From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-i2c@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org, kernel@pengutronix.de,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Jarkko Nikula <jarkko.nikula@linux.intel.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH/RFT 1/6] i2c: designware: use open drain for recovery GPIO
Date: Fri, 13 Jul 2018 23:09:13 +0200 [thread overview]
Message-ID: <20180713210920.3648-2-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20180713210920.3648-1-wsa+renesas@sang-engineering.com>
I2C is open drain, so set up the GPIO accordingly.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
drivers/i2c/busses/i2c-designware-master.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
index fc7c255c80af..a546db80f53e 100644
--- a/drivers/i2c/busses/i2c-designware-master.c
+++ b/drivers/i2c/busses/i2c-designware-master.c
@@ -665,7 +665,7 @@ static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev)
struct gpio_desc *gpio;
int r;
- gpio = devm_gpiod_get(dev->dev, "scl", GPIOD_OUT_HIGH);
+ gpio = devm_gpiod_get(dev->dev, "scl", GPIOD_OUT_HIGH_OPEN_DRAIN);
if (IS_ERR(gpio)) {
r = PTR_ERR(gpio);
if (r == -ENOENT || r == -ENOSYS)
--
2.11.0
next prev parent reply other threads:[~2018-07-13 21:09 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-13 21:09 [PATCH/RFT 0/6] i2c: recovery: fix GPIO usage for recovery Wolfram Sang
2018-07-13 21:09 ` Wolfram Sang
2018-07-13 21:09 ` Wolfram Sang
2018-07-13 21:09 ` Wolfram Sang [this message]
2018-07-16 0:47 ` [PATCH/RFT 1/6] i2c: designware: use open drain for recovery GPIO Phil Reid
2018-07-17 9:09 ` Wolfram Sang
2018-07-17 9:27 ` Phil Reid
2018-07-24 7:26 ` Wolfram Sang
2018-07-25 3:26 ` Phil Reid
2018-07-13 21:09 ` [PATCH/RFT 2/6] i2c: imx: " Wolfram Sang
2018-07-23 12:47 ` Lucas Stach
2018-07-24 7:28 ` Wolfram Sang
2018-07-24 13:01 ` Wolfram Sang
2018-07-13 21:09 ` [PATCH/RFT 3/6] i2c: designware: set SDA as output for recovery Wolfram Sang
2018-07-13 21:09 ` [PATCH/RFT 4/6] i2c: davinci: " Wolfram Sang
2018-07-13 21:09 ` Wolfram Sang
2018-07-13 21:09 ` [PATCH/RFT 5/6] i2c: imx: " Wolfram Sang
2018-07-13 21:09 ` [PATCH/RFT 6/6] i2c: recovery: remove bogus check if SDA GPIO is set to output Wolfram Sang
2018-07-16 9:29 ` Ulrich Hecht
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180713210920.3648-2-wsa+renesas@sang-engineering.com \
--to=wsa+renesas@sang-engineering.com \
--cc=andriy.shevchenko@linux.intel.com \
--cc=jarkko.nikula@linux.intel.com \
--cc=kernel@pengutronix.de \
--cc=linux-i2c@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-renesas-soc@vger.kernel.org \
--cc=mika.westerberg@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.