arch/arm/mach-ux500/board-mop500-audio.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * License terms: GNU General Public License (GPL), version 2
   5  */
   6
   7 #include <linux/platform_device.h>
   8 #include <linux/init.h>
   9 #include <linux/gpio.h>
  10 #include <linux/platform_data/pinctrl-nomadik.h>
  11 #include <linux/platform_data/dma-ste-dma40.h>
  12
  13 #include "devices.h"
  14 #include "irqs.h"
  15 #include <linux/platform_data/asoc-ux500-msp.h>
  16
  17 #include "ste-dma40-db8500.h"
  18 #include "board-mop500.h"
  19 #include "devices-db8500.h"
  20
  21 static struct stedma40_chan_cfg msp0_dma_rx = {
  22         .high_priority = true,
  23         .dir = DMA_DEV_TO_MEM,
  24         .dev_type = DB8500_DMA_DEV31_MSP0_SLIM0_CH0,
  25 };
  26
  27 static struct stedma40_chan_cfg msp0_dma_tx = {
  28         .high_priority = true,
  29         .dir = DMA_MEM_TO_DEV,
  30         .dev_type = DB8500_DMA_DEV31_MSP0_SLIM0_CH0,
  31 };
  32
  33 struct msp_i2s_platform_data msp0_platform_data = {
  34         .id = MSP_I2S_0,
  35         .msp_i2s_dma_rx = &msp0_dma_rx,
  36         .msp_i2s_dma_tx = &msp0_dma_tx,
  37 };
  38
  39 static struct stedma40_chan_cfg msp1_dma_rx = {
  40         .high_priority = true,
  41         .dir = DMA_DEV_TO_MEM,
  42         .dev_type = DB8500_DMA_DEV30_MSP3,
  43 };
  44
  45 static struct stedma40_chan_cfg msp1_dma_tx = {
  46         .high_priority = true,
  47         .dir = DMA_MEM_TO_DEV,
  48         .dev_type = DB8500_DMA_DEV30_MSP1,
  49 };
  50
  51 struct msp_i2s_platform_data msp1_platform_data = {
  52         .id = MSP_I2S_1,
  53         .msp_i2s_dma_rx = NULL,
  54         .msp_i2s_dma_tx = &msp1_dma_tx,
  55 };
  56
  57 static struct stedma40_chan_cfg msp2_dma_rx = {
  58         .high_priority = true,
  59         .dir = DMA_DEV_TO_MEM,
  60         .dev_type = DB8500_DMA_DEV14_MSP2,
  61 };
  62
  63 static struct stedma40_chan_cfg msp2_dma_tx = {
  64         .high_priority = true,
  65         .dir = DMA_MEM_TO_DEV,
  66         .dev_type = DB8500_DMA_DEV14_MSP2,
  67         .use_fixed_channel = true,
  68         .phy_channel = 1,
  69 };
  70
  71 static struct platform_device *db8500_add_msp_i2s(struct device *parent,
  72                         int id,
  73                         resource_size_t base, int irq,
  74                         struct msp_i2s_platform_data *pdata)
  75 {
  76         struct platform_device *pdev;
  77         struct resource res[] = {
  78                 DEFINE_RES_MEM(base, SZ_4K),
  79                 DEFINE_RES_IRQ(irq),
  80         };
  81
  82         pr_info("Register platform-device 'ux500-msp-i2s', id %d, irq %d\n",
  83                 id, irq);
  84         pdev = platform_device_register_resndata(parent, "ux500-msp-i2s", id,
  85                                                 res, ARRAY_SIZE(res),
  86                                                 pdata, sizeof(*pdata));
  87         if (!pdev) {
  88                 pr_err("Failed to register platform-device 'ux500-msp-i2s.%d'!\n",
  89                         id);
  90                 return NULL;
  91         }
  92
  93         return pdev;
  94 }
  95
  96 /* Platform device for ASoC MOP500 machine */
  97 static struct platform_device snd_soc_mop500 = {
  98         .name = "snd-soc-mop500",
  99         .id = 0,
 100         .dev = {
 101                 .platform_data = NULL,
 102         },
 103 };
 104
 105 struct msp_i2s_platform_data msp2_platform_data = {
 106         .id = MSP_I2S_2,
 107         .msp_i2s_dma_rx = &msp2_dma_rx,
 108         .msp_i2s_dma_tx = &msp2_dma_tx,
 109 };
 110
 111 struct msp_i2s_platform_data msp3_platform_data = {
 112         .id             = MSP_I2S_3,
 113         .msp_i2s_dma_rx = &msp1_dma_rx,
 114         .msp_i2s_dma_tx = NULL,
 115 };
 116
 117 void mop500_audio_init(struct device *parent)
 118 {
 119         pr_info("%s: Register platform-device 'snd-soc-mop500'.\n", __func__);
 120         platform_device_register(&snd_soc_mop500);
 121
 122         pr_info("Initialize MSP I2S-devices.\n");
 123         db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
 124                            &msp0_platform_data);
 125         db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
 126                            &msp1_platform_data);
 127         db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
 128                            &msp2_platform_data);
 129         db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
 130                            &msp3_platform_data);
 131 }