Commit 787b64a4 authored Nov 19, 2019 by Russell King Committed by Linus Walleij Nov 21, 2019

gpio/mpc8xxx: fix qoriq GPIO reading



Qoriq requires the IBE register to be set to enable GPIO inputs to be
read.  Set it.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/E1iX3HC-00069N-0T@rmk-PC.armlinux.org.uk


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

parent 4e50573f

drivers/gpio/gpio-mpc8xxx.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -387,6 +387,9 @@ static int mpc8xxx_probe(struct platform_device *pdev)

		gc->to_irq = mpc8xxx_gpio_to_irq;

		if (of_device_is_compatible(np, "fsl,qoriq-gpio"))
		gc->write_reg(mpc8xxx_gc->regs + GPIO_IBE, 0xffffffff);

		ret = gpiochip_add_data(gc, mpc8xxx_gc);
		if (ret) {
		pr_err("%pOF: GPIO chip registration failed with status %d\n",

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