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Message-Id: <1412355319-18946-1-git-send-email-david.a.cohen@linux.intel.com> Date: Fri, 3 Oct 2014 09:55:19 -0700 From: David Cohen <david.a.cohen@...ux.intel.com> To: linus.walleij@...aro.org Cc: linux-kernel@...r.kernel.org, David Cohen <david.a.cohen@...ux.intel.com> Subject: [PATCH] pinctrl: baytrail: show output gpio state correctly on Intel Baytrail Even if a gpio pin is set to output, we still need to set INPUT_EN bit to be able to read its value. Without this change, we'll always read low level state. Signed-off-by: David Cohen <david.a.cohen@...ux.intel.com> --- drivers/pinctrl/pinctrl-baytrail.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/pinctrl-baytrail.c b/drivers/pinctrl/pinctrl-baytrail.c index e12e5b07f6d7..c23d8ded936d 100644 --- a/drivers/pinctrl/pinctrl-baytrail.c +++ b/drivers/pinctrl/pinctrl-baytrail.c @@ -318,7 +318,7 @@ static int byt_gpio_direction_output(struct gpio_chip *chip, "Potential Error: Setting GPIO with direct_irq_en to output"); reg_val = readl(reg) | BYT_DIR_MASK; - reg_val &= ~BYT_OUTPUT_EN; + reg_val &= ~(BYT_OUTPUT_EN | BYT_INPUT_EN); if (value) writel(reg_val | BYT_LEVEL, reg); -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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