From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Fri, 13 Jul 2018 21:09:14 +0000 (+0200)
Subject: i2c: imx: use open drain for recovery GPIO
X-Git-Tag: v4.18-rc7~6^2
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=d2d0ad2aec4a8f3fd15e000ed903d6beddf39644;p=uclinux-h8%2Flinux.git

i2c: imx: use open drain for recovery GPIO

I2C is open drain, so request the GPIO accordingly, even if pinmux did
set it up correctly for in-kernel users in this case.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 39cfd98c7b23..498c5e891649 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1009,7 +1009,7 @@ static int i2c_imx_init_recovery_info(struct imx_i2c_struct *i2c_imx,
 	i2c_imx->pinctrl_pins_gpio = pinctrl_lookup_state(i2c_imx->pinctrl,
 			"gpio");
 	rinfo->sda_gpiod = devm_gpiod_get(&pdev->dev, "sda", GPIOD_IN);
-	rinfo->scl_gpiod = devm_gpiod_get(&pdev->dev, "scl", GPIOD_OUT_HIGH);
+	rinfo->scl_gpiod = devm_gpiod_get(&pdev->dev, "scl", GPIOD_OUT_HIGH_OPEN_DRAIN);
 
 	if (PTR_ERR(rinfo->sda_gpiod) == -EPROBE_DEFER ||
 	    PTR_ERR(rinfo->scl_gpiod) == -EPROBE_DEFER) {