/**
* 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
};
/**
* 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,
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);
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;
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