Merge "sde: rotator: add support to configure bus scale vectors"

Documentation/devicetree/bindings/fb/mdss-rotator.txt

@@ -53,6 +53,8 @@ Optional properties
 				bandwidth compression (ubwc)
 - qcom,mdss-has-downscale	Boolean property to indicate
 				if the hw supports downscale
+- qcom,sde-reg-bus:		Subnode to provide Bus scaling for register access for
+				rotator
 
 Example:
 	mdss_rotator: qcom,mdss_rotator {
@@ -75,4 +77,16 @@ Example:
 		vdd-supply = <&gdsc_mdss>;
 		gdsc-mmagic-mdss-supply = <&gdsc_mmagic_mdss>;
 		qcom,supply-names = "vdd", "gdsc-mmagic-mdss";
+		qcom,sde-reg-bus {
+		    /* Reg Bus Scale Settings */
+		    qcom,msm-bus,name = "mdss_rot_reg";
+		    qcom,msm-bus,num-cases = <4>;
+		    qcom,msm-bus,num-paths = <1>;
+		    qcom,msm-bus,active-only;
+		    qcom,msm-bus,vectors-KBps =
+			    <1 590 0 0>,
+			    <1 590 0 76800>,
+			    <1 590 0 160000>,
+			    <1 590 0 320000>;
+		};
 	};

drivers/media/platform/msm/sde/rotator/sde_rotator_base.c

@@ -477,6 +477,7 @@ static int sde_mdp_parse_dt_misc(struct platform_device *pdev,
 {
 	int rc;
 	u32 data;
+	struct device_node *node;
 
 	rc = of_property_read_u32(pdev->dev.of_node, "qcom,mdss-rot-block-size",
 		&data);
@@ -505,6 +506,19 @@ static int sde_mdp_parse_dt_misc(struct platform_device *pdev,
 
 	mdata->mdp_base = mdata->sde_io.base + SDE_MDP_OFFSET;
 
+	node = of_get_child_by_name(pdev->dev.of_node,
+				"qcom,sde-reg-bus");
+	if (node) {
+		mdata->reg_bus_pdata = msm_bus_pdata_from_node(pdev, node);
+		if (IS_ERR_OR_NULL(mdata->reg_bus_pdata)) {
+			SDEROT_DBG("bus_pdata reg_bus failed\n");
+			mdata->reg_bus_pdata = NULL;
+		}
+	} else {
+		SDEROT_DBG("sde-reg-bus not found\n");
+		mdata->reg_bus_pdata = NULL;
+	}
+
 	return 0;
 }
 
@@ -553,9 +567,10 @@ static int sde_mdp_bus_scale_register(struct sde_rot_data_type *mdata)
 		if (!mdata->reg_bus_hdl) {
 			/* Continue without reg_bus scaling */
 			SDEROT_WARN("reg_bus_client register failed\n");
-		} else
+		} else {
 			SDEROT_DBG("register reg_bus_hdl=%x\n",
 					mdata->reg_bus_hdl);
+		}
 	}
 
 	return 0;

drivers/media/platform/msm/sde/rotator/sde_rotator_base.h

@@ -195,6 +195,7 @@ struct sde_rot_data_type {
 	struct ion_client *iclient;
 
 	bool handoff_done;
+	struct msm_bus_scale_pdata *reg_bus_pdata;
 };
 
 int sde_rotator_base_init(struct sde_rot_data_type **pmdata,

drivers/media/platform/msm/sde/rotator/sde_rotator_core.c

@@ -2419,6 +2419,7 @@ static int sde_rotator_parse_dt_bus(struct sde_rot_mgr *mgr,
 {
 	int ret = 0, i;
 	int usecases;
+	struct sde_rot_data_type *mdata = sde_rot_get_mdata();
 
 	mgr->data_bus.bus_scale_pdata = msm_bus_cl_get_pdata(dev);
 	if (IS_ERR_OR_NULL(mgr->data_bus.bus_scale_pdata)) {
@@ -2431,12 +2432,16 @@ static int sde_rotator_parse_dt_bus(struct sde_rot_mgr *mgr,
 		}
 	}
 
-	mgr->reg_bus.bus_scale_pdata = &rot_reg_bus_scale_table;
+	if (mdata && mdata->reg_bus_pdata) {
-	usecases = mgr->reg_bus.bus_scale_pdata->num_usecases;
+		mgr->reg_bus.bus_scale_pdata = mdata->reg_bus_pdata;
-	for (i = 0; i < usecases; i++) {
+	} else {
-		rot_reg_bus_usecases[i].num_paths = 1;
+		mgr->reg_bus.bus_scale_pdata = &rot_reg_bus_scale_table;
-		rot_reg_bus_usecases[i].vectors =
+		usecases = mgr->reg_bus.bus_scale_pdata->num_usecases;
-			&rot_reg_bus_vectors[i];
+		for (i = 0; i < usecases; i++) {
+			rot_reg_bus_usecases[i].num_paths = 1;
+			rot_reg_bus_usecases[i].vectors =
+				&rot_reg_bus_vectors[i];
+		}
 	}
 
 	return ret;