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Date: Tue, 13 Nov 2018 11:35:30 -0800
From: Nicolas Boichat <drinkcat@...omium.org>
To: Weiyi Lu <weiyi.lu@...iatek.com>
Cc: Matthias Brugger <matthias.bgg@...il.com>, sboyd@...eaurora.org,
Rob Herring <robh@...nel.org>, jamesjj.liao@...iatek.com,
Fan Chen <fan.chen@...iatek.com>,
linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
lkml <linux-kernel@...r.kernel.org>,
linux-mediatek@...ts.infradead.org, linux-clk@...r.kernel.org,
srv_heupstream@...iatek.com
Subject: Re: [PATCH v1 11/11] soc: mediatek: Add MT8183 scpsys support
On Mon, Nov 5, 2018 at 10:43 PM Weiyi Lu <weiyi.lu@...iatek.com> wrote:
>
> Add scpsys driver for MT8183
>
> Signed-off-by: Weiyi Lu <weiyi.lu@...iatek.com>
> ---
> drivers/soc/mediatek/mtk-scpsys.c | 226 ++++++++++++++++++++++++++++++
> 1 file changed, 226 insertions(+)
>
> diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
> index 80be2e05e4e0..57b9f04a69de 100644
> --- a/drivers/soc/mediatek/mtk-scpsys.c
> +++ b/drivers/soc/mediatek/mtk-scpsys.c
> @@ -29,6 +29,7 @@
> #include <dt-bindings/power/mt7622-power.h>
> #include <dt-bindings/power/mt7623a-power.h>
> #include <dt-bindings/power/mt8173-power.h>
> +#include <dt-bindings/power/mt8183-power.h>
>
> #define MTK_POLL_DELAY_US 10
> #define MTK_POLL_TIMEOUT (jiffies_to_usecs(HZ))
> @@ -1179,6 +1180,217 @@ static const struct scp_subdomain scp_subdomain_mt8173[] = {
> {MT8173_POWER_DOMAIN_MFG_2D, MT8173_POWER_DOMAIN_MFG},
> };
>
> +/*
> + * MT8183 power domain support
> + */
> +
> +static const struct scp_domain_data scp_domain_data_mt8183[] = {
> + [MT8183_POWER_DOMAIN_AUDIO] = {
> + .name = "audio",
> + .sta_mask = PWR_STATUS_AUDIO,
> + .ctl_offs = 0x0314,
> + .sram_pdn_bits = GENMASK(11, 8),
> + .sram_pdn_ack_bits = GENMASK(15, 12),
> + .basic_clk_name = {"audio"},
> + },
> + [MT8183_POWER_DOMAIN_CONN] = {
> + .name = "conn",
> + .sta_mask = PWR_STATUS_CONN,
> + .ctl_offs = 0x032c,
> + .sram_pdn_bits = 0,
> + .sram_pdn_ack_bits = 0,
> + .bp_table = {
> + [0] = BUS_PROT(IFR_TYPE, 0x2a0, 0x2a4, 0, 0x228,
> + BIT(13) | BIT(14), BIT(13) | BIT(14)),
> + },
> + },
> + [MT8183_POWER_DOMAIN_MFG_ASYNC] = {
> + .name = "mfg_async",
> + .sta_mask = PWR_STATUS_MFG_ASYNC,
> + .ctl_offs = 0x0334,
> + .sram_pdn_bits = 0,
> + .sram_pdn_ack_bits = 0,
> + .basic_clk_name = {"mfg"},
> + },
> + [MT8183_POWER_DOMAIN_MFG] = {
> + .name = "mfg",
> + .sta_mask = PWR_STATUS_MFG,
> + .ctl_offs = 0x0338,
> + .sram_pdn_bits = GENMASK(8, 8),
> + .sram_pdn_ack_bits = GENMASK(12, 12),
> + },
> + [MT8183_POWER_DOMAIN_MFG_CORE0] = {
> + .name = "mfg_core0",
> + .sta_mask = BIT(7),
> + .ctl_offs = 0x034c,
> + .sram_pdn_bits = GENMASK(8, 8),
> + .sram_pdn_ack_bits = GENMASK(12, 12),
> + },
> + [MT8183_POWER_DOMAIN_MFG_CORE1] = {
> + .name = "mfg_core1",
> + .sta_mask = BIT(20),
> + .ctl_offs = 0x0310,
> + .sram_pdn_bits = GENMASK(8, 8),
> + .sram_pdn_ack_bits = GENMASK(12, 12),
> + },
> + [MT8183_POWER_DOMAIN_MFG_2D] = {
> + .name = "mfg_2d",
> + .sta_mask = PWR_STATUS_MFG_2D,
> + .ctl_offs = 0x0348,
