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Message-ID: <20090817114651.GD5007@everest>
Date: Mon, 17 Aug 2009 14:46:51 +0300
From: Amit Kucheria <amit.kucheria@...durent.com>
To: Samuel Ortiz <sameo@...ux.intel.com>
Cc: dbrownell@...rs.sourceforge.net, linux-kernel@...r.kernel.org,
linux-omap@...r.kernel.org
Subject: Re: [PATCH 3/3] MFD: TWL4030: OMAP: Board-specifc DPS scripts for
RX51 board
On 09 Aug 04, Samuel Ortiz wrote:
> Hi Amit,
>
> On Wed, Jul 08, 2009 at 01:49:39PM +0300, Amit Kucheria wrote:
> > Add support for Dynamic Power Switching (DPS) for the RX51 board.
> Could I have an Acked-by from Tony or someone from Nokia maintaining this
> board (e.g. Lauri) ?
>
I'll cc Tony in the refreshed patches. Please note that this is not the
final version of the script. As the scripts are optimised, I'll send in
fixes.
Regards,
Amit
> > Signed-off-by: Amit Kucheria <amit.kucheria@...durent.com>
> > ---
> > arch/arm/mach-omap2/board-rx51-peripherals.c | 122 +++++++++++++++++++++++++-
> > 1 files changed, 120 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
> > index 9a0bf67..f7ebec8 100644
> > --- a/arch/arm/mach-omap2/board-rx51-peripherals.c
> > +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
> > @@ -1,5 +1,5 @@
> > /*
> > - * linux/arch/arm/mach-omap2/board-rx51-flash.c
> > + * linux/arch/arm/mach-omap2/board-rx51-peripherals.c
> > *
> > * Copyright (C) 2008-2009 Nokia
> > *
> > @@ -278,7 +278,124 @@ static struct twl4030_gpio_platform_data rx51_gpio_data = {
> > .setup = rx51_twlgpio_setup,
> > };
> >
> > -static struct twl4030_platform_data rx51_twldata = {
> > +static struct twl4030_ins sleep_on_seq[] __initdata = {
> > +/*
> > + * Turn off VDD1 and VDD2.
> > + */
> > + {MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_OFF), 4},
> > + {MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_OFF), 2},
> > +/*
> > + * And also turn off the OMAP3 PLLs and the sysclk output.
> > + */
> > + {MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_OFF), 3},
> > + {MSG_SINGULAR(DEV_GRP_P1, 0x17, RES_STATE_OFF), 3},
> > +};
> > +
> > +static struct twl4030_script sleep_on_script __initdata = {
> > + .script = sleep_on_seq,
> > + .size = ARRAY_SIZE(sleep_on_seq),
> > + .flags = TRITON_SLEEP_SCRIPT,
> > +};
> > +
> > +static struct twl4030_ins wakeup_seq[] __initdata = {
> > +/*
> > + * Reenable the OMAP3 PLLs.
> > + * Wakeup VDD1 and VDD2.
> > + * Reenable sysclk output.
> > + */
> > + {MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_ACTIVE), 0x30},
> > + {MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_ACTIVE), 0x30},
> > + {MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_ACTIVE), 0x37},
> > + {MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 3},
> > +};
> > +
> > +static struct twl4030_script wakeup_script __initdata = {
> > + .script = wakeup_seq,
> > + .size = ARRAY_SIZE(wakeup_seq),
> > + .flags = TRITON_WAKEUP12_SCRIPT,
> > +};
> > +
> > +static struct twl4030_ins wakeup_p3_seq[] __initdata = {
> > +/*
> > + * Wakeup VDD1 (dummy to be able to insert a delay)
> > + * Enable CLKEN
> > + */
> > + {MSG_SINGULAR(DEV_GRP_P1, 0x17, RES_STATE_ACTIVE), 3},
> > +};
> > +
> > +static struct twl4030_script wakeup_p3_script __initdata = {
> > + .script = wakeup_p3_seq,
> > + .size = ARRAY_SIZE(wakeup_p3_seq),
> > + .flags = TRITON_WAKEUP3_SCRIPT,
> > +};
> > +
> > +static struct twl4030_ins wrst_seq[] __initdata = {
> > +/*
> > + * Reset twl4030.
> > + * Reset VDD1 regulator.
> > + * Reset VDD2 regulator.
> > + * Reset VPLL1 regulator.
> > + * Enable sysclk output.
> > + * Reenable twl4030.
