On Tue, Mar 15, 2011 at 8:14 PM, Andy Green <andy@xxxxxxxxxxx> wrote:
> On 03/15/2011 07:10 PM, Somebody in the thread at some point said:
>>
>> the pandaboard does not use the VUSIM or VAUX1 power regulators on the
>> TWL6030
>> and are left floating. if the VUSIM and VAUX1 power regulators are
>> initilized,
>> noise on the unloaded regulators generates an overcurrent interrupt
>> causing the
>> system to power down. this patch removes the initialization of the unused
>> power
>> regulators of VUSIM and VAUX1.
>>
>> Signed-off-by: David Anders<x0132446@xxxxxx>
>
> Acked-by: Andy Green <andy.green@xxxxxxxxxx>
>
> Great job finding this one David.
Great!
Acked-by: Jean Pihet <j-pihet@xxxxxx>
Thanks,
Jean
>
>> ---
>> arch/arm/mach-omap2/board-omap4panda.c | 28
>> ----------------------------
>> 1 files changed, 0 insertions(+), 28 deletions(-)
>>
>> diff --git a/arch/arm/mach-omap2/board-omap4panda.c
>> b/arch/arm/mach-omap2/board-omap4panda.c
>> index e944025..abc913b 100644
>> --- a/arch/arm/mach-omap2/board-omap4panda.c
>> +++ b/arch/arm/mach-omap2/board-omap4panda.c
>> @@ -220,19 +220,6 @@ static int __init omap4_twl6030_hsmmc_init(struct
>> omap2_hsmmc_info *controllers)
>> return 0;
>> }
>>
>> -static struct regulator_init_data omap4_panda_vaux1 = {
>> - .constraints = {
>> - .min_uV = 1000000,
>> - .max_uV = 3000000,
>> - .apply_uV = true,
>> - .valid_modes_mask = REGULATOR_MODE_NORMAL
>> - | REGULATOR_MODE_STANDBY,
>> - .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
>> - | REGULATOR_CHANGE_MODE
>> - | REGULATOR_CHANGE_STATUS,
>> - },
>> -};
>> -
>> static struct regulator_init_data omap4_panda_vaux2 = {
>> .constraints = {
>> .min_uV = 1200000,
>> @@ -288,19 +275,6 @@ static struct regulator_init_data omap4_panda_vpp = {
>> },
>> };
>>
>> -static struct regulator_init_data omap4_panda_vusim = {
>> - .constraints = {
>> - .min_uV = 1200000,
>> - .max_uV = 2900000,
>> - .apply_uV = true,
>> - .valid_modes_mask = REGULATOR_MODE_NORMAL
>> - | REGULATOR_MODE_STANDBY,
>> - .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
>> - | REGULATOR_CHANGE_MODE
>> - | REGULATOR_CHANGE_STATUS,
>> - },
>> -};
>> -
>> static struct regulator_init_data omap4_panda_vana = {
>> .constraints = {
>> .min_uV = 2100000,
>> @@ -356,12 +330,10 @@ static struct twl4030_platform_data
>> omap4_panda_twldata = {
>> /* Regulators */
>> .vmmc =&omap4_panda_vmmc,
>> .vpp =&omap4_panda_vpp,
>> - .vusim =&omap4_panda_vusim,
>> .vana =&omap4_panda_vana,
>> .vcxio =&omap4_panda_vcxio,
>> .vdac =&omap4_panda_vdac,
>> .vusb =&omap4_panda_vusb,
>> - .vaux1 =&omap4_panda_vaux1,
>> .vaux2 =&omap4_panda_vaux2,
>> .vaux3 =&omap4_panda_vaux3,
>> .usb =&omap4_usbphy_data,
>
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