[PATCH v1 2/2] drm/panel: kd101ne3: add new panel driver
lvzhaoxiong
lvzhaoxiong at huaqin.corp-partner.google.com
Thu Apr 18 08:15:48 UTC 2024
The kingdisplay panel is based on JD9365DA controller.
Add a driver for it.
Signed-off-by: lvzhaoxiong <lvzhaoxiong at huaqin.corp-partner.google.com>
---
drivers/gpu/drm/panel/Kconfig | 9 +
drivers/gpu/drm/panel/Makefile | 1 +
.../drm/panel/panel-kingdisplay-kd101ne3.c | 607 ++++++++++++++++++
3 files changed, 617 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-kingdisplay-kd101ne3.c
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 154f5bf82980..2c73086cf102 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -297,6 +297,15 @@ config DRM_PANEL_KINGDISPLAY_KD097D04
24 bit RGB per pixel. It provides a MIPI DSI interface to
the host and has a built-in LED backlight.
+config DRM_PANEL_KINGDISPLAY_KD101NE3
+ tristate "Kingdisplay kd101ne3 panel"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y if you want to enable support for panels based on the
+ Kingdisplay kd101ne3 controller.
+
config DRM_PANEL_LEADTEK_LTK050H3146W
tristate "Leadtek LTK050H3146W panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 24a02655d726..cbd414b98bb0 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -30,6 +30,7 @@ obj-$(CONFIG_DRM_PANEL_JDI_LPM102A188A) += panel-jdi-lpm102a188a.o
obj-$(CONFIG_DRM_PANEL_JDI_R63452) += panel-jdi-fhd-r63452.o
obj-$(CONFIG_DRM_PANEL_KHADAS_TS050) += panel-khadas-ts050.o
obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04) += panel-kingdisplay-kd097d04.o
+obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD101NE3) += panel-kingdisplay-kd101ne3.o
obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W) += panel-leadtek-ltk050h3146w.o
obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829) += panel-leadtek-ltk500hd1829.o
obj-$(CONFIG_DRM_PANEL_LG_LB035Q02) += panel-lg-lb035q02.o
diff --git a/drivers/gpu/drm/panel/panel-kingdisplay-kd101ne3.c b/drivers/gpu/drm/panel/panel-kingdisplay-kd101ne3.c
new file mode 100644
index 000000000000..dbf0992f8b81
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-kingdisplay-kd101ne3.c
@@ -0,0 +1,607 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Panels based on the JD9365DA display controller.
+ * Author: Zhaoxiong Lv <lvzhaoxiong at 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;
+ bool lp11_before_reset;
+};
+
+struct kingdisplay_panel {
+ struct drm_panel base;
+ struct mipi_dsi_device *dsi;
+
+ const struct panel_desc *desc;
+
+ enum drm_panel_orientation orientation;
+ struct regulator *pp3300;
+ struct gpio_desc *enable_gpio;
