drm/panel: support for auo, kd101n80-45na wuxga dsi video mode panel

Auo,kd101n80-45na's connector is same as boe,tv101wum-nl6.
The most codes can be reuse.
So auo,kd101n80-45na and boe,tv101wum-nl6 use one driver file.
Add the different parts in driver data.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116021511.22675-4-jitao.shi@mediatek.com

drivers/gpu/drm/panel/Kconfig

@@ -30,13 +30,13 @@ config DRM_PANEL_BOE_HIMAX8279D
 	  the host and has a built-in LED backlight.
 
 config DRM_PANEL_BOE_TV101WUM_NL6
-	tristate "BOE TV101WUM 1200x1920 panel"
+	tristate "BOE TV101WUM and AUO KD101N80 45NA 1200x1920 panel"
 	depends on OF
 	depends on DRM_MIPI_DSI
 	depends on BACKLIGHT_CLASS_DEVICE
 	help
-	  Say Y here if you want to support for BOE TV101WUM WUXGA PANEL
-	  DSI Video Mode panel
+	  Say Y here if you want to support for BOE TV101WUM and AUO KD101N80
+	  45NA WUXGA PANEL DSI Video Mode panel
 
 config DRM_PANEL_LVDS
 	tristate "Generic LVDS panel driver"

drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c

@@ -34,6 +34,7 @@ struct panel_desc {
 	enum mipi_dsi_pixel_format format;
 	const struct panel_init_cmd *init_cmds;
 	unsigned int lanes;
+	bool discharge_on_disable;
 };
 
 struct boe_panel {
@@ -367,6 +368,15 @@ static const struct panel_init_cmd boe_init_cmd[] = {
 	{},
 };
 
+static const struct panel_init_cmd auo_kd101n80_45na_init_cmd[] = {
+	_INIT_DELAY_CMD(24),
+	_INIT_DCS_CMD(0x11),
+	_INIT_DELAY_CMD(120),
+	_INIT_DCS_CMD(0x29),
+	_INIT_DELAY_CMD(120),
+	{},
+};
+
 static inline struct boe_panel *to_boe_panel(struct drm_panel *panel)
 {
 	return container_of(panel, struct boe_panel, base);
@@ -444,12 +454,22 @@ static int boe_panel_unprepare(struct drm_panel *panel)
 	}
 
 	msleep(150);
-	gpiod_set_value(boe->enable_gpio, 0);
-	usleep_range(500, 1000);
-	regulator_disable(boe->avee);
-	regulator_disable(boe->avdd);
-	usleep_range(5000, 7000);
-	regulator_disable(boe->pp1800);
+
+	if (boe->desc->discharge_on_disable) {
+		regulator_disable(boe->avee);
+		regulator_disable(boe->avdd);
+		usleep_range(5000, 7000);
+		gpiod_set_value(boe->enable_gpio, 0);
+		usleep_range(5000, 7000);
+		regulator_disable(boe->pp1800);
+	} else {
+		gpiod_set_value(boe->enable_gpio, 0);
+		usleep_range(500, 1000);
+		regulator_disable(boe->avee);
+		regulator_disable(boe->avdd);
+		usleep_range(5000, 7000);
+		regulator_disable(boe->pp1800);
+	}
 
 	boe->prepared = false;
 
@@ -542,6 +562,35 @@ static const struct panel_desc boe_tv101wum_nl6_desc = {
 	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
 		      MIPI_DSI_MODE_LPM,
 	.init_cmds = boe_init_cmd,
+	.discharge_on_disable = false,
+};
+
+static const struct drm_display_mode auo_kd101n80_45na_default_mode = {
+	.clock = 157000,
+	.hdisplay = 1200,
+	.hsync_start = 1200 + 80,
+	.hsync_end = 1200 + 80 + 24,
+	.htotal = 1200 + 80 + 24 + 36,
+	.vdisplay = 1920,
+	.vsync_start = 1920 + 16,
+	.vsync_end = 1920 + 16 + 4,
+	.vtotal = 1920 + 16 + 4 + 16,
+	.vrefresh = 60,
+};
+
+static const struct panel_desc auo_kd101n80_45na_desc = {
+	.modes = &auo_kd101n80_45na_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 = auo_kd101n80_45na_init_cmd,
+	.discharge_on_disable = true,
 };
 
 static int boe_panel_get_modes(struct drm_panel *panel,
@@ -673,6 +722,9 @@ static const struct of_device_id boe_of_match[] = {
 	{ .compatible = "boe,tv101wum-nl6",
 	  .data = &boe_tv101wum_nl6_desc
 	},
+	{ .compatible = "auo,kd101n80-45na",
+	  .data = &auo_kd101n80_45na_desc
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, boe_of_match);