From: Thierry Reding <thierry.reding@gmail.com>
To: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Cc: bhelgaas@google.com, lorenzo.pieralisi@arm.com, cyndis@kapsi.fi,
jonathanh@nvidia.com, linux-pci@vger.kernel.org,
linux-tegra@vger.kernel.org, vidyas@nvidia.com,
kthota@nvidia.com
Subject: Re: [PATCH V7 3/4] PCI: tegra: Broadcast PME_Turn_Off message before link goes to L2
Date: Tue, 13 Feb 2018 12:30:47 +0100 [thread overview]
Message-ID: <20180213113047.GC6764@ulmo> (raw)
In-Reply-To: <1517289851-14111-4-git-send-email-mmaddireddy@nvidia.com>
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On Tue, Jan 30, 2018 at 10:54:10AM +0530, Manikanta Maddireddy wrote:
> Per PCIe r3.0, sec 5.3.3.2.1, PCIe root port shoould broadcast PME_Turn_Off
> message before PCIe link goes to L2. PME_Turn_Off broadcast mechanism is
> implemented in AFI module. Each Tegra PCIe root port has its own
> PME_Turn_Off and PME_TO_Ack bitmap in AFI_PME register, program this
> register to broadcast PME_Turn_Off message.
>
> Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
> ---
> V2:
> * no change in this patch
> V3:
> * add PME bitmap in soc data instead of using compatible string
> * replace while loop with readl_poll_timeout() for polling
> * commit log correction
> V4:
> * no change in this patch
> V5:
> * Rebased on linux-next
> V6:
> * no change in this patch
> V7:
> * Per port soc data is added for pme bits
> * list_for_each_entry_safe is changed to list_for_each_entry for pme turnoff
>
> drivers/pci/host/pci-tegra.c | 64 ++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 64 insertions(+)
Acked-by: Thierry Reding <treding@nvidia.com>
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next prev parent reply other threads:[~2018-02-13 11:30 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-30 5:24 [PATCH V7 0/4] Add loadable kernel module and power management support Manikanta Maddireddy
2018-01-30 5:24 ` [PATCH V7 1/4] PCI: tegra: Free resources on probe failure Manikanta Maddireddy
2018-01-30 5:24 ` [PATCH V7 2/4] PCI: tegra: Add loadable kernel module support Manikanta Maddireddy
2018-02-13 11:39 ` Thierry Reding
2018-02-13 13:07 ` Thierry Reding
2018-02-13 13:18 ` Manikanta Maddireddy
2018-02-13 13:51 ` Thierry Reding
2018-02-13 15:26 ` Manikanta Maddireddy
2018-02-13 15:30 ` Manikanta Maddireddy
2018-01-30 5:24 ` [PATCH V7 3/4] PCI: tegra: Broadcast PME_Turn_Off message before link goes to L2 Manikanta Maddireddy
2018-02-13 11:30 ` Thierry Reding [this message]
2018-01-30 5:24 ` [PATCH V7 4/4] PCI: tegra: Add power management support Manikanta Maddireddy
2018-02-13 13:07 ` Thierry Reding
2018-02-13 13:08 ` [PATCH V7 0/4] Add loadable kernel module and " Thierry Reding
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