel_to_jh057n(panel);
-
- if (!ctx->prepared)
- return 0;
-
- regulator_disable(ctx->iovcc);
- regulator_disable(ctx->vcc);
- ctx->prepared = false;
-
- return 0;
-}
-
-static int jh057n_prepare(struct drm_panel *panel)
-{
- struct jh057n *ctx = panel_to_jh057n(panel);
- int ret;
-
- if (ctx->prepared)
- return 0;
-
- DRM_DEV_DEBUG_DRIVER(ctx->dev, "Resetting the panel\n");
- ret = regulator_enable(ctx->vcc);
- if (ret < 0) {
- DRM_DEV_ERROR(ctx->dev,
- "Failed to enable vcc supply: %d\n", ret);
- return ret;
- }
- ret = regulator_enable(ctx->iovcc);
- if (ret < 0) {
- DRM_DEV_ERROR(ctx->dev,
- "Failed to enable iovcc supply: %d\n", ret);
- goto disable_vcc;
- }
-
- gpiod_set_value_cansleep(ctx->reset_gpio, 1);
- usleep_range(20, 40);
- gpiod_set_value_cansleep(ctx->reset_gpio, 0);
- msleep(20);
-
- ctx->prepared = true;
-
- return 0;
-
-disable_vcc:
- regulator_disable(ctx->vcc);
- return ret;
-}
-
-static const struct drm_display_mode default_mode = {
- .hdisplay = 720,
- .hsync_start = 720 + 90,
- .hsync_end = 720 + 90 + 20,
- .htotal = 720 + 90 + 20 + 20,
- .vdisplay = 1440,
- .vsync_start = 1440 + 20,
- .vsync_end = 1440 + 20 + 4,
- .vtotal = 1440 + 20 + 4 + 12,
- .vrefresh = 60,
- .clock = 75276,
- .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
- .width_mm = 65,
- .height_mm = 130,
-};
-
-static int jh057n_get_modes(struct drm_panel *panel,
- struct drm_connector *connector)
-{
- struct jh057n *ctx = panel_to_jh057n(panel);
- struct drm_display_mode *mode;
-
- mode = drm_mode_duplicate(connector->dev, &default_mode);
- if (!mode) {
- DRM_DEV_ERROR(ctx->dev, "Failed to add mode %ux%u@%u\n",
- default_mode.hdisplay, default_mode.vdisplay,
- default_mode.vrefresh);
- 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 jh057n_drm_funcs = {
- .disable = jh057n_disable,
- .unprepare = jh057n_unprepare,
- .prepare = jh057n_prepare,
- .enable = jh057n_enable,
- .get_modes = jh057n_get_modes,
-};
-
-static int allpixelson_set(void *data, u64 val)
-{
- struct jh057n *ctx = data;
- struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
-
- DRM_DEV_DEBUG_DRIVER(ctx->dev, "Setting all pixels on\n");
- dsi_generic_write_seq(dsi, ST7703_CMD_ALL_PIXEL_ON);
- msleep(val * 1000);
- /* Reset the panel to get video back */
- drm_panel_disable(&ctx->panel);
- drm_panel_unprepare(&ctx->panel);
- drm_panel_prepare(&ctx->panel);
- drm_panel_enable(&ctx->panel);
-
- return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(allpixelson_fops, NULL,
- allpixelson_set, "%llu\n");
-
-static void jh057n_debugfs_init(struct jh057n *ctx)
-{
- ctx->debugfs = debugfs_create_dir(DRV_NAME, NULL);
-
- debugfs_create_file("allpixelson", 0600, ctx->debugfs, ctx,
- &allpixelson_fops);
-}
-
-static void jh057n_debugfs_remove(struct jh057n *ctx)
-{
- debugfs_remove_recursive(ctx->debugfs);
- ctx->debugfs = NULL;
-}
-
-static int jh057n_probe(struct mipi_dsi_device *dsi)
-{
- struct device *dev = &dsi->dev;
- struct jh057n *ctx;
