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Subject[PATCH 2/2] drm/panel: Add inx Himax8279d MIPI-DSI LCD panel driver
Date
Add STARRY 2081101QFH032011-53G 10.1" WUXGA TFT LCD panel

Signed-off-by: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>
---
drivers/gpu/drm/panel/Kconfig | 9 +
drivers/gpu/drm/panel/Makefile | 1 +
.../gpu/drm/panel/panel-innolux-himax8279d.c | 520 ++++++++++++++++++
3 files changed, 530 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-innolux-himax8279d.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 4894913936e9..288d9268cead 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -132,6 +132,15 @@ config DRM_PANEL_ILITEK_ILI9881C
Say Y if you want to enable support for panels based on the
Ilitek ILI9881c controller.

+config DRM_PANEL_INNOLUX_HIMAX8279D
+ tristate "INX 2081101qfh032011-53g 1200x1920 video panel"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y here if you want to support for inx 2081101qfh032011-53g
+ 1200x1920 video panel.
+
config DRM_PANEL_INNOLUX_P079ZCA
tristate "Innolux P079ZCA panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index cae4d976c069..06be76db0a5b 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02) += panel-feixin-k101-im2ba02.o
obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o
obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o
+obj-$(CONFIG_DRM_PANEL_INNOLUX_HIMAX8279D) += panel-innolux-himax8279d.o
obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o
obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o
obj-$(CONFIG_DRM_PANEL_KHADAS_TS050) += panel-khadas-ts050.o
diff --git a/drivers/gpu/drm/panel/panel-innolux-himax8279d.c b/drivers/gpu/drm/panel/panel-innolux-himax8279d.c
new file mode 100644
index 000000000000..4420303ec709
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-innolux-himax8279d.c
@@ -0,0 +1,520 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021, Huaqin Telecom Technology Co., Ltd
+ * Author: Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/drm_connector.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_panel.h>
+
+#include <video/mipi_display.h>
+
+struct panel_desc {
+ const struct drm_display_mode *modes;
+ unsigned int bpc;
+
+ /**
+ * @width_mm: width of the panel's active display area
+ * @height_mm: height of the panel's active display area
+ */
+ struct {
+ unsigned int width_mm;
+ unsigned int height_mm;
+ } size;
+
+ unsigned long mode_flags;
+ enum mipi_dsi_pixel_format format;
+ const struct panel_init_cmd *init_cmds;
+ unsigned int lanes;
+ bool discharge_on_disable;
+};
+
+struct inx_panel {
+ struct drm_panel base;
+ struct mipi_dsi_device *dsi;
+
+ const struct panel_desc *desc;
+
+ enum drm_panel_orientation orientation;
+ struct regulator *pp1800;
+ struct regulator *avee;
