X-Git-Url: http://git.samba.org/samba.git/?a=blobdiff_plain;f=drivers%2Fregulator%2Fwm831x-dcdc.c;h=12b422373580c394b0d978763763150fcccd724d;hb=7629bac64204ff256d3b2415767a7acb1401047b;hp=5a5bc4bb08d26ee78926aacaa906010cc1f426c2;hpb=d36694b6590f59a83dc002f945e941a4f13635d1;p=sfrench%2Fcifs-2.6.git

diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 5a5bc4bb08d2..12b422373580 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -205,33 +205,10 @@ static irqreturn_t wm831x_dcdc_oc_irq(int irq, void *data)
  * BUCKV specifics
  */
 
-static int wm831x_buckv_list_voltage(struct regulator_dev *rdev,
-				      unsigned selector)
-{
-	if (selector <= 0x8)
-		return 600000;
-	if (selector <= WM831X_BUCKV_MAX_SELECTOR)
-		return 600000 + ((selector - 0x8) * 12500);
-	return -EINVAL;
-}
-
-static int wm831x_buckv_map_voltage(struct regulator_dev *rdev,
-				   int min_uV, int max_uV)
-{
-	u16 vsel;
-
-	if (min_uV < 600000)
-		vsel = 0;
-	else if (min_uV <= 1800000)
-		vsel = DIV_ROUND_UP(min_uV - 600000, 12500) + 8;
-	else
-		return -EINVAL;
-
-	if (wm831x_buckv_list_voltage(rdev, vsel) > max_uV)
-		return -EINVAL;
-
-	return vsel;
-}
+static const struct regulator_linear_range wm831x_buckv_ranges[] = {
+	REGULATOR_LINEAR_RANGE(600000, 0, 0x7, 0),
+	REGULATOR_LINEAR_RANGE(600000, 0x8, 0x68, 12500),
+};
 
 static int wm831x_buckv_set_dvs(struct regulator_dev *rdev, int state)
 {
@@ -309,7 +286,7 @@ static int wm831x_buckv_set_suspend_voltage(struct regulator_dev *rdev,
 	u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
 	int vsel;
 
-	vsel = wm831x_buckv_map_voltage(rdev, uV, uV);
+	vsel = regulator_map_voltage_linear_range(rdev, uV, uV);
 	if (vsel < 0)
 		return vsel;
 
@@ -327,52 +304,18 @@ static int wm831x_buckv_get_voltage_sel(struct regulator_dev *rdev)
 }
 
 /* Current limit options */
-static u16 wm831x_dcdc_ilim[] = {
-	125, 250, 375, 500, 625, 750, 875, 1000
+static const unsigned int wm831x_dcdc_ilim[] = {
+	125000, 250000, 375000, 500000, 625000, 750000, 875000, 1000000
 };
 
-static int wm831x_buckv_set_current_limit(struct regulator_dev *rdev,
-					   int min_uA, int max_uA)
-{
-	struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
-	struct wm831x *wm831x = dcdc->wm831x;
-	u16 reg = dcdc->base + WM831X_DCDC_CONTROL_2;
-	int i;
-
-	for (i = ARRAY_SIZE(wm831x_dcdc_ilim) - 1; i >= 0; i--) {
-		if ((min_uA <= wm831x_dcdc_ilim[i]) &&
-		    (wm831x_dcdc_ilim[i] <= max_uA))
-			return wm831x_set_bits(wm831x, reg,
-					       WM831X_DC1_HC_THR_MASK,
-						i << WM831X_DC1_HC_THR_SHIFT);
-	}
-
-	return -EINVAL;
-}
-
-static int wm831x_buckv_get_current_limit(struct regulator_dev *rdev)
-{
-	struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
-	struct wm831x *wm831x = dcdc->wm831x;
-	u16 reg = dcdc->base + WM831X_DCDC_CONTROL_2;
-	int val;
-
-	val = wm831x_reg_read(wm831x, reg);
-	if (val < 0)
-		return val;
-
-	val = (val & WM831X_DC1_HC_THR_MASK) >> WM831X_DC1_HC_THR_SHIFT;
-	return wm831x_dcdc_ilim[val];
-}
-
 static const struct regulator_ops wm831x_buckv_ops = {
 	.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,
+	.list_voltage = regulator_list_voltage_linear_range,
+	.map_voltage = regulator_map_voltage_linear_range,
 	.set_suspend_voltage = wm831x_buckv_set_suspend_voltage,
-	.set_current_limit = wm831x_buckv_set_current_limit,
-	.get_current_limit = wm831x_buckv_get_current_limit,
+	.set_current_limit = regulator_set_current_limit_regmap,
+	.get_current_limit = regulator_get_current_limit_regmap,
 
 	.is_enabled = regulator_is_enabled_regmap,
 	.enable = regulator_enable_regmap,
@@ -492,10 +435,16 @@ static int wm831x_buckv_probe(struct platform_device *pdev)
 	dcdc->desc.id = id;
 	dcdc->desc.type = REGULATOR_VOLTAGE;
 	dcdc->desc.n_voltages = WM831X_BUCKV_MAX_SELECTOR + 1;
+	dcdc->desc.linear_ranges = wm831x_buckv_ranges;
+	dcdc->desc.n_linear_ranges = ARRAY_SIZE(wm831x_buckv_ranges);
 	dcdc->desc.ops = &wm831x_buckv_ops;
 	dcdc->desc.owner = THIS_MODULE;
 	dcdc->desc.enable_reg = WM831X_DCDC_ENABLE;
 	dcdc->desc.enable_mask = 1 << id;
+	dcdc->desc.csel_reg = dcdc->base + WM831X_DCDC_CONTROL_2;
+	dcdc->desc.csel_mask = WM831X_DC1_HC_THR_MASK;
+	dcdc->desc.n_current_limits = ARRAY_SIZE(wm831x_dcdc_ilim);
+	dcdc->desc.curr_table = wm831x_dcdc_ilim;
 
 	ret = wm831x_reg_read(wm831x, dcdc->base + WM831X_DCDC_ON_CONFIG);
 	if (ret < 0) {