* [PATCH 2/4] regulator: wm8350: Select maximum current in specific range
2019-03-12 16:33 [PATCH 1/4] regulator: wm831x-isink: Select maximum current in specific range Axel Lin
@ 2019-03-12 16:33 ` Axel Lin
2019-03-13 14:04 ` Charles Keepax
2019-03-12 16:33 ` [PATCH 3/4] regulator: wm831x-isink: Convert to use regulator_set/get_current_limit_regmap Axel Lin
` (2 subsequent siblings)
3 siblings, 1 reply; 8+ messages in thread
From: Axel Lin @ 2019-03-12 16:33 UTC (permalink / raw)
To: Mark Brown; +Cc: Charles Keepax, patches, Liam Girdwood, linux-kernel, Axel Lin
.set_current_limit callback should select the current closest to max_uA.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/regulator/wm8350-regulator.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index a1c7dfee5c37..d1758a2bc769 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -99,7 +99,7 @@ static int get_isink_val(int min_uA, int max_uA, u16 *setting)
{
int i;
- for (i = 0; i < ARRAY_SIZE(isink_cur); i++) {
+ for (i = ARRAY_SIZE(isink_cur) - 1; i >= 0; i--) {
if (min_uA <= isink_cur[i] && max_uA >= isink_cur[i]) {
*setting = i;
return 0;
--
2.17.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 3/4] regulator: wm831x-isink: Convert to use regulator_set/get_current_limit_regmap
2019-03-12 16:33 [PATCH 1/4] regulator: wm831x-isink: Select maximum current in specific range Axel Lin
2019-03-12 16:33 ` [PATCH 2/4] regulator: wm8350: " Axel Lin
@ 2019-03-12 16:33 ` Axel Lin
2019-03-13 14:04 ` Charles Keepax
2019-03-12 16:33 ` [PATCH 4/4] regulator: wm8350: " Axel Lin
2019-03-13 14:04 ` [PATCH 1/4] regulator: wm831x-isink: Select maximum current in specific range Charles Keepax
3 siblings, 1 reply; 8+ messages in thread
From: Axel Lin @ 2019-03-12 16:33 UTC (permalink / raw)
To: Mark Brown; +Cc: Charles Keepax, patches, Liam Girdwood, linux-kernel, Axel Lin
Use regulator_set/get_current_limit_regmap helpers to save some code.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/mfd/wm831x-core.c | 2 +-
drivers/regulator/wm831x-isink.c | 45 +++++-----------------------
include/linux/mfd/wm831x/regulator.h | 2 +-
3 files changed, 9 insertions(+), 40 deletions(-)
diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c
index 25fbbaf39cb9..21bae64e0451 100644
--- a/drivers/mfd/wm831x-core.c
+++ b/drivers/mfd/wm831x-core.c
@@ -34,7 +34,7 @@
/* Current settings - values are 2*2^(reg_val/4) microamps. These are
* exported since they are used by multiple drivers.
