kernel: update apu led patch for apu3 and 4

[people/pmueller/ipfire-2.x.git] / src / patches / linux / linux-4.14-apu_leds.patch

diff -Naur linux-4.14.101.org/arch/x86/Kconfig linux-4.14.101/arch/x86/Kconfig
--- linux-4.14.101.org/arch/x86/Kconfig	2019-02-15 09:08:56.000000000 +0100
+++ linux-4.14.101/arch/x86/Kconfig	2019-02-18 22:24:00.682722072 +0100
@@ -2715,6 +2715,7 @@
 	   - AC adapter status updates
 	   - Battery status updates
 
+
 config ALIX
 	bool "PCEngines ALIX System Support (LED setup)"
 	select GPIOLIB
@@ -2753,6 +2754,18 @@
 
 endif # X86_32
 
+config APULED
+	bool "PCEngines APU Led Support"
+	depends on DMI
+	---help---
+	  This option enables system support for the PCEngines APU1.
+
+config APU2LED
+	bool "PCEngines APU2/3/4 Led Support"
+	depends on DMI
+	---help---
+	  This option enables system support for the PCEngines APU2/3/4.
+
 config AMD_NB
 	def_bool y
 	depends on CPU_SUP_AMD && PCI
diff -Naur linux-4.14.101.org/arch/x86/platform/apu/apu2-led.c linux-4.14.101/arch/x86/platform/apu/apu2-led.c
--- linux-4.14.101.org/arch/x86/platform/apu/apu2-led.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-4.14.101/arch/x86/platform/apu/apu2-led.c	2019-02-18 22:30:08.503059825 +0100
@@ -0,0 +1,183 @@
+/*
+ * LEDs driver for PCEngines apu2/3/4
+ *
+ * this basic driver only set the output, configuration 
+ * has already done by bios/coreboot.
+ * suspend/resume was not tested because IPFire not use it.
+ *
+ * Copyright (C) 2016 Arne Fitzenreiter <arne_f@ipfire.org> ,
+ * based on Christian Herzog's apu_led.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <asm/io.h>
+#include <linux/dmi.h>
+
+#define DRVNAME		"apu2-led"
+#define BASEADDR	(0xFED81610)
+
+static struct platform_device *pdev;
+unsigned int *apu2_led_p1;
+unsigned int *apu2_led_p2;
+unsigned int *apu2_led_p3;
+
+static void apu2_led_set_1(struct led_classdev *led_cdev,
+		enum led_brightness value) {
+	if (value)
+		iowrite32((ioread32(apu2_led_p1)&~BIT(22)), apu2_led_p1);
+	else
+		iowrite32((ioread32(apu2_led_p1)|BIT(22)), apu2_led_p1);
+}
+
+static void apu2_led_set_2(struct led_classdev *led_cdev,
+		enum led_brightness value) {
+	if (value)
+		iowrite32((ioread32(apu2_led_p2)&~BIT(22)), apu2_led_p2);
+	else
+		iowrite32((ioread32(apu2_led_p2)|BIT(22)), apu2_led_p2);
+}
+
+static void apu2_led_set_3(struct led_classdev *led_cdev,
+		enum led_brightness value) {
+	if (value)
+		iowrite32((ioread32(apu2_led_p3)&~BIT(22)), apu2_led_p3);
+	else
+		iowrite32((ioread32(apu2_led_p3)|BIT(22)), apu2_led_p3);
+}
+
+static struct led_classdev apu2_led_1 = {
+	.name		= "apu:1",
+	.brightness_set	= apu2_led_set_1,
+};
+
+static struct led_classdev apu2_led_2 = {
+	.name		= "apu:2",
+	.brightness_set	= apu2_led_set_2,
+};
+
+static struct led_classdev apu2_led_3 = {
+	.name		= "apu:3",
+	.brightness_set	= apu2_led_set_3,
+};
+
+
+#ifdef CONFIG_PM
+static int apu2_led_suspend(struct platform_device *dev,
+		pm_message_t state)
+{
+	led_classdev_suspend(&apu2_led_1);
+	led_classdev_suspend(&apu2_led_2);
+	led_classdev_suspend(&apu2_led_3);
+	return 0;
+}
+
+static int apu2_led_resume(struct platform_device *dev)
+{
+	led_classdev_resume(&apu2_led_1);
+	led_classdev_resume(&apu2_led_2);
+	led_classdev_resume(&apu2_led_3);
+	return 0;
+}
+#else
+#define apu2_led_suspend NULL
+#define apu2_led_resume NULL
+#endif
+
+static int apu2_led_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = led_classdev_register(&pdev->dev, &apu2_led_1);
+	if (ret == 0)
+	{
