Re: [PATCH AUTOSEL 6.0 39/44] mmc: sdhci-msm: add compatible string check for sdm670

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> On Mon, Oct 10, 2022 at 07:43:53PM -0400, Richard Acayan wrote:
>>> From: Richard Acayan <mailingradian@xxxxxxxxx>
>>>
>>> [ Upstream commit 4de95950d970c71a9e82a24573bb7a44fd95baa1 ]
>>>
>>> The Snapdragon 670 has the same quirk as Snapdragon 845 (needing to
>>> restore the dll config). Add a compatible string check to detect the need
>>> for this.
>>>
>>> Signed-off-by: Richard Acayan <mailingradian@xxxxxxxxx>
>>> Reviewed-by: Bhupesh Sharma <bhupesh.sharma@xxxxxxxxxx>
>>> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
>>> Link: https://lore.kernel.org/r/20220923014322.33620-3-mailingradian@xxxxxxxxx
>>> Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
>>> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
>>> ---
>>>  drivers/mmc/host/sdhci-msm.c | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
>>> index dc2991422a87..3a091a387ecb 100644
>>> --- a/drivers/mmc/host/sdhci-msm.c
>>> +++ b/drivers/mmc/host/sdhci-msm.c
>>> @@ -2441,6 +2441,7 @@ static const struct of_device_id sdhci_msm_dt_match[] = {
>>>  	 */
>>>  	{.compatible = "qcom,sdhci-msm-v4", .data = &sdhci_msm_mci_var},
>>>  	{.compatible = "qcom,sdhci-msm-v5", .data = &sdhci_msm_v5_var},
>>> +	{.compatible = "qcom,sdm670-sdhci", .data = &sdm845_sdhci_var},
>>
>>Supporting device trees which are invalid under 6.0 schema? It's not a bug fix,
>>it's a feature.
> 
> Does this not enable hardware to work properly? We take quirks/device
> enablement into stable tree as well.

It does, given that there are no device tree dependency issues. Thanks for the
clarification.



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