Messages in this thread | | | Date | Fri, 14 Feb 2014 00:37:20 +0100 | From | Anatolij Gustschin <> | Subject | Re: [PATCH] gpu:drm:tilcdc: backlight node never found |
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On Thu, 13 Feb 2014 14:47:38 +0100 Heiko Schocher <hs@denx.de> wrote:
> In panel_probe() the backlight node is never found, correct this. > > Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
> Cc: Anatolij Gustschin <agust@denx.de> > Cc: Benoit Parrot <bparrot@ti.com> > Cc: Rob Clark <robdclark@gmail.com> > Cc: David Airlie <airlied@linux.ie> > Cc: Grant Likely <grant.likely@linaro.org> > Cc: Rob Herring <robh+dt@kernel.org> > Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> > Cc: Sachin Kamat <sachin.kamat@linaro.org> > Cc: dri-devel@lists.freedesktop.org > Cc: linux-kernel@vger.kernel.org > Cc: devicetree@vger.kernel.org > --- > drivers/gpu/drm/tilcdc/tilcdc_panel.c | 13 ++++++++++--- > 1 file changed, 10 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/tilcdc/tilcdc_panel.c b/drivers/gpu/drm/tilcdc/tilcdc_panel.c > index 86c6732..0b97cf4 100644 > --- a/drivers/gpu/drm/tilcdc/tilcdc_panel.c > +++ b/drivers/gpu/drm/tilcdc/tilcdc_panel.c > @@ -356,6 +356,7 @@ static struct of_device_id panel_of_match[]; > static int panel_probe(struct platform_device *pdev) > { > struct device_node *node = pdev->dev.of_node; > + struct device_node *backlight_node; > struct panel_module *panel_mod; > struct tilcdc_module *mod; > struct pinctrl *pinctrl; > @@ -395,9 +396,15 @@ static int panel_probe(struct platform_device *pdev) > > mod->preferred_bpp = panel_mod->info->bpp; > > - panel_mod->backlight = of_find_backlight_by_node(node); > - if (panel_mod->backlight) > - dev_info(&pdev->dev, "found backlight\n"); > + backlight_node = of_parse_phandle(pdev->dev.of_node, "backlight", 0); > + if (backlight_node) { > + panel_mod->backlight = > + of_find_backlight_by_node(backlight_node); > + if (panel_mod->backlight) > + dev_info(&pdev->dev, "found backlight\n"); > + } else { > + dev_warn(&pdev->dev, "backlight node missing...\n"); > + } > > return 0; >
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