forked from Minki/linux
4bd04e2ed4
'psize' is used to calculate the maximum DMA burst size. However it is only taken into consideration when editing the DMA channel's configuration. The Audio DMA platform data is only used to allocate a channel, not configure it. That will be done at a later date within the MSP driver. We're also removing comments which are no longer required, as 'data_width' is no longer set in any device's platform data period. Tested-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
133 lines
3.3 KiB
C
133 lines
3.3 KiB
C
/*
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* Copyright (C) ST-Ericsson SA 2010
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*
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* License terms: GNU General Public License (GPL), version 2
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*/
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#include <linux/platform_device.h>
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#include <linux/init.h>
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#include <linux/gpio.h>
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#include <linux/platform_data/pinctrl-nomadik.h>
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#include <linux/platform_data/dma-ste-dma40.h>
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#include "devices.h"
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#include "irqs.h"
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#include <linux/platform_data/asoc-ux500-msp.h>
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#include "ste-dma40-db8500.h"
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#include "board-mop500.h"
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#include "devices-db8500.h"
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#include "pins-db8500.h"
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static struct stedma40_chan_cfg msp0_dma_rx = {
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.high_priority = true,
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.dir = STEDMA40_PERIPH_TO_MEM,
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.dev_type = DB8500_DMA_DEV31_MSP0_SLIM0_CH0,
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};
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static struct stedma40_chan_cfg msp0_dma_tx = {
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.high_priority = true,
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.dir = STEDMA40_MEM_TO_PERIPH,
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.dev_type = DB8500_DMA_DEV31_MSP0_SLIM0_CH0,
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};
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struct msp_i2s_platform_data msp0_platform_data = {
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.id = MSP_I2S_0,
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.msp_i2s_dma_rx = &msp0_dma_rx,
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.msp_i2s_dma_tx = &msp0_dma_tx,
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};
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static struct stedma40_chan_cfg msp1_dma_rx = {
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.high_priority = true,
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.dir = STEDMA40_PERIPH_TO_MEM,
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.dev_type = DB8500_DMA_DEV30_MSP3,
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};
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static struct stedma40_chan_cfg msp1_dma_tx = {
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.high_priority = true,
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.dir = STEDMA40_MEM_TO_PERIPH,
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.dev_type = DB8500_DMA_DEV30_MSP1,
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};
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struct msp_i2s_platform_data msp1_platform_data = {
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.id = MSP_I2S_1,
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.msp_i2s_dma_rx = NULL,
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.msp_i2s_dma_tx = &msp1_dma_tx,
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};
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static struct stedma40_chan_cfg msp2_dma_rx = {
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.high_priority = true,
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.dir = STEDMA40_PERIPH_TO_MEM,
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.dev_type = DB8500_DMA_DEV14_MSP2,
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};
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static struct stedma40_chan_cfg msp2_dma_tx = {
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.high_priority = true,
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.dir = STEDMA40_MEM_TO_PERIPH,
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.dev_type = DB8500_DMA_DEV14_MSP2,
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.use_fixed_channel = true,
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.phy_channel = 1,
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};
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static struct platform_device *db8500_add_msp_i2s(struct device *parent,
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int id,
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resource_size_t base, int irq,
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struct msp_i2s_platform_data *pdata)
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{
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struct platform_device *pdev;
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struct resource res[] = {
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DEFINE_RES_MEM(base, SZ_4K),
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DEFINE_RES_IRQ(irq),
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};
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pr_info("Register platform-device 'ux500-msp-i2s', id %d, irq %d\n",
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id, irq);
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pdev = platform_device_register_resndata(parent, "ux500-msp-i2s", id,
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res, ARRAY_SIZE(res),
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pdata, sizeof(*pdata));
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if (!pdev) {
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pr_err("Failed to register platform-device 'ux500-msp-i2s.%d'!\n",
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id);
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return NULL;
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}
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return pdev;
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}
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/* Platform device for ASoC MOP500 machine */
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static struct platform_device snd_soc_mop500 = {
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.name = "snd-soc-mop500",
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.id = 0,
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.dev = {
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.platform_data = NULL,
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},
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};
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struct msp_i2s_platform_data msp2_platform_data = {
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.id = MSP_I2S_2,
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.msp_i2s_dma_rx = &msp2_dma_rx,
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.msp_i2s_dma_tx = &msp2_dma_tx,
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};
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struct msp_i2s_platform_data msp3_platform_data = {
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.id = MSP_I2S_3,
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.msp_i2s_dma_rx = &msp1_dma_rx,
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.msp_i2s_dma_tx = NULL,
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};
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void mop500_audio_init(struct device *parent)
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{
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pr_info("%s: Register platform-device 'snd-soc-mop500'.\n", __func__);
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platform_device_register(&snd_soc_mop500);
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pr_info("Initialize MSP I2S-devices.\n");
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db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
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&msp0_platform_data);
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db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
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&msp1_platform_data);
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db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
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&msp2_platform_data);
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db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
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&msp3_platform_data);
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}
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