linux-kernel - [PATCH v1 2/2] drm/panel: boe-th101mb31ig002: Modify Starry panel timing

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Message-Id: <20240915080830.11318-3-lvzhaoxiong@huaqin.corp-partner.google.com>
Date: Sun, 15 Sep 2024 16:08:30 +0800
From: Zhaoxiong Lv <lvzhaoxiong@...qin.corp-partner.google.com>
To: neil.armstrong@...aro.org,
	quic_jesszhan@...cinc.com,
	sam@...nborg.org,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	simona@...ll.ch,
	dianders@...omium.org,
	hsinyi@...gle.com,
	awarnecke002@...mail.com,
	dmitry.baryshkov@...aro.org
Cc: dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Zhaoxiong Lv <lvzhaoxiong@...qin.corp-partner.google.com>
Subject: [PATCH v1 2/2] drm/panel: boe-th101mb31ig002: Modify Starry panel timing

In order to meet the timing, remove the delay between "backlight off"
and "display off", and reduce the delay between "display_off" and
"enter_sleep"

Removing variables: display_off_to_enter_sleep_delay_ms

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@...qin.corp-partner.google.com>
---
 drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
index 0b87f1e6ecae..c2d0ec199829 100644
--- a/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
+++ b/drivers/gpu/drm/panel/panel-boe-th101mb31ig002-28a.c
@@ -29,7 +29,7 @@ struct panel_desc {
 	bool lp11_before_reset;
 	unsigned int vcioo_to_lp11_delay_ms;
 	unsigned int lp11_to_reset_delay_ms;
-	unsigned int backlight_off_to_display_off_delay_ms;
+	unsigned int display_off_to_enter_sleep_delay_ms;
 	unsigned int enter_sleep_to_reset_down_delay_ms;
 	unsigned int power_off_delay_ms;
 };
@@ -184,12 +184,10 @@ static int boe_th101mb31ig002_disable(struct drm_panel *panel)
 						      panel);
 	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
 
-	if (ctx->desc->backlight_off_to_display_off_delay_ms)
-		mipi_dsi_msleep(&dsi_ctx, ctx->desc->backlight_off_to_display_off_delay_ms);
-
 	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
 
-	mipi_dsi_msleep(&dsi_ctx, 120);
+	if (ctx->desc->display_off_to_enter_sleep_delay_ms)
+		mipi_dsi_msleep(&dsi_ctx, ctx->desc->display_off_to_enter_sleep_delay_ms);
 
 	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
 
@@ -275,6 +273,7 @@ static const struct panel_desc boe_th101mb31ig002_desc = {
 			  MIPI_DSI_MODE_NO_EOT_PACKET |
 			  MIPI_DSI_MODE_LPM,
 	.init = boe_th101mb31ig002_enable,
+	.display_off_to_enter_sleep_delay_ms = 120,
 };
 
 static const struct drm_display_mode starry_er88577_default_mode = {
@@ -302,7 +301,7 @@ static const struct panel_desc starry_er88577_desc = {
 	.lp11_before_reset = true,
 	.vcioo_to_lp11_delay_ms = 5,
 	.lp11_to_reset_delay_ms = 50,
-	.backlight_off_to_display_off_delay_ms = 100,
+	.display_off_to_enter_sleep_delay_ms = 50,
 	.enter_sleep_to_reset_down_delay_ms = 100,
 	.power_off_delay_ms = 1000,
 };
-- 
2.17.1