[U-Boot] [PATCH 4/5] efi_loader: gop: fixes for CONFIG_DM_VIDEO without CONFIG_LCD

[Tom Rini <trini@konsulko.com>]

On Fri, Jul 21, 2017 at 04:48:23AM -0600, Simon Glass wrote:
> Hi Rob,
> 
> On 19 July 2017 at 09:24, Rob Clark <robdclark@gmail.com> wrote:
> > On Tue, Jul 18, 2017 at 11:06 AM, Alexander Graf <agraf@suse.de> wrote:
> >> On 07/18/2017 04:54 PM, Simon Glass wrote:
> >>>
> >>> Hi Alex,
> >>>
> >>> On 18 July 2017 at 07:47, Alexander Graf <agraf@suse.de> wrote:
> >>>>
> >>>> On 07/18/2017 04:00 PM, Simon Glass wrote:
> >>>>>
> >>>>> Hi,
> >>>>>
> >>>>> On 12 July 2017 at 05:52, Alexander Graf <agraf@suse.de> wrote:
> >>>>>>
> >>>>>>
> >>>>>> On 25.06.17 01:05, Rob Clark wrote:
> >>>>>>>
> >>>>>>> Signed-off-by: Rob Clark <robdclark@gmail.com>
> >>>>>>> Cc: Alexander Graf <agraf@suse.de>
> >>>>>>
> >>>>>>
> >>>>>> Looks reasonable to me, but could probably use a commit message ;).
> >>>>>> Also
> >>>>>> please make sure to CC Simon on all things DM.
> >>>>>>
> >>>>> Can we drop the CONFIG_LCD support entirely? This is legacy code at
> >>>>> this point. What boards use it?
> >>>>
> >>>>
> >>>> Sounds like someone would first need to convert a bunch of boards :).
> >>>>
> >>>> $ for i in $(grep CONFIG_LCD configs/* | cut -d : -f 1); do grep -q
> >>>> DM_VIDEO
> >>>> $i || echo $i; done
> >>>> configs/at91sam9261ek_dataflash_cs0_defconfig
> >>>> configs/at91sam9261ek_dataflash_cs3_defconfig
> >>>> configs/at91sam9261ek_nandflash_defconfig
> >>>> configs/at91sam9263ek_dataflash_cs0_defconfig
> >>>> configs/at91sam9263ek_dataflash_defconfig
> >>>> configs/at91sam9263ek_nandflash_defconfig
> >>>> configs/at91sam9263ek_norflash_boot_defconfig
> >>>> configs/at91sam9263ek_norflash_defconfig
> >>>> configs/at91sam9g10ek_dataflash_cs0_defconfig
> >>>> configs/at91sam9g10ek_dataflash_cs3_defconfig
> >>>> configs/at91sam9g10ek_nandflash_defconfig
> >>>> configs/at91sam9m10g45ek_mmc_defconfig
> >>>> configs/at91sam9m10g45ek_nandflash_defconfig
> >>>> configs/at91sam9n12ek_mmc_defconfig
> >>>> configs/at91sam9n12ek_nandflash_defconfig
> >>>> configs/at91sam9n12ek_spiflash_defconfig
> >>>> configs/at91sam9rlek_dataflash_defconfig
> >>>> configs/at91sam9rlek_mmc_defconfig
> >>>> configs/at91sam9rlek_nandflash_defconfig
> >>>> configs/at91sam9x5ek_dataflash_defconfig
> >>>> configs/at91sam9x5ek_mmc_defconfig
> >>>> configs/at91sam9x5ek_nandflash_defconfig
> >>>> configs/at91sam9x5ek_spiflash_defconfig
> >>>> configs/brppt1_mmc_defconfig
> >>>> configs/brppt1_nand_defconfig
> >>>> configs/brppt1_spi_defconfig
> >>>> configs/brxre1_defconfig
> >>>> configs/cm_t3517_defconfig
> >>>> configs/cm_t35_defconfig
> >>>> configs/picosam9g45_defconfig
> >>>> configs/pm9261_defconfig
> >>>> configs/pm9263_defconfig
> >>>> configs/sama5d36ek_cmp_mmc_defconfig
> >>>> configs/sama5d36ek_cmp_nandflash_defconfig
> >>>> configs/sama5d36ek_cmp_spiflash_defconfig
> >>>> configs/sama5d3xek_mmc_defconfig
> >>>> configs/sama5d3xek_nandflash_defconfig
> >>>> configs/sama5d3xek_spiflash_defconfig
> >>>> configs/sama5d4ek_mmc_defconfig
> >>>> configs/sama5d4ek_nandflash_defconfig
> >>>> configs/sama5d4ek_spiflash_defconfig
> >>>> configs/zipitz2_defconfig
> >>>
> >>> Not really. I suspect none of those uses EFI_LOADER
> >>
> >>
> >> Why not? I really don't want to limit EFI_LOADER to something I consider
> >> good. It's supposed to be the *one* interface that just works for everyone.
> >>
> >>> There is video driver for atmel which is most of the boards in that
> >>> list, but we can disable EFI_LOADER until they are converted.
> >>
> >>
> >> No, I won't disable EFI_LOADER on any board because it's not converted. I'd
> >> rather add support to EFI_LOADER to support more boards that are not
> >> converted to DM ;).
> >>
> >>> We should avoid adding new features to legacy code paths as it makes
> >>> DM conversion harder and less likely to complete.
> >>
> >>
> >> I agree, but the solution is not to disable EFI_LOADER, it's to convert
> >> boards.
> >>
> >
> > So what is the conclusion on this patch?  I can re-send with a commit
> > msg (although there is not much to say beyond $subject)..  I kinda
> > think we should merge this for now, unless dropping CONFIG_LCD is
> > imminent in which case I can re-work it to drop the CONFIG_LCD and add
> > CONFIG_DM_VIDEO.. EFI_LOADER should definitely support the non-legacy
> > case and probably should not remove the legacy case until it does not
> > exist anymore.
> 
> Yes I think resend with a commit message and apply it.
> 
> I'll look at a patch to make EFI_LOADER depend on DM, which I think
> should have been done at the start. Supporting legacy code paths with
> new features is just not a good idea.

Well, that's very much not how the EFI_LOADER maintainer wants go :)  I
think I'd rather go with disabling the video side of the various boards,
until they're converted.

-- 
Tom
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