samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

disp: msm: dsi: handle wait for dma cmd completion

Browse Source 
The current solution triggers the DMA command and waits till
the command dma done and ISR signals completion. This change
introduces asynchronous wait after a DCS command has been
triggered. Enable this mode only during pre kickoff, so as to not
block commit thread.

Change-Id: Iead7b6328883e844147d47ff68dc878943879553
Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>
This commit is contained in:
Satya Rama Aditya Pinapala
2019-08-30 10:39:00 -07:00
committed by Gerrit - the friendly Code Review server
parent d236dbd5e0
commit 8bc240b71d
5 changed files with 269 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
msm/dsi/dsi_display.h
View File

@@ -182,6 +182,9 @@ struct dsi_display_ext_bridge {
* @esd_trigger field indicating ESD trigger through debugfs
* @te_source vsync source pin information
* @clk_gating_config Clocks for which clock gating needs to be enabled
* @queue_cmd_waits Indicates if wait for dma commands done has to be queued.
* @dma_cmd_workq: Pointer to the workqueue of DMA command transfer done
* wait sequence.
*/
struct dsi_display {
struct platform_device *pdev;
@@ -266,6 +269,8 @@ struct dsi_display {
u32 te_source;
u32 clk_gating_config;
bool queue_cmd_waits;
struct workqueue_struct *dma_cmd_workq;
};
int dsi_display_dev_probe(struct platform_device *pdev);