On Mon, Jun 20, 2016 at 09:43:42AM +0100, Jon Hunter wrote:
> On 17/06/16 17:18, Thierry Reding wrote:
> > On Fri, Jun 17, 2016 at 01:03:38PM +0100, Jon Hunter wrote:
> >> diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c
[...]
> >> + if (of_device_is_compatible(pdev->dev.of_node,
> >> + "nvidia,tegra210-dpaux")) {
> >> + dpaux->clk_sor = devm_clk_get(&pdev->dev, "sor-safe");
> >> + if (IS_ERR(dpaux->clk_sor)) {
> >> + dev_err(&pdev->dev,
> >> + "failed to get sor-safe clock: %ld\n",
> >> + PTR_ERR(dpaux->clk_sor));
> >> + return PTR_ERR(dpaux->clk_sor);
> >> + }
> >> +
> >> + err = clk_prepare_enable(dpaux->clk_sor);
> >> + if (err < 0) {
> >> + dev_err(&pdev->dev,
> >> + "failed to enable sor-safe clock: %d\n", err);
> >> + return err;
> >> + }
> >> + }
> >
> > Please make this part of a struct tegra_dpaux_soc, so that we don't have
> > to check the compatible string again here. This could look like:
> >
> > struct tegra_dpaux_soc {
> > bool needs_safe_clock;
> > };
> >
> > static const struct tegra_dpaux_soc tegra124_dpaux_soc = {
> > .needs_safe_clock = false,
> > };
> >
> > static const struct tegra_dpaux_soc tegra210_dpaux_soc = {
> > .needs_safe_clock = true,
> > };
> >
> > ...
> >
> > static const struct of_device_id tegra_dpaux_of_match[] = {
> > { .compatible = "nvidia,tegra210-dpaux", .data =
> > &tegra210_dpaux_soc },
> > { .compatible = "nvidia,tegra124-dpaux", .data =
> > &tegra124_dpaux_soc },
> > { },
> > };
>
> OK. I wonder if we should call it 'has_safe_clock' because this clock
> does not exist for tegra124 AFAICT. #bikeshed ;-)
has_safe_clock is fine with me, too.
Thierry
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