+ struct regulator *avdd;
+ struct gpio_desc *enable_gpio;
+
+ bool prepared;
+};
+
+enum dsi_cmd_type {
+ INIT_DCS_CMD,
+ DELAY_CMD,
+};
+
+struct panel_init_cmd {
+ enum dsi_cmd_type type;
+ size_t len;
+ const char *data;
+};
+
+#define _INIT_DCS_CMD(...) { \
+ .type = INIT_DCS_CMD, \
+ .len = sizeof((char[]){__VA_ARGS__}), \
+ .data = (char[]){__VA_ARGS__} }
+
+#define _INIT_DELAY_CMD(...) { \
+ .type = DELAY_CMD,\
+ .len = sizeof((char[]){__VA_ARGS__}), \
+ .data = (char[]){__VA_ARGS__} }
+
+static const struct panel_init_cmd starry_qfh032011_53g_init_cmd[] = {
+ _INIT_DCS_CMD(0xB0, 0x05),
+ _INIT_DCS_CMD(0xC0, 0x04),
+ _INIT_DCS_CMD(0xC2, 0x03),
+ _INIT_DCS_CMD(0xD9, 0x04),
+ _INIT_DCS_CMD(0xDB, 0x03),
+ _INIT_DCS_CMD(0xB0, 0x01),
+ _INIT_DCS_CMD(0xC3, 0x4F),
+ _INIT_DCS_CMD(0xC4, 0x40),
+ _INIT_DCS_CMD(0xC5, 0x40),
+ _INIT_DCS_CMD(0xC6, 0x40),
+ _INIT_DCS_CMD(0xC7, 0x40),
+ _INIT_DCS_CMD(0xC8, 0x4D),
+ _INIT_DCS_CMD(0xC9, 0x52),
+ _INIT_DCS_CMD(0xCA, 0x51),
+ _INIT_DCS_CMD(0xCD, 0x5D),
+ _INIT_DCS_CMD(0xCE, 0x5B),
+ _INIT_DCS_CMD(0xCF, 0x4B),
+ _INIT_DCS_CMD(0xD0, 0x49),
+ _INIT_DCS_CMD(0xD1, 0x47),
+ _INIT_DCS_CMD(0xD2, 0x45),
+ _INIT_DCS_CMD(0xD3, 0x41),
+ _INIT_DCS_CMD(0xD7, 0x50),
+ _INIT_DCS_CMD(0xD8, 0x40),
+ _INIT_DCS_CMD(0xD9, 0x40),
+ _INIT_DCS_CMD(0xDA, 0x40),
+ _INIT_DCS_CMD(0xDB, 0x40),
+ _INIT_DCS_CMD(0xDC, 0x4E),
+ _INIT_DCS_CMD(0xDD, 0x52),
+ _INIT_DCS_CMD(0xDE, 0x51),
+ _INIT_DCS_CMD(0xE1, 0x5E),
+ _INIT_DCS_CMD(0xE2, 0x5C),
+ _INIT_DCS_CMD(0xE3, 0x4C),
+ _INIT_DCS_CMD(0xE4, 0x4A),
+ _INIT_DCS_CMD(0xE5, 0x48),
+ _INIT_DCS_CMD(0xE6, 0x46),
+ _INIT_DCS_CMD(0xE7, 0x42),
+ _INIT_DCS_CMD(0xB0, 0x03),
+ _INIT_DCS_CMD(0xBE, 0x03),
+ _INIT_DCS_CMD(0xCC, 0x44),
+ _INIT_DCS_CMD(0xC8, 0x07),
+ _INIT_DCS_CMD(0xC9, 0x05),
+ _INIT_DCS_CMD(0xCA, 0x42),
+ _INIT_DCS_CMD(0xCD, 0x3E),
+ _INIT_DCS_CMD(0xCF, 0x60),
+ _INIT_DCS_CMD(0xD2, 0x04),
+ _INIT_DCS_CMD(0xD3, 0x04),
+ _INIT_DCS_CMD(0xD4, 0x01),
+ _INIT_DCS_CMD(0xD5, 0x00),
+ _INIT_DCS_CMD(0xD6, 0x03),
+ _INIT_DCS_CMD(0xD7, 0x04),
+ _INIT_DCS_CMD(0xD9, 0x01),
+ _INIT_DCS_CMD(0xDB, 0x01),
+ _INIT_DCS_CMD(0xE4, 0xF0),
+ _INIT_DCS_CMD(0xE5, 0x0A),
+ _INIT_DCS_CMD(0xB0, 0x00),
+ _INIT_DCS_CMD(0xCC, 0x08),
+ _INIT_DCS_CMD(0xC2, 0x08),
+ _INIT_DCS_CMD(0xC4, 0x10),
+ _INIT_DCS_CMD(0xB0, 0x02),
+ _INIT_DCS_CMD(0xC0, 0x00),
+ _INIT_DCS_CMD(0xC1, 0x0A),
+ _INIT_DCS_CMD(0xC2, 0x20),
+ _INIT_DCS_CMD(0xC3, 0x24),
+ _INIT_DCS_CMD(0xC4, 0x23),
+ _INIT_DCS_CMD(0xC5, 0x29),
+ _INIT_DCS_CMD(0xC6, 0x23),
+ _INIT_DCS_CMD(0xC7, 0x1C),
+ _INIT_DCS_CMD(0xC8, 0x19),
+ _INIT_DCS_CMD(0xC9, 0x17),
+ _INIT_DCS_CMD(0xCA, 0x17),
+ _INIT_DCS_CMD(0xCB, 0x18),
+ _INIT_DCS_CMD(0xCC, 0x1A),
+ _INIT_DCS_CMD(0xCD, 0x1E),
+ _INIT_DCS_CMD(0xCE, 0x20),
+ _INIT_DCS_CMD(0xCF, 0x23),
+ _INIT_DCS_CMD(0xD0, 0x07),
+ _INIT_DCS_CMD(0xD1, 0x00),
