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pinctrl: lynxpoint: Assume 2 bits for mode selector

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New generations can use 2 bits for mode selector.
Update the code to support it.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2019-11-25 19:15:34 +02:00
parent a718e68ede
commit 76347d7ad2
1 changed files with 4 additions and 2 deletions
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6
drivers/pinctrl/intel/pinctrl-lynxpoint.c
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@ -38,7 +38,9 @@
#define TRIG_SEL_BIT BIT(4) /* 0: Edge, 1: Level */
#define INT_INV_BIT BIT(3) /* Invert interrupt triggering */
#define DIR_BIT BIT(2) /* 0: Output, 1: Input */
#define USE_SEL_BIT BIT(0) /* 0: Native, 1: GPIO */
#define USE_SEL_MASK GENMASK(1, 0) /* 0: Native, 1: GPIO, ... */
#define USE_SEL_NATIVE (0 << 0)
#define USE_SEL_GPIO (1 << 0)
/* LP_CONFIG2 reg bits */
#define GPINDIS_BIT BIT(2) /* disable input sensing */
@ -111,7 +113,7 @@ static int lp_gpio_request(struct gpio_chip *chip, unsigned offset)
return -EBUSY;
}
/* Fail if pin is in alternate function mode (not GPIO mode) */
if (!(inl(reg) & USE_SEL_BIT))
if ((inl(reg) & USE_SEL_MASK) != USE_SEL_GPIO)
return -ENODEV;
/* enable input sensing */