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i2c: at91: fix clk_offset for sama5d2

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[ Upstream commit b1ac6704493fa14b5dc19eb6b69a73932361a131 ]

In SAMA5D2 datasheet, TWIHS_CWGR register rescription mentions clock
offset of 3 cycles (compared to 4 in eg. SAMA5D3).

Cc: stable@vger.kernel.org # 5.2.x
[needs applying to i2c-at91.c instead for earlier kernels]
Fixes: 0ef6f3213d ("i2c: at91: add support for new alternative command mode")
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Michał Mirosław 2019-07-22 21:05:56 +02:00 • committed by Greg Kroah-Hartman
parent 4c9170b55f
commit b8ad18a10f
1 changed files with 1 additions and 1 deletions

2
drivers/i2c/busses/i2c-at91.c
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@ -914,7 +914,7 @@ static struct at91_twi_pdata sama5d4_config = {
static struct at91_twi_pdata sama5d2_config = {
.clk_max_div = 7,
.clk_offset = 4,
.clk_offset = 3,
.has_unre_flag = true,
.has_alt_cmd = true,
.has_hold_field = true,