> > + */
> > + {MSG_SINGULAR(DEV_GRP_NULL, RES_RESET, RES_STATE_OFF), 2},
> > + {MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_ALL, 0, 1, RES_STATE_ACTIVE),
> > + 0x13},
> > + {MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_PP, 0, 2, RES_STATE_WRST), 0x13},
> > + {MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_PP, 0, 3, RES_STATE_OFF), 0x13},
> > + {MSG_SINGULAR(DEV_GRP_NULL, RES_VDD1, RES_STATE_WRST), 0x13},
> > + {MSG_SINGULAR(DEV_GRP_NULL, RES_VDD2, RES_STATE_WRST), 0x13},
> > + {MSG_SINGULAR(DEV_GRP_NULL, RES_VPLL1, RES_STATE_WRST), 0x35},
> > + {MSG_SINGULAR(DEV_GRP_P1, RES_HFCLKOUT, RES_STATE_ACTIVE), 2},
> > + {MSG_SINGULAR(DEV_GRP_NULL, RES_RESET, RES_STATE_ACTIVE), 2},
> > +};
> > +
> > +static struct twl4030_script wrst_script __initdata = {
> > + .script = wrst_seq,
> > + .size = ARRAY_SIZE(wrst_seq),
> > + .flags = TRITON_WRST_SCRIPT,
> > +};
> > +
> > +static struct twl4030_script *twl4030_scripts[] __initdata = {
> > + /* wakeup12 script should be loaded before sleep script, otherwise a
> > + board might hit retention before loading of wakeup script is
> > + completed. This can cause boot failures depending on timing issues.
> > + */
> > + &wakeup_script,
> > + &sleep_on_script,
> > + &wakeup_p3_script,
> > + &wrst_script,
> > +};
> > +
> > +static struct twl4030_resconfig twl4030_rconfig[] __initdata = {
> > + { .resource = RES_VINTANA1, .devgroup = -1, .type = -1, .type2 = 1 },
> > + { .resource = RES_VINTANA2, .devgroup = -1, .type = -1, .type2 = 1 },
> > + { .resource = RES_VINTDIG, .devgroup = -1, .type = -1, .type2 = 1 },
> > + { .resource = RES_VMMC1, .devgroup = -1, .type = -1, .type2 = 3},
> > + { .resource = RES_VMMC2, .devgroup = DEV_GRP_NULL, .type = -1,
> > + .type2 = 3},
> > + { .resource = RES_VAUX1, .devgroup = -1, .type = -1, .type2 = 3},
> > + { .resource = RES_VAUX2, .devgroup = -1, .type = -1, .type2 = 3},
> > + { .resource = RES_VAUX3, .devgroup = -1, .type = -1, .type2 = 3},
> > + { .resource = RES_VAUX4, .devgroup = -1, .type = -1, .type2 = 3},
> > + { .resource = RES_VPLL2, .devgroup = -1, .type = -1, .type2 = 3},
> > + { .resource = RES_VDAC, .devgroup = -1, .type = -1, .type2 = 3},
> > + { .resource = RES_VSIM, .devgroup = DEV_GRP_NULL, .type = -1,
> > + .type2 = 3},
> > + { .resource = RES_CLKEN, .devgroup = DEV_GRP_P3, .type = -1,
> > + .type2 = 1 },
> > + { 0, 0},
> > +};
> > +
> > +static struct twl4030_power_data rx51_t2scripts_data __initdata = {
> > + .scripts = twl4030_scripts,
> > + .size = ARRAY_SIZE(twl4030_scripts),
> > + .resource_config = twl4030_rconfig,
> > +};
> > +
> > +
> > +
> > +static struct twl4030_platform_data rx51_twldata __initdata = {
> > .irq_base = TWL4030_IRQ_BASE,
> > .irq_end = TWL4030_IRQ_END,
> >
> > @@ -286,6 +403,7 @@ static struct twl4030_platform_data rx51_twldata = {
> > .gpio = &rx51_gpio_data,
> > .keypad = &rx51_kp_data,
> > .madc = &rx51_madc_data,
> > + .power = &rx51_t2scripts_data,
> >
> > .vaux1 = &rx51_vaux1,
> > .vaux2 = &rx51_vaux2,
> > --
> > 1.6.3.3
> >
>
> --
> Intel Open Source Technology Centre
> http://oss.intel.com/
--
-------------------------------------------------------------------------
Amit Kucheria, Kernel Developer, Verdurent
-------------------------------------------------------------------------
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