[PATCH v2 01/10] pinctrl: rockchip: Use syscon_regmap_lookup_by_phandle()

[Jonas Karlman]

Use syscon_regmap_lookup_by_phandle() to simplify the code.

Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>
---
v2: Collect r-b tag
---
 .../pinctrl/rockchip/pinctrl-rockchip-core.c  | 39 ++++++-------------
 1 file changed, 12 insertions(+), 27 deletions(-)

diff --git a/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c b/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c
index d449d07d32e7..f6af22501c36 100644
--- a/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c
+++ b/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c
@@ -10,6 +10,7 @@
 #include <syscon.h>
 #include <fdtdec.h>
 #include <linux/bitops.h>
+#include <linux/err.h>
 #include <linux/libfdt.h>
 
 #include "pinctrl-rockchip.h"
@@ -640,37 +641,21 @@ int rockchip_pinctrl_probe(struct udevice *dev)
 {
 	struct rockchip_pinctrl_priv *priv = dev_get_priv(dev);
 	struct rockchip_pin_ctrl *ctrl;
-	struct udevice *syscon;
-	struct regmap *regmap;
-	int ret = 0;
 
-	/* get rockchip grf syscon phandle */
-	ret = uclass_get_device_by_phandle(UCLASS_SYSCON, dev, "rockchip,grf",
-					   &syscon);
-	if (ret) {
-		debug("unable to find rockchip,grf syscon device (%d)\n", ret);
-		return ret;
+	priv->regmap_base =
+			syscon_regmap_lookup_by_phandle(dev, "rockchip,grf");
+	if (IS_ERR(priv->regmap_base)) {
+		debug("unable to find rockchip,grf regmap\n");
+		return PTR_ERR(priv->regmap_base);
 	}
 
-	/* get grf-reg base address */
-	regmap = syscon_get_regmap(syscon);
-	if (!regmap) {
-		debug("unable to find rockchip grf regmap\n");
-		return -ENODEV;
-	}
-	priv->regmap_base = regmap;
-
-	/* option: get pmu-reg base address */
-	ret = uclass_get_device_by_phandle(UCLASS_SYSCON, dev, "rockchip,pmu",
-					   &syscon);
-	if (!ret) {
-		/* get pmugrf-reg base address */
-		regmap = syscon_get_regmap(syscon);
-		if (!regmap) {
-			debug("unable to find rockchip pmu regmap\n");
-			return -ENODEV;
+	if (dev_read_bool(dev, "rockchip,pmu")) {
+		priv->regmap_pmu =
+			syscon_regmap_lookup_by_phandle(dev, "rockchip,pmu");
+		if (IS_ERR(priv->regmap_pmu)) {
+			debug("unable to find rockchip,pmu regmap\n");
+			return PTR_ERR(priv->regmap_pmu);
 		}
-		priv->regmap_pmu = regmap;
 	}
 
 	ctrl = rockchip_pinctrl_get_soc_data(dev);
-- 
2.45.2