On pią, 2015-01-16 at 17:59 +0900, James Ban wrote:
> This is a patch for adding gpio control about enable/disable of buck.
>
> Signed-off-by: James Ban <[email protected]>
> ---
>
> This patch is relative to linux-next repository tag next-20150115.
>
>
> .../devicetree/bindings/regulator/da9211.txt | 7 ++++++-
> drivers/regulator/da9211-regulator.c | 6 ++++++
> include/linux/regulator/da9211.h | 1 +
> 3 files changed, 13 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/regulator/da9211.txt
> b/Documentation/devicetree/bindings/regulator/da9211.txt
> index 240019a..ad777ac 100644
> --- a/Documentation/devicetree/bindings/regulator/da9211.txt
> +++ b/Documentation/devicetree/bindings/regulator/da9211.txt
> @@ -11,6 +11,7 @@ Required properties:
> BUCKA and BUCKB.
>
> Optional properties:
> +- buck-enable-platform-gpio: platform gpio for control of BUCKA/BUCKB.
> - Any optional property defined in regulator.txt
>
> Example 1) DA9211
> @@ -27,6 +28,7 @@ Example 1) DA9211
> regulator-max-microvolt = <1570000>;
> regulator-min-microamp = <2000000>;
> regulator-max-microamp = <5000000>;
> + buck-enable-platform-gpio = <&gpio 27 0>;
> };
> BUCKB {
> regulator-name = "VBUCKB";
> @@ -34,11 +36,12 @@ Example 1) DA9211
> regulator-max-microvolt = <1570000>;
> regulator-min-microamp = <2000000>;
> regulator-max-microamp = <5000000>;
> + buck-enable-platform-gpio = <&gpio 17 0>;
The suffix was changed to "-gpios".
(Documentation/devicetree/bindings/gpio/gpio.txt)
> };
> };
> };
>
> -Example 2) DA92113
> +Example 2) DA9213
> pmic: da9213@68 {
> compatible = "dlg,da9213";
> reg = <0x68>;
> @@ -51,6 +54,7 @@ Example 2) DA92113
> regulator-max-microvolt = <1570000>;
> regulator-min-microamp = <3000000>;
> regulator-max-microamp = <6000000>;
> + buck-enable-platform-gpio = <&gpio 27 0>;
> };
> BUCKB {
> regulator-name = "VBUCKB";
> @@ -58,6 +62,7 @@ Example 2) DA92113
> regulator-max-microvolt = <1570000>;
> regulator-min-microamp = <3000000>;
> regulator-max-microamp = <6000000>;
> + buck-enable-platform-gpio = <&gpio 17 0>;
> };
> };
> };
> diff --git a/drivers/regulator/da9211-regulator.c
> b/drivers/regulator/da9211-regulator.c
> index c78d210..d299b0f 100644
> --- a/drivers/regulator/da9211-regulator.c
> +++ b/drivers/regulator/da9211-regulator.c
> @@ -24,6 +24,7 @@
> #include <linux/regmap.h>
> #include <linux/irq.h>
> #include <linux/interrupt.h>
> +#include <linux/of_gpio.h>
> #include <linux/regulator/of_regulator.h>
> #include <linux/regulator/da9211.h>
> #include "da9211-regulator.h"
> @@ -277,6 +278,10 @@ static struct da9211_pdata *da9211_parse_regulators_dt(
>
> pdata->init_data[n] = da9211_matches[i].init_data;
>
> + pdata->gpio_ren[n] =
> + of_get_named_gpio(da9211_matches[i].of_node,
> + "buck-enable-platform-gpio", 0);
> +
> n++;
> }
>
> @@ -365,6 +370,7 @@ static int da9211_regulator_init(struct da9211 *chip)
> config.driver_data = chip;
> config.regmap = chip->regmap;
> config.of_node = chip->dev->of_node;
> + config.ena_gpio = chip->pdata->gpio_ren[i];
Probably you want to set also config.ena_gpio_initialized because '0'
could be a valid GPIO. However that could be inconsistent with
platform_data for your driver so it's up to you.
Don't you have to enable the GPIO usage in the device (switch from I2C
control to GPIO)?
Best regards,
Krzysztof
>
> chip->rdev[i] = devm_regulator_register(chip->dev,
> &da9211_regulators[i], &config);
> diff --git a/include/linux/regulator/da9211.h
> b/include/linux/regulator/da9211.h
> index 5479394..530b5ea 100644
> --- a/include/linux/regulator/da9211.h
> +++ b/include/linux/regulator/da9211.h
> @@ -32,6 +32,7 @@ struct da9211_pdata {
> * 2 : 2 phase 2 buck
> */
> int num_buck;
> + int gpio_ren[DA9211_MAX_REGULATORS];
> struct regulator_init_data *init_data[DA9211_MAX_REGULATORS];
> };
> #endif
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
