iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/msm/dsi: add API to take DSI register snapshot

Browse Source 
Add an API to take a snapshot of DSI controller registers. This API
will be used by the msm_disp_snapshot module to capture the DSI
snapshot.

Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/1618606645-19695-4-git-send-email-abhinavk@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Abhinav Kumar
2021-04-16 13:57:21 -07:00
committed by Rob Clark
parent 98659487b8
commit 9d30a4bcf4
3 changed files with 23 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@ -266,4 +266,8 @@ fail:
return ret;
}
void msm_dsi_snapshot(struct msm_dsi *msm_dsi)
{
msm_dsi_host_snapshot(msm_dsi->host);
}

5
drivers/gpu/drm/msm/dsi/dsi.h
View File

@ -15,6 +15,7 @@
#include <drm/drm_panel.h>
#include "msm_drv.h"
#include "disp/msm_disp_snapshot.h"
#define DSI_0 0
#define DSI_1 1
@ -90,6 +91,8 @@ static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
return msm_dsi->panel || msm_dsi->external_bridge;
}
void msm_dsi_snapshot(struct msm_dsi *msm_dsi);
struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);
/* dsi host */
@ -146,7 +149,7 @@ int dsi_clk_init_v2(struct msm_dsi_host *msm_host);
int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host);
int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_dual_dsi);
int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_dual_dsi);
void msm_dsi_host_snapshot(struct mipi_dsi_host *host);
/* dsi phy */
struct msm_dsi_phy;
struct msm_dsi_phy_shared_timings {

15
drivers/gpu/drm/msm/dsi/dsi_host.c
View File

@ -2488,3 +2488,18 @@ struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host)
return of_drm_find_bridge(msm_host->device_node);
}
void msm_dsi_host_snapshot(struct mipi_dsi_host *host)
{
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
struct drm_device *dev = msm_host->dev;
struct msm_disp_state *disp_state;
disp_state = msm_disp_state_get(dev);
pm_runtime_get_sync(&msm_host->pdev->dev);
msm_disp_snapshot_add_block(disp_state, msm_iomap_size(msm_host->pdev, "dsi_ctrl"),
msm_host->ctrl_base, "dsi%d_ctrl", msm_host->id);
pm_runtime_put_sync(&msm_host->pdev->dev);
}