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SRC supports resets and power gating for mixes. Signed-off-by: Peng Fan --- .../bindings/soc/imx/fsl,imx93-src.yaml | 96 +++++++++++++++++++ include/dt-bindings/power/fsl,imx93-power.h | 11 +++ 2 files changed, 107 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml create mode 100644 include/dt-bindings/power/fsl,imx93-power.h diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml new file mode 100644 index 000000000000..c20f0bb692fe --- /dev/null +++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/imx/fsl,imx93-src.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX9 System Reset Controller + +maintainers: + - Peng Fan + +description: | + The System Reset Controller (SRC) is responsible for the generation of + all the system reset signals and boot argument latching. + + Its main functions are as follows, + - Deals with all global system reset sources from other modules, + and generates global system reset. + - Responsible for power gating of MIXs (Slices) and their memory + low power control. + +properties: + compatible: + items: + - const: fsl,imx93-src + - const: syscon + + reg: + maxItems: 1 + + slice: + type: object + description: list of power domains provided by this controller. + + properties: + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + patternProperties: + "power-domain@[0-9]$": + $ref: /schemas/power/power-domain.yaml# + + type: object + properties: + '#power-domain-cells': + const: 0 + + reg: + description: | + Power domain index. Valid values are defined in + include/dt-bindings/power/imx93-power.h for fsl,imx93-src + maxItems: 1 + + clocks: + description: | + A number of phandles to clocks that need to be enabled + during domain power-up sequencing to ensure reset + propagation into devices located inside this power domain. + minItems: 1 + maxItems: 5 + + required: + - '#power-domain-cells' + - reg + +required: + - compatible + - reg + - slice + +additionalProperties: false + +examples: + - | + #include + #include + + system-controller@44460000 { + compatible = "fsl,imx93-src", "syscon"; + reg = <0x44460000 0x10000>; + + slice { + #address-cells = <1>; + #size-cells = <0>; + + mediamix: power-domain@0 { + reg = ; + #power-domain-cells = <0>; + clocks = <&clk IMX93_CLK_MEDIA_AXI>, + <&clk IMX93_CLK_MEDIA_APB>; + }; + }; + }; diff --git a/include/dt-bindings/power/fsl,imx93-power.h b/include/dt-bindings/power/fsl,imx93-power.h new file mode 100644 index 000000000000..27fb7df80f93 --- /dev/null +++ b/include/dt-bindings/power/fsl,imx93-power.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ +/* + * Copyright 2022 NXP + */ + +#ifndef __DT_BINDINGS_IMX93_POWER_H__ +#define __DT_BINDINGS_IMX93_POWER_H__ + +#define IMX93_POWER_DOMAIN_MEDIAMIX 0 + +#endif From patchwork Thu May 26 12:34:06 2022 Content-Type: text/plain; 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Signed-off-by: Peng Fan Reviewed-by: Krzysztof Kozlowski --- .../soc/imx/fsl,imx93-media-blk-ctrl.yaml | 80 +++++++++++++++++++ include/dt-bindings/power/fsl,imx93-power.h | 6 ++ 2 files changed, 86 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml new file mode 100644 index 000000000000..792ebecec22d --- /dev/null +++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/imx/fsl,imx93-media-blk-ctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX93 Media blk-ctrl + +maintainers: + - Peng Fan + +description: + The i.MX93 MEDIAMIX domain contains control and status registers known + as MEDIAMIX Block Control (MEDIAMIX BLK_CTRL). These registers include + clocking, reset, and miscellaneous top-level controls for peripherals + within the MEDIAMIX domain + +properties: + compatible: + items: + - const: fsl,imx93-media-blk-ctrl + - const: syscon + + reg: + maxItems: 1 + + '#power-domain-cells': + const: 1 + + power-domains: + maxItems: 1 + + clocks: + maxItems: 10 + + clock-names: + items: + - const: apb + - const: axi + - const: nic + - const: disp + - const: cam + - const: pxp + - const: lcdif + - const: isi + - const: csi + - const: dsi + +required: + - compatible + - reg + - power-domains + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include + #include + + media_blk_ctrl: system-controller@4ac10000 { + compatible = "fsl,imx93-media-blk-ctrl", "syscon"; + reg = <0x4ac10000 0x10000>; + power-domains = <&mediamix>; + clocks = <&clk IMX93_CLK_MEDIA_APB>, + <&clk IMX93_CLK_MEDIA_AXI>, + <&clk IMX93_CLK_NIC_MEDIA_GATE>, + <&clk IMX93_CLK_MEDIA_DISP_PIX>, + <&clk IMX93_CLK_CAM_PIX>, + <&clk IMX93_CLK_PXP_GATE>, + <&clk IMX93_CLK_LCDIF_GATE>, + <&clk IMX93_CLK_ISI_GATE>, + <&clk IMX93_CLK_MIPI_CSI_GATE>, + <&clk IMX93_CLK_MIPI_DSI_GATE>; + clock-names = "apb", "axi", "nic", "disp", "cam", + "pxp", "lcdif", "isi", "csi", "dsi"; + #power-domain-cells = <1>; + }; diff --git a/include/dt-bindings/power/fsl,imx93-power.h b/include/dt-bindings/power/fsl,imx93-power.h index 27fb7df80f93..b3d2d9619d3a 100644 --- a/include/dt-bindings/power/fsl,imx93-power.h +++ b/include/dt-bindings/power/fsl,imx93-power.h @@ -8,4 +8,10 @@ #define IMX93_POWER_DOMAIN_MEDIAMIX 0 +#define IMX93_MEDIABLK_PD_MIPI_DSI 0 +#define IMX93_MEDIABLK_PD_MIPI_CSI 1 +#define IMX93_MEDIABLK_PD_PXP 2 +#define IMX93_MEDIABLK_PD_LCDIF 3 +#define IMX93_MEDIABLK_PD_ISI 4 + #endif From patchwork Thu May 26 12:34:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 12862413 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 91392C433EF for ; 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Received: from DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) by AM0PR04MB6515.eurprd04.prod.outlook.com (2603:10a6:208:16f::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5293.13; Thu, 26 May 2022 12:32:46 +0000 Received: from DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::a892:e4a9:4769:13a5]) by DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::a892:e4a9:4769:13a5%7]) with mapi id 15.20.5293.013; Thu, 26 May 2022 12:32:46 +0000 From: "Peng Fan (OSS)" To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, sboyd@kernel.org, mturquette@baylibre.com, shawnguo@kernel.org, s.hauer@pengutronix.de Cc: aisheng.dong@nxp.com, l.stach@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Peng Fan Subject: [PATCH V2 3/7] clk: export of_clk_bulk_get_all Date: Thu, 26 May 2022 20:34:07 +0800 Message-Id: <20220526123411.270083-4-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220526123411.270083-1-peng.fan@oss.nxp.com> References: <20220526123411.270083-1-peng.fan@oss.nxp.com> X-ClientProxiedBy: SI2PR06CA0013.apcprd06.prod.outlook.com (2603:1096:4:186::18) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: e6d1715f-d78f-4443-465a-08da3f13d64c X-MS-TrafficTypeDiagnostic: AM0PR04MB6515:EE_ X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Peng Fan Export of_clk_bulk_get_all, so drivers could use this