[U-Boot] [PATCH 34/52] rockchip: clk: rk3368: support OF_PLATDATA for the RK3368 clk driver

[Dr. Philipp Tomsich]

> On 21 Jul 2017, at 08:36, Andy Yan <andy.yan at rock-chips.com> wrote:
> 
> Hi Philipp:
> 
> 
> On 2017年07月19日 04:36, Philipp Tomsich wrote:
>> With the RK3368's limited TPL size, we'll want to use OF_PLATFDATA for
>> the SPL stage.  This implements support for OF_PLATDATA in the clock
> 
>    TPL or SPL?

Thanks for catching this.

In fact it was first done for SPL and later reused for TPL (when I split the
CONFIG_IS_ENABLED for TPL and SPL). There may be more of such
confused uses of TPL/SPL lurking in my commit messages...

>> driver for the RK3368.
> 
> 
>> Signed-off-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
>> ---
>> 
>>  drivers/clk/rockchip/clk_rk3368.c | 17 +++++++++++++++++
>>  1 file changed, 17 insertions(+)
>> 
>> diff --git a/drivers/clk/rockchip/clk_rk3368.c b/drivers/clk/rockchip/clk_rk3368.c
>> index d8f06d5..809ad19 100644
>> --- a/drivers/clk/rockchip/clk_rk3368.c
>> +++ b/drivers/clk/rockchip/clk_rk3368.c
>> @@ -8,7 +8,9 @@
>>  #include <common.h>
>>  #include <clk-uclass.h>
>>  #include <dm.h>
>> +#include <dt-structs.h>
>>  #include <errno.h>
>> +#include <mapmem.h>
>>  #include <syscon.h>
>>  #include <asm/arch/clock.h>
>>  #include <asm/arch/cru_rk3368.h>
>> @@ -19,6 +21,12 @@
>>    DECLARE_GLOBAL_DATA_PTR;
>>  +#if CONFIG_IS_ENABLED(OF_PLATDATA)
>> +struct rk3368_clk_plat {
>> +	struct dtd_rockchip_rk3368_cru dtd;
>> +};
>> +#endif
>> +
>>  struct pll_div {
>>  	u32 nr;
>>  	u32 nf;
>> @@ -254,7 +262,11 @@ static struct clk_ops rk3368_clk_ops = {
>>  static int rk3368_clk_probe(struct udevice *dev)
>>  {
>>  	struct rk3368_clk_priv *priv = dev_get_priv(dev);
>> +#if CONFIG_IS_ENABLED(OF_PLATDATA)
>> +	struct rk3368_clk_plat *plat = dev_get_platdata(dev);
>>  +	priv->cru = map_sysmem(plat->dtd.reg[1], plat->dtd.reg[3]);
>> +#endif
>>  	rkclk_init(priv->cru);
>>    	return 0;
>> @@ -262,9 +274,11 @@ static int rk3368_clk_probe(struct udevice *dev)
>>    static int rk3368_clk_ofdata_to_platdata(struct udevice *dev)
>>  {
>> +#if !CONFIG_IS_ENABLED(OF_PLATDATA)
>>  	struct rk3368_clk_priv *priv = dev_get_priv(dev);
>>    	priv->cru = (struct rk3368_cru *)devfdt_get_addr(dev);
>> +#endif
>>    	return 0;
>>  }
>> @@ -291,6 +305,9 @@ U_BOOT_DRIVER(rockchip_rk3368_cru) = {
>>  	.id		= UCLASS_CLK,
>>  	.of_match	= rk3368_clk_ids,
>>  	.priv_auto_alloc_size = sizeof(struct rk3368_clk_priv),
>> +#if CONFIG_IS_ENABLED(OF_PLATDATA)
>> +	.platdata_auto_alloc_size = sizeof(struct rk3368_clk_plat),
>> +#endif
>>  	.ofdata_to_platdata = rk3368_clk_ofdata_to_platdata,
>>  	.ops		= &rk3368_clk_ops,
>>  	.bind		= rk3368_clk_bind,
> 
>