linux-kernel - Re: [RFC 2/7] capebus: Add beaglebone board support

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Message-Id: <DE47929E-9579-4DD2-B01C-08554D49FADE@antoniou-consulting.com>
Date:	Tue, 30 Oct 2012 22:16:47 +0200
From:	Pantelis Antoniou <panto@...oniou-consulting.com>
To:	Tony Lindgren <tony@...mide.com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Koen Kooi <koen@...inion.thruhere.net>,
	Matt Porter <mporter@...com>, Russ Dill <Russ.Dill@...com>,
	linux-omap@...r.kernel.org
Subject: Re: [RFC 2/7] capebus: Add beaglebone board support

On Oct 30, 2012, at 9:39 PM, Tony Lindgren wrote:

> * Pantelis Antoniou <panto@...oniou-consulting.com> [121030 12:00]:
>> +
>> +	priv->lcdc_oh = omap_hwmod_lookup("lcdc");
>> +	if (priv->lcdc_oh == NULL) {
>> +		dev_err(&pdev->dev, "Failed to lookup omap_hwmod lcdc\n");
>> +		return -ENODEV;
>> +	}
>> +
>> +	priv->lcdc_pdev = omap_device_build("da8xx_lcdc", 0, priv->lcdc_oh,
>> +			&priv->lcd_pdata,
>> +			sizeof(struct da8xx_lcdc_platform_data),
>> +			NULL, 0, 0);
>> +	if (priv->lcdc_pdev == NULL) {
>> +		dev_err(&pdev->dev, "Failed to build LCDC device\n");
>> +		return -ENODEV;
>> +	}
> 
> ..and these kind of things need to become private to
> arch/arm/mach-omap2, we already have it working for other
> devices with device tree.
> 
> Regards,
> 
> Tony

I see,

I know that if the device driver is DTified it will pick up the hwmod automatically.
The issue is that the driver is question is not yet; how would I go about
creating the platform device and having it pick up the hwmod automatically?

Regards

-- Pantelis

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