+		ret = led_classdev_register(&pdev->dev, &apu2_led_2);
+		if (ret >= 0)
+		{
+			ret = led_classdev_register(&pdev->dev, &apu2_led_3);
+			if (ret < 0)
+				led_classdev_unregister(&apu2_led_2);
+		}
+		if (ret < 0)
+			led_classdev_unregister(&apu2_led_1);
+	}
+	return ret;
+}
+
+static int apu2_led_remove(struct platform_device *pdev)
+{
+	led_classdev_unregister(&apu2_led_1);
+	led_classdev_unregister(&apu2_led_2);
+	led_classdev_unregister(&apu2_led_3);
+	return 0;
+}
+
+static struct platform_driver apu2_led_driver = {
+	.probe		= apu2_led_probe,
+	.remove		= apu2_led_remove,
+	.suspend	= apu2_led_suspend,
+	.resume		= apu2_led_resume,
+	.driver		= {
+	.name		= DRVNAME,
+	.owner		= THIS_MODULE,
+	},
+};
+
+static int __init apu2_led_init(void)
+{
+	int ret=0;
+	const char *vendor, *product;
+
+	vendor = dmi_get_system_info(DMI_SYS_VENDOR);
+	if (!vendor || strcmp(vendor, "PC Engines"))
+		goto out;
+
+	product = dmi_get_system_info(DMI_PRODUCT_NAME);
+	if (!product || ( strcmp(product, "PC Engines apu2") &&
+			  strcmp(product, "PC Engines apu3") &&
+			  strcmp(product, "PC Engines apu4") &&
+			  strcmp(product, "apu2") ) ) // apu2 on early bios relases
+			goto out;
+
+	printk(KERN_INFO "%s: system is recognized as \"%s %s\"\n",
+	       KBUILD_MODNAME, vendor, product);
+
+	ret = platform_driver_register(&apu2_led_driver);
+	if (ret < 0)
+		goto out;
+
+	pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
+	if (IS_ERR(pdev)) {
+		ret = PTR_ERR(pdev);
+		platform_driver_unregister(&apu2_led_driver);
+		goto out;
+	}
+
+	apu2_led_p1 = ioremap(BASEADDR, 4);
+	apu2_led_p2 = ioremap(BASEADDR+4, 4);
+	apu2_led_p3 = ioremap(BASEADDR+8, 4);
+
+out:
+	return ret;
+}
+
+static void __exit apu2_led_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&apu2_led_driver);
+}
+
+module_init(apu2_led_init);
+module_exit(apu2_led_exit);
+
+MODULE_AUTHOR("Arne Fitzenreiter");
+MODULE_DESCRIPTION("PCEngines apu2/3/4 LED driver");
+MODULE_LICENSE("GPL");
diff -Naur linux-4.14.101.org/arch/x86/platform/apu/apu-led.c linux-4.14.101/arch/x86/platform/apu/apu-led.c
--- linux-4.14.101.org/arch/x86/platform/apu/apu-led.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-4.14.101/arch/x86/platform/apu/apu-led.c	2019-02-18 22:24:00.686721439 +0100
@@ -0,0 +1,181 @@
+/*
+ * LEDs driver for PCEngines apu
+ *
+ * Copyright (C) 2013 Christian Herzog <daduke@daduke.org>, based on
+ * Petr Leibman's leds-alix
+ * Hardware presence check added by Arne Fitzenreiter <arne_f@ipfire.org>
+ * Based on leds-wrap.c
+ * Hardware info taken from http://www.dpie.com/manuals/miniboards/kontron/KTD-S0043-0_KTA55_SoftwareGuide.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <asm/io.h>
+#include <linux/dmi.h>
+
+#define DRVNAME		"apu-led"
+#define BASEADDR	(0xFED801BD)
+#define LEDON		(0x8)
+#define LEDOFF		(0xC8)
+
+static struct platform_device *pdev;
+unsigned int *apu_led_p1;
+unsigned int *apu_led_p2;
+unsigned int *apu_led_p3;
+
+static void apu_led_set_1(struct led_classdev *led_cdev,
+		enum led_brightness value) {
+	if (value)
+		iowrite8(LEDON, apu_led_p1);
+	else
+		iowrite8(LEDOFF, apu_led_p1);
+}
+
+static void apu_led_set_2(struct led_classdev *led_cdev,
+		enum led_brightness value) {
+	if (value)
+		iowrite8(LEDON, apu_led_p2);
+	else
+		iowrite8(LEDOFF, apu_led_p2);
+}
+
+static void apu_led_set_3(struct led_classdev *led_cdev,
+		enum led_brightness value) {
+	if (value)
+		iowrite8(LEDON, apu_led_p3);
+	else
+		iowrite8(LEDOFF, apu_led_p3);
+}
+
