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

Message ID 1392204688-4591-2-git-send-email-a.hajda@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Andrzej Hajda Feb. 12, 2014, 11:31 a.m. UTC 
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(+)
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Patch

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;