Vikas, On Sun, Jul 13, 2014 at 11:33 PM, Vikas Sajjan <vikas.sajjan@xxxxxxxxxxx> wrote: > From: Doug Anderson <dianders@xxxxxxxxxxxx> > > The mask-tpm-reset GPIO is used by the kernel to prevent the TPM from > being reset across sleep/wake. If we don't set it to anything then > the TPM will be reset. U-Boot will detect this as invalid > and will reset the system on resume time. This GPIO can always be low > and not hurt anything. It will get pulled back high again during a > normal warm reset when it will default back to an input. > > To properly preserve the TPM state across suspend/resume and to make > the chrome U-Boot happy, properly set the GPIO to mask the > reset to the TPM. > > Signed-off-by: Doug Anderson <dianders@xxxxxxxxxxxx> > Signed-off-by: Vikas Sajjan <vikas.sajjan@xxxxxxxxxxx> > --- > changes since v1: > - removed fixed regulator and used hogs instead. > > arch/arm/boot/dts/exynos5420-peach-pit.dts | 12 ++++++++++++ > 1 file changed, 12 insertions(+) This looks reasonable to me except for two things: 1. You need to apply this to pit and pi (not just pi) 2. The proper sort ordering for elements within a pin control group is by pin number, so this pin should be _after_ gpx0-2, not before. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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