From: Stephan Gerhold <stephan@gerhold.net>
To: Sasha Levin <sashal@kernel.org>
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: Wed, 10 Nov 2021 09:40:16 +0100 [thread overview]
Message-ID: <YYuFcOrEXL0b8UEo@gerhold.net> (raw)
In-Reply-To: <20211109221641.1233217-73-sashal@kernel.org>
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?
Thanks,
Stephan
next prev parent reply other threads:[~2021-11-10 8:40 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 [this message]
2021-11-12 13:43 ` Sasha Levin
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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