292 lines
7 KiB
C
292 lines
7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 MediaTek Inc.
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* Author: Michael Hsiao <michael.hsiao@mediatek.com>
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*/
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/*****************************************************************************
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*
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* Filename:
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* ---------
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* mtk-auddrv-afe.c
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*
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* Project:
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* --------
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* MT6797 Audio Driver Afe Register setting
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*
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* Description:
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* ------------
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* Audio register
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*
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* Author:
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* -------
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* Chipeng Chang
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*
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*----------------------------------------------------------------------------
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*
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*
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*****************************************************************************
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*/
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/*****************************************************************************
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* C O M P I L E R F L A G S
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*****************************************************************************/
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/*****************************************************************************
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* E X T E R N A L R E F E R E N C E S
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*****************************************************************************/
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#include "mtk-auddrv-common.h"
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#include <linux/device.h>
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#include <linux/regmap.h>
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#include <linux/types.h>
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#ifdef CONFIG_OF
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#endif
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/*****************************************************************************
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* D A T A T Y P E S
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*****************************************************************************/
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/*****************************************************************************
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* FUNCTION IMPLEMENTATION
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*****************************************************************************/
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/*****************************************************************************
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* FUNCTION
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* Auddrv_Reg_map
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*
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* DESCRIPTION
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* Auddrv_Reg_map
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*
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*****************************************************************************
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*/
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/*
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* global variable control
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*/
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#ifndef CONFIG_FPGA_EARLY_PORTING
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static DEFINE_SPINLOCK(clksys_set_reg_lock);
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#endif
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static const unsigned int SramCaptureOffSet = (16 * 1024);
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static const struct regmap_config mtk_afe_regmap_config = {
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.reg_bits = 32,
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.reg_stride = 4,
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.val_bits = 32,
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.max_register = AFE_MAXLENGTH,
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.cache_type = REGCACHE_NONE,
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.fast_io = true,
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};
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/* address for ioremap audio hardware register */
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void *AFE_BASE_ADDRESS;
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void *AFE_SRAM_ADDRESS;
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void *AFE_TOP_ADDRESS;
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void *APMIXEDSYS_ADDRESS;
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void *CLKSYS_ADDRESS;
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struct regmap *pregmap;
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int Auddrv_Reg_map(struct device *pdev)
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{
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int ret = 0;
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#ifdef CONFIG_OF
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struct device_node *audio_sram_node = NULL;
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audio_sram_node =
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of_find_compatible_node(NULL, NULL, "mediatek,audio_sram");
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pr_debug("%s\n", __func__);
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if (!pdev->of_node)
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pr_warn("%s invalid of_node\n", __func__);
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if (audio_sram_node == NULL)
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pr_warn("%s invalid audio_sram_node\n", __func__);
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/* mapping AFE reg*/
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AFE_BASE_ADDRESS = of_iomap(pdev->of_node, 0);
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if (AFE_BASE_ADDRESS == NULL) {
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pr_err("AFE_BASE_ADDRESS=0x%p\n", AFE_BASE_ADDRESS);
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return -ENODEV;
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}
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AFE_SRAM_ADDRESS = of_iomap(audio_sram_node, 0);
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if (AFE_SRAM_ADDRESS == NULL) {
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pr_err("AFE_SRAM_ADDRESS=0x%p\n", AFE_SRAM_ADDRESS);
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return -ENODEV;
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}
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pregmap = devm_regmap_init_mmio(pdev, AFE_BASE_ADDRESS,
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&mtk_afe_regmap_config);
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if (IS_ERR(pregmap)) {
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pr_err("devm_regmap_init_mmio error\n");
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return -ENODEV;
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}
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#else
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AFE_BASE_ADDRESS = ioremap_nocache(AUDIO_HW_PHYSICAL_BASE, 0x1000);
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AFE_SRAM_ADDRESS = ioremap_nocache(AFE_INTERNAL_SRAM_PHY_BASE,
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AFE_INTERNAL_SRAM_SIZE);
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#endif
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/* temp for hardawre code set 0x1000629c = 0xd */
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AFE_TOP_ADDRESS = ioremap_nocache(AUDIO_POWER_TOP, 0x1000);
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APMIXEDSYS_ADDRESS = ioremap_nocache(APMIXEDSYS_BASE, 0x1000);
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CLKSYS_ADDRESS = ioremap_nocache(AUDIO_CLKCFG_PHYSICAL_BASE, 0x1000);
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return ret;
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}
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unsigned int Get_Afe_Sram_Length(void)
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{
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return AFE_INTERNAL_SRAM_SIZE;
