u-boot/arch/arm/mach-rockchip/rk3288/clk_rk3288.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015 Google, Inc
 * Written by Simon Glass <sjg@chromium.org>
 */

#include <common.h>
#include <dm.h>
#include <syscon.h>
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/cru_rk3288.h>

int rockchip_get_clk(struct udevice **devp)
{
	return uclass_get_device_by_driver(UCLASS_CLK,
			DM_GET_DRIVER(rockchip_rk3288_cru), devp);
}

void *rockchip_get_cru(void)
{
	struct rk3288_clk_priv *priv;
	struct udevice *dev;
	int ret;

	ret = rockchip_get_clk(&dev);
	if (ret)
		return ERR_PTR(ret);

	priv = dev_get_priv(dev);

	return priv->cru;
}
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> 2018-05-06 21:58:06 +00:00			`// SPDX-License-Identifier: GPL-2.0+`
rockchip: Add a way to obtain the main clock device On Rockchip SoCs we typically have a main clock device that uses the Soc clock driver. There is also a fixed clock for the oscillator. Add a function to obtain the core clock. Signed-off-by: Simon Glass <sjg@chromium.org> 2016-07-17 21:23:16 +00:00			`/*`
			`* Copyright (C) 2015 Google, Inc`
			`* Written by Simon Glass <sjg@chromium.org>`
			`*/`

			`#include <common.h>`
			`#include <dm.h>`
			`#include <syscon.h>`
rockchip: use 'arch-rockchip' as header file path Rockchip use 'arch-rockchip' instead of arch-$(SOC) as common header file path, so that we can get the correct path directly. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> 2019-03-28 03:01:23 +00:00			`#include <asm/arch-rockchip/clock.h>`
			`#include <asm/arch-rockchip/cru_rk3288.h>`
rockchip: Add a way to obtain the main clock device On Rockchip SoCs we typically have a main clock device that uses the Soc clock driver. There is also a fixed clock for the oscillator. Add a function to obtain the core clock. Signed-off-by: Simon Glass <sjg@chromium.org> 2016-07-17 21:23:16 +00:00
			`int rockchip_get_clk(struct udevice **devp)`
			`{`
			`return uclass_get_device_by_driver(UCLASS_CLK,`
			`DM_GET_DRIVER(rockchip_rk3288_cru), devp);`
			`}`
rockchip: rk3288: Move rockchip_get_cru() out of the driver This function is called from outside the driver. It should be placed into common SoC code. Move it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> 2016-10-02 02:04:52 +00:00
			`void *rockchip_get_cru(void)`
			`{`
			`struct rk3288_clk_priv *priv;`
			`struct udevice *dev;`
			`int ret;`

			`ret = rockchip_get_clk(&dev);`
			`if (ret)`
			`return ERR_PTR(ret);`

			`priv = dev_get_priv(dev);`

			`return priv->cru;`
			`}`