+static struct led_classdev apu_led_1 = {
+	.name		= "apu:1",
+	.brightness_set	= apu_led_set_1,
+};
+
+static struct led_classdev apu_led_2 = {
+	.name		= "apu:2",
+	.brightness_set	= apu_led_set_2,
+};
+
+static struct led_classdev apu_led_3 = {
+	.name		= "apu:3",
+	.brightness_set	= apu_led_set_3,
+};
+
+
+#ifdef CONFIG_PM
+static int apu_led_suspend(struct platform_device *dev,
+		pm_message_t state)
+{
+	led_classdev_suspend(&apu_led_1);
+	led_classdev_suspend(&apu_led_2);
+	led_classdev_suspend(&apu_led_3);
+	return 0;
+}
+
+static int apu_led_resume(struct platform_device *dev)
+{
+	led_classdev_resume(&apu_led_1);
+	led_classdev_resume(&apu_led_2);
+	led_classdev_resume(&apu_led_3);
+	return 0;
+}
+#else
+#define apu_led_suspend NULL
+#define apu_led_resume NULL
+#endif
+
+static int apu_led_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = led_classdev_register(&pdev->dev, &apu_led_1);
+	if (ret == 0)
+	{
+		ret = led_classdev_register(&pdev->dev, &apu_led_2);
+		if (ret >= 0)
+		{
+			ret = led_classdev_register(&pdev->dev, &apu_led_3);
+			if (ret < 0)
+				led_classdev_unregister(&apu_led_2);
+		}
+		if (ret < 0)
+			led_classdev_unregister(&apu_led_1);
+	}
+	return ret;
+}
+
+static int apu_led_remove(struct platform_device *pdev)
+{
+	led_classdev_unregister(&apu_led_1);
+	led_classdev_unregister(&apu_led_2);
+	led_classdev_unregister(&apu_led_3);
+	return 0;
+}
+
+static struct platform_driver apu_led_driver = {
+	.probe		= apu_led_probe,
+	.remove		= apu_led_remove,
+	.suspend	= apu_led_suspend,
+	.resume		= apu_led_resume,
+	.driver		= {
+	.name		= DRVNAME,
+	.owner		= THIS_MODULE,
+	},
+};
+
+static int __init apu_led_init(void)
+{
+	int ret=0;
+	const char *vendor, *product;
+
+	vendor = dmi_get_system_info(DMI_SYS_VENDOR);
+	if (!vendor || strcmp(vendor, "PC Engines"))
+		goto out;
+
+	product = dmi_get_system_info(DMI_PRODUCT_NAME);
+	if (!product || strcmp(product, "APU"))
+		goto out;
+
+	printk(KERN_INFO "%s: system is recognized as \"%s %s\"\n",
+	       KBUILD_MODNAME, vendor, product);
+
+	ret = platform_driver_register(&apu_led_driver);
+	if (ret < 0)
+		goto out;
+
+	pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
+	if (IS_ERR(pdev)) {
+		ret = PTR_ERR(pdev);
+		platform_driver_unregister(&apu_led_driver);
+		goto out;
+	}
+
+	apu_led_p1 = ioremap(BASEADDR, 1);
+	apu_led_p2 = ioremap(BASEADDR+1, 1);
+	apu_led_p3 = ioremap(BASEADDR+2, 1);
+
+out:
+	return ret;
+}
+
+static void __exit apu_led_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&apu_led_driver);
+}
+
+module_init(apu_led_init);
+module_exit(apu_led_exit);
+
+MODULE_AUTHOR("Christian Herzog");
+MODULE_DESCRIPTION("PCEngines apu LED driver");
+MODULE_LICENSE("GPL");
diff -Naur linux-4.14.101.org/arch/x86/platform/apu/Makefile linux-4.14.101/arch/x86/platform/apu/Makefile
--- linux-4.14.101.org/arch/x86/platform/apu/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-4.14.101/arch/x86/platform/apu/Makefile	2019-02-18 22:24:00.686721439 +0100
@@ -0,0 +1,2 @@
+obj-$(CONFIG_APULED)		+= apu-led.o
+obj-$(CONFIG_APU2LED)		+= apu2-led.o
diff -Naur linux-4.14.101.org/arch/x86/platform/Makefile linux-4.14.101/arch/x86/platform/Makefile
--- linux-4.14.101.org/arch/x86/platform/Makefile	2019-02-15 09:08:56.000000000 +0100
+++ linux-4.14.101/arch/x86/platform/Makefile	2019-02-18 22:24:00.686721439 +0100
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 # Platform specific code goes here
+obj-y	+= apu/
 obj-y	+= atom/
 obj-y	+= ce4100/
 obj-y	+= efi/