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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2021-08-04 19:00:17 +0300
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2021-08-11 15:56:44 +0300
commitf973be8ad5dfa2ceac19657444ba57abc205218c (patch)
tree0236a466fe1728f91685782a001cb4c8f6902686 /drivers/gpio/gpio-dwapb.c
parentc1b291e96a6d27ac83938596829086945ff8a36e (diff)
downloadlinux-f973be8ad5dfa2ceac19657444ba57abc205218c.tar.xz
gpio: dwapb: Read GPIO base from gpio-base property
For backward compatibility with some legacy devices introduce a new (*) property gpio-base to read GPIO base. This will allow further cleaning up of the driver. *) Note, it's not new for the GPIO library since the mockup driver is using it already. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Serge Semin <fancer.lancer@gmail.com> Acked-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-dwapb.c')
-rw-r--r--drivers/gpio/gpio-dwapb.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 4c7153cb646c..674e91e69cc5 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -584,6 +584,10 @@ static struct dwapb_platform_data *dwapb_gpio_get_pdata(struct device *dev)
pp->gpio_base = -1;
+ /* For internal use only, new platforms mustn't exercise this */
+ if (is_software_node(fwnode))
+ fwnode_property_read_u32(fwnode, "gpio-base", &pp->gpio_base);
+
/*
* Only port A can provide interrupts in all configurations of
* the IP.