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}
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dma_addr_t Get_Afe_Sram_Phys_Addr(void)
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{
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return (dma_addr_t)AFE_INTERNAL_SRAM_PHY_BASE;
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}
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dma_addr_t Get_Afe_Sram_Capture_Phys_Addr(void)
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{
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return (dma_addr_t)(AFE_INTERNAL_SRAM_PHY_BASE + SramCaptureOffSet);
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}
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void *Get_Afe_SramBase_Pointer()
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{
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return AFE_SRAM_ADDRESS;
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}
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void *Get_Afe_SramCaptureBase_Pointer()
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{
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char *CaptureSramPointer =
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(char *)(AFE_SRAM_ADDRESS) + SramCaptureOffSet;
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return (void *)CaptureSramPointer;
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}
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void *Get_Afe_Powertop_Pointer()
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{
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return AFE_TOP_ADDRESS;
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}
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/* function to access apmixed sys */
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unsigned int GetApmixedCfg(unsigned int offset)
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{
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long address = (long)((char *)APMIXEDSYS_ADDRESS + offset);
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unsigned int *value;
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value = (unsigned int *)(address);
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return *value;
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}
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void SetApmixedCfg(unsigned int offset, unsigned int value, unsigned int mask)
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{
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long address = (long)((char *)APMIXEDSYS_ADDRESS + offset);
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unsigned int *AFE_Register = (unsigned int *)address;
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unsigned int val_tmp;
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val_tmp = GetApmixedCfg(offset);
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val_tmp &= (~mask);
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val_tmp |= (value & mask);
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#ifdef _REG_SYNC_WRITE
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mt_reg_sync_writel(val_tmp, AFE_Register);
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#else
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AFE_Register++;
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#endif
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}
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/* function to access clksys */
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unsigned int clksys_get_reg(unsigned int offset)
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{
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#ifndef CONFIG_FPGA_EARLY_PORTING
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long address = (long)((char *)CLKSYS_ADDRESS + offset);
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unsigned int *value;
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if (CLKSYS_ADDRESS == NULL) {
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pr_warn("%s(), CLKSYS_ADDRESS is null\n", __func__);
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return 0;
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}
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value = (unsigned int *)(address);
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#if defined(AUD_DEBUG_LOG)
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pr_debug("%s(), offset = %x, address = %lx, value = 0x%x\n", __func__,
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offset, address, *value);
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#endif
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return *value;
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#else
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return 0;
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#endif
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}
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void clksys_set_reg(unsigned int offset, unsigned int value, unsigned int mask)
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{
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#ifndef CONFIG_FPGA_EARLY_PORTING
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long address = (long)((char *)CLKSYS_ADDRESS + offset);
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unsigned int *val_addr = (unsigned int *)address;
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unsigned int val_tmp;
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unsigned long flags = 0;
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if (CLKSYS_ADDRESS == NULL) {
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pr_warn("%s(), CLKSYS_ADDRESS is null\n", __func__);
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return;
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}
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#if defined(AUD_DEBUG_LOG)
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pr_debug("%s(), offset = %x, value = %x, mask = %x\n", __func__, offset,
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value, mask);
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#endif
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spin_lock_irqsave(&clksys_set_reg_lock, flags);
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val_tmp = clksys_get_reg(offset);
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val_tmp &= (~mask);
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val_tmp |= (value & mask);
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#ifdef _REG_SYNC_WRITE
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mt_reg_sync_writel(val_tmp, val_addr);
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#else
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val_addr++;
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#endif
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spin_unlock_irqrestore(&clksys_set_reg_lock, flags);
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#endif
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}
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void Afe_Set_Reg_Val(unsigned int offset, unsigned int value)
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{
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int ret = 0;
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ret = regmap_write(pregmap, offset, value);
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if (ret) {
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pr_debug("%s(), ret = %d, offset = 0x%x, value = 0x%x\n",
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__func__, ret, offset, value);
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}
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}
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EXPORT_SYMBOL(Afe_Set_Reg_Val);
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void Afe_Set_Reg(unsigned int offset, unsigned int value, unsigned int mask)
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{
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int ret = 0;
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ret = regmap_update_bits(pregmap, offset, mask, value);
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if (ret) {
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pr_warn("%s ret = %d offset = 0x%x value = 0x%x mask = 0x%x\n",
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__func__, ret, offset, value, mask);
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}
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}
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EXPORT_SYMBOL(Afe_Set_Reg);
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unsigned int Afe_Get_Reg(unsigned int offset)
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{
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unsigned int value = 0;
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int ret;
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ret = regmap_read(pregmap, offset, &value);
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if (ret)
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pr_warn("%s ret = %d value = 0x%x mask = 0x%x\n", __func__, ret,
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offset, value);
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return value;
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}
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EXPORT_SYMBOL(Afe_Get_Reg);
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