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Message-ID: <20240902071019.351158-1-tejasvipin76@gmail.com>
Date: Mon, 2 Sep 2024 12:40:19 +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,
daniel@...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] drm/panel: samsung-s6e3fa7: transition to mipi_dsi wrapped functions
Changes the samsung-s6e3fa7 panel to use multi style functions for
improved error handling.
Signed-off-by: Tejas Vipin <tejasvipin76@...il.com>
---
drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c | 71 ++++++-------------
1 file changed, 21 insertions(+), 50 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c b/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c
index 10bc8fb5f1f9..27a059b55ae5 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c
@@ -38,57 +38,38 @@ static void s6e3fa7_panel_reset(struct s6e3fa7_panel *ctx)
usleep_range(10000, 11000);
}
-static int s6e3fa7_panel_on(struct s6e3fa7_panel *ctx)
+static int s6e3fa7_panel_on(struct mipi_dsi_device *dsi)
{
- struct mipi_dsi_device *dsi = ctx->dsi;
- struct device *dev = &dsi->dev;
- int ret;
+ struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
- 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(120);
+ mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+ mipi_dsi_msleep(&dsi_ctx, 120);
+ mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
- 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_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf4,
+ 0xbb, 0x23, 0x19, 0x3a, 0x9f, 0x0f, 0x09, 0xc0,
+ 0x00, 0xb4, 0x37, 0x70, 0x79, 0x69);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
- mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a);
- mipi_dsi_dcs_write_seq(dsi, 0xf4,
- 0xbb, 0x23, 0x19, 0x3a, 0x9f, 0x0f, 0x09, 0xc0,
- 0x00, 0xb4, 0x37, 0x70, 0x79, 0x69);
- mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5);
- mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
+ 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 set display on: %d\n", ret);
- return ret;
- }
-
- return 0;
+ return dsi_ctx.accum_err;
}
static int s6e3fa7_panel_prepare(struct drm_panel *panel)
{
struct s6e3fa7_panel *ctx = to_s6e3fa7_panel(panel);
- struct device *dev = &ctx->dsi->dev;
int ret;
s6e3fa7_panel_reset(ctx);
- ret = s6e3fa7_panel_on(ctx);
- if (ret < 0) {
- dev_err(dev, "Failed to initialize panel: %d\n", ret);
+ ret = s6e3fa7_panel_on(ctx->dsi);
+ if (ret < 0)
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
- return ret;
- }
- return 0;
+ return ret;
}
static int s6e3fa7_panel_unprepare(struct drm_panel *panel)
@@ -104,23 +85,13 @@ static int s6e3fa7_panel_disable(struct drm_panel *panel)
{
struct s6e3fa7_panel *ctx = to_s6e3fa7_panel(panel);
struct mipi_dsi_device *dsi = ctx->dsi;
- struct device *dev = &dsi->dev;
- int ret;
-
- ret = mipi_dsi_dcs_set_display_off(dsi);
- if (ret < 0) {
- dev_err(dev, "Failed to set display off: %d\n", ret);
- return ret;
- }
+ struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
- 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(120);
+ mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+ mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
+ mipi_dsi_msleep(&dsi_ctx, 120);
- return 0;
+ return dsi_ctx.accum_err;
}
static const struct drm_display_mode s6e3fa7_panel_mode = {
--
2.46.0
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