[Deepin-Kernel-SIG] [linux 6.6-y] [CIX] Apply syscon, gpio and phy suppors for CIX

drivers/gpio/gpio-cadence.c

@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
+#include <linux/acpi.h>
 
 #define CDNS_GPIO_BYPASS_MODE		0x00
 #define CDNS_GPIO_DIRECTION_MODE	0x04
@@ -284,10 +285,18 @@ static const struct of_device_id cdns_of_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, cdns_of_ids);
 
+static const struct acpi_device_id cdns_acpi_ids[] = {
+	{ "CIXH1002", 0 },
+	{ "CIXH1003", 0 },
+	{ "", 0 },
+};
+MODULE_DEVICE_TABLE(acpi, cdns_acpi_ids);
+
 static struct platform_driver cdns_gpio_driver = {
 	.driver = {
 		.name = "cdns-gpio",
 		.of_match_table = cdns_of_ids,
+		.acpi_match_table = ACPI_PTR(cdns_acpi_ids),
 	},
 	.probe = cdns_gpio_probe,
 	.remove = cdns_gpio_remove,

drivers/mfd/syscon.c

@@ -25,6 +25,8 @@
 #include <linux/reset.h>
 #include <linux/mfd/syscon.h>
 #include <linux/slab.h>
+#include <linux/acpi.h>
+#include <linux/property.h>
 
 static struct platform_driver syscon_driver;
 
@@ -336,6 +338,30 @@ struct regmap *syscon_regmap_lookup_by_phandle_optional(struct device_node *np,
 }
 EXPORT_SYMBOL_GPL(syscon_regmap_lookup_by_phandle_optional);
 
+struct regmap *device_syscon_regmap_lookup_by_property(struct device *dev,
+						       const char *property)
+{
+	struct fwnode_handle *fwnode;
+	struct platform_device *pdev;
+	struct syscon *syscon;
+
+	if (!has_acpi_companion(dev))
+		return syscon_regmap_lookup_by_phandle(dev->of_node, property);
+
+	fwnode = fwnode_find_reference(dev_fwnode(dev), property, 0);
+	if (IS_ERR_OR_NULL(fwnode))
+		return ERR_PTR(-ENODEV);
+
+	pdev = to_platform_device(fwnode->dev);
+
+	syscon = platform_get_drvdata(pdev);
+	if (!syscon)
+		return ERR_PTR(-ENODEV);
+
+	return syscon->regmap;
+}
+EXPORT_SYMBOL_GPL(device_syscon_regmap_lookup_by_property);
+
 static int syscon_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -378,9 +404,16 @@ static const struct platform_device_id syscon_ids[] = {
 	{ }
 };
 
+static const struct acpi_device_id syscon_acpi_match[] = {
+	{ "CIXHA018", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, syscon_acpi_match);
+
 static struct platform_driver syscon_driver = {
 	.driver = {
 		.name = "syscon",
+		.acpi_match_table = ACPI_PTR(syscon_acpi_match),
 	},
 	.probe		= syscon_probe,
 	.id_table	= syscon_ids,

drivers/phy/Kconfig

@@ -98,5 +98,6 @@ source "drivers/phy/tegra/Kconfig"
 source "drivers/phy/ti/Kconfig"
 source "drivers/phy/intel/Kconfig"
 source "drivers/phy/xilinx/Kconfig"
+source "drivers/phy/cix/Kconfig"
 
 endmenu

drivers/phy/Makefile

@@ -35,4 +35,5 @@ obj-y					+= allwinner/	\
 					   sunplus/	\
 					   tegra/	\
 					   ti/		\
-					   xilinx/
+					   xilinx/	\
+					   cix/

drivers/phy/cix/Kconfig

@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Phy drivers for Cix PHYs
+#
+
+config PHY_CIX_USBDP
+	tristate "Cix USBDP PHY Driver"
+	depends on OF && HAS_IOMEM
+	select GENERIC_PHY
+	help
+	  Enable this to support the CIX USBDP PHY for TYPEC Connection
+
+config PHY_CIX_USB2
+	tristate "Cix USB2 PHY Driver"
+	depends on OF
+	select GENERIC_PHY
+	help
+	  Enable this to support the CIX USB2 PHY
+
+config PHY_CIX_USB3
+	tristate "Cix USB3 PHY Driver"
+	depends on OF && HAS_IOMEM
+	select GENERIC_PHY
+	help
+	  Enable this to support the CIX USB3 PHY for TYPEA Connection

drivers/phy/cix/Makefile

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_PHY_CIX_USBDP) += phy-cix-usbdp.o
+obj-$(CONFIG_PHY_CIX_USB2) += phy-cix-usb2.o
+obj-$(CONFIG_PHY_CIX_USB3) += phy-cix-usb3.o

drivers/phy/cix/phy-cix-usb2.c

@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * phy driver for cdn_usb2_p_sd10000
+ */
+#include <linux/acpi.h>
+#include <linux/reset.h>
+#include <linux/kernel.h>
+#include <linux/of_platform.h>
+
+static const struct acpi_device_id cix_usb2phy_acpi_match[] = {
+	{ "CIXH2032" },
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, cix_usb2phy_acpi_match);
+
+static const struct of_device_id cix_usb2phy_dt_match[] = {
+	{
+		.compatible = "cix,sky1-usb2-phy",
+		.data = NULL
+	},
+	{ /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, cix_usb2phy_dt_match);
+
+static int cix_usb2phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct reset_control *preset;
+
+	preset = devm_reset_control_get(dev, "preset");
+
+	if (IS_ERR(preset))
+		dev_err(dev, "%s: failed to get preset\n", __func__);
+	else
+		reset_control_deassert(preset);
+
+	return 0;
+}
+
+static struct platform_driver cix_usb2phy_driver = {
+	.probe		= cix_usb2phy_probe,
+	.driver		= {
+		.name	= "cix,sky1-usb2-phy",
+		.of_match_table = cix_usb2phy_dt_match,
+		.acpi_match_table = cix_usb2phy_acpi_match,
+		.pm = NULL,
+	},
+};
+
+module_platform_driver(cix_usb2phy_driver);
+
+MODULE_AUTHOR("Chao Zeng <[email protected]>");
+MODULE_DESCRIPTION("Cix Usb2 PHY driver");
+MODULE_LICENSE("GPL");