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Message-Id: <20190708150524.275620662@linuxfoundation.org>
Date: Mon, 8 Jul 2019 17:13:00 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Linus Walleij <linus.walleij@...aro.org>,
Chris Packham <chris.packham@...iedtelesis.co.nz>,
Wolfram Sang <wsa@...-dreams.de>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 33/90] i2c: pca-platform: Fix GPIO lookup code
[ Upstream commit a0cac264a86fbf4d6cb201fbbb73c1d335e3248a ]
The devm_gpiod_request_gpiod() call will add "-gpios" to
any passed connection ID before looking it up.
I do not think the reset GPIO on this platform is named
"reset-gpios-gpios" but rather "reset-gpios" in the device
tree, so fix this up so that we get a proper reset GPIO
handle.
Also drop the inclusion of the legacy GPIO header.
Fixes: 0e8ce93bdceb ("i2c: pca-platform: add devicetree awareness")
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Reviewed-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@...-dreams.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/i2c/busses/i2c-pca-platform.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index de3fe6e828cb..f50afa8e3cba 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -21,7 +21,6 @@
#include <linux/platform_device.h>
#include <linux/i2c-algo-pca.h>
#include <linux/platform_data/i2c-pca-platform.h>
-#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/io.h>
#include <linux/of.h>
@@ -173,7 +172,7 @@ static int i2c_pca_pf_probe(struct platform_device *pdev)
i2c->adap.dev.parent = &pdev->dev;
i2c->adap.dev.of_node = np;
- i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset-gpios", GPIOD_OUT_LOW);
+ i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(i2c->gpio))
return PTR_ERR(i2c->gpio);
--
2.20.1
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