API. Signed-off-by: Peng Fan --- drivers/clk/clk-bulk.c | 3 ++- include/linux/clk.h | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/clk/clk-bulk.c b/drivers/clk/clk-bulk.c index e9e16425c739..470155856b02 100644 --- a/drivers/clk/clk-bulk.c +++ b/drivers/clk/clk-bulk.c @@ -43,7 +43,7 @@ static int __must_check of_clk_bulk_get(struct device_node *np, int num_clks, return ret; } -static int __must_check of_clk_bulk_get_all(struct device_node *np, +int __must_check of_clk_bulk_get_all(struct device_node *np, struct clk_bulk_data **clks) { struct clk_bulk_data *clk_bulk; @@ -68,6 +68,7 @@ static int __must_check of_clk_bulk_get_all(struct device_node *np, return num_clks; } +EXPORT_SYMBOL_GPL(of_clk_bulk_get_all); void clk_bulk_put(int num_clks, struct clk_bulk_data *clks) { diff --git a/include/linux/clk.h b/include/linux/clk.h index 39faa54efe88..ca74f4e83d25 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -372,6 +372,8 @@ int __must_check clk_bulk_get(struct device *dev, int num_clks, int __must_check clk_bulk_get_all(struct device *dev, struct clk_bulk_data **clks); 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Current supported power domain is mediamix power domain. Signed-off-by: Peng Fan --- drivers/soc/imx/Kconfig | 10 ++ drivers/soc/imx/Makefile | 1 + drivers/soc/imx/imx93-pd.c | 271 +++++++++++++++++++++++++++++++++++++ 3 files changed, 282 insertions(+) create mode 100644 drivers/soc/imx/imx93-pd.c diff --git a/drivers/soc/imx/Kconfig b/drivers/soc/imx/Kconfig index a840494e849a..5bfc1dfea28b 100644 --- a/drivers/soc/imx/Kconfig +++ b/drivers/soc/imx/Kconfig @@ -20,4 +20,14 @@ config SOC_IMX8M support, it will provide the SoC info like SoC family, ID and revision etc. +config SOC_IMX9 + tristate "i.MX9 SoC family support" + depends on ARCH_MXC || COMPILE_TEST + default ARCH_MXC && ARM64 + select SOC_BUS + select PM_GENERIC_DOMAINS + help + If you say yes here you get support for the NXP i.MX9 family + support. + endmenu diff --git a/drivers/soc/imx/Makefile b/drivers/soc/imx/Makefile index 63cd29f6d4d2..e3ed07a6bcf9 100644 --- a/drivers/soc/imx/Makefile +++ b/drivers/soc/imx/Makefile @@ -7,3 +7,4 @@ obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o obj-$(CONFIG_SOC_IMX8M) += soc-imx8m.o obj-$(CONFIG_SOC_IMX8M) += imx8m-blk-ctrl.o obj-$(CONFIG_SOC_IMX8M) += imx8mp-blk-ctrl.o +obj-$(CONFIG_SOC_IMX9) += imx93-pd.o diff --git a/drivers/soc/imx/imx93-pd.c b/drivers/soc/imx/imx93-pd.c new file mode 100644 index 000000000000..c6d204b51c14 --- /dev/null +++ b/drivers/soc/imx/imx93-pd.c @@ -0,0 +1,271 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2022 NXP. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define IMX93_SRC_MEDIAMIX_OFF 0x2400 + +#define MIX_SLICE_SW_CTRL_OFF 0x20 +#define SLICE_SW_CTRL_PSW_CTRL_OFF_MASK BIT(4) +#define SLICE_SW_CTRL_PDN_SOFT_MASK BIT(31) + +#define MIX_FUNC_STAT_OFF 0xB4 + +#define FUNC_STAT_PSW_STAT_MASK BIT(0) +#define FUNC_STAT_RST_STAT_MASK BIT(2) +#define FUNC_STAT_ISO_STAT_MASK BIT(4) + +struct imx93_slice_info { + char *name; + u32 mix_off; +}; + +struct imx93_plat_data { + u32 num_slice; + struct imx93_slice_info *slices; +}; + +struct imx93_power_domain { + struct generic_pm_domain genpd; + struct device *dev; + void * __iomem base; + const struct imx93_slice_info *slice_info; + struct clk_bulk_data *clks; + int num_clks; +}; + +#define to_imx93_pd(_genpd) container_of(_genpd, struct imx93_power_domain, genpd) + +struct