openwrtv3/target/linux/brcm2708/patches-4.9/950-0111-i2c-bcm2835-Support-i2c-dev-ioctl-I2C_TIMEOUT.patch
Koen Vandeputte 7e20e4ab96 kernel: bump 4.9 to 4.9.137
Refreshed all patches.

Removed upstreamed hunks in:
- 703-phy-support-layerscape.patch

Compile-tested on: ar71xx, layerscape
Runtime-tested on: ar71xx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-11-14 16:27:43 +01:00

37 lines
1.2 KiB
Diff

From 0c2744e901150b27a60bded1acb058ce26709d5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Fri, 23 Sep 2016 04:57:17 +0200
Subject: [PATCH] i2c: bcm2835: Support i2c-dev ioctl I2C_TIMEOUT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Use i2c_adapter->timeout for the completion timeout value. The core
default is 1 second.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
---
drivers/i2c/busses/i2c-bcm2835.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/i2c/busses/i2c-bcm2835.c
+++ b/drivers/i2c/busses/i2c-bcm2835.c
@@ -53,8 +53,6 @@
#define BCM2835_I2C_CDIV_MIN 0x0002
#define BCM2835_I2C_CDIV_MAX 0xFFFE
-#define BCM2835_I2C_TIMEOUT (msecs_to_jiffies(1000))
-
struct bcm2835_i2c_dev {
struct device *dev;
void __iomem *regs;
@@ -244,7 +242,7 @@ static int bcm2835_i2c_xfer(struct i2c_a
bcm2835_i2c_start_transfer(i2c_dev);
time_left = wait_for_completion_timeout(&i2c_dev->completion,
- BCM2835_I2C_TIMEOUT);
+ adap->timeout);
if (!time_left) {
bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C,
BCM2835_I2C_C_CLEAR);