*/
-int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
+const unsigned int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
2,
2,
3,
diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c
index 676a4701c986..c4bc3d3361aa 100644
--- a/drivers/regulator/wm831x-isink.c
+++ b/drivers/regulator/wm831x-isink.c
@@ -92,48 +92,12 @@ static int wm831x_isink_is_enabled(struct regulator_dev *rdev)
return 0;
}
-static int wm831x_isink_set_current(struct regulator_dev *rdev,
- int min_uA, int max_uA)
-{
- struct wm831x_isink *isink = rdev_get_drvdata(rdev);
- struct wm831x *wm831x = isink->wm831x;
- int ret, i;
-
- for (i = ARRAY_SIZE(wm831x_isinkv_values) - 1; i >= 0; i--) {
- int val = wm831x_isinkv_values[i];
- if (min_uA <= val && val <= max_uA) {
- ret = wm831x_set_bits(wm831x, isink->reg,
- WM831X_CS1_ISEL_MASK, i);
- return ret;
- }
- }
-
- return -EINVAL;
-}
-
-static int wm831x_isink_get_current(struct regulator_dev *rdev)
-{
- struct wm831x_isink *isink = rdev_get_drvdata(rdev);
- struct wm831x *wm831x = isink->wm831x;
- int ret;
-
- ret = wm831x_reg_read(wm831x, isink->reg);
- if (ret < 0)
- return ret;
-
- ret &= WM831X_CS1_ISEL_MASK;
- if (ret > WM831X_ISINK_MAX_ISEL)
- ret = WM831X_ISINK_MAX_ISEL;
-
- return wm831x_isinkv_values[ret];
-}
-
static const struct regulator_ops wm831x_isink_ops = {
.is_enabled = wm831x_isink_is_enabled,
.enable = wm831x_isink_enable,
.disable = wm831x_isink_disable,
- .set_current_limit = wm831x_isink_set_current,
- .get_current_limit = wm831x_isink_get_current,
+ .set_current_limit = regulator_set_current_limit_regmap,
+ .get_current_limit = regulator_get_current_limit_regmap,
};
static irqreturn_t wm831x_isink_irq(int irq, void *data)
@@ -187,10 +151,15 @@ static int wm831x_isink_probe(struct platform_device *pdev)
isink->desc.ops = &wm831x_isink_ops;
isink->desc.type = REGULATOR_CURRENT;
isink->desc.owner = THIS_MODULE;
+ isink->desc.curr_table = wm831x_isinkv_values,
+ isink->desc.n_current_limits = ARRAY_SIZE(wm831x_isinkv_values),
+ isink->desc.csel_reg = isink->reg,
+ isink->desc.csel_mask = WM831X_CS1_ISEL_MASK,
config.dev = pdev->dev.parent;
config.init_data = pdata->isink[id];
config.driver_data = isink;
+ config.regmap = wm831x->regmap;
isink->regulator = devm_regulator_register(&pdev->dev, &isink->desc,
&config);
diff --git a/include/linux/mfd/wm831x/regulator.h b/include/linux/mfd/wm831x/regulator.h
index 955d30fc6a27..30c587a0624c 100644
--- a/include/linux/mfd/wm831x/regulator.h
+++ b/include/linux/mfd/wm831x/regulator.h
@@ -1213,6 +1213,6 @@
#define WM831X_LDO1_OK_WIDTH 1 /* LDO1_OK */
#define WM831X_ISINK_MAX_ISEL 55
-extern int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1];
+extern const unsigned int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1];
#endif
--
2.17.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH 4/4] regulator: wm8350: Convert to use regulator_set/get_current_limit_regmap
2019-03-12 16:33 [PATCH 1/4] regulator: wm831x-isink: Select maximum current in specific range Axel Lin
2019-03-12 16:33 ` [PATCH 2/4] regulator: wm8350: " Axel Lin
2019-03-12 16:33 ` [PATCH 3/4] regulator: wm831x-isink: Convert to use regulator_set/get_current_limit_regmap Axel Lin
@ 2019-03-12 16:33 ` Axel Lin
2019-03-13 14:05 ` Charles Keepax
2019-03-13 14:04 ` [PATCH 1/4] regulator: wm831x-isink: Select maximum current in specific range Charles Keepax
3 siblings, 1 reply; 8+ messages in thread
From: Axel Lin @ 2019-03-12 16:33 UTC (permalink / raw)
To: Mark Brown; +Cc: Charles Keepax, patches, Liam Girdwood, linux-kernel, Axel Lin
Use regulator_set/get_current_limit_regmap helpers to save some code.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/regulator/wm8350-regulator.c | 81 ++++------------------------
1 file changed, 11 insertions(+), 70 deletions(-)