imx93_slice_info imx93_slice_infos[] = { + [IMX93_POWER_DOMAIN_MEDIAMIX] = { + .name = "mediamix", + .mix_off = IMX93_SRC_MEDIAMIX_OFF, + } +}; + +struct imx93_plat_data imx93_plat_data = { + .num_slice = ARRAY_SIZE(imx93_slice_infos), + .slices = imx93_slice_infos, +}; + +static int imx93_pd_on(struct generic_pm_domain *genpd) +{ + struct imx93_power_domain *domain = to_imx93_pd(genpd); + const struct imx93_slice_info *slice_info = domain->slice_info; + void * __iomem addr = domain->base + slice_info->mix_off; + u32 val; + int ret; + + ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks); + if (ret) { + dev_err(domain->dev, "failed to enable clocks for domain: %s\n", genpd->name); + return ret; + } + + val = readl(addr + MIX_SLICE_SW_CTRL_OFF); + val &= ~SLICE_SW_CTRL_PDN_SOFT_MASK; + writel(val, addr + MIX_SLICE_SW_CTRL_OFF); + + ret = readl_poll_timeout(addr + MIX_FUNC_STAT_OFF, val, + !(val & FUNC_STAT_ISO_STAT_MASK), 1, 10000); + if (ret) { + dev_err(domain->dev, "pd_on timeout: name: %s, stat: %x\n", genpd->name, val); + return ret; + } + + return 0; +} + +static int imx93_pd_off(struct generic_pm_domain *genpd) +{ + struct imx93_power_domain *domain = to_imx93_pd(genpd); + const struct imx93_slice_info *slice_info = domain->slice_info; + void * __iomem addr = domain->base + slice_info->mix_off; + int ret; + u32 val; + + /* Power off MIX */ + val = readl(addr + MIX_SLICE_SW_CTRL_OFF); + val |= SLICE_SW_CTRL_PDN_SOFT_MASK; + writel(val, addr + MIX_SLICE_SW_CTRL_OFF); + + ret = readl_poll_timeout(addr + MIX_FUNC_STAT_OFF, val, + val & FUNC_STAT_PSW_STAT_MASK, 1, 1000); + if (ret) { + dev_err(domain->dev, "pd_off timeout: name: %s, stat: %x\n", genpd->name, val); + return ret; + } + + clk_bulk_disable_unprepare(domain->num_clks, domain->clks); + + return 0; +}; + +static const struct of_device_id imx93_power_domain_ids[] = { + { .compatible = "fsl,imx93-src", .data = &imx93_plat_data, }, + {}, +}; + +static int imx93_pd_remove(struct platform_device *pdev) +{ + struct imx93_power_domain *pd = platform_get_drvdata(pdev); + struct device *dev = &pdev->dev; + const struct imx93_plat_data *data = of_device_get_match_data(dev); + u32 num_domains = data->num_slice; + struct device_node *slice_np, *np; + int ret; + + slice_np = of_get_child_by_name(pdev->dev.of_node, "slice"); + + for_each_child_of_node(slice_np, np) { + struct imx93_power_domain *domain; + u32 index; + + if (!of_device_is_available(np)) + continue; + + ret = of_property_read_u32(np, "reg", &index); + if (ret) { + dev_err(dev, "Failed to read 'reg' property\n"); + of_node_put(np); + return ret; + } + + if (index >= num_domains) { + dev_warn(dev, "Domain index %d is out of bounds\n", index); + continue; + } + + domain = &pd[index]; + + of_genpd_del_provider(np); + + pm_genpd_remove(&domain->genpd); + clk_bulk_put_all(domain->num_clks, domain->clks); + }; + + return 0; +} + +static int imx93_pd_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + const struct imx93_plat_data *data = of_device_get_match_data(dev); + const struct imx93_slice_info *slice_info = data->slices; + struct imx93_power_domain *pd; + u32 num_domains = data->num_slice; + struct device_node *slice_np, *np; + void __iomem *base; + bool is_off; + int ret; + + slice_np = of_get_child_by_name(dev->of_node, "slice"); + if (!slice_np) { + dev_err(dev, "No slices specified in DT\n"); + return -EINVAL; + } + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + pd = devm_kcalloc(dev, num_domains, sizeof(*pd), GFP_KERNEL); + if (!pd) + return -ENOMEM; + + platform_set_drvdata(pdev, pd); + + for_each_child_of_node(slice_np, np) { + struct imx93_power_domain *domain; + u32 index; + + if (!of_device_is_available(np)) + continue; + + ret = of_property_read_u32(np, "reg", &index); + if (ret) { + dev_err(dev, "Failed to read 'reg' property\n"); + of_node_put(np); + return ret; + } + + if (index >= num_domains) { + dev_warn(dev, "Domain index %d is out of bounds\n", index); + continue; + } + + domain = &pd[index]; + + domain->num_clks = of_clk_bulk_get_all(np, &domain->clks); + if (domain->num_clks < 0) { + return dev_err_probe(domain->dev, domain->num_clks, + "Failed to get %s's clocks\n", + slice_info[index].name); + } + + domain->genpd.name = slice_info[index].name; + domain->genpd.power_off = imx93_pd_off; + domain->genpd.power_on = imx93_pd_on; + domain->slice_info = &slice_info[index]; + domain->base = base; + + is_off = readl(domain->base + slice_info->mix_off + MIX_FUNC_STAT_OFF) & + FUNC_STAT_ISO_STAT_MASK; + /* Just to sync the status of hardware */ + if (!is_off) { + ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks); + if (ret) { + dev_err(domain->dev, "failed to enable clocks for domain: %s\n", + domain->genpd.name); + clk_bulk_put_all(domain->num_clks, domain->clks); + return 0; + } + } + + dev_info(dev, "%s: state: %x\n", domain->genpd.name, + readl(domain->base + MIX_FUNC_STAT_OFF)); + ret = pm_genpd_init(&domain->genpd, NULL, is_off); + if (ret) { + dev_err(dev, "failed to init genpd\n"); + clk_bulk_put_all(domain->num_clks, domain->clks); + return ret; + } + + ret = of_genpd_add_provider_simple(np, &domain->genpd); + if (ret) { + clk_bulk_put_all(domain->num_clks, domain->clks); + return ret; + } + } + + return 0; +} + +static const struct of_device_id imx93_dt_ids[] = { + { .compatible = "fsl,imx93-src", .data = &imx93_plat_data, }, + { } +}; + +static struct platform_driver imx93_power_domain_driver = { + .driver = { + .name = "imx93_power_domain", + .owner = THIS_MODULE, + .of_match_table = imx93_dt_ids, + }, + .probe = imx93_pd_probe, + .remove = imx93_pd_remove, +}; +module_platform_driver(imx93_power_domain_driver); 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Signed-off-by: Peng Fan --- drivers/soc/imx/Makefile | 2 +- drivers/soc/imx/imx93-blk-ctrl.c | 333 +++++++++++++++++++++++++++++++ 2 files changed, 334 insertions(+), 1 deletion(-) create mode 100644 drivers/soc/imx/imx93-blk-ctrl.c diff --git a/drivers/soc/imx/Makefile b/drivers/soc/imx/Makefile index e3ed07a6bcf9..c532aa179f4d 100644 --- a/drivers/soc/imx/Makefile +++ b/drivers/soc/imx/Makefile @@ -7,4 +7,4 @@ obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o obj-$(CONFIG_SOC_IMX8M) += soc-imx8m.o obj-$(CONFIG_SOC_IMX8M) += imx8m-blk-ctrl.o obj-$(CONFIG_SOC_IMX8M) += imx8mp-blk-ctrl.o -obj-$(CONFIG_SOC_IMX9) += imx93-pd.o +obj-$(CONFIG_SOC_IMX9) += imx93-pd.o imx93-blk-ctrl.o diff --git a/drivers/soc/imx/imx93-blk-ctrl.c b/drivers/soc/imx/imx93-blk-ctrl.c new file mode 100644 index 000000000000..0f221a26e69e --- /dev/null +++ b/drivers/soc/imx/imx93-blk-ctrl.c @@ -0,0 +1,333 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/* + * Copyright 2022 NXP, Peng Fan + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define BLK_SFT_RSTN 0x0 +#define BLK_CLK_EN 0x4 + +#define BLK_MAX_CLKS 4 + +struct