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drm/mipi-dsi: use correct return type for the DSC functions

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[ Upstream commit de1c705c50 ]

The functions mipi_dsi_compression_mode() and
mipi_dsi_picture_parameter_set() return 0-or-error rather than a buffer
size. Follow example of other similar MIPI DSI functions and use int
return type instead of size_t.

Fixes: f4dea1aaa9 ("drm/dsi: add helpers for DSI compression mode and PPS packets")
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408-lg-sw43408-panel-v5-2-4e092da22991@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dmitry Baryshkov 2024-04-08 02:53:51 +03:00 committed by Greg Kroah-Hartman
parent d7733cad71
commit b8e506a251
2 changed files with 6 additions and 6 deletions
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6
drivers/gpu/drm/drm_mipi_dsi.c
View File

@ -654,7 +654,7 @@ EXPORT_SYMBOL(mipi_dsi_set_maximum_return_packet_size);
* *
* Return: 0 on success or a negative error code on failure. * Return: 0 on success or a negative error code on failure.
*/ */
ssize_t mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable) int mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable)
{ {
/* Note: Needs updating for non-default PPS or algorithm */ /* Note: Needs updating for non-default PPS or algorithm */
u8 tx[2] = { enable << 0, 0 }; u8 tx[2] = { enable << 0, 0 };
@ -679,8 +679,8 @@ EXPORT_SYMBOL(mipi_dsi_compression_mode);
* *
* Return: 0 on success or a negative error code on failure. * Return: 0 on success or a negative error code on failure.
*/ */
ssize_t mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi, int mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi,
const struct drm_dsc_picture_parameter_set *pps) const struct drm_dsc_picture_parameter_set *pps)
{ {
struct mipi_dsi_msg msg = { struct mipi_dsi_msg msg = {
.channel = dsi->channel, .channel = dsi->channel,

6
include/drm/drm_mipi_dsi.h
View File

@ -241,9 +241,9 @@ int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi);
int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi); int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi);
int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi, int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
u16 value); u16 value);
ssize_t mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable); int mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable);
ssize_t mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi, int mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi,
const struct drm_dsc_picture_parameter_set *pps); const struct drm_dsc_picture_parameter_set *pps);
ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload, ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload,
size_t size); size_t size);