diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2019-11-19 16:10:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-04 21:18:18 +0300 |
| commit | 3fd185ba5688fbb5191213ab849f03940f3012c6 (patch) | |
| tree | 3239700124b6a0f78754889cc8be80b2a6c4746c /drivers/gpio | |
| parent | 02270fc85b51a514b55ae6f6b3050de34e159e34 (diff) | |
| download | linux-3fd185ba5688fbb5191213ab849f03940f3012c6.tar.xz | |
gpio/mpc8xxx: fix qoriq GPIO reading
[ Upstream commit 787b64a43f7acacf8099329ea08872e663f1e74f ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-mpc8xxx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index 16a47de29c94..b863421ae730 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -386,6 +386,9 @@ 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", |