Hi, On Mon, Jun 13, 2016 at 4:04 PM, Douglas Anderson <dianders@xxxxxxxxxxxx> wrote: > Some SD/eMMC PHYs (like the PHY from Arasan that is designed to work > with arasan,sdhci-5.1) need to know the card clock in order to function > properly. Let's add the ability to expose this clock. Any PHY that > needs to know the clock rate can add a reference and query the clock > rate. > > At the moment we register a CLK_GET_RATE_NOCACHE clock that simply > allows querying the clock. This allows us to be less intrusive with > regards to the main SDHCI driver, which has complex logic for adjusting > the SD clock. Right now we always fully power cycle the PHY when the > clock changes and that gives the PHY a good chance to query our clock. > > Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx> > --- > Changes in v2: None > > drivers/mmc/host/sdhci-of-arasan.c | 125 ++++++++++++++++++++++++++++++++++++- > 1 file changed, 122 insertions(+), 3 deletions(-) I've sent out a new version of just this patch as "version 2.1" to address a problem found by Guenter Roeck. Please see <https://patchwork.kernel.org/patch/9178951/>. If it's handy for me to send out a whole new v3 series, please let me know. -Doug -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
