On Thu, Oct 03, 2019 at 12:31:31PM +0530, Jagan Teki wrote:
> On Thu, Oct 3, 2019 at 12:26 PM Chen-Yu Tsai <wens@xxxxxxxx> wrote:
> >
> > On Thu, Oct 3, 2019 at 2:46 PM Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> wrote:
> > >
> > > Allwinner MIPI DSI controllers are supplied with SoC
> > > DSI power rails via VCC-DSI pin.
> > >
> > > Add support for this supply pin by adding voltage
> > > regulator handling code to MIPI DSI driver.
> > >
> > > Tested-by: Merlijn Wajer <merlijn@xxxxxxxxxx>
> > > Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
> > > ---
> > > drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 14 ++++++++++++++
> > > drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h | 2 ++
> > > 2 files changed, 16 insertions(+)
> > >
> > > diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
> > > index 446dc56cc44b..fe9a3667f3a1 100644
> > > --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
> > > +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
> > > @@ -1110,6 +1110,12 @@ static int sun6i_dsi_probe(struct platform_device *pdev)
> > > return PTR_ERR(base);
> > > }
> > >
> > > + dsi->regulator = devm_regulator_get(dev, "vcc-dsi");
> > > + if (IS_ERR(dsi->regulator)) {
> > > + dev_err(dev, "Couldn't get VCC-DSI supply\n");
> > > + return PTR_ERR(dsi->regulator);
> > > + }
> > > +
> > > dsi->regs = devm_regmap_init_mmio_clk(dev, "bus", base,
> > > &sun6i_dsi_regmap_config);
> > > if (IS_ERR(dsi->regs)) {
> > > @@ -1183,6 +1189,13 @@ static int sun6i_dsi_remove(struct platform_device *pdev)
> > > static int __maybe_unused sun6i_dsi_runtime_resume(struct device *dev)
> > > {
> > > struct sun6i_dsi *dsi = dev_get_drvdata(dev);
> > > + int err;
> > > +
> > > + err = regulator_enable(dsi->regulator);
> > > + if (err) {
> > > + dev_err(dsi->dev, "failed to enable VCC-DSI supply: %d\n", err);
> > > + return err;
> > > + }
> > >
> > > reset_control_deassert(dsi->reset);
> > > clk_prepare_enable(dsi->mod_clk);
> > > @@ -1215,6 +1228,7 @@ static int __maybe_unused sun6i_dsi_runtime_suspend(struct device *dev)
> > >
> > > clk_disable_unprepare(dsi->mod_clk);
> > > reset_control_assert(dsi->reset);
> > > + regulator_disable(dsi->regulator);
> > >
> > > return 0;
> > > }
> > > diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
> > > index 5c3ad5be0690..a01d44e9e461 100644
> > > --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
> > > +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
> > > @@ -12,6 +12,7 @@
> > > #include <drm/drm_connector.h>
> > > #include <drm/drm_encoder.h>
> > > #include <drm/drm_mipi_dsi.h>
> > > +#include <linux/regulator/consumer.h>
> >
> > You don't need to include the header file since you are only
> > including a pointer to the struct, and nothing else.
>
> Yes, make sense. I will drop it.
>
> >
> > Otherwise,
> >
> > Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>
>
> thanks.
I've moved the include to the driver that was lacking it while
applying, thanks!
Maxime
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