Daniel Beer a1149a6c06 mmc: sdhci-pci-gli: increase 1.8V regulator wait ... Inserting an SD-card on an Intel NUC10i3FNK4 (which contains a GL9755) results in the message: mmc0: 1.8V regulator output did not become stable Following this message, some cards work (sometimes), but most cards fail with EILSEQ. This behaviour is observed on Debian 10 running kernel 4.19.188, but also with 5.8.18 and 5.11.15. The driver currently waits 5ms after switching on the 1.8V regulator for it to become stable. Increasing this to 10ms gets rid of the warning about stability, but most cards still fail. Increasing it to 20ms gets some cards working (a 32GB Samsung micro SD works, a 128GB ADATA doesn't). At 50ms, the ADATA works most of the time, and at 100ms both cards work reliably. Signed-off-by: Daniel Beer <dlbeer@gmail.com> Acked-by: Ben Chuang <benchuanggli@gmail.com> Fixes: e51df6ce66 ("mmc: host: sdhci-pci: Add Genesys Logic GL975x support") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210424081652.GA16047@nyquist.nev Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>		2021-05-10 14:39:06 +02:00
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core	mmc: block: Issue a cache flush only when it's enabled	2021-04-26 11:37:23 +02:00
host	mmc: sdhci-pci-gli: increase 1.8V regulator wait	2021-05-10 14:39:06 +02:00
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