+ _INIT_DCS_CMD(0xD2, 0x00),
+ _INIT_DCS_CMD(0xD3, 0x0A),
+ _INIT_DCS_CMD(0xD4, 0x13),
+ _INIT_DCS_CMD(0xD5, 0x1C),
+ _INIT_DCS_CMD(0xD6, 0x1A),
+ _INIT_DCS_CMD(0xD7, 0x13),
+ _INIT_DCS_CMD(0xD8, 0x17),
+ _INIT_DCS_CMD(0xD9, 0x1C),
+ _INIT_DCS_CMD(0xDA, 0x19),
+ _INIT_DCS_CMD(0xDB, 0x17),
+ _INIT_DCS_CMD(0xDC, 0x17),
+ _INIT_DCS_CMD(0xDD, 0x18),
+ _INIT_DCS_CMD(0xDE, 0x1A),
+ _INIT_DCS_CMD(0xDF, 0x1E),
+ _INIT_DCS_CMD(0xE0, 0x20),
+ _INIT_DCS_CMD(0xE1, 0x23),
+ _INIT_DCS_CMD(0xE2, 0x07),
+ _INIT_DCS_CMD(0X11),
+ _INIT_DELAY_CMD(120),
+ _INIT_DCS_CMD(0X29),
+ _INIT_DELAY_CMD(80),
+ {},
+};
+
+static inline struct inx_panel *to_inx_panel(struct drm_panel *panel)
+{
+ return container_of(panel, struct inx_panel, base);
+}
+
+static int inx_panel_init_dcs_cmd(struct inx_panel *inx)
+{
+ struct mipi_dsi_device *dsi = inx->dsi;
+ struct drm_panel *panel = &inx->base;
+ int i, err = 0;
+
+ if (inx->desc->init_cmds) {
+ const struct panel_init_cmd *init_cmds = inx->desc->init_cmds;
+
+ for (i = 0; init_cmds[i].len != 0; i++) {
+ const struct panel_init_cmd *cmd = &init_cmds[i];
+
+ switch (cmd->type) {
+ case DELAY_CMD:
+ msleep(cmd->data[0]);
+ err = 0;
+ break;
+
+ case INIT_DCS_CMD:
+ err = mipi_dsi_dcs_write(dsi, cmd->data[0],
+ cmd->len <= 1 ? NULL :
+ &cmd->data[1],
+ cmd->len - 1);
+ break;
+
+ default:
+ err = -EINVAL;
+ }
+
+ if (err < 0) {
+ dev_err(panel->dev,
+ "failed to write command %u\n", i);
+ return err;
+ }
+ }
+ }
+ return 0;
+}
+
+static int inx_panel_enter_sleep_mode(struct inx_panel *inx)
+{
+ struct mipi_dsi_device *dsi = inx->dsi;
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_set_display_off(dsi);
+ if (ret < 0)
+ return ret;
+
+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int inx_panel_unprepare(struct drm_panel *panel)
+{
+ struct inx_panel *inx = to_inx_panel(panel);
+ int ret;
+
+ if (!inx->prepared)
+ return 0;
+
+ ret = inx_panel_enter_sleep_mode(inx);
+ if (ret < 0) {
+ dev_err(panel->dev, "failed to set panel off: %d\n", ret);
+ return ret;
+ }
+
+ msleep(150);
+
+ if (inx->desc->discharge_on_disable) {
+ regulator_disable(inx->avee);
+ regulator_disable(inx->avdd);
+ usleep_range(5000, 7000);
+ gpiod_set_value(inx->enable_gpio, 0);
+ usleep_range(5000, 7000);
+ regulator_disable(inx->pp1800);
+ } else {
+ gpiod_set_value(inx->enable_gpio, 0);
+ usleep_range(500, 1000);
+ regulator_disable(inx->avee);
+ regulator_disable(inx->avdd);
+ usleep_range(5000, 7000);
+ regulator_disable(inx->pp1800);
+ }
+
+ inx->prepared = false;
+
+ return 0;
+}
+
+static int inx_panel_prepare(struct drm_panel *panel)
+{
+ struct inx_panel *inx = to_inx_panel(panel);
+ int ret;
+
+ if (inx->prepared)
+ return 0;
+
+ gpiod_set_value(inx->enable_gpio, 0);
+ usleep_range(1000, 1500);
+
+ ret = regulator_enable(inx->pp1800);
+ if (ret < 0)
+ return ret;
