On Mon, Jan 13, 2014 at 10:44:26AM -0700, Stephen Warren wrote: > On 01/13/2014 07:21 AM, Thierry Reding wrote: > > The mask of possible CRTCs that an output (DRM encoder) can be attached > > to is relative to the position within the DRM device's list of CRTCs. > > Deferred probing can cause this to not match the pipe number associated > > with a CRTC. Use the newly introduced drm_crtc_mask() to compute the > > mask by looking up the proper index of the given CRTC in the list. > > > diff --git a/drivers/gpu/drm/tegra/rgb.c b/drivers/gpu/drm/tegra/rgb.c > > > @@ -258,7 +258,7 @@ int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc) > > > - rgb->output.encoder.possible_crtcs = 1 << dc->pipe; > > + rgb->output.encoder.possible_crtcs = drm_crtc_mask(&dc->base); > > For me, on top of either next-20140109 or next-20140113, this causes: > > > drivers/gpu/drm/tegra/rgb.c: In function ‘tegra_dc_rgb_init’: > > drivers/gpu/drm/tegra/rgb.c:261:2: error: implicit declaration of function ‘drm_crtc_mask’ [-Werror=implicit-function-declaration] It depends on a separate patch that I sent earlier yesterday. I thought I had Cc'ed you and the linux-tegra mailing list on that patch, but I'm misremembering apparently. Here's a link to the patch: https://patchwork.kernel.org/patch/3475421/ Thierry
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