3 files changed, 12 insertions, 14 deletions

diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index 6d2fd2077dae..6aa6a9e95570 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -201,16 +201,15 @@ EXPORT_SYMBOL(mipi_dsi_detach);
 /**
  * mipi_dsi_dcs_write - send DCS write command
  * @dsi: DSI device
- * @channel: virtual channel
  * @data: pointer to the command followed by parameters
  * @len: length of @data
  */
-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_write(struct mipi_dsi_device *dsi, const void *data,
+                            size_t len)
 {
         const struct mipi_dsi_host_ops *ops = dsi->host->ops;
         struct mipi_dsi_msg msg = {
-                .channel = channel,
+                .channel = dsi->channel,
                 .tx_buf = data,
                 .tx_len = len
         };
@@ -239,19 +238,18 @@ EXPORT_SYMBOL(mipi_dsi_dcs_write);
 /**
  * mipi_dsi_dcs_read - send DCS read request command
  * @dsi: DSI device
- * @channel: virtual channel
  * @cmd: DCS read command
  * @data: pointer to read buffer
  * @len: length of @data
  *
  * Function returns number of read bytes or error code.
  */
-ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, unsigned int channel,
-                          u8 cmd, void *data, size_t len)
+ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
+                          size_t len)
 {
         const struct mipi_dsi_host_ops *ops = dsi->host->ops;
         struct mipi_dsi_msg msg = {
-                .channel = channel,
+                .channel = dsi->channel,
                 .type = MIPI_DSI_DCS_READ,
                 .tx_buf = &cmd,
                 .tx_len = 1,
diff --git a/drivers/gpu/drm/panel/panel-s6e8aa0.c b/drivers/gpu/drm/panel/panel-s6e8aa0.c
index beb43492b649..5502ef6bc074 100644
--- a/drivers/gpu/drm/panel/panel-s6e8aa0.c
+++ b/drivers/gpu/drm/panel/panel-s6e8aa0.c
@@ -138,7 +138,7 @@ static void s6e8aa0_dcs_write(struct s6e8aa0 *ctx, const void *data, size_t len)
         if (ctx->error < 0)
                 return;
 
-        ret = mipi_dsi_dcs_write(dsi, dsi->channel, data, len);
+        ret = mipi_dsi_dcs_write(dsi, data, len);
         if (ret < 0) {
                 dev_err(ctx->dev, "error %zd writing dcs seq: %*ph\n", ret, len,
                         data);
@@ -154,7 +154,7 @@ static int s6e8aa0_dcs_read(struct s6e8aa0 *ctx, u8 cmd, void *data, size_t len)
         if (ctx->error < 0)
                 return ctx->error;
 
-        ret = mipi_dsi_dcs_read(dsi, dsi->channel, cmd, data, len);
+        ret = mipi_dsi_dcs_read(dsi, cmd, data, len);
         if (ret < 0) {
                 dev_err(ctx->dev, "error %d reading dcs seq(%#x)\n", ret, cmd);
                 ctx->error = ret;
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 4b0112781910..7b5e1a9244e1 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -127,10 +127,10 @@ struct mipi_dsi_device {
 
 int mipi_dsi_attach(struct mipi_dsi_device *dsi);
 int mipi_dsi_detach(struct mipi_dsi_device *dsi);
-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);
+ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, const void *data,
+                            size_t len);
+ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
+                          size_t len);
 
 /**
  * struct mipi_dsi_driver - DSI driver