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Commit d4c9c7c1 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Greg Kroah-Hartman
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pinctrl: intel: Read back TX buffer state 



commit d68b42e30bbacd24354d644f430d088435b15e83 upstream.

In the same way as it's done in pinctrl-cherryview.c we would provide
a readback TX buffer state.

Fixes: 17fab473693 ("pinctrl: intel: Set pin direction properly")
Reported-by: default avatar"Bourque, Francis" <francis.bourque@intel.com>
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: default avatar"Bourque, Francis" <francis.bourque@intel.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Cc: Anthony de Boer <adb@adb.ca>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 019ea519

drivers/pinctrl/intel/pinctrl-intel.c

+6 −1
Original line number Diff line number Diff line
@@ -604,12 +604,17 @@ static int intel_gpio_get(struct gpio_chip *chip, unsigned offset) 
{

	struct intel_pinctrl *pctrl = gpiochip_get_data(chip);

	void __iomem *reg;

	u32 padcfg0;



	reg = intel_get_padcfg(pctrl, offset, PADCFG0);

	if (!reg)

		return -EINVAL;



	return !!(readl(reg) & PADCFG0_GPIORXSTATE);

	padcfg0 = readl(reg);

	if (!(padcfg0 & PADCFG0_GPIOTXDIS))

		return !!(padcfg0 & PADCFG0_GPIOTXSTATE);



	return !!(padcfg0 & PADCFG0_GPIORXSTATE);

}



static void intel_gpio_set(struct gpio_chip *chip, unsigned offset, int value)