On Tue, Jan 15, 2013 at 2:25 AM, Rajeshwari Shinde
<rajeshwar...@samsung.com> wrote:
> This patch adds a function to set ps_hold data driving value high.
> This enables the machine to stay powered on after the initial
> power-on condition goes away(e.g. power button).
>
> Signed-off-by: Rajeshwari Shinde <rajeshwar...@samsung.com>
Acked-by: Simon Glass <s...@chromium.org>
> ---
> arch/arm/cpu/armv7/exynos/power.c | 10 ++++++++++
> arch/arm/include/asm/arch-exynos/power.h | 8 ++++++++
> 2 files changed, 18 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/cpu/armv7/exynos/power.c
> b/arch/arm/cpu/armv7/exynos/power.c
> index d4bce6d..8572cfd 100644
> --- a/arch/arm/cpu/armv7/exynos/power.c
> +++ b/arch/arm/cpu/armv7/exynos/power.c
> @@ -95,3 +95,13 @@ void set_dp_phy_ctrl(unsigned int enable)
> if (cpu_is_exynos5())
> exynos5_dp_phy_control(enable);
> }
> +
> +void power_ps_hold_setup(void)
> +{
> + struct exynos5_power *power =
> + (struct exynos5_power *)samsung_get_base_power();
> +
> + /* Set PS-Hold high */
> + setbits_le32(&power->ps_hold_control,
> + EXYNOS_PS_HOLD_CONTROL_DATA_HIGH);
> +}
> diff --git a/arch/arm/include/asm/arch-exynos/power.h
> b/arch/arm/include/asm/arch-exynos/power.h
> index d2fdb59..85e2cd9 100644
> --- a/arch/arm/include/asm/arch-exynos/power.h
> +++ b/arch/arm/include/asm/arch-exynos/power.h
> @@ -864,4 +864,12 @@ void set_dp_phy_ctrl(unsigned int enable);
>
> #define EXYNOS_DP_PHY_ENABLE (1 << 0)
>
> +#define EXYNOS_PS_HOLD_CONTROL_DATA_HIGH (1 << 8)
> +
> +/*Set ps_hold data driving value high
> + * This enables the machine to stay powered on
> + * after the initial power-on condition goes away
> + * (e.g. power button).
> + */
> +void power_ps_hold_setup(void);
> #endif
> --
> 1.7.4.4
>
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