adc: port cloverview adc driver

port K3.4 adc driver of cloverview platform to K3.10

Signed-off-by: Wang Yiyang <yiyang.wang@intel.com>

Author: wangyiyanga

arch/x86/include/asm/intel-mid.h

@@ -28,6 +28,7 @@ static inline int get_gpio_by_name(const char *name) { return -1; }
 extern int intel_mid_pci_init(void);
 extern void intel_delayed_device_register(void *dev,
 			void (*delayed_callback)(void *dev_desc));
+extern void install_irq_resource(struct platform_device *pdev, int irq);
 extern void intel_scu_device_register(struct platform_device *pdev);
 extern struct devs_id *get_device_id(u8 type, char *name);
 extern int __init sfi_parse_mrtc(struct sfi_table_header *table);

arch/x86/include/asm/intel_mid_gpadc.h

@@ -0,0 +1,19 @@
+#ifndef __INTEL_MID_GPADC_H__
+#define __INTEL_MID_GPADC_H__
+
+struct intel_mid_gpadc_platform_data {
+	unsigned long intr;
+};
+
+#define CH_NEED_VREF		(1 << 8)
+#define CH_NEED_VCALIB		(1 << 9)
+#define CH_NEED_ICALIB		(1 << 10)
+
+int intel_mid_gpadc_gsmpulse_sample(int *vol, int *cur);
+int intel_mid_gpadc_sample(void *handle, int sample_count, ...);
+int get_gpadc_sample(void *handle, int sample_count, int *buffer);
+void intel_mid_gpadc_free(void *handle);
+void *intel_mid_gpadc_alloc(int count, ...);
+void *gpadc_alloc_channels(int count, int *channel_info);
+#endif
+

arch/x86/platform/intel-mid/device_libs/platform_msic_adc.c

@@ -0,0 +1,56 @@
+/*
+ * platform_msic_adc.c: MSIC ADC platform data initilization file
+ *
+ * (C) Copyright 2008 Intel Corporation
+ * Author:
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_gpadc.h>
+#include <asm/intel_mid_remoteproc.h>
+#include "platform_msic.h"
+#include "platform_msic_adc.h"
+
+void __init *msic_adc_platform_data(void *info)
+{
+	struct platform_device *pdev = NULL;
+	struct sfi_device_table_entry *entry = info;
+	static struct intel_mid_gpadc_platform_data msic_adc_pdata;
+	int ret = 0;
+
+	pdev = platform_device_alloc(ADC_DEVICE_NAME, -1);
+
+	if (!pdev) {
+		pr_err("out of memory for SFI platform dev %s\n",
+					ADC_DEVICE_NAME);
+		goto out;
+	}
+
+	msic_adc_pdata.intr = 0xffff7fc0;
+
+	pdev->dev.platform_data = &msic_adc_pdata;
+
+	ret = platform_device_add(pdev);
+	if (ret) {
+		pr_err("failed to add adc platform device\n");
+		platform_device_put(pdev);
+		goto out;
+	}
+
+	install_irq_resource(pdev, entry->irq);
+
+	register_rpmsg_service("rpmsg_msic_adc", RPROC_SCU,
+				RP_MSIC_ADC);
+out:
+	return &msic_adc_pdata;
+}

arch/x86/platform/intel-mid/device_libs/platform_msic_adc.h

@@ -0,0 +1,18 @@
+/*
+ * platform_msic_adc.h: MSIC ADC platform data header file
+ *
+ * (C) Copyright 2008 Intel Corporation
+ * Author:
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MSIC_ADC_H_
+#define _PLATFORM_MSIC_ADC_H_
+
+#define ADC_DEVICE_NAME "msic_adc"
+
+extern void __init *msic_adc_platform_data(void *info) __attribute__((weak));
+#endif

arch/x86/platform/intel-mid/intel_mid_sfi.c

@@ -317,7 +317,7 @@ void intel_scu_devices_destroy(void)
 }
 EXPORT_SYMBOL_GPL(intel_scu_devices_destroy);
 
-static void __init install_irq_resource(struct platform_device *pdev, int irq)
+void __init install_irq_resource(struct platform_device *pdev, int irq)
 {
 	/* Single threaded */
 	static struct resource __initdata res = {

drivers/hwmon/Kconfig

@@ -822,6 +822,12 @@ config SENSORS_LM95245
 	  This driver can also be built as a module.  If so, the module
 	  will be called lm95245.
 
+config MSIC_GPADC
+	tristate "MSIC GPADC driver for Intel Medfield platform"
+	depends on INTEL_SCU_IPC
+	help
+	  Say Y here to enable MSIC GPADC driver on Intel Medfield Platform
+
 config SENSORS_MAX1111
 	tristate "Maxim MAX1111 Serial 8-bit ADC chip and compatibles"
 	depends on SPI_MASTER

drivers/hwmon/Makefile

@@ -140,6 +140,7 @@ obj-$(CONFIG_SENSORS_W83L785TS)	+= w83l785ts.o
 obj-$(CONFIG_SENSORS_W83L786NG)	+= w83l786ng.o
 obj-$(CONFIG_SENSORS_WM831X)	+= wm831x-hwmon.o
 obj-$(CONFIG_SENSORS_WM8350)	+= wm8350-hwmon.o
+obj-$(CONFIG_MSIC_GPADC)        += intel_mid_gpadc.o
 
 obj-$(CONFIG_PMBUS)		+= pmbus/