imx93_blk_ctrl_domain; + +struct imx93_blk_ctrl { + struct device *dev; + struct regmap *regmap; + int num_clks; + struct clk_bulk_data clks[BLK_MAX_CLKS]; + struct imx93_blk_ctrl_domain *domains; + struct genpd_onecell_data onecell_data; +}; + +struct imx93_blk_ctrl_domain_data { + const char *name; + const char * const *clk_names; + int num_clks; + u32 rst_mask; + u32 clk_mask; + +}; + +#define DOMAIN_MAX_CLKS 4 + +struct imx93_blk_ctrl_domain { + struct generic_pm_domain genpd; + const struct imx93_blk_ctrl_domain_data *data; + struct clk_bulk_data clks[DOMAIN_MAX_CLKS]; + struct imx93_blk_ctrl *bc; +}; + +struct imx93_blk_ctrl_data { + int max_reg; + const struct imx93_blk_ctrl_domain_data *domains; + const struct imx93_blk_ctrl_domain_data *bus; + int num_domains; +}; + +static const struct imx93_blk_ctrl_domain_data imx93_media_blk_ctl_bus_data = { + .clk_names = (const char *[]){ "axi", "apb", "nic", }, + .num_clks = 3, +}; + +static inline struct imx93_blk_ctrl_domain * +to_imx93_blk_ctrl_domain(struct generic_pm_domain *genpd) +{ + return container_of(genpd, struct imx93_blk_ctrl_domain, genpd); +} + +static int imx93_blk_ctrl_power_on(struct generic_pm_domain *genpd) +{ + struct imx93_blk_ctrl_domain *domain = to_imx93_blk_ctrl_domain(genpd); + const struct imx93_blk_ctrl_domain_data *data = domain->data; + struct imx93_blk_ctrl *bc = domain->bc; + int ret; + + ret = clk_bulk_prepare_enable(bc->num_clks, bc->clks); + if (ret) { + dev_err(bc->dev, "failed to enable bus clocks\n"); + return ret; + } + + ret = clk_bulk_prepare_enable(data->num_clks, domain->clks); + if (ret) { + dev_err(bc->dev, "failed to enable clocks\n"); + return ret; + } + + ret = pm_runtime_get_sync(bc->dev); + if (ret < 0) { + pm_runtime_put_noidle(bc->dev); + dev_err(bc->dev, "failed to power up domain\n"); + goto disable_clk; + } + + /* ungate clk */ + regmap_clear_bits(bc->regmap, BLK_CLK_EN, data->clk_mask); + + /* release reset */ + regmap_set_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask); + + dev_info(bc->dev, "pd_on: name: %s\n", genpd->name); + + return 0; + +disable_clk: + clk_bulk_disable_unprepare(data->num_clks, domain->clks); + + return ret; +} + +static int imx93_blk_ctrl_power_off(struct generic_pm_domain *genpd) +{ + struct imx93_blk_ctrl_domain *domain = to_imx93_blk_ctrl_domain(genpd); + const struct imx93_blk_ctrl_domain_data *data = domain->data; + struct imx93_blk_ctrl *bc = domain->bc; + + dev_info(bc->dev, "pd_off: name: %s\n", genpd->name); + + regmap_clear_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask); + regmap_set_bits(bc->regmap, BLK_CLK_EN, data->clk_mask); + + pm_runtime_put(bc->dev); + + clk_bulk_disable_unprepare(data->num_clks, domain->clks); + + clk_bulk_disable_unprepare(bc->num_clks, bc->clks); + + return 0; +} + +static struct generic_pm_domain * +imx93_blk_ctrl_xlate(struct of_phandle_args *args, void *data) +{ + struct genpd_onecell_data *onecell_data = data; + unsigned int index = args->args[0]; + + if (args->args_count != 1 || + index >= onecell_data->num_domains) + return ERR_PTR(-EINVAL); + + return onecell_data->domains[index]; +} + +static int imx93_blk_ctrl_probe(struct platform_device *pdev) +{ + const struct imx93_blk_ctrl_data *bc_data; + struct device *dev = &pdev->dev; + struct imx93_blk_ctrl *bc; + void __iomem *base; + int i, ret; + const struct imx93_blk_ctrl_domain_data *bus; + + struct regmap_config regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + }; + + bc = devm_kzalloc(dev, sizeof(*bc), GFP_KERNEL); + if (!bc) + return -ENOMEM; + + bc->dev = dev; + + bc_data = of_device_get_match_data(dev); + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + regmap_config.max_register = bc_data->max_reg; + bc->regmap = devm_regmap_init_mmio(dev, base, ®map_config); + if (IS_ERR(bc->regmap)) + return dev_err_probe(dev, PTR_ERR(bc->regmap), + "failed to init regmap\n"); + + bc->domains = devm_kcalloc(dev, bc_data->num_domains + 1, + sizeof(struct imx93_blk_ctrl_domain), + GFP_KERNEL); + if (!bc->domains) + return -ENOMEM; + + bus = bc_data->bus; + + bc->onecell_data.num_domains = bc_data->num_domains; + bc->onecell_data.xlate = imx93_blk_ctrl_xlate; + bc->onecell_data.domains = + devm_kcalloc(dev, bc_data->num_domains, + sizeof(struct generic_pm_domain *), GFP_KERNEL); + if (!bc->onecell_data.domains) + return -ENOMEM; + + for (i = 0; i < bus->num_clks; i++) + bc->clks[i].id = bus->clk_names[i]; + bc->num_clks = bus->num_clks; + + ret = devm_clk_bulk_get(dev, bc->num_clks, bc->clks); + if (ret) { + dev_err_probe(dev, ret, "failed to get bus clock\n"); + return ret; + } + + for (i = 0; i < bc_data->num_domains; i++) { + const struct imx93_blk_ctrl_domain_data *data = &bc_data->domains[i]; + struct imx93_blk_ctrl_domain *domain = &bc->domains[i]; + int j; + + domain->data = data; + + for (j = 0; j < data->num_clks; j++) + domain->clks[j].id = data->clk_names[j]; + + ret = devm_clk_bulk_get(dev, data->num_clks, domain->clks); + if (ret) { + dev_err_probe(dev, ret, "failed to get clock\n"); + goto cleanup_pds; + } + + domain->genpd.name = data->name; + domain->genpd.power_on = imx93_blk_ctrl_power_on; + domain->genpd.power_off = imx93_blk_ctrl_power_off; + domain->bc = bc; + + ret = pm_genpd_init(&domain->genpd, NULL, true); + if (ret) { + dev_err_probe(dev, ret, "failed to init power domain\n"); + goto cleanup_pds; + } + + bc->onecell_data.domains[i] = &domain->genpd; + } + + pm_runtime_enable(dev); + + ret = of_genpd_add_provider_onecell(dev->of_node, &bc->onecell_data); + if (ret) { + dev_err_probe(dev, ret, "failed to add power domain provider\n"); + goto cleanup_pds; + } + + + dev_set_drvdata(dev, bc); + + return 0; + +cleanup_pds: + for (i--; i >= 0; i--) + pm_genpd_remove(&bc->domains[i].genpd); + + return ret; +} + +static int imx93_blk_ctrl_remove(struct platform_device *pdev) +{ + struct imx93_blk_ctrl *bc = dev_get_drvdata(&pdev->dev); + int i; + + of_genpd_del_provider(pdev->dev.of_node); + + for (i = 0; bc->onecell_data.num_domains; i++) { + struct imx93_blk_ctrl_domain *domain = &bc->domains[i]; + + pm_genpd_remove(&domain->genpd); + } + + return 0; +} + +static const struct imx93_blk_ctrl_domain_data imx93_media_blk_ctl_domain_data[] = { + [IMX93_MEDIABLK_PD_MIPI_DSI] = { + .name = "mediablk-mipi-dsi", + .clk_names = (const char *[]){ "dsi" }, + .num_clks = 1, + .rst_mask = BIT(11) | BIT(12), + .clk_mask = BIT(11) | BIT(12), + }, + [IMX93_MEDIABLK_PD_MIPI_CSI] = { + .name = "mediablk-mipi-csi", + .clk_names = (const char *[]){ "cam", "csi" }, + .num_clks = 2, + .rst_mask = BIT(9) | BIT(10), + .clk_mask = BIT(9) | BIT(10), + }, + [IMX93_MEDIABLK_PD_PXP] = { + .name = "mediablk-pxp", + .clk_names = (const char *[]){ "pxp" }, + .num_clks = 1, + .rst_mask = BIT(7) | BIT(8), + .clk_mask = BIT(7) | BIT(8), + }, + [IMX93_MEDIABLK_PD_LCDIF] = { + .name = "mediablk-lcdif", + .clk_names = (const