From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Douglas Anderson <dianders@chromium.org>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>,
Daniel Vetter <daniel@ffwll.ch>,
Neil Armstrong <neil.armstrong@linaro.org>,
Jessica Zhang <quic_jesszhan@quicinc.com>,
Sam Ravnborg <sam@ravnborg.org>,
Sumit Semwal <sumit.semwal@linaro.org>,
Caleb Connolly <caleb.connolly@linaro.org>,
Marijn Suijten <marijn.suijten@somainline.org>,
Vinod Koul <vkoul@kernel.org>
Cc: Cong Yang <yangcong5@huaqin.corp-partner.google.com>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Subject: [PATCH v2 1/7] drm/panel: lg-sw43408: add missing error handling
Date: Sun, 12 May 2024 02:00:18 +0300 [thread overview]
Message-ID: <20240512-dsi-panels-upd-api-v2-1-e31ca14d102e@linaro.org> (raw)
In-Reply-To: <20240512-dsi-panels-upd-api-v2-0-e31ca14d102e@linaro.org>
Add missing error handling for the mipi_dsi_ functions that actually
return error code instead of silently ignoring it.
Fixes: 069a6c0e94f9 ("drm: panel: Add LG sw43408 panel driver")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
drivers/gpu/drm/panel/panel-lg-sw43408.c | 33 ++++++++++++++++++++++++++------
1 file changed, 27 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-lg-sw43408.c b/drivers/gpu/drm/panel/panel-lg-sw43408.c
index 2b3a73696dce..67a98ac508f8 100644
--- a/drivers/gpu/drm/panel/panel-lg-sw43408.c
+++ b/drivers/gpu/drm/panel/panel-lg-sw43408.c
@@ -62,16 +62,25 @@ static int sw43408_program(struct drm_panel *panel)
{
struct sw43408_panel *ctx = to_panel_info(panel);
struct drm_dsc_picture_parameter_set pps;
+ int ret;
mipi_dsi_dcs_write_seq(ctx->link, MIPI_DCS_SET_GAMMA_CURVE, 0x02);
- mipi_dsi_dcs_set_tear_on(ctx->link, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+ ret = mipi_dsi_dcs_set_tear_on(ctx->link, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+ if (ret < 0) {
+ dev_err(panel->dev, "Failed to set tearing: %d\n", ret);
+ return ret;
+ }
mipi_dsi_dcs_write_seq(ctx->link, 0x53, 0x0c, 0x30);
mipi_dsi_dcs_write_seq(ctx->link, 0x55, 0x00, 0x70, 0xdf, 0x00, 0x70, 0xdf);
mipi_dsi_dcs_write_seq(ctx->link, 0xf7, 0x01, 0x49, 0x0c);
- mipi_dsi_dcs_exit_sleep_mode(ctx->link);
+ ret = mipi_dsi_dcs_exit_sleep_mode(ctx->link);
+ if (ret < 0) {
+ dev_err(panel->dev, "Failed to exit sleep mode: %d\n", ret);
+ return ret;
+ }
msleep(135);
@@ -97,14 +106,22 @@ static int sw43408_program(struct drm_panel *panel)
mipi_dsi_dcs_write_seq(ctx->link, 0x55, 0x04, 0x61, 0xdb, 0x04, 0x70, 0xdb);
mipi_dsi_dcs_write_seq(ctx->link, 0xb0, 0xca);
- mipi_dsi_dcs_set_display_on(ctx->link);
+ ret = mipi_dsi_dcs_set_display_on(ctx->link);
+ if (ret < 0) {
+ dev_err(panel->dev, "Failed to set display on: %d\n", ret);
+ return ret;
+ }
msleep(50);
ctx->link->mode_flags &= ~MIPI_DSI_MODE_LPM;
drm_dsc_pps_payload_pack(&pps, ctx->link->dsc);
- mipi_dsi_picture_parameter_set(ctx->link, &pps);
+ ret = mipi_dsi_picture_parameter_set(ctx->link, &pps);
+ if (ret < 0) {
+ dev_err(panel->dev, "Failed to set PPS: %d\n", ret);
+ return ret;
+ }
ctx->link->mode_flags |= MIPI_DSI_MODE_LPM;
@@ -113,8 +130,12 @@ static int sw43408_program(struct drm_panel *panel)
* PPS 1 if pps_identifier is 0
* PPS 2 if pps_identifier is 1
*/
- mipi_dsi_compression_mode_ext(ctx->link, true,
- MIPI_DSI_COMPRESSION_DSC, 1);
+ ret = mipi_dsi_compression_mode_ext(ctx->link, true,
+ MIPI_DSI_COMPRESSION_DSC, 1);
+ if (ret < 0) {
+ dev_err(panel->dev, "Failed to set compression mode: %d\n", ret);
+ return ret;
+ }
return 0;
}
--
2.39.2
next prev parent reply other threads:[~2024-05-11 23:00 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-11 23:00 [PATCH v2 0/7] drm/mipi-dsi: simplify MIPI DSI init/cleanup even more Dmitry Baryshkov
2024-05-11 23:00 ` Dmitry Baryshkov [this message]
2024-05-11 23:00 ` [PATCH v2 2/7] drm/mipi-dsi: wrap more functions for streamline handling Dmitry Baryshkov
2024-05-13 16:49 ` Doug Anderson
2024-05-17 19:32 ` Neil Armstrong
2024-05-11 23:00 ` [PATCH v2 3/7] drm/panel: boe-tv101wum-nl6: use wrapped MIPI DCS functions Dmitry Baryshkov
2024-05-11 23:00 ` [PATCH v2 4/7] drm/panel: ilitek-ili9882t: " Dmitry Baryshkov
2024-05-11 23:00 ` [PATCH v2 5/7] drm/panel: innolux-p079zca: use mipi_dsi_dcs_nop_multi() Dmitry Baryshkov
2024-05-11 23:00 ` [PATCH v2 6/7] drm/panel: novatek-nt36672e: use wrapped MIPI DCS functions Dmitry Baryshkov
2024-05-11 23:00 ` [PATCH v2 7/7] drm/panel: lg-sw43408: use new streamlined MIPI DSI API Dmitry Baryshkov
2024-05-17 19:39 ` [PATCH v2 0/7] drm/mipi-dsi: simplify MIPI DSI init/cleanup even more Neil Armstrong
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240512-dsi-panels-upd-api-v2-1-e31ca14d102e@linaro.org \
--to=dmitry.baryshkov@linaro.org \
--cc=airlied@gmail.com \
--cc=caleb.connolly@linaro.org \
--cc=daniel@ffwll.ch \
--cc=dianders@chromium.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maarten.lankhorst@linux.intel.com \
--cc=marijn.suijten@somainline.org \
--cc=mripard@kernel.org \
--cc=neil.armstrong@linaro.org \
--cc=quic_jesszhan@quicinc.com \
--cc=sam@ravnborg.org \
--cc=sumit.semwal@linaro.org \
--cc=tzimmermann@suse.de \
--cc=vkoul@kernel.org \
--cc=yangcong5@huaqin.corp-partner.google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).