Linux-GPIO Archive on lore.kernel.org
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Serge Semin <fancer.lancer@gmail.com>,
	linux-gpio@vger.kernel.org,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	linux-kernel@vger.kernel.org, Lee Jones <lee.jones@linaro.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v1 2/6] gpio: dwapb: Read GPIO base from snps,gpio-base property
Date: Mon,  8 Jun 2020 16:42:56 +0300
Message-ID: <20200608134300.76091-3-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20200608134300.76091-1-andriy.shevchenko@linux.intel.com>

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@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 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


  parent reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-08 13:42 [PATCH v1 0/6] mfd: Make use of software nodes Andy Shevchenko
2020-06-08 13:42 ` [PATCH v1 1/6] gpio: dwapb: Replace irq_shared flag with fwnode type check Andy Shevchenko
2020-06-08 13:42 ` Andy Shevchenko [this message]
2020-06-10 11:26   ` [PATCH v1 2/6] gpio: dwapb: Read GPIO base from snps,gpio-base property Linus Walleij
2020-06-10 13:41     ` Andy Shevchenko
2020-06-08 13:42 ` [PATCH v1 3/6] mfd: core: Propagate software node group to the sub devices Andy Shevchenko
2020-06-08 19:25   ` Lee Jones
2020-06-09 12:40     ` Andy Shevchenko
2020-06-17 12:51       ` Lee Jones
2020-06-08 13:42 ` [PATCH v1 4/6] mfd: intel_quark_i2c_gpio: Convert to use software nodes Andy Shevchenko
2020-06-10 11:38   ` Linus Walleij
2020-06-10 13:43     ` Andy Shevchenko
2020-06-08 13:42 ` [PATCH v1 5/6] gpio: dwapb: Get rid of legacy platform data Andy Shevchenko
2020-06-10 11:39   ` Linus Walleij
2020-06-10 13:47     ` Andy Shevchenko
2020-06-08 13:43 ` [PATCH v1 6/6] gpio: dwapb: Define magic number for IRQ and GPIO lines Andy Shevchenko
2020-06-16 20:02 ` [PATCH v1 0/6] mfd: Make use of software nodes Serge Semin
2020-06-16 21:40   ` Andy Shevchenko
2020-06-16 22:56     ` Serge Semin
2020-06-18  8:56       ` Andy Shevchenko
2020-06-19 22:12         ` Serge Semin
2020-06-20 10:13           ` Andy Shevchenko
2020-06-23  1:49             ` Serge Semin
2020-06-24 12:43               ` Andy Shevchenko

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