Hi Tony, On Wednesday 24 June 2015 04:11 PM, Tony Lindgren wrote:
* Kishon Vijay Abraham I <[email protected]> [150623 05:02]:--- a/arch/arm/boot/dts/omap4.dtsi +++ b/arch/arm/boot/dts/omap4.dtsi @@ -852,12 +852,6 @@ }; };- omap_control_usbotg: control-phy@4a00233c { - compatible = "ti,control-phy-otghs"; - reg = <0x4a00233c 0x4>; - reg-names = "otghs_control"; - }; - usb_otg_hs: usb_otg_hs@4a0ab000 { compatible = "ti,omap4-musb"; reg = <0x4a0ab000 0x7ff>; @@ -870,7 +864,7 @@ multipoint = <1>; num-eps = <16>; ram-bits = <12>; - ctrl-module = <&omap_control_usbotg>; + syscon-otghs = <&scm_conf 0x33c>; }; aes: aes@4b501000 {We should still keep a separate entry for the phy in the dtsi files. And the phy should be a child of the scm_conf area in the dtsi file. This is because the scm and usb_otg_hs are separate devices and can be clocked separately. So the phy driver needs to be a separate driver to avoid spaghetti code and issues with clocking.
AFAIK SCM is clocked by L4CFG_L4_GICLK which is either free running or is managed automatically by the HW i.e gated when there is no access to the CTRL_MODULE_CORE registers.
Having a separate control-PHY driver only to do a regmap update to SCM is unnecessary IMHO.
Thanks Kishon -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
