* [PATCH] arm64: defconfig: Enable QCOM_SCM as builtin
@ 2020-11-18 16:25 Bjorn Andersson
2020-11-19 12:49 ` Vinod Koul
2020-11-30 16:30 ` Steev Klimaszewski
0 siblings, 2 replies; 3+ messages in thread
From: Bjorn Andersson @ 2020-11-18 16:25 UTC (permalink / raw)
To: Bjorn Andersson, Vinod Koul
Cc: Catalin Marinas, linux-kernel, John Stultz, linux-arm-msm,
Olof Johansson, Will Deacon, linux-arm-kernel
The Qualcomm SCM driver was never explicitly enabled in the defconfig.
Instead it was (apparently) selected by DRM_MSM and by the recent change
to make it tristate now became =m.
Unfortunately this removes the ability for PINCTRL_MSM and ARM_SMMU to
be =y and with deferred_probe_timeout defaulting to 0 this means that
things such as UART, USB, PCIe and SDHCI probes with their dependencies
ignored.
The lack of pinctrl results in invalid pin configuration and the lack of
iommu results in the system locking up as soon as any form of data
transfer is attempted from any of the affected peripherals.
Mark QCOM_SCM as builtin, to avoid this.
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
arch/arm64/configs/defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index d129340a7ed1..287ccf98dc41 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -99,6 +99,7 @@ CONFIG_ARM_SCPI_PROTOCOL=y
CONFIG_RASPBERRYPI_FIRMWARE=y
CONFIG_INTEL_STRATIX10_SERVICE=y
CONFIG_INTEL_STRATIX10_RSU=m
+CONFIG_QCOM_SCM=y
CONFIG_EFI_CAPSULE_LOADER=y
CONFIG_IMX_SCU=y
CONFIG_IMX_SCU_PD=y
--
2.28.0
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] arm64: defconfig: Enable QCOM_SCM as builtin
2020-11-18 16:25 [PATCH] arm64: defconfig: Enable QCOM_SCM as builtin Bjorn Andersson
@ 2020-11-19 12:49 ` Vinod Koul
2020-11-30 16:30 ` Steev Klimaszewski
1 sibling, 0 replies; 3+ messages in thread
From: Vinod Koul @ 2020-11-19 12:49 UTC (permalink / raw)
To: Bjorn Andersson
Cc: Catalin Marinas, linux-kernel, John Stultz, linux-arm-msm,
Olof Johansson, Will Deacon, linux-arm-kernel
On 18-11-20, 08:25, Bjorn Andersson wrote:
> The Qualcomm SCM driver was never explicitly enabled in the defconfig.
> Instead it was (apparently) selected by DRM_MSM and by the recent change
> to make it tristate now became =m.
>
> Unfortunately this removes the ability for PINCTRL_MSM and ARM_SMMU to
> be =y and with deferred_probe_timeout defaulting to 0 this means that
> things such as UART, USB, PCIe and SDHCI probes with their dependencies
> ignored.
>
> The lack of pinctrl results in invalid pin configuration and the lack of
> iommu results in the system locking up as soon as any form of data
> transfer is attempted from any of the affected peripherals.
>
> Mark QCOM_SCM as builtin, to avoid this.
Reviewed-by: Vinod Koul <vkoul@kernel.org>
--
~Vinod
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] arm64: defconfig: Enable QCOM_SCM as builtin
2020-11-18 16:25 [PATCH] arm64: defconfig: Enable QCOM_SCM as builtin Bjorn Andersson
2020-11-19 12:49 ` Vinod Koul
@ 2020-11-30 16:30 ` Steev Klimaszewski
1 sibling, 0 replies; 3+ messages in thread
From: Steev Klimaszewski @ 2020-11-30 16:30 UTC (permalink / raw)
To: Bjorn Andersson, Vinod Koul
Cc: Catalin Marinas, linux-kernel, John Stultz, linux-arm-msm,
Olof Johansson, Will Deacon, linux-arm-kernel
On 11/18/20 10:25 AM, Bjorn Andersson wrote:
> The Qualcomm SCM driver was never explicitly enabled in the defconfig.
> Instead it was (apparently) selected by DRM_MSM and by the recent change
> to make it tristate now became =m.
>
> Unfortunately this removes the ability for PINCTRL_MSM and ARM_SMMU to
> be =y and with deferred_probe_timeout defaulting to 0 this means that
> things such as UART, USB, PCIe and SDHCI probes with their dependencies
> ignored.
>
> The lack of pinctrl results in invalid pin configuration and the lack of
> iommu results in the system locking up as soon as any form of data
> transfer is attempted from any of the affected peripherals.
>
> Mark QCOM_SCM as builtin, to avoid this.
>
> Cc: John Stultz <john.stultz@linaro.org>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
> arch/arm64/configs/defconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index d129340a7ed1..287ccf98dc41 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -99,6 +99,7 @@ CONFIG_ARM_SCPI_PROTOCOL=y
> CONFIG_RASPBERRYPI_FIRMWARE=y
> CONFIG_INTEL_STRATIX10_SERVICE=y
> CONFIG_INTEL_STRATIX10_RSU=m
> +CONFIG_QCOM_SCM=y
> CONFIG_EFI_CAPSULE_LOADER=y
> CONFIG_IMX_SCU=y
> CONFIG_IMX_SCU_PD=y
Tested-by: Steev Klimaszewski <steev@kali.org>
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-11-18 16:25 [PATCH] arm64: defconfig: Enable QCOM_SCM as builtin Bjorn Andersson
2020-11-19 12:49 ` Vinod Koul
2020-11-30 16:30 ` Steev Klimaszewski
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