On Tue, Nov 24, 2015 at 12:01:53PM +0100, Ulf Hansson wrote: > On 24 November 2015 at 10:23, Ludovic Desroches > <ludovic.desroches@xxxxxxxxx> wrote: > > 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. > > > > Which patch do you refer to for "VMMC"? > This one to not write an invalid voltage in the power control register even if we have an external regulator for vmmc. Regards Ludovic -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
