Re: [RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-15 Thread Adrian Hunter
On 11/11/16 21:49, Julia Cartwright wrote: > On Wed, Nov 09, 2016 at 10:08:29AM -0600, Zach Brown wrote: >> On Wed, Nov 09, 2016 at 03:24:24PM +0200, Adrian Hunter wrote: >>> On 08/11/16 22:07, Zach Brown wrote: On NI 9037 boards the max SDIO frequency is limited by trace lengths and

Re: [RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-15 Thread Adrian Hunter
On 11/11/16 21:49, Julia Cartwright wrote: > On Wed, Nov 09, 2016 at 10:08:29AM -0600, Zach Brown wrote: >> On Wed, Nov 09, 2016 at 03:24:24PM +0200, Adrian Hunter wrote: >>> On 08/11/16 22:07, Zach Brown wrote: On NI 9037 boards the max SDIO frequency is limited by trace lengths and

Re: [RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-11 Thread Julia Cartwright
On Wed, Nov 09, 2016 at 10:08:29AM -0600, Zach Brown wrote: > On Wed, Nov 09, 2016 at 03:24:24PM +0200, Adrian Hunter wrote: > > On 08/11/16 22:07, Zach Brown wrote: > > > On NI 9037 boards the max SDIO frequency is limited by trace lengths > > > and other layout choices. The max SDIO frequency is

Re: [RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-11 Thread Julia Cartwright
On Wed, Nov 09, 2016 at 10:08:29AM -0600, Zach Brown wrote: > On Wed, Nov 09, 2016 at 03:24:24PM +0200, Adrian Hunter wrote: > > On 08/11/16 22:07, Zach Brown wrote: > > > On NI 9037 boards the max SDIO frequency is limited by trace lengths > > > and other layout choices. The max SDIO frequency is

Re: [RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-09 Thread Zach Brown
On Wed, Nov 09, 2016 at 03:24:24PM +0200, Adrian Hunter wrote: > On 08/11/16 22:07, Zach Brown wrote: > > On NI 9037 boards the max SDIO frequency is limited by trace lengths > > and other layout choices. The max SDIO frequency is stored in an ACPI > > table, as MXFQ. > > > > The driver reads the

Re: [RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-09 Thread Zach Brown
On Wed, Nov 09, 2016 at 03:24:24PM +0200, Adrian Hunter wrote: > On 08/11/16 22:07, Zach Brown wrote: > > On NI 9037 boards the max SDIO frequency is limited by trace lengths > > and other layout choices. The max SDIO frequency is stored in an ACPI > > table, as MXFQ. > > > > The driver reads the

Re: [RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-09 Thread Adrian Hunter
On 08/11/16 22:07, Zach Brown wrote: > On NI 9037 boards the max SDIO frequency is limited by trace lengths > and other layout choices. The max SDIO frequency is stored in an ACPI > table, as MXFQ. > > The driver reads the ACPI entry MXFQ during sdio_probe_slot and sets the > f_max field of the

Re: [RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-09 Thread Adrian Hunter
On 08/11/16 22:07, Zach Brown wrote: > On NI 9037 boards the max SDIO frequency is limited by trace lengths > and other layout choices. The max SDIO frequency is stored in an ACPI > table, as MXFQ. > > The driver reads the ACPI entry MXFQ during sdio_probe_slot and sets the > f_max field of the

[RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-08 Thread Zach Brown
On NI 9037 boards the max SDIO frequency is limited by trace lengths and other layout choices. The max SDIO frequency is stored in an ACPI table, as MXFQ. The driver reads the ACPI entry MXFQ during sdio_probe_slot and sets the f_max field of the host with it. Signed-off-by: Nathan Sullivan

[RFC 2/2] mmc: sdhci-pci: Use ACPI to get max frequency for Intel byt sdio host controller sub-vended by NI

2016-11-08 Thread Zach Brown
On NI 9037 boards the max SDIO frequency is limited by trace lengths and other layout choices. The max SDIO frequency is stored in an ACPI table, as MXFQ. The driver reads the ACPI entry MXFQ during sdio_probe_slot and sets the f_max field of the host with it. Signed-off-by: Nathan Sullivan