Hi Adrian, I know you have sofar mostly resisted adding device specific (DMI based) quirks to the sdhci-acpi.c driver and I agree with you that whenever possible, those should be avoided. But yesterday I was debugging an issue where using the microSD slot causes the LCD panel of a tablet to go black. This turns out to be a bug in the DSDT which gets triggered when using 1.8V modes, see the first patch for details. In this case I really so no other option then disabling 1.8V modes and only doing so only on the affected device model. Another issue which I had on my TODO list of things to fix is the Acer SW5-012 version of the Acer Switch 10 models always reporting the microSD as being write-protected. Here too I see no other option then a model specific quirk, since some BYT devices may use a normal SD slot with actual write-protect capabilities and we do not want to disable write-protect checking everywhere just because it is broken on one model. The workaround for this is the second patch in this series. Regards, Hans
