xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/msm/dsi: Don't use iommu for command TX buffer for DSIv2

Browse Source 
We currently use iommu allocated DMA buffers for sending DSI commands.
DSIv2 doesn't have a port connected to the MDP iommu. Therefore, it
can't use iommu allocated buffers to fetch DSI commands.

Use a regular contiguous DMA buffer if we are DSIv2.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Archit Taneja
2015-10-13 12:20:47 +05:30
committed by Rob Clark
parent cea65dbd6a
commit 4ff9d4cbc1
3 changed files with 79 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/msm/dsi/dsi.h
View File

@@ -91,7 +91,7 @@ int msm_dsi_manager_phy_enable(int id,
u32 *clk_pre, u32 *clk_post);
void msm_dsi_manager_phy_disable(int id);
int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 iova, u32 len);
bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
@@ -145,7 +145,7 @@ int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
const struct mipi_dsi_msg *msg);
void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
u32 iova, u32 len);
u32 dma_base, u32 len);
int msm_dsi_host_enable(struct mipi_dsi_host *host);
int msm_dsi_host_disable(struct mipi_dsi_host *host);
int msm_dsi_host_power_on(struct mipi_dsi_host *host);