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Message-ID: <20240628182428.171031-2-tejasvipin76@gmail.com>
Date: Fri, 28 Jun 2024 23:54:27 +0530
From: Tejas Vipin <tejasvipin76@...il.com>
To: neil.armstrong@...aro.org,
quic_jesszhan@...cinc.com
Cc: dianders@...omium.org,
maarten.lankhorst@...ux.intel.com,
mripard@...nel.org,
tzimmermann@...e.de,
airlied@...il.com,
daniel@...ll.ch,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org,
Tejas Vipin <tejasvipin76@...il.com>
Subject: [PATCH 1/2] drm/mipi-dsi: add more multi functions for better error handling
Add more functions that can benefit from being multi style, which
reduces code size in panels where they appear.
Signed-off-by: Tejas Vipin <tejasvipin76@...il.com>
---
drivers/gpu/drm/drm_mipi_dsi.c | 164 +++++++++++++++++++++++++++++++++
include/drm/drm_mipi_dsi.h | 10 ++
2 files changed, 174 insertions(+)
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index a471c46f5ca6..3f7fe734b684 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -1639,6 +1639,170 @@ void mipi_dsi_dcs_set_tear_on_multi(struct mipi_dsi_multi_context *ctx,
}
EXPORT_SYMBOL(mipi_dsi_dcs_set_tear_on_multi);
+/**
+ * mipi_dsi_turn_on_peripheral_multi() - sends a Turn On Peripheral command
+ * @ctx: Context for multiple DSI transactions
+ *
+ * Like mipi_dsi_turn_on_peripheral() but deals with errors in a way that
+ * makes it convenient to make several calls in a row.
+ */
+void mipi_dsi_turn_on_peripheral_multi(struct mipi_dsi_multi_context *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ ssize_t ret;
+
+ if (ctx->accum_err)
+ return;
+
+ ret = mipi_dsi_turn_on_peripheral(dsi);
+ if (ret < 0) {
+ ctx->accum_err = ret;
+ dev_err(dev, "Failed to turn on peripheral: %d\n",
+ ctx->accum_err);
+ }
+}
+EXPORT_SYMBOL(mipi_dsi_turn_on_peripheral_multi);
+
+/**
+ * mipi_dsi_dcs_soft_reset_multi() - perform a software reset of the display module
+ * @ctx: Context for multiple DSI transactions
+ *
+ * Like mipi_dsi_dcs_soft_reset() but deals with errors in a way that
+ * makes it convenient to make several calls in a row.
+ */
+void mipi_dsi_dcs_soft_reset_multi(struct mipi_dsi_multi_context *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ ssize_t ret;
+
+ if (ctx->accum_err)
+ return;
+
+ ret = mipi_dsi_dcs_soft_reset(dsi);
+ if (ret < 0) {
+ ctx->accum_err = ret;
+ dev_err(dev, "Failed to mipi_dsi_dcs_soft_reset: %d\n",
+ ctx->accum_err);
+ }
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_soft_reset_multi);
+
+/**
+ * mipi_dsi_dcs_set_display_brightness_multi() - sets the brightness value of
+ * the display
+ * @ctx: Context for multiple DSI transactions
+ * @brightness: brightness value
+ *
+ * Like mipi_dsi_dcs_set_display_brightness() but deals with errors in a way that
+ * makes it convenient to make several calls in a row.
+ */
+void mipi_dsi_dcs_set_display_brightness_multi(struct mipi_dsi_multi_context *ctx,
+ u16 brightness)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ ssize_t ret;
+
+ if (ctx->accum_err)
+ return;
+
+ ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness);
+ if (ret < 0) {
+ ctx->accum_err = ret;
+ dev_err(dev, "Failed to write display brightness: %d\n",
+ ctx->accum_err);
+ }
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_set_display_brightness_multi);
+
+/**
+ * mipi_dsi_dcs_set_pixel_format_multi() - sets the pixel format for the RGB image
+ * data used by the interface
+ * @ctx: Context for multiple DSI transactions
+ * @format: pixel format
+ *
+ * Like mipi_dsi_dcs_set_pixel_format() but deals with errors in a way that
+ * makes it convenient to make several calls in a row.
