From: Rob Herring <robh@kernel.org>
To: "Pali Rohár" <pali@kernel.org>
Cc: "Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Andrew Lunn" <andrew@lunn.ch>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Marek Behún" <kabel@kernel.org>,
"Russell King" <rmk+kernel@armlinux.org.uk>,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/4] PCI: mvebu: Add support for sending Set_Slot_Power_Limit message
Date: Thu, 24 Mar 2022 15:50:28 -0500 [thread overview]
Message-ID: <YjzZlPyaCtcQvIph@robh.at.kernel.org> (raw)
In-Reply-To: <20220302145733.12606-5-pali@kernel.org>
On Wed, Mar 02, 2022 at 03:57:33PM +0100, Pali Rohár wrote:
> If DT supplies the 'slot-power-limit-milliwatt' property, program
> the value in the Slot Power Limit in the Slot Capabilities register
> and program the Root Port to send a Set_Slot_Power_Limit Message
> when the Link transitions to DL_Up.
>
> Signed-off-by: Pali Rohár <pali@kernel.org>
> ---
> Changes in v2:
> * Fix handling of slot power limit with scale x1.0 (0x00 value)
> * Use FIELD_PREP instead of _SHIFT macros
> * Changed commit message to Bjorn's suggestion
> * Changed comments in the code to match PCIe spec
> * Preserve user settings of PCI_EXP_SLTCTL_ASPL_DISABLE bit
> ---
> drivers/pci/controller/pci-mvebu.c | 96 ++++++++++++++++++++++++++++--
> 1 file changed, 91 insertions(+), 5 deletions(-)
Reviewed-by: Rob Herring <robh@kernel.org>
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next prev parent reply other threads:[~2022-03-24 20:51 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-02 14:57 [PATCH v2 0/4] PCI: mvebu: Slot support Pali Rohár
2022-03-02 14:57 ` [PATCH v2 1/4] PCI: Add PCI_EXP_SLTCTL_ASPL_DISABLE macro Pali Rohár
2022-03-02 14:57 ` [PATCH v2 2/4] dt-bindings: Add 'slot-power-limit-milliwatt' PCIe port property Pali Rohár
2022-03-24 20:47 ` Rob Herring
2022-03-02 14:57 ` [PATCH v2 3/4] PCI: Add function for parsing 'slot-power-limit-milliwatt' DT property Pali Rohár
2022-03-24 17:13 ` Bjorn Helgaas
2022-03-25 9:20 ` Pali Rohár
2022-03-02 14:57 ` [PATCH v2 4/4] PCI: mvebu: Add support for sending Set_Slot_Power_Limit message Pali Rohár
2022-03-24 17:15 ` Bjorn Helgaas
2022-03-24 20:50 ` Rob Herring [this message]
2022-03-08 11:38 ` [PATCH v2 0/4] PCI: mvebu: Slot support Pali Rohár
2022-03-21 18:29 ` Pali Rohár
2022-03-24 17:12 ` Bjorn Helgaas
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