[U-Boot] TI:OMAP: [PATCH 3/7] API to set twl4030 voltage and dev group

[Tom <Tom.Rix@windriver.com>]

Khasim Syed Mohammed wrote:
> On Sun, Jan 24, 2010 at 5:37 AM, Tom <Tom.Rix@windriver.com> wrote:
>> Khasim Syed Mohammed wrote:
>>> From ca6c186c40fafaf0bf53f5f3e90057c0a34374f9 Mon Sep 17 00:00:00 2001
>>> From: Syed Mohammed Khasim <khasim@ti.com>
>>> Date: Mon, 18 Jan 2010 18:22:09 +0530
>>> Subject: [PATCH] API to set twl4030 voltage and dev group
>>>
>>> V3:
>>> Incorporated review comments to set voltage first
>>> and then dev group
>>>
>>> V2:
>>> Incorporated review comments to split the patch and
>>> add generic API to set the voltage and device group.
>>> http://www.mail-archive.com/u-boot at lists.denx.de/msg27136.html
>>>
>>> V1:
>>> Added support for 720 Mhz
>>> http://www.mail-archive.com/u-boot at lists.denx.de/msg27035.html
>>>
>>> Signed-off-by: Syed Mohammed Khasim <khasim@ti.com>
>>> ---
>>>  drivers/power/twl4030.c |   24 +++++++++++++++---------
>>>  include/twl4030.h       |   16 ++++++++++++++++
>>>  2 files changed, 31 insertions(+), 9 deletions(-)
>>>
>>> diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c
>>> index eb066cb..f25b58f 100644
>>> --- a/drivers/power/twl4030.c
>>> +++ b/drivers/power/twl4030.c
>>> @@ -59,16 +59,9 @@ void twl4030_power_reset_init(void)
>>>        }
>>>  }
>>>
>>> -
>>>  /*
>>>  * Power Init
>>>  */
>>> -#define DEV_GRP_P1             0x20
>>> -#define VAUX3_VSEL_28          0x03
>>> -#define DEV_GRP_ALL            0xE0
>>> -#define VPLL2_VSEL_18          0x05
>>> -#define VDAC_VSEL_18           0x03
>>> -
>>>  void twl4030_power_init(void)
>>>  {
>>>        unsigned char byte;
>>> @@ -98,8 +91,6 @@ void twl4030_power_init(void)
>>>                             TWL4030_PM_RECEIVER_VDAC_DEDICATED);
>>>  }
>>>
>>> -#define VMMC1_VSEL_30          0x02
>>> -
>>>  void twl4030_power_mmc_init(void)
>>>  {
>>>        unsigned char byte;
>>> @@ -113,3 +104,18 @@ void twl4030_power_mmc_init(void)
>>>        twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte,
>>>                             TWL4030_PM_RECEIVER_VMMC1_DEDICATED);
>>>  }
>>> +
>>> +/*
>>> + * Generic function to select Device Group and Voltage
>>> + */
>>> +void twl4030_pmrecv_vsel_cfg(u8 vsel_reg, u8 vsel_val,
>>> +                               u8 dev_grp, u8 dev_grp_sel)
>>> +{
>>> +       /* Select the Voltage */
>>> +       twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, vsel_val,
>>> +                               vsel_reg);
>>> +
>>> +       /* Select the Device Group */
>>> +       twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, dev_grp_sel,
>>> +                               dev_grp);
>>> +}
>>> diff --git a/include/twl4030.h b/include/twl4030.h
>>> index 2b2f5ae..9bdd3ea 100644
>>> --- a/include/twl4030.h
>>> +++ b/include/twl4030.h
>>> @@ -471,6 +471,22 @@
>>>  #define TWL4030_USB_PHY_CLK_CTRL_STS                   0xFF
>>>
>>>  /*
>>> + * Voltage Selection in PM Receiver Module
>>> + */
>>> +#define VAUX2_VSEL_18          0x05
>>> +#define VDD1_VSEL_14           0x40
>>> +#define VAUX3_VSEL_28          0x03
>>> +#define VPLL2_VSEL_18          0x05
>>> +#define VDAC_VSEL_18           0x03
>>> +#define VMMC1_VSEL_30          0x02
>>> +
>> Remain consistent with existing naming
>> Use the TWL4030_PM_RECEIVER prefix
>>
> Are you sure, you want to do this
> 
> VMMC1_VSEL_30
> 
> Changed to
> 
> TWL4030_PM_RECEIVER_VMMC1_VSEL_30
> 
> It looks very awkward to me, More over the prefix is used for register
> definition already. This is bit value - Kindly confirm

Yes
The goal is to be consistent.

Tom

> 
> Regards,
> Khasim