> + .sram_pdn_bits = GENMASK(8, 8),
> + .sram_pdn_ack_bits = GENMASK(12, 12),
> + .bp_table = {
> + [0] = BUS_PROT(IFR_TYPE, 0x2a8, 0x2ac, 0, 0x258,
> + BIT(19) | BIT(20) | BIT(21),
> + BIT(19) | BIT(20) | BIT(21)),
> + [1] = BUS_PROT(IFR_TYPE, 0x2a0, 0x2a4, 0, 0x228,
> + BIT(21) | BIT(22), BIT(21) | BIT(22)),
> + },
> + },
> + [MT8183_POWER_DOMAIN_DISP] = {
> + .name = "disp",
> + .sta_mask = PWR_STATUS_DISP,
> + .ctl_offs = 0x030c,
> + .sram_pdn_bits = GENMASK(8, 8),
> + .sram_pdn_ack_bits = GENMASK(12, 12),
> + .basic_clk_name = {"mm"},
> + .subsys_clk_prefix = "mm",
> + .bp_table = {
> + [0] = BUS_PROT(IFR_TYPE, 0x2a8, 0x2ac, 0, 0x258,
> + BIT(16) | BIT(17), BIT(16) | BIT(17)),
> + [1] = BUS_PROT(IFR_TYPE, 0x2a0, 0x2a4, 0, 0x228,
> + BIT(10) | BIT(11), BIT(10) | BIT(11)),
> + [2] = BUS_PROT(SMI_TYPE, 0x3c4, 0x3c8, 0, 0x3c0,
> + GENMASK(7, 0), GENMASK(7, 0)),
> + },
> + },
> + [MT8183_POWER_DOMAIN_CAM] = {
> + .name = "cam",
> + .sta_mask = BIT(25),
> + .ctl_offs = 0x0344,
> + .sram_pdn_bits = GENMASK(9, 8),
> + .sram_pdn_ack_bits = GENMASK(13, 12),
> + .basic_clk_name = {"cam"},
> + .subsys_clk_prefix = "cam",
> + .bp_table = {
> + [0] = BUS_PROT(IFR_TYPE, 0x2d4, 0x2d8, 0, 0x2ec,
> + BIT(4) | BIT(5) | BIT(9) | BIT(13),
> + BIT(4) | BIT(5) | BIT(9) | BIT(13)),
> + [1] = BUS_PROT(IFR_TYPE, 0x2a0, 0x2a4, 0, 0x228,
> + BIT(28), BIT(28)),
> + [2] = BUS_PROT(IFR_TYPE, 0x2d4, 0x2d8, 0, 0x2ec,
> + BIT(11), 0),
> + [3] = BUS_PROT(SMI_TYPE, 0x3c4, 0x3c8, 0, 0x3c0,
> + BIT(3) | BIT(4), BIT(3) | BIT(4)),
Why do you need to specify the indexes ([0], [1], ...)? Can you just
use automatic indexes? (especially considering that your code assumes
there is no gap in the bp_table entries.
> + },
> + },
> + [MT8183_POWER_DOMAIN_ISP] = {
> + .name = "isp",
> + .sta_mask = PWR_STATUS_ISP,
> + .ctl_offs = 0x0308,
> + .sram_pdn_bits = GENMASK(9, 8),
> + .sram_pdn_ack_bits = GENMASK(13, 12),
> + .basic_clk_name = {"isp"},
> + .subsys_clk_prefix = "isp",
> + .bp_table = {
> + [0] = BUS_PROT(IFR_TYPE, 0x2d4, 0x2d8, 0, 0x2ec,
> + BIT(3) | BIT(8), BIT(3) | BIT(8)),
> + [1] = BUS_PROT(IFR_TYPE, 0x2d4, 0x2d8, 0, 0x2ec,
> + BIT(10), 0),
> + [2] = BUS_PROT(SMI_TYPE, 0x3c4, 0x3c8, 0, 0x3c0,
> + BIT(2), BIT(2)),
> + },
> + },
> + [MT8183_POWER_DOMAIN_VDEC] = {
> + .name = "vdec",
> + .sta_mask = BIT(31),
> + .ctl_offs = 0x0300,
> + .sram_pdn_bits = GENMASK(8, 8),
> + .sram_pdn_ack_bits = GENMASK(12, 12),
> + .bp_table = {
> + [0] = BUS_PROT(SMI_TYPE, 0x3c4, 0x3c8, 0, 0x3c0,
> + BIT(7), BIT(7)),
> + },
> + },
> + [MT8183_POWER_DOMAIN_VENC] = {
> + .name = "venc",
> + .sta_mask = PWR_STATUS_VENC,
> + .ctl_offs = 0x0304,
> + .sram_pdn_bits = GENMASK(11, 8),
> + .sram_pdn_ack_bits = GENMASK(15, 12),
> + .bp_table = {
> + [0] = BUS_PROT(SMI_TYPE, 0x3c4, 0x3c8, 0, 0x3c0,
> + BIT(1), BIT(1)),
> + },
> + },
> + [MT8183_POWER_DOMAIN_VPU_TOP] = {
> + .name = "vpu_top",
> + .sta_mask = BIT(26),
> + .ctl_offs = 0x0324,
> + .sram_pdn_bits = GENMASK(8, 8),
> + .sram_pdn_ack_bits = GENMASK(12, 12),
> + .basic_clk_name = {"vpu", "vpu1"},
> + .subsys_clk_prefix = "vpu",
