linux-kernel - Re: [PATCH v8 2/4] soc: mediatek: add MT6765 scpsys and subdomain support

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Message-ID: <c9cefb0b-2394-e48c-f140-3dab55af2369@gmail.com>
Date:   Tue, 6 Apr 2021 16:01:03 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Macpaul Lin <macpaul.lin@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        mtk01761 <wendell.lin@...iatek.com>,
        Fabien Parent <fparent@...libre.com>,
        Weiyi Lu <weiyi.lu@...iatek.com>,
        Mars Cheng <mars.cheng@...iatek.com>,
        Sean Wang <Sean.Wang@...iatek.com>,
        Owen Chen <owen.chen@...iatek.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Evan Green <evgreen@...omium.org>,
        Yong Wu <yong.wu@...iatek.com>, Joerg Roedel <jroedel@...e.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Ryder Lee <Ryder.Lee@...iatek.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-clk@...r.kernel.org
Cc:     Mediatek WSD Upstream <wsd_upstream@...iatek.com>,
        CC Hwang <cc.hwang@...iatek.com>,
        Loda Chou <loda.chou@...iatek.com>
Subject: Re: [PATCH v8 2/4] soc: mediatek: add MT6765 scpsys and subdomain
 support



On 21/02/2020 11:12, Macpaul Lin wrote:
> From: Mars Cheng <mars.cheng@...iatek.com>
> 
> This adds scpsys support for MT6765
> Add subdomain support for MT6765:
> isp, mm, connsys, mfg, and cam.
> 
> Signed-off-by: Mars Cheng <mars.cheng@...iatek.com>
> Signed-off-by: Owen Chen <owen.chen@...iatek.com>
> Signed-off-by: Macpaul Lin <macpaul.lin@...iatek.com>
> ---
>  drivers/soc/mediatek/mtk-scpsys.c |  130 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 130 insertions(+)
> 

Unfortunately scpsys is deprecated in the meantime. Please port you patches to
the new mtk-pm-domains.c driver. The biggest difference is, that the domain and
subdomain structure of the pm domains is describe in device tree instead of
hard-coded in the driver.

