[U-Boot] [PATCH] pinctrl: meson: Fix GPIO direction registers access

Neil Armstrong narmstrong at baylibre.com
Wed Dec 5 09:37:36 UTC 2018


On 05/12/2018 08:44, Jerome Brunet wrote:
> On Mon, 2018-12-03 at 18:00 +0000, Carlo Caione wrote:
>> The macros used to set the direction of the GPIO pins are misused,
>> resulting in a wrong behavior when trying to read the GPIO input level
>> from U-Boot.
>>
>> A better macro is also used when setting the output direction.
>>
>> Signed-off-by: Carlo Caione <ccaione at baylibre.com>
>> ---
>>  drivers/pinctrl/meson/pinctrl-meson.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/pinctrl/meson/pinctrl-meson.c
>> b/drivers/pinctrl/meson/pinctrl-meson.c
>> index 0bd6152803..b539749752 100644
>> --- a/drivers/pinctrl/meson/pinctrl-meson.c
>> +++ b/drivers/pinctrl/meson/pinctrl-meson.c
>> @@ -136,7 +136,7 @@ int meson_gpio_direction_input(struct udevice *dev,
>> unsigned int offset)
>>  	if (ret)
>>  		return ret;
>>  
>> -	clrsetbits_le32(priv->reg_gpio + reg, BIT(bit), 1);
>> +	setbits_le32(priv->reg_gpio + reg, BIT(bit));
>>  
>>  	return 0;
>>  }
>> @@ -152,7 +152,7 @@ int meson_gpio_direction_output(struct udevice *dev,
>>  	if (ret)
>>  		return ret;
>>  
>> -	clrsetbits_le32(priv->reg_gpio + reg, BIT(bit), 0);
>> +	clrbits_le32(priv->reg_gpio + reg, BIT(bit));
>>  
>>  	ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_OUT, &reg, &bit);
>>  	if (ret)
> 
> Reviewed-by: Jerome Brunet <jbrunet at baylibre.com>
> 

Thanks,

Applied !

Neil


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