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Change-Id: Id4294f30faced84d3e6fd6d5e61e1111bf287a37
diff --git a/mcu/driver/devdrv/spmi/src/spmi_common.c b/mcu/driver/devdrv/spmi/src/spmi_common.c
new file mode 100644
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+++ b/mcu/driver/devdrv/spmi/src/spmi_common.c
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+/* Copyright Statement:
+ *
+ * This software/firmware and related documentation ("MediaTek Software") are
+ * protected under relevant copyright laws. The information contained herein is
+ * confidential and proprietary to MediaTek Inc. and/or its licensors. Without
+ * the prior written permission of MediaTek inc. and/or its licensors, any
+ * reproduction, modification, use or disclosure of MediaTek Software, and
+ * information contained herein, in whole or in part, shall be strictly
+ * prohibited.
+ *
+ * MediaTek Inc. (C) 2019. All rights reserved.
+ *
+ * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
+ * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
+ * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER
+ * ON AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL
+ * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
+ * NONINFRINGEMENT. NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH
+ * RESPECT TO THE SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY,
+ * INCORPORATED IN, OR SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES
+ * TO LOOK ONLY TO SUCH THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO.
+ * RECEIVER EXPRESSLY ACKNOWLEDGES THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO
+ * OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES CONTAINED IN MEDIATEK
+ * SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE
+ * RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
+ * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S
+ * ENTIRE AND CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE
+ * RELEASED HEREUNDER WILL BE, AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE
+ * MEDIATEK SOFTWARE AT ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE
+ * CHARGE PAID BY RECEIVER TO MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
+ *
+ * The following software/firmware and/or related documentation ("MediaTek
+ * Software") have been modified by MediaTek Inc. All revisions are subject to
+ * any receiver's applicable license agreements with MediaTek Inc.
+ */
+/*
+ * MTK SPMI Common Driver
+ *
+ * Copyright 2018 MediaTek Co.,Ltd.
+ *
+ * DESCRIPTION:
+ *     This file provides API for other drivers to access PMIC registers
+ *
+ */
+
+#include <pmif.h>
+#include <spmi.h>
+#include <pmif_sw.h>
+#include <spmi_sw.h>
+
+#if SPMI_NO_PMIC
+int spmi_ext_register_readl(struct spmi_device *dev, unsigned int addr,
+		unsigned char *buf, unsigned short len)
+{
+	SPMI_INFO("%s do Nothing.\n", __func__);
+	return 0;
+}
+int spmi_ext_register_writel(struct spmi_device *dev, unsigned int addr,
+		const unsigned char *buf, unsigned short len)
+{
+	SPMI_INFO("%s do Nothing.\n", __func__);
+	return 0;
+}
+#else /* #ifdef SPMI_NO_PMIC */
+int spmi_register_zero_write(struct spmi_device *dev, unsigned int addr,
+		unsigned char data)
+{
+	return dev->pmif_arb->write_cmd(dev->pmif_arb, SPMI_CMD_ZERO_WRITE,
+					dev->slvid, addr, &data, 1);
+}
+
+int spmi_register_read(struct spmi_device *dev, unsigned int addr,
+		unsigned char *buf)
+{
+	return dev->pmif_arb->read_cmd(dev->pmif_arb, SPMI_CMD_READ,
+					dev->slvid, addr, buf, 1);
+}
+
+int spmi_register_write(struct spmi_device *dev, unsigned int addr,
+		unsigned char data)
+{
+	return dev->pmif_arb->write_cmd(dev->pmif_arb, SPMI_CMD_WRITE,
+					dev->slvid, addr, &data, 1);
+}
+
+int spmi_ext_register_read(struct spmi_device *dev, unsigned int addr,
+		unsigned char *buf, unsigned short len)
+{
+	return dev->pmif_arb->read_cmd(dev->pmif_arb, SPMI_CMD_EXT_READ,
+					dev->slvid, addr, buf, len);
+}
+
+int spmi_ext_register_write(struct spmi_device *dev, unsigned int addr,
+		const unsigned char *buf, unsigned short len)
+{
+	return dev->pmif_arb->write_cmd(dev->pmif_arb, SPMI_CMD_EXT_WRITE,
+					dev->slvid, addr, buf, len);
+}
+
+int spmi_ext_register_readl(struct spmi_device *dev, unsigned int addr,
+		unsigned char *buf, unsigned short len)
+{
+	return dev->pmif_arb->read_cmd(dev->pmif_arb, SPMI_CMD_EXT_READL,
+					dev->slvid, addr, buf, len);
+}
+
+int spmi_ext_register_writel(struct spmi_device *dev, unsigned int addr,
+		const unsigned char *buf, unsigned short len)
+{
+	return dev->pmif_arb->write_cmd(dev->pmif_arb, SPMI_CMD_EXT_WRITEL,
+					dev->slvid, addr, buf, len);
+}
+
+int spmi_ext_register_readl_field(struct spmi_device *dev, unsigned int addr,
+	unsigned char *buf, unsigned short len,
+	unsigned short mask, unsigned short shift)
+{
+	unsigned int ret = 0;
+	unsigned char rdata = 0;
+
+	if (len > 1)
+		return -2;
+
+	ret = dev->pmif_arb->read_cmd(dev->pmif_arb, SPMI_CMD_EXT_READL,
+					dev->slvid, addr, &rdata, len);
+	if (ret != 0)
+		return ret;
+
+	*buf = (rdata >> shift) & mask;
+
+	return 0;
+}
+
+int spmi_ext_register_writel_field(struct spmi_device *dev, unsigned int addr,
+	const unsigned char *buf, unsigned short len,
+	unsigned short mask, unsigned short shift)
+{
+	unsigned char data = 0x0;
+	unsigned int ret = 0;
+
+	if (len > 1)
+		return -2;
+
+	ret = spmi_ext_register_readl(dev, addr, &data, 1);
+	if (ret != 0)
+		return ret;
+
+	data = data & ~(mask << shift);
+	data |= (*buf << shift);
+	return dev->pmif_arb->write_cmd(dev->pmif_arb, SPMI_CMD_EXT_WRITEL,
+					dev->slvid, addr, &data, len);
+}
+#endif /* endif SPMI_NO_PMIC */