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-rw-r--r--include/drm/drm_mipi_dsi.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 51e09a1a106a..91a164bdd8f3 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -296,6 +296,23 @@ int mipi_dsi_dcs_get_display_brightness(struct mipi_dsi_device *dsi,
u16 *brightness);
/**
+ * mipi_dsi_dcs_write_seq - transmit a DCS command with payload
+ * @dsi: DSI peripheral device
+ * @cmd: Command
+ * @seq: buffer containing data to be transmitted
+ */
+#define mipi_dsi_dcs_write_seq(dsi, cmd, seq...) do { \
+ static const u8 d[] = { cmd, seq }; \
+ struct device *dev = &dsi->dev; \
+ int ret; \
+ ret = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
+ if (ret < 0) { \
+ dev_err_ratelimited(dev, "sending command %#02x failed: %d\n", cmd, ret); \
+ return ret; \
+ } \
+ } while (0)
+
+/**
* struct mipi_dsi_driver - DSI driver
* @driver: device driver model driver
* @probe: callback for device binding