regulator: fixed: Add support to handle enable-active-high DT property
PATCH 1/1 regulator: fixed: Add support to handle enable-active-high DT property
Add support to handle enable-active-high DT property. This property is used to drive the gpio controlling fixed regulator as active high when claiming gpio line.
Signed-off-by Vignesh R <[email protected]>
--- doc/device-tree-bindings/regulator/fixed.txt | 4 ++++ drivers/power/regulator/fixed.c | 7 ++++++- 2 files changed, 10 insertions(+), 1 deletion(-)
doc/device-tree-bindings/regulator/fixed.txt +4 -0
@@ -12,6 +12,9 @@ Optional properties: - gpio: GPIO to use for enable control - startup-delay-us: startup time in microseconds - regulator constraints (binding info: regulator.txt) +- enable-active-high: Polarity of GPIO is Active high. If this property + is missing, the default assumed is Active low. + Other kernel-style properties, are currently not used.
@@ -36,4 +39,5 @@ fixed_regulator at 0 { regulator-max-microamp = <15000>; regulator-always-on; regulator-boot-on; + enable-active-high; };
drivers/power/regulator/fixed.c +6 -1
@@ -27,6 +27,8 @@ static int fixed_regulator_ofdata_to_platdata(struct udevice *dev)struct dm_regulator_uclass_platdata *uc_pdata;struct fixed_regulator_platdata *dev_pdata;struct gpio_desc *gpio; +const void *blob = gd->fdt_blob; +int node = dev->of_offset, flags =GPIOD_IS_OUT ;int ret; dev_pdata =dev_get_platdata (dev);
@@ -37,9 +39,12 @@ static int fixed_regulator_ofdata_to_platdata(struct udevice *dev)/* Set type to fixed */ uc_pdata->type =REGULATOR_TYPE_FIXED ; +if (fdtdec_get_bool (blob, node,"enable-active-high" )) + flags |=GPIOD_IS_OUT_ACTIVE ; +/* Get fixed regulator optional enable GPIO desc */ gpio = &dev_pdata->gpio; - ret =gpio_request_by_name (dev,"gpio" ,0 , gpio,GPIOD_IS_OUT ); + ret =gpio_request_by_name (dev,"gpio" ,0 , gpio, flags);if (ret) {debug ("Fixed regulator optional enable GPIO - not found! Error: %d\n" , ret);
Signature · 1 line
2.11.0
PATCH 1/1 regulator: fixed: Add support to handle enable-active-high DT property
Quoted 9 lines · Vignesh R
Add support to handle enable-active-high DT property. This property is used to drive the gpio controlling fixed regulator as active high when claiming gpio line.
Signed-off-by Vignesh R <[email protected]>--- doc/device-tree-bindings/regulator/fixed.txt | 4 ++++ drivers/power/regulator/fixed.c | 7 ++++++- 2 files changed, 10 insertions(+), 1 deletion(-)
Acked-by Simon Glass <[email protected]>
Quoted 6 lines · Vignesh R
Add support to handle enable-active-high DT property. This property is used to drive the gpio controlling fixed regulator as active high when claiming gpio line.
Signed-off-by Vignesh R <[email protected]>Acked-by Simon Glass <[email protected]>
Applied to u-boot/master, thanks!
Signature · 8 lines
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