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index d1758a2bc769..0eb3f3a33caa 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -28,7 +28,7 @@
#define WM8350_DCDC_MAX_VSEL 0x66
/* Microamps */
-static const int isink_cur[] = {
+static const unsigned int isink_cur[] = {
4,
5,
6,
@@ -95,73 +95,6 @@ static const int isink_cur[] = {
223191
};
-static int get_isink_val(int min_uA, int max_uA, u16 *setting)
-{
- int i;
-
- for (i = ARRAY_SIZE(isink_cur) - 1; i >= 0; i--) {
- if (min_uA <= isink_cur[i] && max_uA >= isink_cur[i]) {
- *setting = i;
- return 0;
- }
- }
- return -EINVAL;
-}
-
-static int wm8350_isink_set_current(struct regulator_dev *rdev, int min_uA,
- int max_uA)
-{
- struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
- int isink = rdev_get_id(rdev);
- u16 val, setting;
- int ret;
-
- ret = get_isink_val(min_uA, max_uA, &setting);
- if (ret != 0)
- return ret;
-
- switch (isink) {
- case WM8350_ISINK_A:
- val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) &
- ~WM8350_CS1_ISEL_MASK;
- wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_A,
- val | setting);
- break;
- case WM8350_ISINK_B:
- val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) &
- ~WM8350_CS1_ISEL_MASK;
- wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_B,
- val | setting);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int wm8350_isink_get_current(struct regulator_dev *rdev)
-{
- struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
- int isink = rdev_get_id(rdev);
- u16 val;
-
- switch (isink) {
- case WM8350_ISINK_A:
- val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) &
- WM8350_CS1_ISEL_MASK;
- break;
- case WM8350_ISINK_B:
- val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) &
- WM8350_CS1_ISEL_MASK;
- break;
- default:
- return 0;
- }
-
- return isink_cur[val];
-}
-
/* turn on ISINK followed by DCDC */
static int wm8350_isink_enable(struct regulator_dev *rdev)
{
@@ -982,8 +915,8 @@ static const struct regulator_ops wm8350_ldo_ops = {
};
static const struct regulator_ops wm8350_isink_ops = {
- .set_current_limit = wm8350_isink_set_current,
- .get_current_limit = wm8350_isink_get_current,
+ .set_current_limit = regulator_set_current_limit_regmap,
+ .get_current_limit = regulator_get_current_limit_regmap,
.enable = wm8350_isink_enable,
.disable = wm8350_isink_disable,
.is_enabled = wm8350_isink_is_enabled,
@@ -1138,6 +1071,10 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.irq = WM8350_IRQ_CS1,
.type = REGULATOR_CURRENT,
.owner = THIS_MODULE,
+ .curr_table = isink_cur,
+ .n_current_limits = ARRAY_SIZE(isink_cur),
+ .csel_reg = WM8350_CURRENT_SINK_DRIVER_A,
+ .csel_mask = WM8350_CS1_ISEL_MASK,
},
{
.name = "ISINKB",
@@ -1146,6 +1083,10 @@ static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
.irq = WM8350_IRQ_CS2,
.type = REGULATOR_CURRENT,
.owner = THIS_MODULE,
+ .curr_table = isink_cur,
+ .n_current_limits = ARRAY_SIZE(isink_cur),
+ .csel_reg = WM8350_CURRENT_SINK_DRIVER_B,
+ .csel_mask = WM8350_CS2_ISEL_MASK,
},
};
--
2.17.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* Re: [PATCH 1/4] regulator: wm831x-isink: Select maximum current in specific range
2019-03-12 16:33 [PATCH 1/4] regulator: wm831x-isink: Select maximum current in specific range Axel Lin
` (2 preceding siblings ...)
2019-03-12 16:33 ` [PATCH 4/4] regulator: wm8350: " Axel Lin
@ 2019-03-13 14:04 ` Charles Keepax
3 siblings, 0 replies; 8+ messages in thread
From: Charles Keepax @ 2019-03-13 14:04 UTC (permalink / raw)
To: Axel Lin; +Cc: Mark Brown, patches, Liam Girdwood, linux-kernel
On Wed, Mar 13, 2019 at 12:33:54AM +0800, Axel Lin wrote:
> .set_current_limit callback should select the current closest to max_uA.
>
> Signed-off-by: Axel Lin <axel.lin@ingics.com>
> ---
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Thanks,
Charles
^ permalink raw reply [flat|nested] 8+ messages in thread