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drm/dsi: Make mipi_dsi_dcs_write() return ssize_t

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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>
This commit is contained in:
Thierry Reding 2014-07-21 12:22:26 +02:00
parent 102932b0e4
commit 371c359f83
3 changed files with 6 additions and 6 deletions
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4
drivers/gpu/drm/drm_mipi_dsi.c
View File

@ -205,8 +205,8 @@ EXPORT_SYMBOL(mipi_dsi_detach);
* @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 = {

4
drivers/gpu/drm/panel/panel-s6e8aa0.c
View File

@ -133,14 +133,14 @@ static int s6e8aa0_clear_error(struct s6e8aa0 *ctx)
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;
}

4
include/drm/drm_mipi_dsi.h
View File

@ -127,8 +127,8 @@ struct mipi_dsi_device {
int mipi_dsi_attach(struct mipi_dsi_device *dsi);
int mipi_dsi_detach(struct mipi_dsi_device *dsi);
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);
ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, unsigned int channel,
u8 cmd, void *data, size_t len);