+};
+
+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 kingdisplay_kd101ne3_init_cmd[] = {
+ _INIT_DELAY_CMD(50),
+ _INIT_DCS_CMD(0xE0, 0x00),
+ _INIT_DCS_CMD(0xE1, 0x93),
+ _INIT_DCS_CMD(0xE2, 0x65),
+ _INIT_DCS_CMD(0xE3, 0xF8),
+ _INIT_DCS_CMD(0x80, 0x03),
+ _INIT_DCS_CMD(0xE0, 0x01),
+ _INIT_DCS_CMD(0x0C, 0x74),
+ _INIT_DCS_CMD(0x17, 0x00),
+ _INIT_DCS_CMD(0x18, 0xC7),
+ _INIT_DCS_CMD(0x19, 0x01),
+ _INIT_DCS_CMD(0x1A, 0x00),
+ _INIT_DCS_CMD(0x1B, 0xC7),
+ _INIT_DCS_CMD(0x1C, 0x01),
+ _INIT_DCS_CMD(0x24, 0xFE),
+ _INIT_DCS_CMD(0x37, 0x19),
+ _INIT_DCS_CMD(0x35, 0x28),
+ _INIT_DCS_CMD(0x38, 0x05),
+ _INIT_DCS_CMD(0x39, 0x08),
+ _INIT_DCS_CMD(0x3A, 0x12),
+ _INIT_DCS_CMD(0x3C, 0x7E),
+ _INIT_DCS_CMD(0x3D, 0xFF),
+ _INIT_DCS_CMD(0x3E, 0xFF),
+ _INIT_DCS_CMD(0x3F, 0x7F),
+ _INIT_DCS_CMD(0x40, 0x06),
+ _INIT_DCS_CMD(0x41, 0xA0),
+ _INIT_DCS_CMD(0x43, 0x1E),
+ _INIT_DCS_CMD(0x44, 0x0B),
+ _INIT_DCS_CMD(0x55, 0x02),
+ _INIT_DCS_CMD(0x57, 0x6A),
+ _INIT_DCS_CMD(0x59, 0x0A),
+ _INIT_DCS_CMD(0x5A, 0x2E),
+ _INIT_DCS_CMD(0x5B, 0x1A),
+ _INIT_DCS_CMD(0x5C, 0x15),
+ _INIT_DCS_CMD(0x5D, 0x7F),
+ _INIT_DCS_CMD(0x5E, 0x61),
+ _INIT_DCS_CMD(0x5F, 0x50),
+ _INIT_DCS_CMD(0x60, 0x43),
+ _INIT_DCS_CMD(0x61, 0x3F),
+ _INIT_DCS_CMD(0x62, 0x32),
+ _INIT_DCS_CMD(0x63, 0x35),
+ _INIT_DCS_CMD(0x64, 0x1F),
+ _INIT_DCS_CMD(0x65, 0x38),
+ _INIT_DCS_CMD(0x66, 0x36),
+ _INIT_DCS_CMD(0x67, 0x36),
+ _INIT_DCS_CMD(0x68, 0x54),
+ _INIT_DCS_CMD(0x69, 0x42),
+ _INIT_DCS_CMD(0x6A, 0x48),
+ _INIT_DCS_CMD(0x6B, 0x39),
+ _INIT_DCS_CMD(0x6C, 0x34),
+ _INIT_DCS_CMD(0x6D, 0x26),
+ _INIT_DCS_CMD(0x6E, 0x14),
+ _INIT_DCS_CMD(0x6F, 0x02),
+ _INIT_DCS_CMD(0x70, 0x7F),
+ _INIT_DCS_CMD(0x71, 0x61),
+ _INIT_DCS_CMD(0x72, 0x50),
+ _INIT_DCS_CMD(0x73, 0x43),
+ _INIT_DCS_CMD(0x74, 0x3F),
+ _INIT_DCS_CMD(0x75, 0x32),
+ _INIT_DCS_CMD(0x76, 0x35),
+ _INIT_DCS_CMD(0x77, 0x1F),
+ _INIT_DCS_CMD(0x78, 0x38),
+ _INIT_DCS_CMD(0x79, 0x36),
+ _INIT_DCS_CMD(0x7A, 0x36),
+ _INIT_DCS_CMD(0x7B, 0x54),
+ _INIT_DCS_CMD(0x7C, 0x42),
+ _INIT_DCS_CMD(0x7D, 0x48),
+ _INIT_DCS_CMD(0x7E, 0x39),
+ _INIT_DCS_CMD(0x7F, 0x34),
+ _INIT_DCS_CMD(0x80, 0x26),
+ _INIT_DCS_CMD(0x81, 0x14),
+ _INIT_DCS_CMD(0x82, 0x02),
+ _INIT_DCS_CMD(0xE0, 0x02),
+ _INIT_DCS_CMD(0x00, 0x52),
+ _INIT_DCS_CMD(0x01, 0x5F),
+ _INIT_DCS_CMD(0x02, 0x5F),
+ _INIT_DCS_CMD(0x03, 0x50),
+ _INIT_DCS_CMD(0x04, 0x77),
+ _INIT_DCS_CMD(0x05, 0x57),
+ _INIT_DCS_CMD(0x06, 0x5F),
+ _INIT_DCS_CMD(0x07, 0x4E),
+ _INIT_DCS_CMD(0x08, 0x4C),
+ _INIT_DCS_CMD(0x09, 0x5F),
+ _INIT_DCS_CMD(0x0A, 0x4A),
+ _INIT_DCS_CMD(0x0B, 0x48),
+ _INIT_DCS_CMD(0x0C, 0x5F),
