Hi Tony, On Tuesday 06 June 2017 09:47 AM, Kishon Vijay Abraham I wrote: > Hi, > > On Friday 02 June 2017 04:20 PM, Ulf Hansson wrote: >> On 1 June 2017 at 16:33, Kishon Vijay Abraham I <kishon@xxxxxx> wrote: >>> There are the set of fixes that were sent initially as part >>> of [1]. >>> >>> These are mostly fixes w.r.t populating regulators in >>> mmc dt node. It was working before because the regulators >>> connecting to the IO lines are always on regulators. This will >>> break once we add UHS support where voltage has to be changed >>> dynamically. >>> >>> Performed enumeration testing on dra72-evm-revc, dra72-evm, >>> dra7-evm, am572x-evm, am571x-idk and am572x-idk. >>> >>> This is a preparation series for adding UHS mode support in >>> the above mentioned platforms. >>> >>> [1] -> https://lkml.org/lkml/2017/5/19/196 >>> >>> Kishon Vijay Abraham I (5): >>> ARM: dts: dra72-evm-common: Correct vmmc-supply for mmc2 >>> ARM: dts: dra72-evm: Add vmmc_aux supply to mmc1 >>> ARM: dts: dra72-evm-revc: Add vmmc_aux supply to mmc1 >>> ARM: dts: am57xx-beagle-x15-revb1: Fix supply name used for MMC1 IO >>> lines >>> ARM: dts: dra7: Add "max-frequency" property to MMC dt nodes >>> >>> Ravikumar Kattekola (1): >>> ARM: dts: dra7-evm: Correct the vmmc-supply for mmc2 >>> >>> Sekhar Nori (1): >>> ARM: OMAP2+: Add pdata-quirks for MMC/SD on DRA74x EVM >>> >>> arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts | 2 +- >>> arch/arm/boot/dts/dra7-evm.dts | 10 ++++++++- >>> arch/arm/boot/dts/dra7.dtsi | 5 +++++ >>> arch/arm/boot/dts/dra71-evm.dts | 14 ++++++++++++ >>> arch/arm/boot/dts/dra72-evm-common.dtsi | 2 -- >>> arch/arm/boot/dts/dra72-evm-revc.dts | 18 ++++++++++++++++ >>> arch/arm/boot/dts/dra72-evm.dts | 18 ++++++++++++++++ >>> arch/arm/mach-omap2/pdata-quirks.c | 31 +++++++++++++++++++++++++++ >>> include/linux/platform_data/hsmmc-omap.h | 3 +++ >>> 9 files changed, 99 insertions(+), 4 deletions(-) >> >> This series add a bunch of new vmmc_aux regulators for the mmc >> controller nodes. I would rather see that omap_hsmmc also converts to >> use the generic mmc binding for this regulator, which is "vqmmc". >> >> To accomplish that, omap_hsmmc needs to convert to use >> mmc_regulator_get_supply(). If the "vqmmc" regulator isn't found, it >> should fallback to try the "vmmc_aux". >> >> Can you do that? > > sure, I'll prepare that change. omap3-overo-base.dtsi has the following dt node for mmc. /* optional on board WiFi */ &mmc2 { pinctrl-names = "default"; pinctrl-0 = <&mmc2_pins>; vmmc-supply = <&w3cbw003c_npoweron>; vqmmc-supply = <&w3cbw003c_bt_nreset>; vmmc_aux-supply = <&w3cbw003c_wifi_nreset>; bus-width = <4>; cap-sdio-irq; non-removable; }; It has both "vqmmc-supply" and "vmmc_aux-supply". However omap-hsmmc driver has never parsed vqmmc so far. So I'd assume bt was never functional and it's used only for wifi. So for the change suggested by Ulf, Can I do something like below, so that we can keep wifi functional (ignoring bt since that was never functional)? - vqmmc-supply = <&w3cbw003c_bt_nreset>; - vmmc_aux-supply = <&w3cbw003c_wifi_nreset>; + vqmmc-supply = <&w3cbw003c_wifi_nreset>; Thanks Kishon -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
