linux-kernel - [PATCH RFT 3/4] regulator: wm831x-dcdc: Convert wm831x_buckv_ops to set_voltage_sel and map

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Date:	Tue, 12 Jun 2012 10:23:09 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH RFT 3/4] regulator: wm831x-dcdc: Convert wm831x_buckv_ops to
 set_voltage_sel and map_voltage

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/regulator/wm831x-dcdc.c |   34 +++++++++++++++-------------------
 1 file changed, 15 insertions(+), 19 deletions(-)

diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 91b5b0a..eea53e1 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -215,8 +215,8 @@ static int wm831x_buckv_list_voltage(struct regulator_dev *rdev,
 	return -EINVAL;
 }
 
-static int wm831x_buckv_select_min_voltage(struct regulator_dev *rdev,
-					   int min_uV, int max_uV)
+static int wm831x_buckv_map_voltage(struct regulator_dev *rdev,
+				   int min_uV, int max_uV)
 {
 	u16 vsel;
 
@@ -251,33 +251,28 @@ static int wm831x_buckv_set_dvs(struct regulator_dev *rdev, int state)
 	return 0;
 }
 
-static int wm831x_buckv_set_voltage(struct regulator_dev *rdev,
-				    int min_uV, int max_uV, unsigned *selector)
+static int wm831x_buckv_set_voltage_sel(struct regulator_dev *rdev,
+					unsigned selector)
 {
 	struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
 	struct wm831x *wm831x = dcdc->wm831x;
 	int on_reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
 	int dvs_reg = dcdc->base + WM831X_DCDC_DVS_CONTROL;
-	int vsel, ret;
-
-	vsel = wm831x_buckv_select_min_voltage(rdev, min_uV, max_uV);
-	if (vsel < 0)
-		return vsel;
-
-	*selector = vsel;
+	int ret;
 
 	/* If this value is already set then do a GPIO update if we can */
-	if (dcdc->dvs_gpio && dcdc->on_vsel == vsel)
+	if (dcdc->dvs_gpio && dcdc->on_vsel == selector)
 		return wm831x_buckv_set_dvs(rdev, 0);
 
-	if (dcdc->dvs_gpio && dcdc->dvs_vsel == vsel)
+	if (dcdc->dvs_gpio && dcdc->dvs_vsel == selector)
 		return wm831x_buckv_set_dvs(rdev, 1);
 
 	/* Always set the ON status to the minimum voltage */
-	ret = wm831x_set_bits(wm831x, on_reg, WM831X_DC1_ON_VSEL_MASK, vsel);
+	ret = wm831x_set_bits(wm831x, on_reg, WM831X_DC1_ON_VSEL_MASK,
+			      selector);
 	if (ret < 0)
 		return ret;
-	dcdc->on_vsel = vsel;
+	dcdc->on_vsel = selector;
 
 	if (!dcdc->dvs_gpio)
 		return ret;
@@ -293,12 +288,12 @@ static int wm831x_buckv_set_voltage(struct regulator_dev *rdev,
 	 * usage where we want to get to the highest voltage very
 	 * quickly.
 	 */
-	if (vsel > dcdc->dvs_vsel) {
+	if (selector > dcdc->dvs_vsel) {
 		ret = wm831x_set_bits(wm831x, dvs_reg,
 				      WM831X_DC1_DVS_VSEL_MASK,
 				      dcdc->dvs_vsel);
 		if (ret == 0)
-			dcdc->dvs_vsel = vsel;
+			dcdc->dvs_vsel = selector;
 		else
 			dev_warn(wm831x->dev,
 				 "Failed to set DCDC DVS VSEL: %d\n", ret);
@@ -315,7 +310,7 @@ static int wm831x_buckv_set_suspend_voltage(struct regulator_dev *rdev,
 	u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
 	int vsel;
 
-	vsel = wm831x_buckv_select_min_voltage(rdev, uV, uV);
+	vsel = wm831x_buckv_map_voltage(rdev, uV, uV);
 	if (vsel < 0)
 		return vsel;
 
@@ -373,9 +368,10 @@ static int wm831x_buckv_get_current_limit(struct regulator_dev *rdev)
 }
 
 static struct regulator_ops wm831x_buckv_ops = {
-	.set_voltage = wm831x_buckv_set_voltage,
+	.set_voltage_sel = wm831x_buckv_set_voltage_sel,
 	.get_voltage_sel = wm831x_buckv_get_voltage_sel,
 	.list_voltage = wm831x_buckv_list_voltage,
+	.map_voltage = wm831x_buckv_map_voltage,
 	.set_suspend_voltage = wm831x_buckv_set_suspend_voltage,
 	.set_current_limit = wm831x_buckv_set_current_limit,
 	.get_current_limit = wm831x_buckv_get_current_limit,
-- 
1.7.9.5



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