Regards,
Matthias

> diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
> index f669d37..9940c6d 100644
> --- a/drivers/soc/mediatek/mtk-scpsys.c
> +++ b/drivers/soc/mediatek/mtk-scpsys.c
> @@ -15,6 +15,7 @@
>  
>  #include <dt-bindings/power/mt2701-power.h>
>  #include <dt-bindings/power/mt2712-power.h>
> +#include <dt-bindings/power/mt6765-power.h>
>  #include <dt-bindings/power/mt6797-power.h>
>  #include <dt-bindings/power/mt7622-power.h>
>  #include <dt-bindings/power/mt7623a-power.h>
> @@ -750,6 +751,120 @@ static void mtk_register_power_domains(struct platform_device *pdev,
>  };
>  
>  /*
> + * MT6765 power domain support
> + */
> +#define SPM_PWR_STATUS_MT6765			0x0180
> +#define SPM_PWR_STATUS_2ND_MT6765		0x0184
> +
> +static const struct scp_domain_data scp_domain_data_mt6765[] = {
> +	[MT6765_POWER_DOMAIN_VCODEC] = {
> +		.name = "vcodec",
> +		.sta_mask = BIT(26),
> +		.ctl_offs = 0x300,
> +		.sram_pdn_bits = GENMASK(8, 8),
> +		.sram_pdn_ack_bits = GENMASK(12, 12),
> +	},
> +	[MT6765_POWER_DOMAIN_ISP] = {
> +		.name = "isp",
> +		.sta_mask = BIT(5),
> +		.ctl_offs = 0x308,
> +		.sram_pdn_bits = GENMASK(8, 8),
> +		.sram_pdn_ack_bits = GENMASK(12, 12),
> +		.subsys_clk_prefix = "isp",
> +		.bp_table = {
> +			BUS_PROT(IFR_TYPE, 0x2A8, 0x2AC, 0, 0x258,
> +				BIT(20), BIT(20)),
> +			BUS_PROT(SMI_TYPE, 0x3C4, 0x3C8, 0, 0x3C0,
> +				BIT(2), BIT(2)),
> +		},
> +	},
> +	[MT6765_POWER_DOMAIN_MM] = {
> +		.name = "mm",
> +		.sta_mask = BIT(3),
> +		.ctl_offs = 0x30C,
> +		.sram_pdn_bits = GENMASK(8, 8),
> +		.sram_pdn_ack_bits = GENMASK(12, 12),
> +		.basic_clk_id = {"mm"},
> +		.subsys_clk_prefix = "mm",
> +		.bp_table = {
> +			BUS_PROT(IFR_TYPE, 0x2A8, 0x2AC, 0, 0x258,
> +				BIT(16) | BIT(17), BIT(16) | BIT(17)),
> +			BUS_PROT(IFR_TYPE, 0x2A0, 0x2A4, 0, 0x228,
> +				BIT(10) | BIT(11), BIT(10) | BIT(11)),
> +			BUS_PROT(IFR_TYPE, 0x2A0, 0x2A4, 0, 0x228,
> +				BIT(1) | BIT(2), BIT(1) | BIT(2)),
> +		},
> +	},
> +	[MT6765_POWER_DOMAIN_CONN] = {
> +		.name = "conn",
> +		.sta_mask = BIT(1),
> +		.ctl_offs = 0x32C,
> +		.sram_pdn_bits = 0,
> +		.sram_pdn_ack_bits = 0,
> +		.bp_table = {
> +			BUS_PROT(IFR_TYPE, 0x2A0, 0x2A4, 0, 0x228,
> +				BIT(13), BIT(13)),
> +			BUS_PROT(IFR_TYPE, 0x2A8, 0x2AC, 0, 0x258,
> +				BIT(18), BIT(18)),
> +			BUS_PROT(IFR_TYPE, 0x2A0, 0x2A4, 0, 0x228,
> +				BIT(14) | BIT(16), BIT(14) | BIT(16)),
> +		},
> +	},
> +	[MT6765_POWER_DOMAIN_MFG_ASYNC] = {
> +		.name = "mfg_async",
> +		.sta_mask = BIT(23),
> +		.ctl_offs = 0x334,
> +		.sram_pdn_bits = 0,
> +		.sram_pdn_ack_bits = 0,
> +		.basic_clk_id = {"mfg"},
> +	},
> +	[MT6765_POWER_DOMAIN_MFG] = {
> +		.name = "mfg",
> +		.sta_mask = BIT(4),
> +		.ctl_offs = 0x338,
> +		.sram_pdn_bits = GENMASK(8, 8),
> +		.sram_pdn_ack_bits = GENMASK(12, 12),
> +		.bp_table = {
> +			BUS_PROT(IFR_TYPE, 0x2A0, 0x2A4, 0, 0x228,
> +				BIT(25), BIT(25)),
> +			BUS_PROT(IFR_TYPE, 0x2A0, 0x2A4, 0, 0x228,
> +				BIT(21) | BIT(22), BIT(21) | BIT(22)),
> +		}
> +	},
> +	[MT6765_POWER_DOMAIN_CAM] = {
> +		.name = "cam",
> +		.sta_mask = BIT(25),
> +		.ctl_offs = 0x344,
> +		.sram_pdn_bits = GENMASK(8, 9),
> +		.sram_pdn_ack_bits = GENMASK(12, 13),
> +		.subsys_clk_prefix = "cam",
> +		.bp_table = {
> +			BUS_PROT(IFR_TYPE, 0x2A8, 0x2AC, 0, 0x258,
> +				BIT(19) | BIT(21), BIT(19) | BIT(21)),
> +			BUS_PROT(IFR_TYPE, 0x2A0, 0x2A4, 0, 0x228,
> +				BIT(20), BIT(20)),
> +			BUS_PROT(SMI_TYPE, 0x3C4, 0x3C8, 0, 0x3C0,
> +				BIT(3), BIT(3)),
> +		}
> +	},
> +	[MT6765_POWER_DOMAIN_MFG_CORE0] = {
> +		.name = "mfg_core0",
> +		.sta_mask = BIT(7),
> +		.ctl_offs = 0x34C,
> +		.sram_pdn_bits = GENMASK(8, 8),
> +		.sram_pdn_ack_bits = GENMASK(12, 12),
> +	},
> +};
> +
> +static const struct scp_subdomain scp_subdomain_mt6765[] = {
> +	{MT6765_POWER_DOMAIN_MM, MT6765_POWER_DOMAIN_CAM},
> +	{MT6765_POWER_DOMAIN_MM, MT6765_POWER_DOMAIN_ISP},
> +	{MT6765_POWER_DOMAIN_MM, MT6765_POWER_DOMAIN_VCODEC},
> +	{MT6765_POWER_DOMAIN_MFG_ASYNC, MT6765_POWER_DOMAIN_MFG},
> +	{MT6765_POWER_DOMAIN_MFG, MT6765_POWER_DOMAIN_MFG_CORE0},
> +};
> +
> +/*
>   * MT6797 power domain support
>   */
>  
> @@ -1032,6 +1147,18 @@ static void mtk_register_power_domains(struct platform_device *pdev,
>  	.bus_prot_reg_update = false,
>  };
>  
> +static const struct scp_soc_data mt6765_data = {
> +	.domains = scp_domain_data_mt6765,
> +	.num_domains = ARRAY_SIZE(scp_domain_data_mt6765),
> +	.subdomains = scp_subdomain_mt6765,
> +	.num_subdomains = ARRAY_SIZE(scp_subdomain_mt6765),
> +	.regs = {
> +		.pwr_sta_offs = SPM_PWR_STATUS_MT6765,
> +		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND_MT6765,
> +	},
> +	.bus_prot_reg_update = true,
> +};
> +
>  static const struct scp_soc_data mt6797_data = {
>  	.domains = scp_domain_data_mt6797,
>  	.num_domains = ARRAY_SIZE(scp_domain_data_mt6797),
> @@ -1088,6 +1215,9 @@ static void mtk_register_power_domains(struct platform_device *pdev,
>  		.compatible = "mediatek,mt2712-scpsys",
>  		.data = &mt2712_data,
>  	}, {
> +		.compatible = "mediatek,mt6765-scpsys",
> +		.data = &mt6765_data,
> +	}, {
>  		.compatible = "mediatek,mt6797-scpsys",
>  		.data = &mt6797_data,
>  	}, {
>