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

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Message-ID: <5693ADD1.4000207@gmail.com>
Date:	Mon, 11 Jan 2016 21:27:45 +0800
From:	Caesar Wang <caesar.upstream@...il.com>
To:	zhangqing <zhangqing@...k-chips.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 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