+ _INIT_DCS_CMD(0x0D, 0x46),
+ _INIT_DCS_CMD(0x0E, 0x44),
+ _INIT_DCS_CMD(0x0F, 0x40),
+ _INIT_DCS_CMD(0x10, 0x5F),
+ _INIT_DCS_CMD(0x11, 0x5F),
+ _INIT_DCS_CMD(0x12, 0x5F),
+ _INIT_DCS_CMD(0x13, 0x5F),
+ _INIT_DCS_CMD(0x14, 0x5F),
+ _INIT_DCS_CMD(0x15, 0x5F),
+ _INIT_DCS_CMD(0x16, 0x53),
+ _INIT_DCS_CMD(0x17, 0x5F),
+ _INIT_DCS_CMD(0x18, 0x5F),
+ _INIT_DCS_CMD(0x19, 0x51),
+ _INIT_DCS_CMD(0x1A, 0x77),
+ _INIT_DCS_CMD(0x1B, 0x57),
+ _INIT_DCS_CMD(0x1C, 0x5F),
+ _INIT_DCS_CMD(0x1D, 0x4F),
+ _INIT_DCS_CMD(0x1E, 0x4D),
+ _INIT_DCS_CMD(0x1F, 0x5F),
+ _INIT_DCS_CMD(0x20, 0x4B),
+ _INIT_DCS_CMD(0x21, 0x49),
+ _INIT_DCS_CMD(0x22, 0x5F),
+ _INIT_DCS_CMD(0x23, 0x47),
+ _INIT_DCS_CMD(0x24, 0x45),
+ _INIT_DCS_CMD(0x25, 0x41),
+ _INIT_DCS_CMD(0x26, 0x5F),
+ _INIT_DCS_CMD(0x27, 0x5F),
+ _INIT_DCS_CMD(0x28, 0x5F),
+ _INIT_DCS_CMD(0x29, 0x5F),
+ _INIT_DCS_CMD(0x2A, 0x5F),
+ _INIT_DCS_CMD(0x2B, 0x5F),
+ _INIT_DCS_CMD(0x2C, 0x13),
+ _INIT_DCS_CMD(0x2D, 0x1F),
+ _INIT_DCS_CMD(0x2E, 0x1F),
+ _INIT_DCS_CMD(0x2F, 0x01),
+ _INIT_DCS_CMD(0x30, 0x17),
+ _INIT_DCS_CMD(0x31, 0x17),
+ _INIT_DCS_CMD(0x32, 0x1F),
+ _INIT_DCS_CMD(0x33, 0x0D),
+ _INIT_DCS_CMD(0x34, 0x0F),
+ _INIT_DCS_CMD(0x35, 0x1F),
+ _INIT_DCS_CMD(0x36, 0x05),
+ _INIT_DCS_CMD(0x37, 0x07),
+ _INIT_DCS_CMD(0x38, 0x1F),
+ _INIT_DCS_CMD(0x39, 0x09),
+ _INIT_DCS_CMD(0x3A, 0x0B),
+ _INIT_DCS_CMD(0x3B, 0x11),
+ _INIT_DCS_CMD(0x3C, 0x1F),
+ _INIT_DCS_CMD(0x3D, 0x1F),
+ _INIT_DCS_CMD(0x3E, 0x1F),
+ _INIT_DCS_CMD(0x3F, 0x1F),
+ _INIT_DCS_CMD(0x40, 0x1F),
+ _INIT_DCS_CMD(0x41, 0x1F),
+ _INIT_DCS_CMD(0x42, 0x12),
+ _INIT_DCS_CMD(0x43, 0x1F),
+ _INIT_DCS_CMD(0x44, 0x1F),
+ _INIT_DCS_CMD(0x45, 0x00),
+ _INIT_DCS_CMD(0x46, 0x17),
+ _INIT_DCS_CMD(0x47, 0x17),
+ _INIT_DCS_CMD(0x48, 0x1F),
+ _INIT_DCS_CMD(0x49, 0x0C),
+ _INIT_DCS_CMD(0x4A, 0x0E),
+ _INIT_DCS_CMD(0x4B, 0x1F),
+ _INIT_DCS_CMD(0x4C, 0x04),
+ _INIT_DCS_CMD(0x4D, 0x06),
+ _INIT_DCS_CMD(0x4E, 0x1F),
+ _INIT_DCS_CMD(0x4F, 0x08),
+ _INIT_DCS_CMD(0x50, 0x0A),
+ _INIT_DCS_CMD(0x51, 0x10),
+ _INIT_DCS_CMD(0x52, 0x1F),
+ _INIT_DCS_CMD(0x53, 0x1F),
+ _INIT_DCS_CMD(0x54, 0x1F),
+ _INIT_DCS_CMD(0x55, 0x1F),
+ _INIT_DCS_CMD(0x56, 0x1F),
+ _INIT_DCS_CMD(0x57, 0x1F),
+ _INIT_DCS_CMD(0x58, 0x40),
+ _INIT_DCS_CMD(0x5B, 0x10),
+ _INIT_DCS_CMD(0x5C, 0x06),
+ _INIT_DCS_CMD(0x5D, 0x40),
+ _INIT_DCS_CMD(0x5E, 0x00),
+ _INIT_DCS_CMD(0x5F, 0x00),
+ _INIT_DCS_CMD(0x60, 0x40),
+ _INIT_DCS_CMD(0x61, 0x03),
+ _INIT_DCS_CMD(0x62, 0x04),
+ _INIT_DCS_CMD(0x63, 0x6C),
+ _INIT_DCS_CMD(0x64, 0x6C),
+ _INIT_DCS_CMD(0x65, 0x75),
+ _INIT_DCS_CMD(0x66, 0x08),
+ _INIT_DCS_CMD(0x67, 0xB4),
+ _INIT_DCS_CMD(0x68, 0x08),