- int ret;
-
- ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
- if (!ctx)
- return -ENOMEM;
-
- ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
- if (IS_ERR(ctx->reset_gpio)) {
- DRM_DEV_ERROR(dev, "cannot get reset gpio\n");
- return PTR_ERR(ctx->reset_gpio);
- }
-
- mipi_dsi_set_drvdata(dsi, ctx);
-
- ctx->dev = dev;
-
- dsi->lanes = 4;
- dsi->format = MIPI_DSI_FMT_RGB888;
- dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
- MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
-
- ctx->vcc = devm_regulator_get(dev, "vcc");
- if (IS_ERR(ctx->vcc)) {
- ret = PTR_ERR(ctx->vcc);
- if (ret != -EPROBE_DEFER)
- DRM_DEV_ERROR(dev,
- "Failed to request vcc regulator: %d\n",
- ret);
- return ret;
- }
- ctx->iovcc = devm_regulator_get(dev, "iovcc");
- if (IS_ERR(ctx->iovcc)) {
- ret = PTR_ERR(ctx->iovcc);
- if (ret != -EPROBE_DEFER)
- DRM_DEV_ERROR(dev,
- "Failed to request iovcc regulator: %d\n",
- ret);
- return ret;
- }
-
- drm_panel_init(&ctx->panel, dev, &jh057n_drm_funcs,
- DRM_MODE_CONNECTOR_DSI);
-
- ret = drm_panel_of_backlight(&ctx->panel);
- if (ret)
- return ret;
-
- drm_panel_add(&ctx->panel);
-
- ret = mipi_dsi_attach(dsi);
- if (ret < 0) {
- DRM_DEV_ERROR(dev,
- "mipi_dsi_attach failed (%d). Is host ready?\n",
- ret);
- drm_panel_remove(&ctx->panel);
- return ret;
- }
-
- DRM_DEV_INFO(dev, "%ux%u@%u %ubpp dsi %udl - ready\n",
- default_mode.hdisplay, default_mode.vdisplay,
- default_mode.vrefresh,
- mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);
-
- jh057n_debugfs_init(ctx);
- return 0;
-}
-
-static void jh057n_shutdown(struct mipi_dsi_device *dsi)
-{
- struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
- int ret;
-
- ret = drm_panel_unprepare(&ctx->panel);
- if (ret < 0)
- DRM_DEV_ERROR(&dsi->dev, "Failed to unprepare panel: %d\n",
- ret);
-
- ret = drm_panel_disable(&ctx->panel);
- if (ret < 0)
- DRM_DEV_ERROR(&dsi->dev, "Failed to disable panel: %d\n",
- ret);
-}
-
-static int jh057n_remove(struct mipi_dsi_device *dsi)
-{
- struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
- int ret;
-
- jh057n_shutdown(dsi);
-
- ret = mipi_dsi_detach(dsi);
- if (ret < 0)
- DRM_DEV_ERROR(&dsi->dev, "Failed to detach from DSI host: %d\n",
- ret);
-
- drm_panel_remove(&ctx->panel);
-
- jh057n_debugfs_remove(ctx);
-
- return 0;
-}
-
-static const struct of_device_id jh057n_of_match[] = {
- { .compatible = "rocktech,jh057n00900" },
- { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, jh057n_of_match);
-
-static struct mipi_dsi_driver jh057n_driver = {
- .probe = jh057n_probe,
- .remove = jh057n_remove,
- .shutdown = jh057n_shutdown,
- .driver = {
- .name = DRV_NAME,
- .of_match_table = jh057n_of_match,
- },
-};
-module_mipi_dsi_driver(jh057n_driver);
-
-MODULE_AUTHOR("Guido Günther <agx@sigxcpu.org>");
-MODULE_DESCRIPTION("DRM driver for Rocktech JH057N00900 MIPI DSI panel");
-MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-13 04:17:45 +0100