linux-kernel - [PATCH v1 5/7] soc: imx: gpcv2: add HSIOMIX and USB domains for i.MX8MM

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Date:   Wed,  7 Apr 2021 23:21:20 +0200
From:   Adrien Grassein <adrien.grassein@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        l.stach@...gutronix.de, Anson.Huang@....com, krzk@...nel.org,
        peng.fan@....com, aisheng.dong@....com, qiangqing.zhang@....com,
        alice.guo@....com, aford173@...il.com, agx@...xcpu.org,
        andrew.smirnov@...il.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Adrien Grassein <adrien.grassein@...il.com>
Subject: [PATCH v1 5/7] soc: imx: gpcv2: add HSIOMIX and USB domains for i.MX8MM

Add description for 3 domains of the i.MX8MM:
  - HSIO
  - USB OTG 1
  - USB OTG 2

Signed-off-by: Adrien Grassein <adrien.grassein@...il.com>
---
 drivers/soc/imx/gpcv2.c | 69 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
index d97a53502753..571d0381dd87 100644
--- a/drivers/soc/imx/gpcv2.c
+++ b/drivers/soc/imx/gpcv2.c
@@ -17,6 +17,8 @@
 #include <linux/sizes.h>
 #include <dt-bindings/power/imx7-power.h>
 #include <dt-bindings/power/imx8mq-power.h>
+#include <dt-bindings/power/imx8mm-power.h>
+
 
 #define GPC_LPCR_A_CORE_BSC			0x000
 
@@ -42,6 +44,9 @@
 #define IMX8M_PCIE1_A53_DOMAIN			BIT(3)
 #define IMX8M_MIPI_A53_DOMAIN			BIT(2)
 
+#define IMX8MM_OTG2_A53_DOMAIN			BIT(5)
+#define IMX8MM_OTG1_A53_DOMAIN			BIT(4)
+
 #define GPC_PU_PGC_SW_PUP_REQ		0x0f8
 #define GPC_PU_PGC_SW_PDN_REQ		0x104
 
@@ -65,6 +70,9 @@
 #define IMX8M_PCIE1_SW_Pxx_REQ			BIT(1)
 #define IMX8M_MIPI_SW_Pxx_REQ			BIT(0)
 
+#define IMX8MM_OTG1_SW_Pxx_REQ			BIT(2)
+#define IMX8MM_OTG2_SW_Pxx_REQ			BIT(3)
+
 #define GPC_M4_PU_PDN_FLG		0x1bc
 
 #define GPC_PU_PWRHSK			0x1fc
@@ -76,6 +84,9 @@
 #define IMX8M_DISP_HSK_PWRDNREQN		BIT(4)
 #define IMX8M_DISP_HSK_PWRDNACKN		BIT(24)
 
+#define IMX8MM_HSIO_HSK_PWRDNREQN		(BIT(5) | BIT(6))
+#define IMX8MM_HSIO_HSK_PWRDNACKN		(BIT(23) | BIT(24))
+
 /*
  * The PGC offset values in Reference Manual
  * (Rev. 1, 01/2018 and the older ones) GPC chapter's
@@ -98,6 +109,9 @@
 #define IMX8M_PGC_MIPI_CSI2		28
 #define IMX8M_PGC_PCIE2			29
 
+#define IMX8MM_PGC_OTG1			18
+#define IMX8MM_PGC_OTG2			19
+
 #define GPC_PGC_CTRL(n)			(0x800 + (n) * 0x40)
 #define GPC_PGC_SR(n)			(GPC_PGC_CTRL(n) + 0xc)
 
@@ -572,6 +586,60 @@ static const struct imx_pgc_domain_data imx8m_pgc_domain_data = {
 	.reg_access_table = &imx8m_access_table,
 };
 
+static const struct imx_pgc_domain imx8mm_pgc_domains[] = {
+	[IMX8MM_POWER_DOMAIN_HSIOMIX] = {
+		.genpd = {
+			.name = "hsiomix",
+		},
+		.bits  = {
+			.hsk_req = IMX8MM_HSIO_HSK_PWRDNREQN,
+			.hsk_ack = IMX8MM_HSIO_HSK_PWRDNACKN,
+		},
+	},
+
+	[IMX8MM_POWER_DOMAIN_USB_OTG1] = {
+		.genpd      = {
+			.name = "usb-otg1",
+		},
+		.bits       = {
+			.pxx = IMX8MM_OTG1_SW_Pxx_REQ,
+			.map = IMX8MM_OTG1_A53_DOMAIN,
+		},
+		.pgc        = IMX8MM_PGC_OTG1,
+	},
+
+	[IMX8MM_POWER_DOMAIN_USB_OTG2] = {
+		.genpd      = {
+			.name = "usb-otg2",
+		},
+		.bits       =  {
+			.pxx = IMX8MM_OTG2_SW_Pxx_REQ,
+			.map = IMX8MM_OTG2_A53_DOMAIN,
+		},
+		.pgc        = IMX8MM_PGC_OTG2,
+	},
+};
+
+static const struct regmap_range imx8mm_yes_ranges[] = {
+		regmap_reg_range(GPC_LPCR_A_CORE_BSC,
+				 GPC_PU_PWRHSK),
+		regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_OTG1),
+				 GPC_PGC_SR(IMX8MM_PGC_OTG1)),
+		regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_OTG2),
+				 GPC_PGC_SR(IMX8MM_PGC_OTG2)),
+};
+
+static const struct regmap_access_table imx8mm_access_table = {
+	.yes_ranges	= imx8mm_yes_ranges,
+	.n_yes_ranges	= ARRAY_SIZE(imx8mm_yes_ranges),
+};
+
+static const struct imx_pgc_domain_data imx8mm_pgc_domain_data = {
+	.domains = imx8mm_pgc_domains,
+	.domains_num = ARRAY_SIZE(imx8mm_pgc_domains),
+	.reg_access_table = &imx8mm_access_table,
+};
+
 static int imx_pgc_get_clocks(struct imx_pgc_domain *domain)
 {
 	int i, ret;
@@ -766,6 +834,7 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
 static const struct of_device_id imx_gpcv2_dt_ids[] = {
 	{ .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
 	{ .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, },
+	{ .compatible = "fsl,imx8mm-gpc", .data = &imx8mm_pgc_domain_data, },
 	{ }
 };
 
-- 
2.25.1