diff options
| author | Vignesh R <vigneshr@ti.com> | 2016-12-07 16:55:06 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-12-27 08:22:57 -0500 |
| commit | bd2e9714c851770652253fab858cb50ecd95d329 (patch) | |
| tree | f2fc4c7c6ad8e44367e7b5f20c5c6a6f3b1c3287 | |
| parent | d26a38fd615466e2d62baa577423ac06d2601d8f (diff) | |
| download | u-boot-imx-bd2e9714c851770652253fab858cb50ecd95d329.zip u-boot-imx-bd2e9714c851770652253fab858cb50ecd95d329.tar.gz u-boot-imx-bd2e9714c851770652253fab858cb50ecd95d329.tar.bz2 | |
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 <vigneshr@ti.com>
Acked-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | doc/device-tree-bindings/regulator/fixed.txt | 4 | ||||
| -rw-r--r-- | drivers/power/regulator/fixed.c | 7 |
2 files changed, 10 insertions, 1 deletions
diff --git a/doc/device-tree-bindings/regulator/fixed.txt b/doc/device-tree-bindings/regulator/fixed.txt index 8a0d002..5fd9033 100644 --- a/doc/device-tree-bindings/regulator/fixed.txt +++ b/doc/device-tree-bindings/regulator/fixed.txt @@ -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@0 { regulator-max-microamp = <15000>; regulator-always-on; regulator-boot-on; + enable-active-high; }; diff --git a/drivers/power/regulator/fixed.c b/drivers/power/regulator/fixed.c index 62dc47f..3d2d908 100644 --- a/drivers/power/regulator/fixed.c +++ b/drivers/power/regulator/fixed.c @@ -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); |