Re: [PATCH v3 1/3] arm: dts: rk3288-tinker.dtsi: Fix SD card detection

[Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>]

Hi Jonas,

Am Samstag, 9. März 2019, 16:39:21 CET schrieb David Summers:
> The Problem:
> 
> On ASUS Tinker Board S, when booting from the eMMC, and there is card
> in the sd slot, there are constant errors.
> 
> Also when warm reboot, uboot can not access the sd slot
> 
> Cause:
> 
> Identified by Robin Murphy @ ARM. The Card Detect on rk3288
> devices is pulled up by vccio-sd; so when the regulator powers this
> off, card detect gives spurious errors. A second problem, is during
> power down, vccio-sd apprears to be powered down. This causes a
> problem when warm rebooting from the sd card. This was identified by
> Jonas Karlman.
> 
> History:
> 
> A common fault on these rk3288 board, which impliment the reference
> design.
> 
> When this arose before:
> 
> http://lists.infradead.org/pipermail/linux-arm-kernel/2014-August/281153.html
> 
> And Ulf and Jaehoon clearly said this was a broken card detect design,
> which should be solved via polling
> 
> Solution:
> 
> Hence broken-cd is set as a property. This cures the errors. The
> powering down of vccio-sd during reboot is cured by adding
> regulator-boot-on.
> 
> This solutions has been fairly widely reviewed and tested.
> 
> Signed-off-by: David Summers <beagleboard-8lkWs+DogrrqRUWtDFdff/XRex20P6io@public.gmane.org>
> Reviewed by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
> Reviewed by: Jonas Karlman <jonas-uIzNG4q0ceqzQB+pC5nmwQ@public.gmane.org>

in v2, you gave a
Tested-by: Jonas Karlman <jonas-uIzNG4q0ceqzQB+pC5nmwQ@public.gmane.org>
it seems, which somehow transformed into a reviewed-by in v3.

V3 did change a bit in its approach - for the better, but do you approve
of adding that Reviewed-by above (and maybe also providing a Tested-by
for the new approach)?

Thanks
Heiko