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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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13
drivers/gpu/drm/bridge/dw-hdmi.c
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@@ -1843,14 +1843,16 @@ static int dw_hdmi_register(struct drm_encoder *encoder, struct dw_hdmi *hdmi)
return 0;
}
int dw_hdmi_bind(struct device *dev, struct drm_encoder *encoder,
struct resource *iores, int irq,
int dw_hdmi_bind(struct platform_device *pdev, struct drm_encoder *encoder,
const struct dw_hdmi_plat_data *plat_data)
{
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct platform_device_info pdevinfo;
struct device_node *ddc_node;
struct dw_hdmi *hdmi;
struct resource *iores;
int irq;
int ret;
u32 val = 1;
u8 config0;
@@ -1903,6 +1905,7 @@ int dw_hdmi_bind(struct device *dev, struct drm_encoder *encoder,
dev_dbg(hdmi->dev, "no ddc property found\n");
}
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hdmi->regs = devm_ioremap_resource(dev, iores);
if (IS_ERR(hdmi->regs)) {
ret = PTR_ERR(hdmi->regs);
@@ -1945,6 +1948,10 @@ int dw_hdmi_bind(struct device *dev, struct drm_encoder *encoder,
initialize_hdmi_ih_mutes(hdmi);
irq = platform_get_irq(pdev, 0);
if (irq < 0)
goto err_iahb;
ret = devm_request_threaded_irq(dev, irq, dw_hdmi_hardirq,
dw_hdmi_irq, IRQF_SHARED,
dev_name(dev), hdmi);
@@ -2025,7 +2032,7 @@ int dw_hdmi_bind(struct device *dev, struct drm_encoder *encoder,
if (hdmi->i2c)
dw_hdmi_i2c_init(hdmi);
dev_set_drvdata(dev, hdmi);
platform_set_drvdata(pdev, hdmi);
return 0;