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Message-ID: <20250220045721.145905-1-tejasvipin76@gmail.com>
Date: Thu, 20 Feb 2025 10:27:21 +0530
From: Tejas Vipin <tejasvipin76@...il.com>
To: neil.armstrong@...aro.org,
maarten.lankhorst@...ux.intel.com,
mripard@...nel.org,
tzimmermann@...e.de,
airlied@...il.com,
simona@...ll.ch
Cc: quic_jesszhan@...cinc.com,
dianders@...omium.org,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org,
Tejas Vipin <tejasvipin76@...il.com>
Subject: [PATCH v2] drm/mipi-dsi: extend "multi" functions and use them in sony-td4353-jdi
Removes mipi_dsi_dcs_set_tear_off and replaces it with a
multi version as after replacing it in sony-td4353-jdi, it doesn't
appear anywhere else. sony-td4353-jdi is converted to use multi style
functions, including mipi_dsi_dcs_set_tear_off_multi.
Signed-off-by: Tejas Vipin <tejasvipin76@...il.com>
---
Changes in v2:
- Squashed panel changes and mipi_dsi changes into 1 patch
Link to v1: https://lore.kernel.org/all/20250214172958.81258-1-tejasvipin76@gmail.com/
---
drivers/gpu/drm/drm_mipi_dsi.c | 42 +++----
drivers/gpu/drm/panel/panel-sony-td4353-jdi.c | 107 ++++--------------
include/drm/drm_mipi_dsi.h | 2 +-
3 files changed, 47 insertions(+), 104 deletions(-)
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index 5e5c5f84daac..2e148753ea97 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -1265,25 +1265,6 @@ int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
}
EXPORT_SYMBOL(mipi_dsi_dcs_set_page_address);
-/**
- * mipi_dsi_dcs_set_tear_off() - turn off the display module's Tearing Effect
- * output signal on the TE signal line
- * @dsi: DSI peripheral device
- *
- * Return: 0 on success or a negative error code on failure
- */
-int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi)
-{
- ssize_t err;
-
- err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_TEAR_OFF, NULL, 0);
- if (err < 0)
- return err;
-
- return 0;
-}
-EXPORT_SYMBOL(mipi_dsi_dcs_set_tear_off);
-
/**
* mipi_dsi_dcs_set_tear_on() - turn on the display module's Tearing Effect
* output signal on the TE signal line.
@@ -1713,6 +1694,29 @@ void mipi_dsi_turn_on_peripheral_multi(struct mipi_dsi_multi_context *ctx)
}
EXPORT_SYMBOL(mipi_dsi_turn_on_peripheral_multi);
+/**
+ * mipi_dsi_dcs_set_tear_off_multi() - turn off the display module's Tearing Effect
+ * output signal on the TE signal line
+ * @ctx: Context for multiple DSI transactions
+ */
+void mipi_dsi_dcs_set_tear_off_multi(struct mipi_dsi_multi_context *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ ssize_t err;
+
+ if (ctx->accum_err)
+ return;
+
+ err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_TEAR_OFF, NULL, 0);
+ if (err < 0) {
+ ctx->accum_err = err;
+ dev_err(dev, "Failed to set tear off: %d\n",
+ ctx->accum_err);
+ }
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_set_tear_off_multi);
+
/**
* mipi_dsi_dcs_soft_reset_multi() - perform a software reset of the display module
* @ctx: Context for multiple DSI transactions
diff --git a/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c b/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
index 472195d4bbbe..97f4bb4e1029 100644
--- a/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
+++ b/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
@@ -47,93 +47,40 @@ static inline struct sony_td4353_jdi *to_sony_td4353_jdi(struct drm_panel *panel
static int sony_td4353_jdi_on(struct sony_td4353_jdi *ctx)
{
struct mipi_dsi_device *dsi = ctx->dsi;
- struct device *dev = &dsi->dev;
- int ret;
+ struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
- ret = mipi_dsi_dcs_set_column_address(dsi, 0x0000, 1080 - 1);
- if (ret < 0) {
- dev_err(dev, "Failed to set column address: %d\n", ret);
- return ret;
- }
-
- ret = mipi_dsi_dcs_set_page_address(dsi, 0x0000, 2160 - 1);
- if (ret < 0) {
- dev_err(dev, "Failed to set page address: %d\n", ret);
- return ret;
- }
-
- ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0);
- if (ret < 0) {
- dev_err(dev, "Failed to set tear scanline: %d\n", ret);
- return ret;
- }
-
- ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
- if (ret < 0) {
- dev_err(dev, "Failed to set tear on: %d\n", ret);
- return ret;
- }