+ */
+void mipi_dsi_dcs_set_pixel_format_multi(struct mipi_dsi_multi_context *ctx,
+ u8 format)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ ssize_t ret;
+
+ if (ctx->accum_err)
+ return;
+
+ ret = mipi_dsi_dcs_set_pixel_format(dsi, format);
+ if (ret < 0) {
+ ctx->accum_err = ret;
+ dev_err(dev, "Failed to set pixel format: %d\n",
+ ctx->accum_err);
+ }
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_set_pixel_format_multi);
+
+/**
+ * mipi_dsi_dcs_set_column_address_multi() - define the column extent of the
+ * frame memory accessed by the host processor
+ * @ctx: Context for multiple DSI transactions
+ * @start: first column of frame memory
+ * @end: last column of frame memory
+ *
+ * Like mipi_dsi_dcs_set_column_address() but deals with errors in a way that
+ * makes it convenient to make several calls in a row.
+ */
+void mipi_dsi_dcs_set_column_address_multi(struct mipi_dsi_multi_context *ctx,
+ u16 start, u16 end)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ ssize_t ret;
+
+ if (ctx->accum_err)
+ return;
+
+ ret = mipi_dsi_dcs_set_column_address(dsi, start, end);
+ if (ret < 0) {
+ ctx->accum_err = ret;
+ dev_err(dev, "Failed to set column address: %d\n",
+ ctx->accum_err);
+ }
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_set_column_address_multi);
+
+/**
+ * mipi_dsi_dcs_set_page_address_multi() - define the column extent of the
+ * frame memory accessed by the host processor
+ * @ctx: Context for multiple DSI transactions
+ * @start: first column of frame memory
+ * @end: last column of frame memory
+ *
+ * Like mipi_dsi_dcs_set_page_address() but deals with errors in a way that
+ * makes it convenient to make several calls in a row.
+ */
+void mipi_dsi_dcs_set_page_address_multi(struct mipi_dsi_multi_context *ctx,
+ u16 start, u16 end)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ ssize_t ret;
+
+ if (ctx->accum_err)
+ return;
+
+ ret = mipi_dsi_dcs_set_page_address(dsi, start, end);
+ if (ret < 0) {
+ ctx->accum_err = ret;
+ dev_err(dev, "Failed to set page address: %d\n",
+ ctx->accum_err);
+ }
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_set_page_address_multi);
+
static int mipi_dsi_drv_probe(struct device *dev)
{
struct mipi_dsi_driver *drv = to_mipi_dsi_driver(dev->driver);
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 71d121aeef24..203b5d53d58f 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -358,6 +358,16 @@ void mipi_dsi_dcs_set_display_off_multi(struct mipi_dsi_multi_context *ctx);
void mipi_dsi_dcs_set_display_on_multi(struct mipi_dsi_multi_context *ctx);
void mipi_dsi_dcs_set_tear_on_multi(struct mipi_dsi_multi_context *ctx,
enum mipi_dsi_dcs_tear_mode mode);
+void mipi_dsi_turn_on_peripheral_multi(struct mipi_dsi_multi_context *ctx);
+void mipi_dsi_dcs_soft_reset_multi(struct mipi_dsi_multi_context *ctx);
+void mipi_dsi_dcs_set_display_brightness_multi(struct mipi_dsi_multi_context *ctx,
+ u16 brightness);
+void mipi_dsi_dcs_set_pixel_format_multi(struct mipi_dsi_multi_context *ctx,
+ u8 format);
+void mipi_dsi_dcs_set_column_address_multi(struct mipi_dsi_multi_context *ctx,
+ u16 start, u16 end);
+void mipi_dsi_dcs_set_page_address_multi(struct mipi_dsi_multi_context *ctx,
+ u16 start, u16 end);
/**
* mipi_dsi_generic_write_seq - transmit data using a generic write packet
--
2.45.2
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