Revert "drm/mipi-dsi: use correct return type for the DSC functions"
This reverts commit 74a9b48bc53c85881c88370fbfc12c728b08a7f3 which is
commit de1c705c50326acaceaf1f02bc5bf6f267c572bd upstream.
It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.
Bug: 161946584
Change-Id: Ifeda5fca1bf9a45e7264ab123d0a69210bb506cc
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index 7b628f4..d98b08c 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -640,7 +640,7 @@ EXPORT_SYMBOL(mipi_dsi_set_maximum_return_packet_size);
*
* Return: 0 on success or a negative error code on failure.
*/
-int mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable)
+ssize_t mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable)
{
/* Note: Needs updating for non-default PPS or algorithm */
u8 tx[2] = { enable << 0, 0 };
@@ -665,8 +665,8 @@ EXPORT_SYMBOL(mipi_dsi_compression_mode);
*
* Return: 0 on success or a negative error code on failure.
*/
-int mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi,
- const struct drm_dsc_picture_parameter_set *pps)
+ssize_t mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi,
+ const struct drm_dsc_picture_parameter_set *pps)
{
struct mipi_dsi_msg msg = {
.channel = dsi->channel,
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 47ab2809..d9af720 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -238,9 +238,9 @@ int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi);
int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi);
int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
u16 value);
-int mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable);
-int mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi,
- const struct drm_dsc_picture_parameter_set *pps);
+ssize_t mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable);
+ssize_t mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi,
+ const struct drm_dsc_picture_parameter_set *pps);
ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload,
size_t size);
