From: Sasha Levin <sashal@kernel.org>
To: Stephan Gerhold <stephan@gerhold.net>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Bjorn Andersson <bjorn.andersson@linaro.org>,
robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
catalin.marinas@arm.com, will.deacon@arm.com,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH AUTOSEL 5.15 73/82] arm64: dts: qcom: msm8916: Add CPU ACC and SAW/SPM
Date: Fri, 12 Nov 2021 08:43:21 -0500 [thread overview]
Message-ID: <YY5veYUpixJn9Q92@sashalap> (raw)
In-Reply-To: <YYuFcOrEXL0b8UEo@gerhold.net>
On Wed, Nov 10, 2021 at 09:40:16AM +0100, Stephan Gerhold wrote:
>Hi Sasha,
>
>On Tue, Nov 09, 2021 at 05:16:31PM -0500, Sasha Levin wrote:
>> From: Stephan Gerhold <stephan@gerhold.net>
>>
>> [ Upstream commit a22f9a766e1dc61f8f6ee2edfe83d4d23d78e059 ]
>>
>> Add the device tree nodes necessary for SMP bring-up and cpuidle
>> without PSCI on ARM32. The hardware is typically controlled by the
>> PSCI implementation in the TrustZone firmware and is therefore marked
>> as status = "reserved" by default (from the device tree specification):
>>
>> "Indicates that the device is operational, but should not be used.
>> Typically this is used for devices that are controlled by another
>> software component, such as platform firmware."
>>
>> Since this is part of the MSM8916 SoC it should be added to msm8916.dtsi
>> but in practice these nodes should only get enabled via an extra include
>> on ARM32.
>>
>> This is necessary for some devices with signed firmware which is missing
>> both ARM64 and PSCI support and can therefore only boot ARM32 kernels.
>>
>> Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
>> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
>> Link: https://lore.kernel.org/r/20211004204955.21077-13-stephan@gerhold.net
>> Signed-off-by: Sasha Levin <sashal@kernel.org>
>>
>
>This patch is not useful without other changes that landed in 5.16
>(in particular, the new device actually making use of these nodes).
>
>Can you drop this patch?
Yup, thanks!
--
Thanks,
Sasha
next prev parent reply other threads:[~2021-11-12 13:43 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-09 22:15 [PATCH AUTOSEL 5.15 01/82] arm64: zynqmp: Do not duplicate flash partition label property Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 02/82] arm64: zynqmp: Fix serial compatible string Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 04/82] ARM: dts: sunxi: Fix OPPs node name Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 05/82] arm64: dts: allwinner: h5: Fix GPU thermal zone " Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 06/82] arm64: dts: allwinner: a100: Fix " Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 08/82] ARM: dts: BCM5301X: Fix nodes names Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 09/82] ARM: dts: BCM5301X: Fix MDIO mux binding Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 10/82] ARM: dts: NSP: Fix mpcore, mmc node names Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 11/82] arm64: dts: broadcom: bcm4908: Move reboot syscon out of bus Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 15/82] arm64: dts: rockchip: Disable CDN DP on Pinebook Pro Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 16/82] arm64: dts: hisilicon: fix arm,sp805 compatible string Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 17/82] arm64: dts: rockchip: add Coresight debug range for RK3399 Sasha Levin
2021-11-09 23:25 ` Brian Norris
2021-11-10 0:44 ` Sasha Levin
2021-11-10 0:49 ` Brian Norris
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 23/82] ARM: dts: ux500: Skomer regulator fixes Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 27/82] ARM: BCM53016: Specify switch ports for Meraki MR32 Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 28/82] arm64: dts: qcom: msm8998: Fix CPU/L2 idle state latency and residency Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 29/82] arm64: dts: qcom: ipq6018: Fix qcom,controlled-remotely property Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 30/82] arm64: dts: qcom: ipq8074: " Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 31/82] arm64: dts: qcom: sdm845: " Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 32/82] arm64: dts: qcom: msm8916: Add unit name for /soc node Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 33/82] arm64: dts: freescale: fix arm,sp805 compatible string Sasha Levin
2021-11-09 22:15 ` [PATCH AUTOSEL 5.15 34/82] arm64: dts: ls1012a: Add serial alias for ls1012a-rdb Sasha Levin
2021-11-09 22:16 ` [PATCH AUTOSEL 5.15 45/82] arm64: dts: imx8mm-kontron: Fix reset delays for ethernet PHY Sasha Levin
2021-11-09 22:16 ` [PATCH AUTOSEL 5.15 53/82] ARM: dts: omap: fix gpmc,mux-add-data type Sasha Levin
2021-11-09 22:16 ` [PATCH AUTOSEL 5.15 56/82] ARM: dts: ls1021a: move thermal-zones node out of soc/ Sasha Levin
2021-11-09 22:16 ` [PATCH AUTOSEL 5.15 57/82] ARM: dts: ls1021a-tsn: use generic "jedec,spi-nor" compatible for flash Sasha Levin
2021-11-09 22:16 ` [PATCH AUTOSEL 5.15 72/82] powerpc/5200: dts: fix memory node unit name Sasha Levin
2021-11-09 22:16 ` [PATCH AUTOSEL 5.15 73/82] arm64: dts: qcom: msm8916: Add CPU ACC and SAW/SPM Sasha Levin
2021-11-10 8:40 ` Stephan Gerhold
2021-11-12 13:43 ` Sasha Levin [this message]
2021-11-09 22:16 ` [PATCH AUTOSEL 5.15 74/82] ARM: dts: qcom: fix memory and mdio nodes naming for RB3011 Sasha Levin
2021-11-09 22:16 ` [PATCH AUTOSEL 5.15 75/82] arm64: dts: qcom: Fix node name of rpm-msg-ram device nodes Sasha Levin
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