char *[]){ "disp", "lcdif" }, + .num_clks = 2, + .rst_mask = BIT(4) | BIT(5) | BIT(6), + .clk_mask = BIT(4) | BIT(5) | BIT(6), + }, + [IMX93_MEDIABLK_PD_ISI] = { + .name = "mediablk-isi", + .clk_names = (const char *[]){ "isi" }, + .num_clks = 1, + .rst_mask = BIT(2) | BIT(3), + .clk_mask = BIT(2) | BIT(3), + }, +}; + +static const struct imx93_blk_ctrl_data imx93_media_blk_ctl_dev_data = { + .max_reg = 0x90, + .domains = imx93_media_blk_ctl_domain_data, + .bus = &imx93_media_blk_ctl_bus_data, + .num_domains = ARRAY_SIZE(imx93_media_blk_ctl_domain_data), +}; + +static const struct of_device_id imx93_blk_ctrl_of_match[] = { + { + .compatible = "fsl,imx93-media-blk-ctrl", + .data = &imx93_media_blk_ctl_dev_data + }, { + /* Sentinel */ + } +}; +MODULE_DEVICE_TABLE(of, imx93_blk_ctrl_of_match); + +static struct platform_driver imx93_blk_ctrl_driver = { + .probe = imx93_blk_ctrl_probe, + .remove = imx93_blk_ctrl_remove, + .driver = { + .name = "imx93-blk-ctrl", + .of_match_table = imx93_blk_ctrl_of_match, + }, +}; +module_platform_driver(imx93_blk_ctrl_driver); From patchwork Thu May 26 12:34:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 12862400 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AF327C433F5 for ; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Peng Fan Add i.MX93 SRC node Signed-off-by: Peng Fan --- arch/arm64/boot/dts/freescale/imx93.dtsi | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi index f83a07c7c9b1..f7d4f769db00 100644 --- a/arch/arm64/boot/dts/freescale/imx93.dtsi +++ b/arch/arm64/boot/dts/freescale/imx93.dtsi @@ -7,6 +7,7 @@ #include #include #include +#include #include "imx93-pinfunc.h" @@ -161,6 +162,23 @@ clk: clock-controller@44450000 { status = "okay"; }; + src: system-controller@44460000 { + compatible = "fsl,imx93-src", "syscon"; + reg = <0x44460000 0x10000>; + + slice { + #address-cells = <1>; + #size-cells = <0>; + + mediamix: power-domain@0 { + reg = ; + #power-domain-cells = <0>; + clocks = <&clk IMX93_CLK_MEDIA_AXI>, + <&clk IMX93_CLK_MEDIA_APB>; + }; + }; + }; + anatop: anatop@44480000 { compatible = "fsl,imx93-anatop", "syscon"; reg = <0x44480000 0x10000>; From patchwork Thu May 26 12:34:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 12862401 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 43633C433EF for ; Thu, 26 May 2022 12:35:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Peng Fan Add i.MX93 mediamix blk ctrl node Signed-off-by: Peng Fan --- arch/arm64/boot/dts/freescale/imx93.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi index f7d4f769db00..493d4be710e7 100644 --- a/arch/arm64/boot/dts/freescale/imx93.dtsi +++ b/arch/arm64/boot/dts/freescale/imx93.dtsi @@ -348,5 +348,25 @@ gpio1: gpio@47400080 { #interrupt-cells = <2>; gpio-ranges = <&iomuxc 0 0 32>; }; + + media_blk_ctrl: power-controller@4ac10000 { + compatible = "fsl,imx93-media-blk-ctrl", "syscon"; + reg = <0x4ac10000 0x10000>; + power-domains = <&mediamix>; + clocks = <&clk IMX93_CLK_MEDIA_APB>, + <&clk IMX93_CLK_MEDIA_AXI>, + <&clk IMX93_CLK_NIC_MEDIA_GATE>, + <&clk IMX93_CLK_MEDIA_DISP_PIX>, + <&clk IMX93_CLK_CAM_PIX>, + <&clk IMX93_CLK_PXP_GATE>, + <&clk IMX93_CLK_LCDIF_GATE>, + <&clk IMX93_CLK_ISI_GATE>, + <&clk IMX93_CLK_MIPI_CSI_GATE>, + <&clk IMX93_CLK_MIPI_DSI_GATE>; + clock-names = "apb", "axi", "nic", "disp", "cam", + "pxp", "lcdif", "isi", "csi", "dsi"; + #power-domain-cells = <1>; + status = "disabled"; + }; }; };