From e2bb18347c8e5c4187831f3700c380e3c759601a Mon Sep 17 00:00:00 2001 From: Nicolas Saenz Julienne Date: Wed, 12 Jun 2019 20:24:57 +0200 Subject: [PATCH] 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: Nicolas Saenz Julienne Acked-by: Eric Anholt Signed-off-by: Stephen Boyd --- drivers/clk/bcm/clk-raspberrypi.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index fef1f7caee4f..1654fd0eedc9 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -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);