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pinctrl: mediatek: add input-enable and direction setting for eint resources

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To use pin as eint, user should make sure that:
1. pin is set to right mode, this is done in .irq_request_resources
implementation already.
2. direction of the pin is input, which should call GPIO API to set
pin to input gpio.
We add what step 2 do to .irq_request_resources so that user doesn't
need call GPIO API any more when pin for eint usage.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Biao Huang 2016-02-17 03:16:34 +08:00 committed by Linus Walleij
parent 31763d3b36
commit b1c5b77035
1 changed files with 4 additions and 0 deletions
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4
drivers/pinctrl/mediatek/pinctrl-mtk-common.c
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@ -863,6 +863,10 @@ static int mtk_pinctrl_irq_request_resources(struct irq_data *d)
/* set mux to INT mode */
mtk_pmx_set_mode(pctl->pctl_dev, pin->pin.number, pin->eint.eintmux);
/* set gpio direction to input */
mtk_pmx_gpio_set_direction(pctl->pctl_dev, NULL, pin->pin.number, true);
/* set input-enable */
mtk_pconf_set_ies_smt(pctl, pin->pin.number, 1, PIN_CONFIG_INPUT_ENABLE);
return 0;
}