diff options
| author |   Russell King <rmk+kernel@armlinux.org.uk> | 2019-11-19 13:10:38 +0000 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2019-11-21 14:30:08 +0100 |
| commit | 787b64a43f7acacf8099329ea08872e663f1e74f (patch) | |
| tree | e2f031d523c8dac419c65391c39351d5edeee1a8 /drivers/gpio | |
| parent | gpio: mpc8xxx: Don't overwrite default irq_set_type callback (diff) | |
| download | linux-dev-787b64a43f7acacf8099329ea08872e663f1e74f.tar.xz linux-dev-787b64a43f7acacf8099329ea08872e663f1e74f.zip | |
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>
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 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", |