[RFC 0/2] mmc: sdhci-pci: Use ACPI to set max frequency of sdio host

2016-11-08 Thread Zach Brown
On some boards, max SDIO frequency is limited by trace lengths and other layout choices. We would like a way to specify this limitation so the driver can behave accordingly. This patch set assumes that the limitation has been reported in an ACPI table which the driver can check to get the max

[RFC 0/2] mmc: sdhci-pci: Use ACPI to set max frequency of sdio host

2016-11-08 Thread Zach Brown
On some boards, max SDIO frequency is limited by trace lengths and other layout choices. We would like a way to specify this limitation so the driver can behave accordingly. This patch set assumes that the limitation has been reported in an ACPI table which the driver can check to get the max