Reviewed-by: Chris Zhong <z...@rock-chips.com>
On 01/22/2017 12:31 AM, John Keeping wrote:
Signed-off-by: John Keeping <j...@metanate.com>
---
Unchanged in v2
---
drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
index 2dafb17e31d2..881bb0c62ca5 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
@@ -82,6 +82,7 @@
#define FRAME_BTA_ACK BIT(14)
#define ENABLE_LOW_POWER (0x3f << 8)
#define ENABLE_LOW_POWER_MASK (0x3f << 8)
+#define VID_MODE_TYPE_NON_BURST_SYNC_EVENTS 0x1
#define VID_MODE_TYPE_BURST_SYNC_PULSES 0x2
#define VID_MODE_TYPE_MASK 0x3
@@ -286,6 +287,7 @@ struct dw_mipi_dsi {
u32 format;
u16 input_div;
u16 feedback_div;
+ unsigned long mode_flags;
const struct dw_mipi_dsi_plat_data *pdata;
};
@@ -548,15 +550,10 @@ static int dw_mipi_dsi_host_attach(struct mipi_dsi_host
*host,
return -EINVAL;
}
- if (!(device->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) ||
- !(device->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)) {
- dev_err(dsi->dev, "device mode is unsupported\n");
- return -EINVAL;
- }
-
dsi->lanes = device->lanes;
dsi->channel = device->channel;
dsi->format = device->format;
+ dsi->mode_flags = device->mode_flags;
dsi->panel = of_drm_find_panel(device->dev.of_node);
if (dsi->panel)
return drm_panel_attach(dsi->panel, &dsi->connector);
@@ -713,7 +710,12 @@ static void dw_mipi_dsi_video_mode_config(struct
dw_mipi_dsi *dsi)
{
u32 val;
- val = VID_MODE_TYPE_BURST_SYNC_PULSES | ENABLE_LOW_POWER;
+ val = ENABLE_LOW_POWER;
+
+ if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST)
+ val |= VID_MODE_TYPE_BURST_SYNC_PULSES;
+ else if (!(dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE))
+ val |= VID_MODE_TYPE_NON_BURST_SYNC_EVENTS;
dsi_write(dsi, DSI_VID_MODE_CFG, val);
}
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