Martin Fuzzey c9723750a6 w1: mxc_w1: Fix timeout resolution problem leading to bus error ...

On my platform (i.MX53) bus access sometimes fails with
	w1_search: max_slave_count 64 reached, will continue next search.

The reason is the use of jiffies to implement a 200us timeout in
mxc_w1_ds2_touch_bit().
On some platforms the jiffies timer resolution is insufficient for this.

Fix by replacing jiffies by ktime_get().

For consistency apply the same change to the other use of jiffies in
mxc_w1_ds2_reset_bus().

Fixes: f80b2581a706 ("w1: mxc_w1: Optimize mxc_w1_ds2_touch_bit()")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
Link: https://lore.kernel.org/r/1601455030-6607-1-git-send-email-martin.fuzzey@flowbird.group
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-10-02 15:53:25 +02:00

..

ds1wm.c

w1: ds1wm: add messages to make incorporation in mfd-drivers easier

2017-08-28 17:20:01 +02:00

ds2482.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441

2019-06-05 17:37:17 +02:00

ds2490.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

Kconfig

w1: add 1-wire master driver for IP block found in SGI ASICs

2019-09-04 14:34:31 +02:00

Makefile

w1: add 1-wire master driver for IP block found in SGI ASICs

2019-09-04 14:34:31 +02:00

matrox_w1.c

remove ioremap_nocache and devm_ioremap_nocache

2020-01-06 09:45:59 +01:00

mxc_w1.c

w1: mxc_w1: Fix timeout resolution problem leading to bus error

2020-10-02 15:53:25 +02:00

omap_hdq.c

w1: omap-hdq: print dev_err if irq flags are not cleared

2020-05-27 12:18:49 +02:00

sgi_w1.c

w1: sgi_w1: use devm_platform_ioremap_resource() to simplify code

2019-10-10 15:24:18 +02:00

w1-gpio.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19 17:09:55 +02:00