Re: [PATCH RESEND v2 1/2] m68k/atari: add platform device for Falcon IDE port

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Hi Michael,

On Thu, Sep 26, 2019 at 5:54 AM Michael Schmitz <schmitzmic@xxxxxxxxx> wrote:
Autoloading of Falcon IDE driver modules requires converting
these drivers to platform drivers.

Add platform device for Falcon IDE interface in Atari platform
setup code in preparation for this.

Signed-off-by: Michael Schmitz <schmitzmic@xxxxxxxxx>

--

This should be a triple dash.


Changes from RFC

- fix region size (spotted by Szymon Bieganski <S.Bieganski@xxxxxxxxx>)
- define IDE interface address in atari/config.c, create platform device
  always (suggested by Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>)

Changes from v1

- add error checking for Falcon IDE platform device register

Thanks for the update!

--- a/arch/m68k/atari/config.c
+++ b/arch/m68k/atari/config.c
@@ -939,6 +959,13 @@ int __init atari_platform_init(void)
                        atari_scsi_tt_rsrc, ARRAY_SIZE(atari_scsi_tt_rsrc));
 #endif

+       if (ATARIHW_PRESENT(IDE)) {
+               pdev = platform_device_register_simple("atari-falcon-ide", -1,
+                       atari_falconide_rsrc, ARRAY_SIZE(atari_falconide_rsrc));
+               if (IS_ERR(pdev))
+                       rv = PTR_ERR(pdev);
+       }
+
        return rv;
 }

This breaks both falconide and pata_falcon, as it marks the resource
busy:

    ide: Falcon IDE controller
    falconide: resources busy

and

    pata_falcon: Atari Falcon PATA controller
    pata_falcon: resources busy

For pata_falcon, that regression can easily be fixed by merging both patches.
For falconide, I think the sensible thing to do is just remove the driver.
But before that, the defconfigs should be updated to use pata_falcon
instead of falconide.

For the actual code changes:
Reviewed-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds



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