Re: [PATCH 3/3] drm/msm/dp: Clean up pdev/dev duplication in dp_power

[Dmitry Baryshkov]

On 21/05/2023 06:53, Bjorn Andersson wrote:
> On Sat, May 20, 2023 at 04:26:59AM +0300, Dmitry Baryshkov wrote:
> > On 15/05/2023 06:02, Bjorn Andersson wrote:
> > > The dp_power module keeps track of both the DP controller's struct
> > > platform_device and struct device - with the prior pulled out of the
> > > dp_parser module.
> > >
> > > Clean up the duplication by dropping the platform_device reference and
> > > just track the passed struct device.
> > >
> > > Signed-off-by: Bjorn Andersson <quic_bjorande@xxxxxxxxxxx>
> > > ---
> > >    drivers/gpu/drm/msm/dp/dp_power.c | 16 +++++++---------
> > >    1 file changed, 7 insertions(+), 9 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/msm/dp/dp_power.c b/drivers/gpu/drm/msm/dp/dp_power.c
> > > index 031d2eefef07..9be645f91211 100644
> > > --- a/drivers/gpu/drm/msm/dp/dp_power.c
> > > +++ b/drivers/gpu/drm/msm/dp/dp_power.c
> > > @@ -14,7 +14,6 @@
> > >    struct dp_power_private {
> > >    	struct dp_parser *parser;
> > > -	struct platform_device *pdev;
> > >    	struct device *dev;
> > >    	struct drm_device *drm_dev;
> > >    	struct clk *link_clk_src;
> > > @@ -28,7 +27,7 @@ static int dp_power_clk_init(struct dp_power_private *power)
> > >    {
> > >    	int rc = 0;
> > >    	struct dss_module_power *core, *ctrl, *stream;
> > > -	struct device *dev = &power->pdev->dev;
> > > +	struct device *dev = power->dev;
> > >    	core = &power->parser->mp[DP_CORE_PM];
> > >    	ctrl = &power->parser->mp[DP_CTRL_PM];
> > > @@ -153,7 +152,7 @@ int dp_power_client_init(struct dp_power *dp_power)
> > >    	power = container_of(dp_power, struct dp_power_private, dp_power);
> > > -	pm_runtime_enable(&power->pdev->dev);
> > > +	pm_runtime_enable(power->dev);
> > >    	return dp_power_clk_init(power);
> > >    }
> > > @@ -164,7 +163,7 @@ void dp_power_client_deinit(struct dp_power *dp_power)
> > >    	power = container_of(dp_power, struct dp_power_private, dp_power);
> > > -	pm_runtime_disable(&power->pdev->dev);
> > > +	pm_runtime_disable(power->dev);
> > >    }
> > >    int dp_power_init(struct dp_power *dp_power, bool flip)
> > > @@ -174,11 +173,11 @@ int dp_power_init(struct dp_power *dp_power, bool flip)
> > >    	power = container_of(dp_power, struct dp_power_private, dp_power);
> > > -	pm_runtime_get_sync(&power->pdev->dev);
> > > +	pm_runtime_get_sync(power->dev);
> > >    	rc = dp_power_clk_enable(dp_power, DP_CORE_PM, true);
> > >    	if (rc)
> > > -		pm_runtime_put_sync(&power->pdev->dev);
> > > +		pm_runtime_put_sync(power->dev);
> > >    	return rc;
> > >    }
> > > @@ -190,7 +189,7 @@ int dp_power_deinit(struct dp_power *dp_power)
> > >    	power = container_of(dp_power, struct dp_power_private, dp_power);
> > >    	dp_power_clk_enable(dp_power, DP_CORE_PM, false);
> > > -	pm_runtime_put_sync(&power->pdev->dev);
> > > +	pm_runtime_put_sync(power->dev);
> > >    	return 0;
> > >    }
> > > @@ -199,12 +198,11 @@ struct dp_power *dp_power_get(struct device *dev, struct dp_parser *parser)
> >
> > Technically we don't even need to pass struct device here, we can get it
> > from parser->pdev->dev.
>
> Right, but afaict dp_init_sub_modules() passes struct device * as first
> parameter to all the "module" initializers. So it feels reasonable to
> keep it, for now, for symmetry.
>
> What do you think?

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

--
With best wishes
Dmitry