Commit 371c359f authored by Thierry Reding's avatar Thierry Reding
Browse files

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: default avatarAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 102932b0

drivers/gpu/drm/drm_mipi_dsi.c

+2 −2
Original line number Diff line number Diff line
@@ -205,7 +205,7 @@ 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,

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;

drivers/gpu/drm/panel/panel-s6e8aa0.c

+2 −2
Original line number Diff line number Diff line
@@ -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;

	}

include/drm/drm_mipi_dsi.h

+2 −2
Original line number Diff line number Diff line
@@ -127,7 +127,7 @@ 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,

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);

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