+
+ usleep_range(3000, 5000);
+
+ ret = regulator_enable(inx->avdd);
+ if (ret < 0)
+ goto poweroff1v8;
+ ret = regulator_enable(inx->avee);
+ if (ret < 0)
+ goto poweroffavdd;
+
+ usleep_range(5000, 10000);
+
+ gpiod_set_value(inx->enable_gpio, 1);
+ usleep_range(1000, 2000);
+ gpiod_set_value(inx->enable_gpio, 0);
+ usleep_range(1000, 2000);
+ gpiod_set_value(inx->enable_gpio, 1);
+ usleep_range(6000, 10000);
+
+ ret = inx_panel_init_dcs_cmd(inx);
+ if (ret < 0) {
+ dev_err(panel->dev, "failed to init panel: %d\n", ret);
+ goto poweroff;
+ }
+
+ inx->prepared = true;
+
+ return 0;
+
+poweroff:
+ regulator_disable(inx->avee);
+poweroffavdd:
+ regulator_disable(inx->avdd);
+poweroff1v8:
+ usleep_range(5000, 7000);
+ regulator_disable(inx->pp1800);
+ gpiod_set_value(inx->enable_gpio, 0);
+
+ return ret;
+}
+
+static int inx_panel_enable(struct drm_panel *panel)
+{
+ msleep(130);
+ return 0;
+}
+
+static const struct drm_display_mode starry_qfh032011_53g_default_mode = {
+ .clock = 165731,
+ .hdisplay = 1200,
+ .hsync_start = 1200 + 100,
+ .hsync_end = 1200 + 100 + 10,
+ .htotal = 1200 + 100 + 10 + 100,
+ .vdisplay = 1920,
+ .vsync_start = 1920 + 14,
+ .vsync_end = 1920 + 14 + 10,
+ .vtotal = 1920 + 14 + 10 + 15,
+};
+
+static const struct panel_desc starry_qfh032011_53g_desc = {
+ .modes = &starry_qfh032011_53g_default_mode,
+ .bpc = 8,
+ .size = {
+ .width_mm = 135,
+ .height_mm = 216,
+ },
+ .lanes = 4,
+ .format = MIPI_DSI_FMT_RGB888,
+ .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+ MIPI_DSI_MODE_LPM,
+ .init_cmds = starry_qfh032011_53g_init_cmd,
+ .discharge_on_disable = false,
+};
+
+static int inx_panel_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct inx_panel *inx = to_inx_panel(panel);
+ const struct drm_display_mode *m = inx->desc->modes;
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(connector->dev, m);
+ if (!mode) {
+ dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
+ m->hdisplay, m->vdisplay, drm_mode_vrefresh(m));
+ return -ENOMEM;
+ }
+
+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+ drm_mode_set_name(mode);
+ drm_mode_probed_add(connector, mode);
+
+ connector->display_info.width_mm = inx->desc->size.width_mm;
+ connector->display_info.height_mm = inx->desc->size.height_mm;
+ connector->display_info.bpc = inx->desc->bpc;
+ drm_connector_set_panel_orientation(connector, inx->orientation);
+
+ return 1;
+}
+
+static const struct drm_panel_funcs inx_panel_funcs = {
+ .unprepare = inx_panel_unprepare,
+ .prepare = inx_panel_prepare,
+ .enable = inx_panel_enable,
+ .get_modes = inx_panel_get_modes,
+};
+
+static int inx_panel_add(struct inx_panel *inx)
+{
+ struct device *dev = &inx->dsi->dev;
+ int err;
+
+ inx->avdd = devm_regulator_get(dev, "avdd");
+ if (IS_ERR(inx->avdd))
+ return PTR_ERR(inx->avdd);
