d4b8d51580
As usual, this patches were taken (and rebased) from https://github.com/raspberrypi/linux/commits/rpi-4.1.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> SVN-Revision: 47922
39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 625b5c018f512e17512df16f57b6393b771f4996 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
Date: Tue, 30 Jun 2015 10:28:59 +0100
|
|
Subject: [PATCH 093/222] i2c-bcm2708: Increase timeouts to allow larger
|
|
transfers
|
|
|
|
Use the timeout value provided by the I2C_TIMEOUT ioctl when waiting
|
|
for completion. The default timeout is 1 second.
|
|
|
|
See: https://github.com/raspberrypi/linux/issues/260
|
|
---
|
|
drivers/i2c/busses/i2c-bcm2708.c | 7 +++----
|
|
1 file changed, 3 insertions(+), 4 deletions(-)
|
|
|
|
--- a/drivers/i2c/busses/i2c-bcm2708.c
|
|
+++ b/drivers/i2c/busses/i2c-bcm2708.c
|
|
@@ -67,10 +67,9 @@
|
|
#define BSC_S_DONE 0x00000002
|
|
#define BSC_S_TA 0x00000001
|
|
|
|
-#define I2C_TIMEOUT_MS 150
|
|
-#define I2C_WAIT_LOOP_COUNT 40
|
|
+#define I2C_WAIT_LOOP_COUNT 200
|
|
|
|
-#define DRV_NAME "bcm2708_i2c"
|
|
+#define DRV_NAME "bcm2708_i2c"
|
|
|
|
static unsigned int baudrate = CONFIG_I2C_BCM2708_BAUDRATE;
|
|
module_param(baudrate, uint, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
|
|
@@ -305,7 +304,7 @@ static int bcm2708_i2c_master_xfer(struc
|
|
goto error_timeout;
|
|
}
|
|
|
|
- ret = wait_for_completion_timeout(&bi->done, msecs_to_jiffies(I2C_TIMEOUT_MS));
|
|
+ ret = wait_for_completion_timeout(&bi->done, adap->timeout);
|
|
if (ret == 0) {
|
|
dev_err(&adap->dev, "transfer timed out\n");
|
|
goto error_timeout;
|