linux-kernel - Re: [PATCH v3 2/3] soc: rockchip: power-domain: Modify power domain driver for rk3368

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Date:	Tue, 12 Jan 2016 09:57:31 +0800
From:	Caesar Wang <caesar.upstream@...il.com>
To:	zhangqing <zhangqing@...k-chips.com>
Cc:	Caesar Wang <caesar.upstream@...il.com>, mark.rutland@....com,
	devicetree@...r.kernel.org, khilman@...aro.org,
	huangtao@...k-chips.com, heiko@...ech.de, pawel.moll@....com,
	ijc+devicetree@...lion.org.uk, linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org, robh+dt@...nel.org,
	galak@...eaurora.org, zyw@...k-chips.com,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 2/3] soc: rockchip: power-domain: Modify power domain
 driver for rk3368

在 2016年01月12日 16:57, zhangqing 写道:
> hi Caesar Wang
>
> you need check the datasheet again.
> > The rk3368 datasheet:
> > PMU_PMU_BUS_IDLE_ST  ----->ack_vio[8]----->ack status
>             ----->idle_vio[24]----->idle status
> > PMU_PMU_BUS_IDLE_REQ ---->idle_req_vio[8]----->idle req

You are right from the new datasheet.

>
> On 01/11/2016 05:27 AM, Caesar Wang wrote:
>> Hi zhangqin,
>>
>>  From my datasheet "Rockchip RK3368 TRM V2.0.pdf"
>> Maybe i'm missing something.
>>
>>
>> 在 2016年01月11日 18:36, zhangqing 写道:
>>> This driver is modified to support RK3368 SoC.
>>>
>>> Signed-off-by: zhangqing <zhangqing@...k-chips.com>
>>> ---
>>>   drivers/soc/rockchip/pm_domains.c | 33
>>> +++++++++++++++++++++++++++++++++
>>>   1 file changed, 33 insertions(+)
>>>
>>> diff --git a/drivers/soc/rockchip/pm_domains.c
>>> b/drivers/soc/rockchip/pm_domains.c
>>> index 534c589..6cdffb1 100644
>>> --- a/drivers/soc/rockchip/pm_domains.c
>>> +++ b/drivers/soc/rockchip/pm_domains.c
>>> @@ -18,6 +18,7 @@
>>>   #include <linux/regmap.h>
>>>   #include <linux/mfd/syscon.h>
>>>   #include <dt-bindings/power/rk3288-power.h>
>>> +#include <dt-bindings/power/rk3368-power.h>
>>>   struct rockchip_domain_info {
>>>       int pwr_mask;
>>> @@ -75,6 +76,9 @@ struct rockchip_pmu {
>>>   #define DOMAIN_RK3288(pwr, status, req)        \
>>>       DOMAIN(pwr, status, req, req, (req) + 16)
>>> +#define DOMAIN_RK3368(pwr, status, req)        \
>>> +    DOMAIN(pwr, status, req, (req) + 16, req)
>>> +
>>
>> You should  remove it, that's seem same with the rk3288.
>>
>> The rk3368 datasheet:
>> PMU_PMU_BUS_IDLE_ST  ----->idle_vio[24]----->ack
>> PMU_PMU_BUS_IDLE_REQ ---->idle_req_vio[8]----->idle
>>
>>>   static bool rockchip_pmu_domain_is_idle(struct rockchip_pm_domain 
>>> *pd)
>>>   {
>>>       struct rockchip_pmu *pmu = pd->pmu;
>>> @@ -444,6 +448,14 @@ static const struct rockchip_domain_info
>>> rk3288_pm_domains[] = {
>>>       [RK3288_PD_GPU]        = DOMAIN_RK3288(9, 9, 2),
>>>   };
>>> +static const struct rockchip_domain_info rk3368_pm_domains[] = {
>>> +    [RK3368_PD_PERI]    = DOMAIN_RK3368(13, 12, 6),
>>> +    [RK3368_PD_VIO]        = DOMAIN_RK3368(15, 14, 8),
>>> +    [RK3368_PD_VIDEO]    = DOMAIN_RK3368(14, 13, 7),
>>> +    [RK3368_PD_GPU_0]    = DOMAIN_RK3368(16, 15, 2),
>>> +    [RK3368_PD_GPU_1]    = DOMAIN_RK3368(17, 16, 2),
>>> +};
>>> +
>>>   static const struct rockchip_pmu_info rk3288_pmu = {
>>>       .pwr_offset = 0x08,
>>>       .status_offset = 0x0c,
>>> @@ -461,11 +473,32 @@ static const struct rockchip_pmu_info rk3288_pmu
>>> = {
>>>       .domain_info = rk3288_pm_domains,
>>>   };
>>> +static const struct rockchip_pmu_info rk3368_pmu = {
>>> +    .pwr_offset = 0x0c,
>>> +    .status_offset = 0x10,
>>> +    .req_offset = 0x3c,
>>> +    .idle_offset = 0x40,
>>> +    .ack_offset = 0x40,
>>> +
>>> +    .core_pwrcnt_offset = 0x48,
>>> +    .gpu_pwrcnt_offset = 0x50,
>>> +
>>> +    .core_power_transition_time = 24,
>>> +    .gpu_power_transition_time = 24,
>>> +
>>> +    .num_domains = ARRAY_SIZE(rk3368_pm_domains),
>>> +    .domain_info = rk3368_pm_domains,
>>> +};
>>> +
>>>   static const struct of_device_id rockchip_pm_domain_dt_match[] = {
>>>       {
>>>           .compatible = "rockchip,rk3288-power-controller",
>>>           .data = (void *)&rk3288_pmu,
>>>       },
>>> +    {
>>> +        .compatible = "rockchip,rk3368-power-controller",
>>> +        .data = (void *)&rk3368_pmu,
>>> +    },
>>>       { /* sentinel */ },
>>>   };
>>>
>>> -- 
>>> Thanks,
>>> Caesar
>>
>>
>>
>
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip

-- 
Thanks,
Caesar

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