drm/msm: pass dump state as a function argument

Instead of always getting the disp_state from drm device, pass it as an
argument.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Link: https://lore.kernel.org/r/20210427001828.2375555-2-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c

@@ -799,15 +799,12 @@ static void dpu_irq_uninstall(struct msm_kms *kms)
 	dpu_core_irq_uninstall(dpu_kms);
 }
 
-static void dpu_kms_mdp_snapshot(struct msm_kms *kms)
+static void dpu_kms_mdp_snapshot(struct msm_disp_state *disp_state, struct msm_kms *kms)
 {
 	int i;
 	struct dpu_kms *dpu_kms;
 	struct dpu_mdss_cfg *cat;
 	struct dpu_hw_mdp *top;
-	struct msm_disp_state *disp_state;
-
-	disp_state = kms->disp_state;
 
 	dpu_kms = to_dpu_kms(kms);
 

drivers/gpu/drm/msm/disp/msm_disp_snapshot.h

@@ -104,14 +104,6 @@ void msm_disp_snapshot_destroy(struct drm_device *drm_dev);
  */
 void msm_disp_snapshot_state(struct drm_device *drm_dev);
 
-/**
- * msm_disp_state_get - get the handle to msm_disp_state struct from the drm device
- * @drm:	    handle to drm device
-
- * Returns:	handle to the msm_disp_state struct
- */
-struct msm_disp_state *msm_disp_state_get(struct drm_device *drm);
-
 /**
  * msm_disp_state_print - print out the current dpu state
  * @disp_state:	    handle to drm device

drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c

@@ -69,17 +69,6 @@ static void msm_disp_state_print_regs(u32 **reg, u32 len, void __iomem *base_add
 	}
 }
 
-struct msm_disp_state *msm_disp_state_get(struct drm_device *drm)
-{
-	struct msm_drm_private *priv;
-	struct msm_kms *kms;
-
-	priv = drm->dev_private;
-	kms = priv->kms;
-
-	return kms->disp_state;
-}
-
 void msm_disp_state_print(struct msm_disp_state *state, struct drm_printer *p)
 {
 	struct msm_disp_state_block *block, *tmp;
@@ -138,17 +127,17 @@ void msm_disp_snapshot_capture_state(struct msm_disp_state *disp_state)
 	kms = priv->kms;
 
 	if (priv->dp)
-		msm_dp_snapshot(priv->dp);
+		msm_dp_snapshot(disp_state, priv->dp);
 
 	for (i = 0; i < ARRAY_SIZE(priv->dsi); i++) {
 		if (!priv->dsi[i])
 			continue;
 
-		msm_dsi_snapshot(priv->dsi[i]);
+		msm_dsi_snapshot(disp_state, priv->dsi[i]);
 	}
 
 	if (kms->funcs->snapshot)
-		kms->funcs->snapshot(kms);
+		kms->funcs->snapshot(disp_state, kms);
 
 	msm_disp_capture_atomic_state(disp_state);
 }

drivers/gpu/drm/msm/dp/dp_display.c

@@ -1039,15 +1039,13 @@ int dp_display_get_test_bpp(struct msm_dp *dp)
 		dp_display->link->test_video.test_bit_depth);
 }
 
-void msm_dp_snapshot(struct msm_dp *dp)
+void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp)
 {
 	struct dp_display_private *dp_display;
 	struct drm_device *drm;
-	struct msm_disp_state *disp_state;
 
 	dp_display = container_of(dp, struct dp_display_private, dp_display);
 	drm = dp->drm_dev;
-	disp_state = msm_disp_state_get(drm);
 
 	/*
 	 * if we are reading registers we need the link clocks to be on

drivers/gpu/drm/msm/dsi/dsi.c

@@ -266,8 +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)
+void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi)
 {
-	msm_dsi_host_snapshot(msm_dsi->host);
+	msm_dsi_host_snapshot(disp_state, msm_dsi->host);
 }
 

drivers/gpu/drm/msm/dsi/dsi.h

@@ -91,7 +91,7 @@ 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);
+void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi);
 
 struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);
 
@@ -149,7 +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);
+void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host);
 /* dsi phy */
 struct msm_dsi_phy;
 struct msm_dsi_phy_shared_timings {

drivers/gpu/drm/msm/dsi/dsi_host.c

@@ -2488,13 +2488,9 @@ 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)
+void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, 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);
 

drivers/gpu/drm/msm/msm_drv.h

@@ -367,7 +367,8 @@ void msm_dp_display_mode_set(struct msm_dp *dp, struct drm_encoder *encoder,
 				struct drm_display_mode *mode,
 				struct drm_display_mode *adjusted_mode);
 void msm_dp_irq_postinstall(struct msm_dp *dp_display);
-void msm_dp_snapshot(struct msm_dp *dp_display);
+struct msm_disp_state;
+void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_display);
 
 void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
 

drivers/gpu/drm/msm/msm_kms.h

@@ -124,7 +124,7 @@ struct msm_kms_funcs {
 	void (*destroy)(struct msm_kms *kms);
 
 	/* snapshot: */
-	void (*snapshot)(struct msm_kms *kms);
+	void (*snapshot)(struct msm_disp_state *disp_state, struct msm_kms *kms);
 
 #ifdef CONFIG_DEBUG_FS
 	/* debugfs: */