On Tuesday 20 of August 2013 19:35:36 Tomasz Figa wrote:
> Exynos cpufreq drivers does not support device tree based regulator
> lookup, so it can get the VDD ARM regulator only by its name. To get
> cpufreq working for now, this patch works this around by renaming the
> regulator in board dts files to vdd_arm, which is the name expected by
> the driver.
>
> Signed-off-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> ---
> arch/arm/boot/dts/exynos4210-origen.dts | 7 ++++++-
> arch/arm/boot/dts/exynos4210-trats.dts | 7 ++++++-
> 2 files changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/exynos4210-origen.dts
> b/arch/arm/boot/dts/exynos4210-origen.dts index 382d8c7..46378fe 100644
> --- a/arch/arm/boot/dts/exynos4210-origen.dts
> +++ b/arch/arm/boot/dts/exynos4210-origen.dts
> @@ -192,7 +192,12 @@
> };
>
> buck1_reg: BUCK1 {
> - regulator-name = "VDD_ARM_1.2V";
> + /*
> + * HACK: The real name is VDD_ARM_1.2V,
> + * but exynos-cpufreq does not support
> + * DT-based regulator lookup yet.
> + */
> + regulator-name = "vdd_arm";
> regulator-min-microvolt = <950000>;
> regulator-max-microvolt = <1350000>;
> regulator-always-on;
> diff --git a/arch/arm/boot/dts/exynos4210-trats.dts
> b/arch/arm/boot/dts/exynos4210-trats.dts index 1c164f2..63cc571 100644
> --- a/arch/arm/boot/dts/exynos4210-trats.dts
> +++ b/arch/arm/boot/dts/exynos4210-trats.dts
> @@ -290,7 +290,12 @@
> };
>
> varm_breg: BUCK1 {
> - regulator-name = "VARM_1.2V_C210";
> + /*
> + * HACK: The real name is VARM_1.2V_C210,
> + * but exynos-cpufreq does not support
> + * DT-based regulator lookup yet.
> + */
> + regulator-name = "vdd_arm";
> regulator-min-microvolt = <900000>;
> regulator-max-microvolt = <1350000>;
> regulator-always-on;
Ping.
This patch fixes broken cpufreq on above two boards, so it would be nice to
have it merged for 3.12, even if it's a bit hacky, since it's too late for
proper solution at the moment. (It's already in development, though.)
Best regards,
Tomasz
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