[PATCH 6/6] mci: sdhci: rockchip: officially support HS200

Sascha Hauer s.hauer at pengutronix.de
Thu May 7 01:36:53 PDT 2026


On 2026-05-07 10:15, Ahmad Fatoum wrote:
> Hi,
> 
> On 5/7/26 9:02 AM, Sascha Hauer wrote:
> > "officially" is meant in the way that even with the SDHCI_QUIRK2_BROKEN_HS200
> > flag set the driver already does HS200 when the device tree mandates it.
> 
> Shouldn't we change mci-core.c to evaluate MMC_CAP2_HS200 then?

It already does. The problem is that when the device tree has the
"mmc-hs200-1_8v" property than it's authorative. The SDHCI_QUIRK2_BROKEN_HS200
only prevents the MMC_CAP2_HS200 from being set based on other caps, but
it doesn't clear MMC_CAP2_HS200 when SDHCI_QUIRK2_BROKEN_HS200 is set.
The behaviour is the same as in Linux, so I hesitated from changing this.

Sascha

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