[PATCH v1 2/4] gpio: dwapb: Read GPIO base from gpio-base property
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: 2021-07-26 12:54:23
Also in:
lkml
Subsystem:
gpio subsystem, synopsys designware apb gpio driver, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Hoan Tran, Linus Torvalds
For backward compatibility with some legacy devices introduce a new (*) property gpio-base to read GPIO base. This will allow further cleanup of the driver. *) Note, it's not new for GPIO library since mockup driver is using it already. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/gpio/gpio-dwapb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index f6ae69d5d644..e3011d4e17b0 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c@@ -581,7 +581,8 @@ static struct dwapb_platform_data *dwapb_gpio_get_pdata(struct device *dev) pp->ngpio = DWAPB_MAX_GPIOS; } - pp->gpio_base = -1; + if (fwnode_property_read_u32(fwnode, "gpio-base", &pp->gpio_base)) + pp->gpio_base = -1; /* * Only port A can provide interrupts in all configurations of
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2.30.2