Re: [RFC 00/21] drm: fb emulation: Step 3: Remove FB_KMS_HELPER config from drivers

[Thierry Reding <thierry.reding@gmail.com>]

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On Tue, Jul 14, 2015 at 12:01:51PM +0530, Archit Taneja wrote:
> Hi,
> 
> On 07/13/2015 09:07 PM, Daniel Vetter wrote:
> >On Mon, Jul 13, 2015 at 11:30:34AM -0400, Alex Deucher wrote:
> >>On Mon, Jul 13, 2015 at 2:43 AM, Archit Taneja <architt@codeaurora.org> wrote:
> >>>With the top level DRM_FBDEV_EMULATION option, drivers don't need to
> >>>select DRM_FB_KMS_HELPER or other FB related config options in the
> >>>driver.
> >>>
> >>>Even if FBDEV_EMULATION isn't select, the stubbed out versions of
> >>>the drm_fb_helper functions will be called.
> >>>
> >>>There are some drivers which still need some FB stuff even after
> >>>these changes. They are qxl, udl and nouveau. These are handled a bit
> >>>differently compared to the other patches.
> >>
> >>Series is:
> >>Acked-by: Alex Deucher <alexander.deucher@amd.com>
> >
> >Archit for merging I think I'll just keep the current set of patches I
> >have for testing (well until there's a real bug discovered). Can you
> >please collect all the acks/r-bs/t-d when resending so I don't have to
> >digg them out when we merge the final versions of these?
> >
> 
> Sure. I'll keep a track of this.
> 
> Speaking of bugs, there was one thing I noticed in the series which I
> am not sure about.
> 
> One of the new helpers wraps around framebuffer_alloc(). Most drivers
> tend to pass the drm_device's dev pointer to this, and this is what I
> do in the helper too.
> 
> But some drivers(nouveau, radeon, qxl and some more) pass their
> pci_dev's dev pointer.

As far as I can tell, for all PCI drivers the drm_device's dev pointer
is set to the pci_dev's dev pointer (via drm_get_pci_dev()), so this
shouldn't be changing anything at all.

Thierry

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