+ _INIT_DCS_CMD(0x69, 0x6C),
+ _INIT_DCS_CMD(0x6A, 0x6C),
+ _INIT_DCS_CMD(0x6B, 0x0C),
+ _INIT_DCS_CMD(0x6D, 0x00),
+ _INIT_DCS_CMD(0x6E, 0x00),
+ _INIT_DCS_CMD(0x6F, 0x88),
+ _INIT_DCS_CMD(0x75, 0xBB),
+ _INIT_DCS_CMD(0x76, 0x00),
+ _INIT_DCS_CMD(0x77, 0x05),
+ _INIT_DCS_CMD(0x78, 0x2A),
+ _INIT_DCS_CMD(0xE0, 0x04),
+ _INIT_DCS_CMD(0x00, 0x0E),
+ _INIT_DCS_CMD(0x02, 0xB3),
+ _INIT_DCS_CMD(0x09, 0x61),
+ _INIT_DCS_CMD(0x0E, 0x48),
+
+ _INIT_DCS_CMD(0xE0, 0x00),
+ _INIT_DCS_CMD(0X11),
+ /* T6: 120ms */
+ _INIT_DELAY_CMD(120),
+ _INIT_DCS_CMD(0X29),
+ _INIT_DELAY_CMD(20),
+ {},
+};
+
+static inline struct kingdisplay_panel *to_kingdisplay_panel(struct drm_panel *panel)
+{
+ return container_of(panel, struct kingdisplay_panel, base);
+}
+
+static int kingdisplay_panel_init_dcs_cmd(struct kingdisplay_panel *kingdisplay)
+{
+ struct mipi_dsi_device *dsi = kingdisplay->dsi;
+ struct drm_panel *panel = &kingdisplay->base;
+ int i, err = 0;
+
+ if (kingdisplay->desc->init_cmds) {
+ const struct panel_init_cmd *init_cmds = kingdisplay->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 kingdisplay_panel_enter_sleep_mode(struct kingdisplay_panel *kingdisplay)
+{
+ struct mipi_dsi_device *dsi = kingdisplay->dsi;
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ usleep_range(1000, 2000);
+ ret = mipi_dsi_dcs_set_display_off(dsi);
+ if (ret < 0)
+ return ret;
+
+ msleep(50);
+
+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int kingdisplay_panel_disable(struct drm_panel *panel)
+{
+ struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
+ int ret;
+
+ ret = kingdisplay_panel_enter_sleep_mode(kingdisplay);
+ if (ret < 0) {
+ dev_err(panel->dev, "failed to set panel off: %d\n", ret);
+ return ret;
+ }
+
+ msleep(100);
+
+ return 0;
+}
+
+static int kingdisplay_panel_unprepare(struct drm_panel *panel)
+{
+ struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
+ int err;
+
+ gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
+
+ /* T15: 2ms */
+ usleep_range(1000, 2000);
+
+ err = regulator_disable(kingdisplay->pp3300);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int kingdisplay_panel_prepare(struct drm_panel *panel)
+{
+ struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
+ int ret;
+
+ gpiod_set_value(kingdisplay->enable_gpio, 0);
+
+ ret = regulator_enable(kingdisplay->pp3300);
+ if (ret < 0)
+ return ret;
+
+ /* T1: 5ms */
+ usleep_range(5000, 6000);
+
+ if (kingdisplay->desc->lp11_before_reset) {
+ mipi_dsi_dcs_nop(kingdisplay->dsi);
+ usleep_range(1000, 2000);
+ }
+
+ /* T2: 10ms, T1 + T2 > 5ms*/
+ usleep_range(10000, 11000);
+
