On 25/09/15 06:42, Tero Kristo wrote:
> On 09/23/2015 08:30 PM, Tony Lindgren wrote:
>> * Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx> [150923 07:53]:
>>> On the OMAP AM3517 platform the uart4_ick gets registered
>>> twice, causing any power managment to /dev/ttyO3 to fail
>>> when trying to wake the device up.
>>>
>>> This solves the following oops:
>>>
>>> [] Unhandled fault: external abort on non-linefetch (0x1028) at
>>> 0xfa09e008
>>> [] PC is at serial_omap_pm+0x48/0x15c
>>> [] LR is at _raw_spin_unlock_irqrestore+0x30/0x5c
>>
>> No uart4 on 34xx/35xx, that got introduced with 36xx so:
>>
>> Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
>>
>>> Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
>>> ---
>>> drivers/clk/ti/clk-3xxx.c | 1 -
>>> 1 file changed, 1 deletion(-)
>>>
>>> diff --git a/drivers/clk/ti/clk-3xxx.c b/drivers/clk/ti/clk-3xxx.c
>>> index 5e12f32..2e7ef1f 100644
>>> --- a/drivers/clk/ti/clk-3xxx.c
>>> +++ b/drivers/clk/ti/clk-3xxx.c
>>> @@ -374,7 +374,6 @@ static struct ti_dt_clk omap3xxx_clks[] = {
>>> DT_CLK(NULL, "gpio2_ick", "gpio2_ick"),
>>> DT_CLK(NULL, "wdt3_ick", "wdt3_ick"),
>>> DT_CLK(NULL, "uart3_ick", "uart3_ick"),
>>> - DT_CLK(NULL, "uart4_ick", "uart4_ick"),
>>> DT_CLK(NULL, "gpt9_ick", "gpt9_ick"),
>>> DT_CLK(NULL, "gpt8_ick", "gpt8_ick"),
>>> DT_CLK(NULL, "gpt7_ick", "gpt7_ick"),
>
> NAK.
>
> This patch is actually only partially correct, it removes the uart4_ick
> alias for omap36xx also. It should be added back to the omap36xx clks
> array. Care to post a v2?
Thankyou for the feedback. I'll update, but do not have a device to test.
--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius
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