> + .bp_table = {
> + [0] = BUS_PROT(IFR_TYPE, 0x2d4, 0x2d8, 0, 0x2ec,
> + GENMASK(9, 6) | BIT(12),
> + GENMASK(9, 6) | BIT(12)),
> + [1] = BUS_PROT(IFR_TYPE, 0x2a0, 0x2a4, 0, 0x228,
> + BIT(27), BIT(27)),
> + [2] = BUS_PROT(IFR_TYPE, 0x2d4, 0x2d8, 0, 0x2ec,
> + BIT(10) | BIT(11), BIT(10) | BIT(11)),
> + [3] = BUS_PROT(SMI_TYPE, 0x3c4, 0x3c8, 0, 0x3c0,
> + BIT(5) | BIT(6), BIT(5) | BIT(6)),
> + },
> + },
> + [MT8183_POWER_DOMAIN_VPU_CORE0] = {
> + .name = "vpu_core0",
> + .sta_mask = BIT(27),
> + .ctl_offs = 0x33c,
> + .sram_iso_ctrl = true,
> + .sram_pdn_bits = GENMASK(11, 8),
> + .sram_pdn_ack_bits = GENMASK(13, 12),
> + .basic_clk_name = {"vpu2"},
> + .bp_table = {
> + [0] = BUS_PROT(IFR_TYPE, 0x2c4, 0x2c8, 0, 0x2e4,
> + BIT(6), BIT(6)),
> + [1] = BUS_PROT(IFR_TYPE, 0x2c4, 0x2c8, 0, 0x2e4,
> + BIT(0) | BIT(2) | BIT(4),
> + BIT(0) | BIT(2) | BIT(4)),
> + },
> + },
> + [MT8183_POWER_DOMAIN_VPU_CORE1] = {
> + .name = "vpu_core1",
> + .sta_mask = BIT(28),
> + .ctl_offs = 0x0340,
> + .sram_iso_ctrl = true,
> + .sram_pdn_bits = GENMASK(11, 8),
> + .sram_pdn_ack_bits = GENMASK(13, 12),
> + .basic_clk_name = {"vpu3"},
> + .bp_table = {
> + [0] = BUS_PROT(IFR_TYPE, 0x2c4, 0x2c8, 0, 0x2e4,
> + BIT(7), BIT(7)),
> + [1] = BUS_PROT(IFR_TYPE, 0x2c4, 0x2c8, 0, 0x2e4,
> + BIT(1) | BIT(3) | BIT(5),
> + BIT(1) | BIT(3) | BIT(5)),
> + },
> + },
> +};
> +
> +static const struct scp_subdomain scp_subdomain_mt8183[] = {
> + {MT8183_POWER_DOMAIN_MFG_ASYNC, MT8183_POWER_DOMAIN_MFG},
> + {MT8183_POWER_DOMAIN_MFG, MT8183_POWER_DOMAIN_MFG_2D},
> + {MT8183_POWER_DOMAIN_MFG, MT8183_POWER_DOMAIN_MFG_CORE0},
> + {MT8183_POWER_DOMAIN_MFG, MT8183_POWER_DOMAIN_MFG_CORE1},
> + {MT8183_POWER_DOMAIN_DISP, MT8183_POWER_DOMAIN_CAM},
> + {MT8183_POWER_DOMAIN_DISP, MT8183_POWER_DOMAIN_ISP},
> + {MT8183_POWER_DOMAIN_DISP, MT8183_POWER_DOMAIN_VDEC},
> + {MT8183_POWER_DOMAIN_DISP, MT8183_POWER_DOMAIN_VENC},
> + {MT8183_POWER_DOMAIN_DISP, MT8183_POWER_DOMAIN_VPU_TOP},
> + {MT8183_POWER_DOMAIN_VPU_TOP, MT8183_POWER_DOMAIN_VPU_CORE0},
> + {MT8183_POWER_DOMAIN_VPU_TOP, MT8183_POWER_DOMAIN_VPU_CORE1},
> +};
> +
> static const struct scp_soc_data mt2701_data = {
> .domains = scp_domain_data_mt2701,
> .num_domains = ARRAY_SIZE(scp_domain_data_mt2701),
> @@ -1245,6 +1457,17 @@ static const struct scp_soc_data mt8173_data = {
> .bus_prot_reg_update = true,
> };
>
> +static const struct scp_soc_data mt8183_data = {
> + .domains = scp_domain_data_mt8183,
> + .num_domains = ARRAY_SIZE(scp_domain_data_mt8183),
> + .subdomains = scp_subdomain_mt8183,
> + .num_subdomains = ARRAY_SIZE(scp_subdomain_mt8183),
> + .regs = {
> + .pwr_sta_offs = 0x0180,
> + .pwr_sta2nd_offs = 0x0184
> + }
> +};
> +
> /*
> * scpsys driver init
> */
> @@ -1268,6 +1491,9 @@ static const struct of_device_id of_scpsys_match_tbl[] = {
> }, {
> .compatible = "mediatek,mt8173-scpsys",
> .data = &mt8173_data,
> + }, {
> + .compatible = "mediatek,mt8183-scpsys",
> + .data = &mt8183_data,
> }, {
> /* sentinel */
> }
> --
> 2.18.0
>
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