Hi Archit,
On Thu, 7 Sep 2017 15:06:13 +0530
Archit Taneja <architt@xxxxxxxxxxxxxx> wrote:
>
> > +
> > +static void cdns_dsi_bridge_disable(struct drm_bridge *bridge)
> > +{
> > + struct cdns_dsi_input *input = bridge_to_cdns_dsi_input(bridge);
> > + struct cdns_dsi *dsi = input_to_dsi(input);
> > + u32 val;
> > +
> > + val = readl(dsi->regs + MCTL_MAIN_DATA_CTL);
> > + val &= ~(IF_VID_SELECT_MASK | IF_VID_MODE | VID_EN | HOST_EOT_GEN |
> > + DISP_EOT_GEN);
>
> I see some truncation related sparse warnings here and a couple of other places
> when building against arm32. Those would be nice to fix.
I had a look and it seems to happen everytime I use GENMASK() (the
truncation is harmless, but sparse complains).
If you don't mind, I'd prefer to keep GENMASK() rather than manually
defining masks, but maybe you have an idea how to fix these warnings
without getting rid of GENMASK().
>
> > + writel(val, dsi->regs + MCTL_MAIN_DATA_CTL);
> > +
> > + val = readl(dsi->regs + MCTL_MAIN_EN) & ~IF_EN(input->id);
> > + writel(val, dsi->regs + MCTL_MAIN_EN);
> > +}
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