[U-Boot] [PATCH 1/2 V3] EXYNOS5: Add function to setup set ps hold

[Minkyu Kang <mk7.kang@samsung.com>]

Dear Simon Glass,

On 14/02/13 15:53, Simon Glass wrote:
> Hi,
> 
> On Tue, Feb 12, 2013 at 10:40 PM, Rajeshwari Shinde
> <rajeshwari.s@samsung.com> wrote:
>> This patch adds a function to set ps_hold data driving value high.
>> This enables the machine to stay powered on even after the initial
>> power-on condition goes away(e.g. power button).
>>
>> Acked-by: Simon Glass <sjg@chromium.org>
> 
> Probably should take this out when you rev the version, unless you are
> just fixing nits from that person.
> 
>> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
>> ---
>> Changes in V2:
>>         - Corrected the multi line comment style
>> Changes in V3:
>>         - Renamed ps hold funstion to set_ps_hold_ctrl and made
>>         exynos5_set_ps_hold_ctrl specific for exynos5.
>>  arch/arm/cpu/armv7/exynos/power.c        |   16 ++++++++++++++++
>>  arch/arm/include/asm/arch-exynos/power.h |    9 +++++++++
>>  2 files changed, 25 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c
>> index d4bce6d..e09a678 100644
>> --- a/arch/arm/cpu/armv7/exynos/power.c
>> +++ b/arch/arm/cpu/armv7/exynos/power.c
>> @@ -95,3 +95,19 @@ void set_dp_phy_ctrl(unsigned int enable)
>>         if (cpu_is_exynos5())
>>                 exynos5_dp_phy_control(enable);
>>  }
>> +
>> +static void exynos5_set_ps_hold_ctrl(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);
>> +}
>> +
>> +void set_ps_hold_ctrl(void)
> 
> Sorry to be a pain, but this has lost the power_ prefix. How about
> power_set_ps_hold_ctrl() then?

I requested it as the exynos naming rule.

> 
>> +{
>> +       if (cpu_is_exynos5())
>> +               exynos5_set_ps_hold_ctrl();
>> +}
>> diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h
>> index d2fdb59..f2f73fa 100644
>> --- a/arch/arm/include/asm/arch-exynos/power.h
>> +++ b/arch/arm/include/asm/arch-exynos/power.h
>> @@ -864,4 +864,13 @@ 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 set_ps_hold_ctrl(void);
>>  #endif
>> --
>> 1.7.4.4
>>
> 
> Regards,
> Simon
> 

Thanks.
Minkyu Kang.