[U-Boot] [PATCH v2 2/3] rockchip: rk3399: Move rockchip_get_cru() out of the driver

[Kever Yang <kever.yang@rock-chips.com>]

Hi Simon,

On 10/02/2016 10:04 AM, Simon Glass wrote:
> This function is called from outside the driver. It should be placed into
> common SoC code. Move it.
>
> Also rename the driver symbol to be more consistent with the other rockchip
> clock drivers.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
> Changes in v2: None
>
>   arch/arm/include/asm/arch-rockchip/cru_rk3399.h |  6 +++++
>   arch/arm/mach-rockchip/rk3399/Makefile          |  1 +
>   arch/arm/mach-rockchip/rk3399/clk_rk3399.c      | 33 +++++++++++++++++++++++++
>   drivers/clk/rockchip/clk_rk3399.c               | 24 +-----------------
>   4 files changed, 41 insertions(+), 23 deletions(-)
>   create mode 100644 arch/arm/mach-rockchip/rk3399/clk_rk3399.c
>
> diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3399.h b/arch/arm/include/asm/arch-rockchip/cru_rk3399.h
> index 6776e48..98fba2b 100644
> --- a/arch/arm/include/asm/arch-rockchip/cru_rk3399.h
> +++ b/arch/arm/include/asm/arch-rockchip/cru_rk3399.h
> @@ -9,6 +9,12 @@
>   
>   #include <common.h>
>   
> +/* Private data for the clock driver - used by rockchip_get_cru() */
> +struct rk3399_clk_priv {
> +	struct rk3399_cru *cru;
> +	ulong rate;
> +};
> +
>   struct rk3399_pmucru {
>   	u32 ppll_con[6];
>   	u32 reserved[0x1a];
> diff --git a/arch/arm/mach-rockchip/rk3399/Makefile b/arch/arm/mach-rockchip/rk3399/Makefile
> index 607f9c9..98ebeac 100644
> --- a/arch/arm/mach-rockchip/rk3399/Makefile
> +++ b/arch/arm/mach-rockchip/rk3399/Makefile
> @@ -4,5 +4,6 @@
>   # SPDX-License-Identifier:     GPL-2.0+
>   #
>   
> +obj-y += clk_rk3399.o
>   obj-y += rk3399.o
>   obj-y += syscon_rk3399.o
> diff --git a/arch/arm/mach-rockchip/rk3399/clk_rk3399.c b/arch/arm/mach-rockchip/rk3399/clk_rk3399.c
> new file mode 100644
> index 0000000..7663591
> --- /dev/null
> +++ b/arch/arm/mach-rockchip/rk3399/clk_rk3399.c
> @@ -0,0 +1,33 @@
> +/*
> + * Copyright (C) 2016 Google, Inc
> + * Written by Simon Glass <sjg@chromium.org>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <syscon.h>
> +#include <asm/arch/clock.h>
> +#include <asm/arch/cru_rk3399.h>
> +
> +int rockchip_get_clk(struct udevice **devp)
> +{
> +	return uclass_get_device_by_driver(UCLASS_CLK,
> +			DM_GET_DRIVER(rockchip_rk3399_pmuclk), devp);
> +}
> +
> +void *rockchip_get_cru(void)
> +{
> +	struct rk3399_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;
> +}
> diff --git a/drivers/clk/rockchip/clk_rk3399.c b/drivers/clk/rockchip/clk_rk3399.c
> index ea0ce2a..2e87e4b 100644
> --- a/drivers/clk/rockchip/clk_rk3399.c
> +++ b/drivers/clk/rockchip/clk_rk3399.c
> @@ -18,11 +18,6 @@
>   
>   DECLARE_GLOBAL_DATA_PTR;
>   
> -struct rk3399_clk_priv {
> -	struct rk3399_cru *cru;
> -	ulong rate;
> -};
> -
>   struct rk3399_pmuclk_priv {
>   	struct rk3399_pmucru *pmucru;
>   };
> @@ -780,23 +775,6 @@ static struct clk_ops rk3399_clk_ops = {
>   	.set_rate = rk3399_clk_set_rate,
>   };
>   
> -void *rockchip_get_cru(void)
> -{
> -	struct udevice *dev;
> -	fdt_addr_t *addr;
> -	int ret;
> -
> -	ret = uclass_get_device_by_name(UCLASS_CLK, "clk_rk3399", &dev);
> -	if (ret)
> -		return ERR_PTR(ret);
> -
> -	addr = dev_get_addr_ptr(dev);
> -	if ((fdt_addr_t)addr == FDT_ADDR_T_NONE)
> -		return ERR_PTR(-EINVAL);
> -
> -	return addr;
> -}
> -
>   static int rk3399_clk_probe(struct udevice *dev)
>   {
>   	struct rk3399_clk_priv *priv = dev_get_priv(dev);
> @@ -990,7 +968,7 @@ static const struct udevice_id rk3399_pmuclk_ids[] = {
>   	{ }
>   };
>   
> -U_BOOT_DRIVER(pmuclk_rk3399) = {
> +U_BOOT_DRIVER(rockchip_rk3399_pmuclk) = {
>   	.name		= "pmuclk_rk3399",
>   	.id		= UCLASS_CLK,
>   	.of_match	= rk3399_pmuclk_ids,


Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

Thanks,
- Kever