[PATCH v11 4/6] ARM: Exynos: switch to using generic cpufreq driver for Exynos4210/5250/5420

Amit Kucheria amit.kucheria at linaro.org
Tue Nov 11 22:03:53 PST 2014


Hi Thomas,

On Mon, Oct 20, 2014 at 5:11 PM, Thomas Abraham <thomas.ab at samsung.com> wrote:
> The new CPU clock type allows the use of generic CPUfreq drivers. So for
> Exynos4210/5250, switch to using generic cpufreq driver. For Exynos5420,
> which did not have CPUfreq driver support, enable the use of generic
> CPUfreq driver.
>
> Suggested-by: Tomasz Figa <tomasz.figa at gmail.com>
> Cc: Kukjin Kim <kgene.kim at samsung.com>
> Signed-off-by: Thomas Abraham <thomas.ab at samsung.com>
> Reviewed-by: Tomasz Figa <tomasz.figa at gmail.com>
> Tested-by: Javier Martinez Canillas <javier.martinez at collabora.co.uk>
> Tested-by: Chander Kashyap <k.chander at samsung.com>
> ---
>  arch/arm/mach-exynos/exynos.c |   24 +++++++++++++++++++++++-
>  1 files changed, 23 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
> index 6b283eb..a1be294 100644
> --- a/arch/arm/mach-exynos/exynos.c
> +++ b/arch/arm/mach-exynos/exynos.c
> @@ -282,6 +282,28 @@ static void __init exynos_init_irq(void)
>         exynos_map_pmu();
>  }
>
> +static const struct of_device_id exynos_cpufreq_matches[] = {
> +       { .compatible = "samsung,exynos5420", .data = "arm-bL-cpufreq-dt" },

While you're at it, can you add this to so we don't have to patch
kernels for the Chromebook2 and Odroid-XU3?

      { .compatible = "samsung,exynos5422", .data = "arm-bL-cpufreq-dt" },
      { .compatible = "samsung,exynos5800", .data = "arm-bL-cpufreq-dt" },


> +       { .compatible = "samsung,exynos5250", .data = "cpufreq-dt" },
> +       { .compatible = "samsung,exynos4210", .data = "cpufreq-dt" },
> +       { .compatible = "samsung,exynos5440", .data = "exynos5440-cpufreq" },
> +       { /* sentinel */ }



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