drm/dsi: Make mipi_dsi_dcs_write() return ssize_t
This function returns the value of the struct mipi_dsi_host_ops'
.transfer() so make sure the return types are consistent.
Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index e633df2..6d2fd20 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -205,8 +205,8 @@
* @data: pointer to the command followed by parameters
* @len: length of @data
*/
-int mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, unsigned int channel,
- const void *data, size_t len)
+ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, unsigned int channel,
+ const void *data, size_t len)
{
const struct mipi_dsi_host_ops *ops = dsi->host->ops;
struct mipi_dsi_msg msg = {
diff --git a/drivers/gpu/drm/panel/panel-s6e8aa0.c b/drivers/gpu/drm/panel/panel-s6e8aa0.c
index 06e57a2..beb4349 100644
--- a/drivers/gpu/drm/panel/panel-s6e8aa0.c
+++ b/drivers/gpu/drm/panel/panel-s6e8aa0.c
@@ -133,14 +133,14 @@
static void s6e8aa0_dcs_write(struct s6e8aa0 *ctx, const void *data, size_t len)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
- int ret;
+ ssize_t ret;
if (ctx->error < 0)
return;
ret = mipi_dsi_dcs_write(dsi, dsi->channel, data, len);
if (ret < 0) {
- dev_err(ctx->dev, "error %d writing dcs seq: %*ph\n", ret, len,
+ dev_err(ctx->dev, "error %zd writing dcs seq: %*ph\n", ret, len,
data);
ctx->error = ret;
}