+ mipi_dsi_dcs_set_column_address_multi(&dsi_ctx, 0x0000, 1080 - 1);
+ mipi_dsi_dcs_set_page_address_multi(&dsi_ctx, 0x0000, 2160 - 1);
+ mipi_dsi_dcs_set_tear_scanline_multi(&dsi_ctx, 0);
+ mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
- mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
-
- ret = mipi_dsi_dcs_set_pixel_format(dsi, 0x77);
- if (ret < 0) {
- dev_err(dev, "Failed to set pixel format: %d\n", ret);
- return ret;
- }
-
- mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_PARTIAL_ROWS,
- 0x00, 0x00, 0x08, 0x6f);
-
- ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
- return ret;
- }
- msleep(70);
+ mipi_dsi_dcs_set_pixel_format_multi(&dsi_ctx, 0x77);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_SET_PARTIAL_ROWS,
+ 0x00, 0x00, 0x08, 0x6f);
- mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_MEMORY_START);
+ mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+ mipi_dsi_msleep(&dsi_ctx, 70);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_MEMORY_START);
+ mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
- ret = mipi_dsi_dcs_set_display_on(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to turn display on: %d\n", ret);
- return ret;
- }
-
- return 0;
+ return dsi_ctx.accum_err;
}
-static int sony_td4353_jdi_off(struct sony_td4353_jdi *ctx)
+static void sony_td4353_jdi_off(struct sony_td4353_jdi *ctx)
{
struct mipi_dsi_device *dsi = ctx->dsi;
- struct device *dev = &dsi->dev;
- int ret;
+ struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
- ret = mipi_dsi_dcs_set_display_off(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to set display off: %d\n", ret);
- return ret;
- }
- msleep(22);
-
- ret = mipi_dsi_dcs_set_tear_off(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to set tear off: %d\n", ret);
- return ret;
- }
-
- ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
- return ret;
- }
- msleep(80);
-
- return 0;
+ mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+ mipi_dsi_msleep(&dsi_ctx, 22);
+ mipi_dsi_dcs_set_tear_off_multi(&dsi_ctx);
+ mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
+ mipi_dsi_msleep(&dsi_ctx, 80);
}
static void sony_td4353_assert_reset_gpios(struct sony_td4353_jdi *ctx, int mode)
@@ -146,14 +93,11 @@ static void sony_td4353_assert_reset_gpios(struct sony_td4353_jdi *ctx, int mode
static int sony_td4353_jdi_prepare(struct drm_panel *panel)
{
struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
- struct device *dev = &ctx->dsi->dev;
int ret;
ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
- if (ret < 0) {
- dev_err(dev, "Failed to enable regulators: %d\n", ret);
+ if (ret < 0)
return ret;
- }
msleep(100);
@@ -161,7 +105,6 @@ static int sony_td4353_jdi_prepare(struct drm_panel *panel)
ret = sony_td4353_jdi_on(ctx);
if (ret < 0) {
- dev_err(dev, "Failed to power on panel: %d\n", ret);
sony_td4353_assert_reset_gpios(ctx, 0);
regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
return ret;
@@ -173,12 +116,8 @@ static int sony_td4353_jdi_prepare(struct drm_panel *panel)
static int sony_td4353_jdi_unprepare(struct drm_panel *panel)
{
struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
- struct device *dev = &ctx->dsi->dev;
- int ret;
- ret = sony_td4353_jdi_off(ctx);
- if (ret < 0)
- dev_err(dev, "Failed to power off panel: %d\n", ret);
+ sony_td4353_jdi_off(ctx);
sony_td4353_assert_reset_gpios(ctx, 0);
regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 94400a78031f..bd40a443385c 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -346,7 +346,6 @@ int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
u16 end);
int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
u16 end);
-int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
enum mipi_dsi_dcs_tear_mode mode);
int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format);
@@ -379,6 +378,7 @@ void mipi_dsi_dcs_set_page_address_multi(struct mipi_dsi_multi_context *ctx,
u16 start, u16 end);
void mipi_dsi_dcs_set_tear_scanline_multi(struct mipi_dsi_multi_context *ctx,
u16 scanline);
+void mipi_dsi_dcs_set_tear_off_multi(struct mipi_dsi_multi_context *ctx);
/**
* mipi_dsi_generic_write_seq - transmit data using a generic write packet
--
2.48.1
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