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Commit e4fcb1d6 authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
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mfd: arizona: Factor out read of device tree GPIOs 



This patch factors out the reading of GPIOs for the Arizona devices
into a helper function.

Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent c9eaa447

drivers/mfd/arizona-core.c

+22 −9
Original line number Diff line number Diff line
@@ -508,19 +508,32 @@ int arizona_of_get_type(struct device *dev) 
}

EXPORT_SYMBOL_GPL(arizona_of_get_type);



int arizona_of_get_named_gpio(struct arizona *arizona, const char *prop,

			      bool mandatory)

{

	int gpio;



	gpio = of_get_named_gpio(arizona->dev->of_node, prop, 0);

	if (gpio < 0) {

		if (mandatory)

			dev_err(arizona->dev,

				"Mandatory DT gpio %s missing/malformed: %d\n",

				prop, gpio);



		gpio = 0;

	}



	return gpio;

}

EXPORT_SYMBOL_GPL(arizona_of_get_named_gpio);



static int arizona_of_get_core_pdata(struct arizona *arizona)

{

	struct arizona_pdata *pdata = &arizona->pdata;

	int ret, i;



	arizona->pdata.reset = of_get_named_gpio(arizona->dev->of_node,

						 "wlf,reset", 0);

	if (arizona->pdata.reset < 0)

		arizona->pdata.reset = 0;



	arizona->pdata.ldoena = of_get_named_gpio(arizona->dev->of_node,

						  "wlf,ldoena", 0);

	if (arizona->pdata.ldoena < 0)

		arizona->pdata.ldoena = 0;

	pdata->reset = arizona_of_get_named_gpio(arizona, "wlf,reset", true);

	pdata->ldoena = arizona_of_get_named_gpio(arizona, "wlf,ldoena", true);



	ret = of_property_read_u32_array(arizona->dev->of_node,

					 "wlf,gpio-defaults",

include/linux/mfd/arizona/core.h

+3 −0
Original line number Diff line number Diff line
@@ -124,4 +124,7 @@ int wm5102_patch(struct arizona *arizona); 
int wm5110_patch(struct arizona *arizona);

int wm8997_patch(struct arizona *arizona);



extern int arizona_of_get_named_gpio(struct arizona *arizona, const char *prop,

				     bool mandatory);



#endif