On Wed, Apr 23, 2014 at 10:25:52AM +0100, Chander Kashyap wrote:
> Add "samsung,exynos5420" compatible string to initialize generic
> big-little cpuidle driver for Exynos5420.
>
> Signed-off-by: Chander Kashyap <chander.kashyap@xxxxxxxxxx>
> Signed-off-by: Chander Kashyap <k.chander@xxxxxxxxxxx>
> Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
> ---
> drivers/cpuidle/cpuidle-big_little.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c
> index b45fc62..d0fac53 100644
> --- a/drivers/cpuidle/cpuidle-big_little.c
> +++ b/drivers/cpuidle/cpuidle-big_little.c
> @@ -170,7 +170,8 @@ static int __init bl_idle_init(void)
> /*
> * Initialize the driver just for a compliant set of machines
> */
> - if (!of_machine_is_compatible("arm,vexpress,v2p-ca15_a7"))
> + if (!of_machine_is_compatible("arm,vexpress,v2p-ca15_a7") &&
> + (!of_machine_is_compatible("samsung,exynos5420")))
> return -ENODEV;
We should handle the string matching differently, we can't keep adding
comparisons.
Daniel raised the point already: what about the idle tables (data and
number of states ?). TC2 has just a cluster state, and specific
latencies, which are highly unlikely to be correct for this platform.
Lorenzo
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