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drm: bridge: dw-hdmi: Move IRQ and IO resource allocation to common code

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There's no need to duplicate identical code in multiple drivers (two at
the moment, one more to come soon). Move it to the dw-hdmi core where it
can be shared. If resource allocation ever becomes device-specific later
we'll always have the option of splitting it out again.

While it at pass the platform device to the bind function to avoid
having to cast struct device to struct platform_device.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170117082910.27023-8-laurent.pinchart+renesas@ideasonboard.com
This commit is contained in:
Laurent Pinchart
2017-01-17 10:28:57 +02:00
committed by Archit Taneja
parent ba5d7e6160
commit c608119dfd
4 changed files with 13 additions and 27 deletions
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12
drivers/gpu/drm/imx/dw_hdmi-imx.c
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@@ -207,8 +207,6 @@ static int dw_hdmi_imx_bind(struct device *dev, struct device *master,
struct drm_device *drm = data;
struct drm_encoder *encoder;
struct imx_hdmi *hdmi;
struct resource *iores;
int irq;
int ret;
if (!pdev->dev.of_node)
@@ -223,14 +221,6 @@ static int dw_hdmi_imx_bind(struct device *dev, struct device *master,
hdmi->dev = &pdev->dev;
encoder = &hdmi->encoder;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iores)
return -ENXIO;
encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
/*
* If we failed to find the CRTC(s) which this encoder is
@@ -249,7 +239,7 @@ static int dw_hdmi_imx_bind(struct device *dev, struct device *master,
drm_encoder_init(drm, encoder, &dw_hdmi_imx_encoder_funcs,
DRM_MODE_ENCODER_TMDS, NULL);
ret = dw_hdmi_bind(dev, encoder, iores, irq, plat_data);
ret = dw_hdmi_bind(pdev, encoder, plat_data);
/*
* If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(),