Messages in this thread | | | Date | Tue, 24 Nov 2015 10:23:41 +0100 | From | Ludovic Desroches <> | Subject | Re: [PATCH 1/2] mmc: sdhci: set bus voltage before enabling bus power |
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Hi Ulf,
On Mon, Nov 09, 2015 at 05:30:26PM +0100, Ludovic Desroches wrote: > On Mon, Nov 09, 2015 at 05:00:46PM +0100, Ulf Hansson wrote:
[...]
> > Now, this discussion was interesting, but I forgot what problem you > > actually where trying to solve? :-) > > There is this discussion because of two things: > - Fixing something I consider as a bug: when I have a VMMC, only > setting/clearing bit 0. Our controller strictly obeys to the spec and > check the 'SD Bus Voltage Select' field. Since we put a reserved value > (000), the Power On is not performed. > - I was trying to get help to understand what is this 'SD Bus Voltage'. > For our controller and sdhci_set_power(), it seems to stand for VMMC. > For me, everything concerning bus voltage is related to VQMMC, so I was > disappointed.
Do you plan to take the patch for VMMC? If yes, I will send a new patch for the device tree (I'll only add vmmc, not vqmmc as discussed); if not, forget these two patches.
Regards
Ludovic
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