msm: kgsl: Change vdd_dig to vddcx

Change GPU digital circuit head switch name to vddcx to match
devicetree property name convention.

Change-Id: If17b47125f08873106f74fdb21a29c58dbf1496a
Signed-off-by: Pu Chen <puchen@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_pwrctrl.c b/drivers/gpu/msm/kgsl_pwrctrl.c
index bfe6957..6d4d4d3 100644
--- a/drivers/gpu/msm/kgsl_pwrctrl.c
+++ b/drivers/gpu/msm/kgsl_pwrctrl.c
@@ -439,8 +439,8 @@
 		if (test_and_clear_bit(KGSL_PWRFLAGS_POWER_ON,
 			&pwr->power_flags)) {
 			trace_kgsl_rail(device, state);
-			if (pwr->gpu_dig)
-				regulator_disable(pwr->gpu_dig);
+			if (pwr->gpu_cx)
+				regulator_disable(pwr->gpu_cx);
 			if (pwr->gpu_reg)
 				regulator_disable(pwr->gpu_reg);
 		}
@@ -456,8 +456,8 @@
 							"failed: %d\n",
 							status);
 			}
-			if (pwr->gpu_dig) {
-				int status = regulator_enable(pwr->gpu_dig);
+			if (pwr->gpu_cx) {
+				int status = regulator_enable(pwr->gpu_cx);
 				if (status)
 					KGSL_DRV_ERR(device,
 							"cx regulator_enable "
@@ -547,11 +547,11 @@
 		pwr->gpu_reg = NULL;
 
 	if (pwr->gpu_reg) {
-		pwr->gpu_dig = regulator_get(&pdev->dev, "vdd_dig");
-		if (IS_ERR(pwr->gpu_dig))
-			pwr->gpu_dig = NULL;
+		pwr->gpu_cx = regulator_get(&pdev->dev, "vddcx");
+		if (IS_ERR(pwr->gpu_cx))
+			pwr->gpu_cx = NULL;
 	} else
-		pwr->gpu_dig = NULL;
+		pwr->gpu_cx = NULL;
 
 	pwr->power_flags = 0;
 
@@ -615,9 +615,9 @@
 		pwr->gpu_reg = NULL;
 	}
 
-	if (pwr->gpu_dig) {
-		regulator_put(pwr->gpu_dig);
-		pwr->gpu_dig = NULL;
+	if (pwr->gpu_cx) {
+		regulator_put(pwr->gpu_cx);
+		pwr->gpu_cx = NULL;
 	}
 
 	for (i = 1; i < KGSL_MAX_CLKS; i++)
diff --git a/drivers/gpu/msm/kgsl_pwrctrl.h b/drivers/gpu/msm/kgsl_pwrctrl.h
index 954c818..cd44152 100644
--- a/drivers/gpu/msm/kgsl_pwrctrl.h
+++ b/drivers/gpu/msm/kgsl_pwrctrl.h
@@ -50,7 +50,7 @@
 	unsigned int interval_timeout;
 	bool strtstp_sleepwake;
 	struct regulator *gpu_reg;
-	struct regulator *gpu_dig;
+	struct regulator *gpu_cx;
 	uint32_t pcl;
 	unsigned int nap_allowed;
 	unsigned int idle_needed;