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@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/dsi/dsi.c | 4 ++++
drivers/gpu/drm/msm/dsi/dsi.h | 5 ++++-
drivers/gpu/drm/msm/dsi/dsi_host.c | 15 +++++++++++++++
3 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c
index f68f34b..bccc006 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.c
+++ b/drivers/gpu/drm/msm/dsi/dsi.c
@@ -266,4 +266,8 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
return ret;
}
+void msm_dsi_snapshot(struct msm_dsi *msm_dsi)
+{
+ msm_dsi_host_snapshot(msm_dsi->host);
+}
diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h
index 7abfeab..e26223c 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.h
+++ b/drivers/gpu/drm/msm/dsi/dsi.h
@@ -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 {
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 316e78d..899b6fc 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -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);
+}
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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