+ gpiod_set_value_cansleep(kingdisplay->enable_gpio, 1);
+
+ ret = kingdisplay_panel_init_dcs_cmd(kingdisplay);
+ if (ret < 0) {
+ dev_err(panel->dev, "failed to init panel: %d\n", ret);
+ goto poweroff;
+ }
+
+ return 0;
+
+poweroff:
+ regulator_disable(kingdisplay->pp3300);
+ /* T6: 2ms */
+ usleep_range(1000, 2000);
+ gpiod_set_value(kingdisplay->enable_gpio, 0);
+
+ return ret;
+}
+
+static int kingdisplay_panel_enable(struct drm_panel *panel)
+{
+ msleep(130);
+ return 0;
+}
+
+static const struct drm_display_mode kingdisplay_kd101ne3_40ti_default_mode = {
+ .clock = 70595,
+ .hdisplay = 800,
+ .hsync_start = 800 + 30,
+ .hsync_end = 800 + 30 + 30,
+ .htotal = 800 + 30 + 30 + 30,
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 30,
+ .vsync_end = 1280 + 30 + 4,
+ .vtotal = 1280 + 30 + 4 + 8,
+ .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+};
+
+static const struct panel_desc kingdisplay_kd101ne3_40ti_desc = {
+ .modes = &kingdisplay_kd101ne3_40ti_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 = kingdisplay_kd101ne3_init_cmd,
+ .lp11_before_reset = true,
+};
+
+static int kingdisplay_panel_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
+ const struct drm_display_mode *m = kingdisplay->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 = kingdisplay->desc->size.width_mm;
+ connector->display_info.height_mm = kingdisplay->desc->size.height_mm;
+ connector->display_info.bpc = kingdisplay->desc->bpc;
+ /*
+ * TODO: Remove once all drm drivers call
+ * drm_connector_set_orientation_from_panel()
+ */
+ drm_connector_set_panel_orientation(connector, kingdisplay->orientation);
+
+ return 1;
+}
+
+static enum drm_panel_orientation kingdisplay_panel_get_orientation(struct drm_panel *panel)
+{
+ struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
+
+ return kingdisplay->orientation;
+}
+
+static const struct drm_panel_funcs kingdisplay_panel_funcs = {
+ .disable = kingdisplay_panel_disable,
+ .unprepare = kingdisplay_panel_unprepare,
+ .prepare = kingdisplay_panel_prepare,
+ .enable = kingdisplay_panel_enable,
+ .get_modes = kingdisplay_panel_get_modes,
+ .get_orientation = kingdisplay_panel_get_orientation,
+};
+
+static int kingdisplay_panel_add(struct kingdisplay_panel *kingdisplay)
+{
+ struct device *dev = &kingdisplay->dsi->dev;
+ int err;
+
+ kingdisplay->pp3300 = devm_regulator_get(dev, "pp3300");
+ if (IS_ERR(kingdisplay->pp3300))
+ return PTR_ERR(kingdisplay->pp3300);
+
+
+ kingdisplay->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
+ if (IS_ERR(kingdisplay->enable_gpio)) {
+ dev_err(dev, "cannot get reset-gpios %ld\n",
