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Date: Mon, 8 Jun 2020 16:42:56 +0300 From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> To: Serge Semin <fancer.lancer@...il.com>, linux-gpio@...r.kernel.org, Linus Walleij <linus.walleij@...aro.org>, Bartosz Golaszewski <bgolaszewski@...libre.com>, linux-kernel@...r.kernel.org, Lee Jones <lee.jones@...aro.org> Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> Subject: [PATCH v1 2/6] gpio: dwapb: Read GPIO base from snps,gpio-base property For backward compatibility with some legacy devices, introduce a new property snps,gpio-base to read GPIO base. Don't advertise to discourage users from utilizing it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.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 a7ca72086511..e3d7589434eb 100644 --- a/drivers/gpio/gpio-dwapb.c +++ b/drivers/gpio/gpio-dwapb.c @@ -599,7 +599,8 @@ static struct dwapb_platform_data *dwapb_gpio_get_pdata(struct device *dev) pp->ngpio = 32; } - pp->gpio_base = -1; + if (fwnode_property_read_u32(fwnode, "snps,gpio-base", &pp->gpio_base)) + pp->gpio_base = -1; /* * Only port A can provide interrupts in all configurations of -- 2.27.0.rc2
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