On Wednesday 07 of November 2012 14:01:19 Tomasz Figa wrote:
> This patch adds missing USB OTG regulators needed for s3c-hsotg driver
> to work on Origen board.
> 
> Signed-off-by: Tomasz Figa <[email protected]>
> Signed-off-by: Kyungmin Park <[email protected]>
> ---
>  arch/arm/mach-exynos/mach-origen.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/mach-exynos/mach-origen.c
> b/arch/arm/mach-exynos/mach-origen.c index d8dc6d7..ddf6358 100644
> --- a/arch/arm/mach-exynos/mach-origen.c
> +++ b/arch/arm/mach-exynos/mach-origen.c
> @@ -100,6 +100,8 @@ static struct regulator_consumer_supply __initdata
> ldo3_consumer[] = { REGULATOR_SUPPLY("vddcore", "s5p-mipi-csis.0"), /*
> MIPI */
>       REGULATOR_SUPPLY("vdd", "exynos4-hdmi"), /* HDMI */
>       REGULATOR_SUPPLY("vdd_pll", "exynos4-hdmi"), /* HDMI */
> +     REGULATOR_SUPPLY("vusb_d", "s3c-hsotg"), /* OTG */
> +     REGULATOR_SUPPLY("vusb_a", "s3c-hsotg"), /* OTG */
>  };
>  static struct regulator_consumer_supply __initdata ldo6_consumer[] = {
>       REGULATOR_SUPPLY("vddio", "s5p-mipi-csis.0"), /* MIPI */

It's worth noting that this patch is based on board file of Origen in 
Linaro tree

http://git.linaro.org/gitweb?p=landingteams/working/samsung/kernel;a=summary 
branch samsung-linux-3.6-2012.10

and not confirmed with respective board schematics (although verified 
working on an Origen board).

Personally I find these two consumers, which are supposed to provided with 
completely different voltages, connected to a single regulator a bit 
suspicious, so someone who know details of this board should ack or 
correct this patch.

Best regards,
-- 
Tomasz Figa
Samsung Poland R&D Center
SW Solution Development, Linux Platform

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