+ PTR_ERR(kingdisplay->enable_gpio));
+ return PTR_ERR(kingdisplay->enable_gpio);
+ }
+
+ gpiod_set_value(kingdisplay->enable_gpio, 0);
+
+ drm_panel_init(&kingdisplay->base, dev, &kingdisplay_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ err = of_drm_get_panel_orientation(dev->of_node, &kingdisplay->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(&kingdisplay->base);
+ if (err)
+ return err;
+
+ kingdisplay->base.funcs = &kingdisplay_panel_funcs;
+ kingdisplay->base.dev = &kingdisplay->dsi->dev;
+
+ drm_panel_add(&kingdisplay->base);
+
+ return 0;
+}
+
+static int kingdisplay_panel_probe(struct mipi_dsi_device *dsi)
+{
+ struct kingdisplay_panel *kingdisplay;
+ int ret;
+ const struct panel_desc *desc;
+
+ kingdisplay = devm_kzalloc(&dsi->dev, sizeof(*kingdisplay), GFP_KERNEL);
+ if (!kingdisplay)
+ return -ENOMEM;
+
+ desc = of_device_get_match_data(&dsi->dev);
+ dsi->lanes = desc->lanes;
+ dsi->format = desc->format;
+ dsi->mode_flags = desc->mode_flags;
+ kingdisplay->desc = desc;
+ kingdisplay->dsi = dsi;
+ ret = kingdisplay_panel_add(kingdisplay);
+ if (ret < 0)
+ return ret;
+
+ mipi_dsi_set_drvdata(dsi, kingdisplay);
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret)
+ drm_panel_remove(&kingdisplay->base);
+
+ return ret;
+}
+
+static void kingdisplay_panel_shutdown(struct mipi_dsi_device *dsi)
+{
+ struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi);
+
+ drm_panel_disable(&kingdisplay->base);
+ drm_panel_unprepare(&kingdisplay->base);
+}
+
+static void kingdisplay_panel_remove(struct mipi_dsi_device *dsi)
+{
+ struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi);
+ int ret;
+
+ kingdisplay_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 (kingdisplay->base.dev)
+ drm_panel_remove(&kingdisplay->base);
+}
+
+static const struct of_device_id kingdisplay_of_match[] = {
+ { .compatible = "kingdisplay,kd101ne3-40ti",
+ .data = &kingdisplay_kd101ne3_40ti_desc
+ },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, kingdisplay_of_match);
+
+static struct mipi_dsi_driver kingdisplay_panel_driver = {
+ .driver = {
+ .name = "panel-kingdisplay-kd101ne3",
+ .of_match_table = kingdisplay_of_match,
+ },
+ .probe = kingdisplay_panel_probe,
+ .remove = kingdisplay_panel_remove,
+ .shutdown = kingdisplay_panel_shutdown,
+};
+module_mipi_dsi_driver(kingdisplay_panel_driver);
+
+MODULE_AUTHOR("Zhaoxiong Lv <lvzhaoxiong at huaqin.corp-partner.google.com>");
+MODULE_DESCRIPTION("kingdisplay kd101ne3-40ti 800x1280 video mode panel driver");
+MODULE_LICENSE("GPL v2");
--
2.17.1
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