All of lore.kernel.org
 help / color / mirror / Atom feed
From: Javier Martinez Canillas <javier.martinez-ZGY8ohtN/8pPYcu2f3hruQ@public.gmane.org>
To: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: "Wolfram Sang" <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>,
	"Dmitry Torokhov"
	<dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"Doug Anderson"
	<dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	"Simon Glass" <sjg-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	"Bill Richardson"
	<wfrichar-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	"Andrew Bresticker"
	<abrestic-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	"Derek Basehore"
	<dbasehore-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	"Todd Broch" <tbroch-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	"Olof Johansson" <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>,
	"Andreas Färber" <afaerber-l3A5Bk7waGM@public.gmane.org>,
	linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	"Javier Martinez Canillas"
	<javier.martinez-ZGY8ohtN/8pPYcu2f3hruQ@public.gmane.org>
Subject: [RESEND PATCH 2/7] i2c: i2c-cros-ec-tunnel: Set retries to 3
Date: Wed, 20 Aug 2014 14:13:27 +0200	[thread overview]
Message-ID: <1408536812-7836-3-git-send-email-javier.martinez@collabora.co.uk> (raw)
In-Reply-To: <1408536812-7836-1-git-send-email-javier.martinez-ZGY8ohtN/8pPYcu2f3hruQ@public.gmane.org>

From: Derek Basehore <dbasehore-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>

Since the i2c bus can get wedged on the EC sometimes, set the number of retries
to 3. Since we un-wedge the bus immediately after the wedge happens, this is the
correct fix since only one transfer will fail.

Signed-off-by: Derek Basehore <dbasehore-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
Reviewed-by: Doug Anderson <dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
Acked-by: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez-ZGY8ohtN/8pPYcu2f3hruQ@public.gmane.org>
---
 drivers/i2c/busses/i2c-cros-ec-tunnel.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
index 05e033c..a4411da 100644
--- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c
+++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
@@ -16,6 +16,8 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
+#define I2C_MAX_RETRIES 3
+
 /**
  * struct ec_i2c_device - Driver data for I2C tunnel
  *
@@ -290,6 +292,7 @@ static int ec_i2c_probe(struct platform_device *pdev)
 	bus->adap.algo_data = bus;
 	bus->adap.dev.parent = &pdev->dev;
 	bus->adap.dev.of_node = np;
+	bus->adap.retries = I2C_MAX_RETRIES;
 
 	err = i2c_add_adapter(&bus->adap);
 	if (err) {
-- 
2.0.1

  parent reply	other threads:[~2014-08-20 12:13 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-20 12:13 [RESEND PATCH 0/7] Second batch of cleanups for cros_ec Javier Martinez Canillas
2014-08-20 12:13 ` [RESEND PATCH 1/7] mfd: cros_ec: Delay for 50ms when we see EC_CMD_REBOOT_EC Javier Martinez Canillas
2014-08-21 13:37   ` Lee Jones
2014-08-21 13:49     ` Javier Martinez Canillas
     [not found] ` <1408536812-7836-1-git-send-email-javier.martinez-ZGY8ohtN/8pPYcu2f3hruQ@public.gmane.org>
2014-08-20 12:13   ` Javier Martinez Canillas [this message]
2014-08-20 12:13   ` [RESEND PATCH 3/7] mfd: cros_ec: stop calling ->cmd_xfer() directly Javier Martinez Canillas
2014-08-20 22:33     ` Doug Anderson
2014-08-21 14:08     ` Lee Jones
2014-08-20 12:13   ` [RESEND PATCH 6/7] mfd: cros_ec: Instantiate sub-devices from device tree Javier Martinez Canillas
     [not found]     ` <1408536812-7836-7-git-send-email-javier.martinez-ZGY8ohtN/8pPYcu2f3hruQ@public.gmane.org>
2014-08-21 14:25       ` Lee Jones
2014-08-22 11:27         ` Javier Martinez Canillas
2014-08-20 12:13   ` [RESEND PATCH 7/7] Input: cros_ec_keyb: Optimize ghosting algorithm Javier Martinez Canillas
2014-08-20 12:13 ` [RESEND PATCH 4/7] mfd: cros_ec: move locking into cros_ec_cmd_xfer Javier Martinez Canillas
2014-08-20 22:36   ` Doug Anderson
2014-08-21 10:24     ` Javier Martinez Canillas
2014-08-21 14:09   ` Lee Jones
2014-08-20 12:13 ` [RESEND PATCH 5/7] mfd: cros_ec: wait for completion of commands that return IN_PROGRESS Javier Martinez Canillas
     [not found]   ` <1408536812-7836-6-git-send-email-javier.martinez-ZGY8ohtN/8pPYcu2f3hruQ@public.gmane.org>
2014-08-21 14:21     ` Lee Jones
2014-08-22 11:24       ` Javier Martinez Canillas

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=1408536812-7836-3-git-send-email-javier.martinez@collabora.co.uk \
    --to=javier.martinez-zgy8ohtn/8ppycu2f3hruq@public.gmane.org \
    --cc=abrestic-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org \
    --cc=afaerber-l3A5Bk7waGM@public.gmane.org \
    --cc=dbasehore-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org \
    --cc=dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org \
    --cc=dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
    --cc=lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org \
    --cc=linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org \
    --cc=sjg-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org \
    --cc=tbroch-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org \
    --cc=wfrichar-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org \
    --cc=wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org \
    --subject='Re: [RESEND PATCH 2/7] i2c: i2c-cros-ec-tunnel: Set retries to 3' \
    /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

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.