[RFC PATCH v2 01/21] drm_mipi_dsi: add flags to DSI messages

Andrzej Hajda
2014-02-12T11:32:08Z

This patch adds flags field to mipi_dsi_msg structure and two flags:
- MIPI_DSI_MSG_REQ_ACK - request ACK from peripheral for given message,
- MIPI_DSI_MSG_USE_LPM - use Low Power Mode to transmit message.
The first flag is usually helpful during DSI diagnostic, the second
flag is required by some peripherals during configuration phase.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
---
include/drm/drm_mipi_dsi.h | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index d32628a..7209df1 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -17,6 +17,11 @@
struct mipi_dsi_host;
struct mipi_dsi_device;

+/* request ACK from peripheral */
+#define MIPI_DSI_MSG_REQ_ACK BIT(0)
+/* use Low Power Mode to transmit message */
+#define MIPI_DSI_MSG_USE_LPM BIT(1)
+
/**
* struct mipi_dsi_msg - read/write DSI buffer
* @channel: virtual channel id
@@ -29,6 +34,7 @@ struct mipi_dsi_device;
struct mipi_dsi_msg {
u8 channel;
u8 type;
+ u16 flags;

size_t tx_len;
const void *tx_buf;
--
1.8.3.2