From: kgene.kim@samsung.com (Kukjin Kim) Date: Wed, 16 Jul 2014 02:35:56 +0900 Subject: [PATCH v3 1/2] ARM: dts: Add mask-tpm-reset to the device tree In-Reply-To: References: <1405420294-9323-1-git-send-email-vikas.sajjan@samsung.com> <1405420294-9323-2-git-send-email-vikas.sajjan@samsung.com> Message-ID: <53C5667C.9070207@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 07/16/14 01:19, Doug Anderson wrote: > Vikas, > > On Tue, Jul 15, 2014 at 3:31 AM, Vikas Sajjan wrote: >> From: Doug Anderson >> >> 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 >> Signed-off-by: Vikas Sajjan >> --- >> arch/arm/boot/dts/exynos5420-peach-pit.dts | 12 ++++++++++++ >> 1 file changed, 12 insertions(+) > > Looks good to me. I'll assume Kukjin will add the words > "exynos5420-peach-pit" into the patch description when applying. > Yes :) > Reviewed-by: Doug Anderson > I've applied this series, thanks. - Kukjin