From 787b64a43f7acacf8099329ea08872e663f1e74f Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 19 Nov 2019 13:10:38 +0000 Subject: 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 Link: https://lore.kernel.org/r/E1iX3HC-00069N-0T@rmk-PC.armlinux.org.uk Signed-off-by: Linus Walleij --- drivers/gpio/gpio-mpc8xxx.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index 81f0f31e04d9..f1e164cecff8 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -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", -- cgit v1.2.3