Commit e2bb1834 authored by Nicolas Saenz Julienne's avatar Nicolas Saenz Julienne Committed by Stephen Boyd
Browse files

clk: raspberrypi: register platform device for raspberrypi-cpufreq 



As 'clk-raspberrypi' depends on RPi's firmware interface, which might be
configured as a module, the cpu clock might not be available for the
cpufreq driver during it's init process. So we register the
'raspberrypi-cpufreq' platform device after the probe sequence succeeds.

Signed-off-by: default avatarNicolas Saenz Julienne <nsaenzjulienne@suse.de>
Acked-by: default avatarEric Anholt <eric@anholt.net>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 91f2cf4a

drivers/clk/bcm/clk-raspberrypi.c

+15 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ 
struct raspberrypi_clk {

	struct device *dev;

	struct rpi_firmware *firmware;

	struct platform_device *cpufreq;



	unsigned long min_rate;

	unsigned long max_rate;
@@ -272,6 +273,7 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) 


	rpi->dev = dev;

	rpi->firmware = firmware;

	platform_set_drvdata(pdev, rpi);



	ret = raspberrypi_register_pllb(rpi);

	if (ret) {
@@ -283,6 +285,18 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) 
	if (ret)

		return ret;



	rpi->cpufreq = platform_device_register_data(dev, "raspberrypi-cpufreq",

						     -1, NULL, 0);



	return 0;

}



static int raspberrypi_clk_remove(struct platform_device *pdev)

{

	struct raspberrypi_clk *rpi = platform_get_drvdata(pdev);



	platform_device_unregister(rpi->cpufreq);



	return 0;

}
@@ -291,6 +305,7 @@ static struct platform_driver raspberrypi_clk_driver = { 
		.name = "raspberrypi-clk",

	},

	.probe          = raspberrypi_clk_probe,

	.remove		= raspberrypi_clk_remove,

};

module_platform_driver(raspberrypi_clk_driver);

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