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kernel-adaptation-n900
> linux-2.6-omap-rx51-Set-regulator-V28_A-always-on.patch
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File linux-2.6-omap-rx51-Set-regulator-V28_A-always-on.patch of Package kernel-adaptation-n900
From cae12d3ebf22039cc7216f317bebac2f797d2a31 Mon Sep 17 00:00:00 2001 From: ext Jarkko Nikula <jhnikula@gmail.com> Date: Thu, 12 May 2011 14:30:57 +0300 Subject: [PATCH] omap: rx51: Set regulator V28_A always on The V28_A domain in Nokia N900 that supplies VDD voltages to TLV320AIC34 and TPA6130A2 should not be shutdown. This is because otherwise there will be leak from VIO to VDD in TLV320AIC34 and this leak consumes more battery current that is saved from keeping V28_A off. With this patch the battery current consumption is approximately 1.5 mA lower. Thanks to Kalle Jokiniemi <kalle.jokiniemi@nokia.com> for noticing the issue. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Cc: Kalle Jokiniemi <kalle.jokiniemi@nokia.com> --- arch/arm/mach-omap2/board-rx51-peripherals.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index 482fc3a..e9f2cd2 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -683,6 +683,7 @@ static struct regulator_init_data rx51_vmmc2 = { .name = "V28_A", .min_uV = 2800000, .max_uV = 3000000, + .always_on = true, /* due VIO leak to AIC34 VDDs */ .apply_uV = true, .valid_modes_mask = REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY, -- 1.7.0.4