+
+ inx->avee = devm_regulator_get(dev, "avee");
+ if (IS_ERR(inx->avee))
+ return PTR_ERR(inx->avee);
+
+ inx->pp1800 = devm_regulator_get(dev, "pp1800");
+ if (IS_ERR(inx->pp1800))
+ return PTR_ERR(inx->pp1800);
+
+ inx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
+ if (IS_ERR(inx->enable_gpio)) {
+ dev_err(dev, "cannot get reset-gpios %ld\n",
+ PTR_ERR(inx->enable_gpio));
+ return PTR_ERR(inx->enable_gpio);
+ }
+
+ gpiod_set_value(inx->enable_gpio, 0);
+
+ drm_panel_init(&inx->base, dev, &inx_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ err = of_drm_get_panel_orientation(dev->of_node, &inx->orientation);
+ if (err < 0) {
+ dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err);
+ return err;
+ }
+
+ err = drm_panel_of_backlight(&inx->base);
+ if (err)
+ return err;
+
+ inx->base.funcs = &inx_panel_funcs;
+ inx->base.dev = &inx->dsi->dev;
+
+ drm_panel_add(&inx->base);
+
+ return 0;
+}
+
+static int inx_panel_probe(struct mipi_dsi_device *dsi)
+{
+ struct inx_panel *inx;
+ int ret;
+ const struct panel_desc *desc;
+
+ inx = devm_kzalloc(&dsi->dev, sizeof(*inx), GFP_KERNEL);
+ if (!inx)
+ return -ENOMEM;
+
+ desc = of_device_get_match_data(&dsi->dev);
+ dsi->lanes = desc->lanes;
+ dsi->format = desc->format;
+ dsi->mode_flags = desc->mode_flags;
+ inx->desc = desc;
+ inx->dsi = dsi;
+ ret = inx_panel_add(inx);
+ if (ret < 0)
+ return ret;
+
+ mipi_dsi_set_drvdata(dsi, inx);
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret)
+ drm_panel_remove(&inx->base);
+
+ return ret;
+}
+
+static void inx_panel_shutdown(struct mipi_dsi_device *dsi)
+{
+ struct inx_panel *inx = mipi_dsi_get_drvdata(dsi);
+
+ drm_panel_disable(&inx->base);
+ drm_panel_unprepare(&inx->base);
+}
+
+static int inx_panel_remove(struct mipi_dsi_device *dsi)
+{
+ struct inx_panel *inx = mipi_dsi_get_drvdata(dsi);
+ int ret;
+
+ inx_panel_shutdown(dsi);
+
+ ret = mipi_dsi_detach(dsi);
+ if (ret < 0)
+ dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);
+
+ if (inx->base.dev)
+ drm_panel_remove(&inx->base);
+
+ return 0;
+}
+
+static const struct of_device_id inx_of_match[] = {
+ { .compatible = "starry,2081101qfh032011-53g",
+ .data = &starry_qfh032011_53g_desc
+ },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, inx_of_match);
+
+static struct mipi_dsi_driver inx_panel_driver = {
+ .driver = {
+ .name = "panel-innolux-himax8279d",
+ .of_match_table = inx_of_match,
+ },
+ .probe = inx_panel_probe,
+ .remove = inx_panel_remove,
+ .shutdown = inx_panel_shutdown,
+};
+module_mipi_dsi_driver(inx_panel_driver);
+
+MODULE_AUTHOR("Zhengqiao Xia <xiazhengqiao@huaqin.corp-partner.google.com>");
+MODULE_DESCRIPTION("INNOLUX HIMAX8279D 1200x1920 video mode panel driver");
+MODULE_LICENSE("GPL v2");
--
2.17.1
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