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

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Message-ID: <5694BFE4.1070200@rock-chips.com>
Date:	Tue, 12 Jan 2016 00:57:08 -0800
From:	zhangqing <zhangqing@...k-chips.com>
To:	Caesar Wang <caesar.upstream@...il.com>
CC:	heiko@...ech.de, robh+dt@...nel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org, khilman@...aro.org,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	huangtao@...k-chips.com, zyw@...k-chips.com,
	linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/3] soc: rockchip: power-domain: Modify power domain
 driver for rk3368

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

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
>
>
>