[PATCH] clk: tegra: provide dummy cpu car ops

Stephen Warren swarren at wwwdotorg.org
Wed Mar 6 18:42:53 EST 2013

On 03/06/2013 04:20 PM, Andrew Chew wrote:
>> Subject: [PATCH] clk: tegra: provide dummy cpu car ops
>> tegra_boot_secondary() relies on some of the car ops. This means having an
>> uninitialized tegra_cpu_car_ops will lead to an early boot panic.
>> Providing a dummy struct avoids this and makes adding Tegra114 clock
>> support in a bisectable way a lot easier.
>> --
>> Stephen,
>> Should this be a separate patch or should I make this part of new release of
>> the Tegra114 clock series?

I'm not sure if I answered this. Peter, I intend to apply this patch to
a branch right before the CCF, so there's no explicit need to include it
in the series, although if you do, that's fine.

>> diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c index

>>  /* Global data of Tegra CPU CAR ops */
>> -struct tegra_cpu_car_ops *tegra_cpu_car_ops;
> Sorry for bringing this up so late...
> Shouldn't the above be "struct tegra_cpu_car_ops tegra_cpu_car_ops;"?
>> +static struct tegra_cpu_car_ops *dummy_car_ops; struct
>> +tegra_cpu_car_ops *tegra_cpu_car_ops = &dummy_car_ops;

No, the value is used as a pointer in include/linux/clk/tegra.h, e.g.:


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