1 // SPDX-License-Identifier: GPL-2.0 2 3 #include <linux/array_size.h> 4 #include <linux/of.h> 5 #include <linux/mfd/core.h> 6 #include <linux/mfd/syscon.h> 7 #include <linux/of_platform.h> 8 #include <linux/platform_device.h> 9 10 static const struct mfd_cell mpfs_mss_top_sysreg_devs[] = { 11 MFD_CELL_NAME("mpfs-reset"), 12 }; 13 14 static int mpfs_mss_top_sysreg_probe(struct platform_device *pdev) 15 { 16 struct device *dev = &pdev->dev; 17 int ret; 18 19 ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE, 20 mpfs_mss_top_sysreg_devs, 21 ARRAY_SIZE(mpfs_mss_top_sysreg_devs), NULL, 22 0, NULL); 23 if (ret) 24 return ret; 25 26 return devm_of_platform_populate(dev); 27 } 28 29 static const struct of_device_id mpfs_mss_top_sysreg_of_match[] = { 30 { .compatible = "microchip,mpfs-mss-top-sysreg", }, 31 {}, 32 }; 33 MODULE_DEVICE_TABLE(of, mpfs_mss_top_sysreg_of_match); 34 35 static struct platform_driver mpfs_mss_top_sysreg_driver = { 36 .driver = { 37 .name = "mpfs-mss-top-sysreg", 38 .of_match_table = mpfs_mss_top_sysreg_of_match, 39 }, 40 .probe = mpfs_mss_top_sysreg_probe, 41 }; 42 module_platform_driver(mpfs_mss_top_sysreg_driver); 43 44 MODULE_LICENSE("GPL"); 45 MODULE_AUTHOR("Conor Dooley <conor.dooley@microchip.com>"); 46 MODULE_DESCRIPTION("PolarFire SoC mss top sysreg driver"); 47