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Groups > linux.kernel > #1455768
| From | Heiko Stübner <heiko@sntech.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] arm64: dts: rockchip: Provide power-domains for sd/sdio/emmc controllers |
| Date | 2016-08-03 14:10 +0200 |
| Message-ID | <s239L-2mN-33@gated-at.bofh.it> (permalink) |
| References | <s1h57-3Xb-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hi Shawn, Am Montag, 1. August 2016, 16:41:14 schrieb Shawn Lin: > The PM domain will be "powered on" once we have registered our PM domain > with genpd and when the device (dw_mmc etc) gets attached to the domain. > The attach occurs when the platform bus'->probe() function get invoked > for the device. > > Due to this, we should be able to deploy genpd support by adding the > phandle of related power-domains without first having to deploying > runtime PM support in the related drivers. > > Let's do this in case of taking risk of accessing controller when the > genpd is in "power off" status as the genpd will turn off all the > power domains which are the referenced by drivers. > > Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> you're missing the subnodes below power: power-controller defining the power- domains, - including the needed clocks. Thus currently you end up defering probe of the emmc and friends indefinitly. Ideally do it in this patch together with the assignment. Thanks Heiko
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[PATCH] arm64: dts: rockchip: Provide power-domains for sd/sdio/emmc controllers Shawn Lin <shawn.lin@rock-chips.com> - 2016-08-01 10:50 +0200 Re: [PATCH] arm64: dts: rockchip: Provide power-domains for sd/sdio/emmc controllers Heiko Stübner <heiko@sntech.de> - 2016-08-03 14:10 +0200
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