diff options
Diffstat (limited to 'sound/soc/samsung/idma.c')
| -rw-r--r-- | sound/soc/samsung/idma.c | 89 |
1 files changed, 44 insertions, 45 deletions
diff --git a/sound/soc/samsung/idma.c b/sound/soc/samsung/idma.c index 3e408158625d..402ccadad46c 100644 --- a/sound/soc/samsung/idma.c +++ b/sound/soc/samsung/idma.c @@ -1,16 +1,10 @@ -/* - * sound/soc/samsung/idma.c - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * I2S0's Internal DMA driver - * - * 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; either version 2 of the License, or (at your - * option) any later version. - */ +// SPDX-License-Identifier: GPL-2.0+ +// +// idma.c - I2S0 internal DMA driver +// +// Copyright (c) 2011 Samsung Electronics Co., Ltd. +// http://www.samsung.com + #include <linux/interrupt.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> @@ -143,8 +137,9 @@ static void idma_done(void *id, int bytes_xfer) snd_pcm_period_elapsed(substream); } -static int idma_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) +static int idma_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) { struct snd_pcm_runtime *runtime = substream->runtime; struct idma_ctrl *prtd = substream->runtime->private_data; @@ -169,14 +164,16 @@ static int idma_hw_params(struct snd_pcm_substream *substream, return 0; } -static int idma_hw_free(struct snd_pcm_substream *substream) +static int idma_hw_free(struct snd_soc_component *component, + struct snd_pcm_substream *substream) { snd_pcm_set_runtime_buffer(substream, NULL); return 0; } -static int idma_prepare(struct snd_pcm_substream *substream) +static int idma_prepare(struct snd_soc_component *component, + struct snd_pcm_substream *substream) { struct idma_ctrl *prtd = substream->runtime->private_data; @@ -189,7 +186,8 @@ static int idma_prepare(struct snd_pcm_substream *substream) return 0; } -static int idma_trigger(struct snd_pcm_substream *substream, int cmd) +static int idma_trigger(struct snd_soc_component *component, + struct snd_pcm_substream *substream, int cmd) { struct idma_ctrl *prtd = substream->runtime->private_data; int ret = 0; @@ -222,7 +220,8 @@ static int idma_trigger(struct snd_pcm_substream *substream, int cmd) } static snd_pcm_uframes_t - idma_pointer(struct snd_pcm_substream *substream) +idma_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct idma_ctrl *prtd = runtime->private_data; @@ -239,22 +238,20 @@ static snd_pcm_uframes_t return bytes_to_frames(substream->runtime, res); } -static int idma_mmap(struct snd_pcm_substream *substream, +static int idma_mmap(struct snd_soc_component *component, + struct snd_pcm_substream *substream, struct vm_area_struct *vma) { struct snd_pcm_runtime *runtime = substream->runtime; unsigned long size, offset; - int ret; /* From snd_pcm_lib_mmap_iomem */ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); size = vma->vm_end - vma->vm_start; offset = vma->vm_pgoff << PAGE_SHIFT; - ret = io_remap_pfn_range(vma, vma->vm_start, + return io_remap_pfn_range(vma, vma->vm_start, (runtime->dma_addr + offset) >> PAGE_SHIFT, size, vma->vm_page_prot); - - return ret; } static irqreturn_t iis_irq(int irqno, void *dev_id) @@ -284,7 +281,8 @@ static irqreturn_t iis_irq(int irqno, void *dev_id) return IRQ_HANDLED; } -static int idma_open(struct snd_pcm_substream *substream) +static int idma_open(struct snd_soc_component *component, + struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct idma_ctrl *prtd; @@ -310,7 +308,8 @@ static int idma_open(struct snd_pcm_substream *substream) return 0; } -static int idma_close(struct snd_pcm_substream *substream) +static int idma_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct idma_ctrl *prtd = runtime->private_data; @@ -325,19 +324,8 @@ static int idma_close(struct snd_pcm_substream *substream) return 0; } -static struct snd_pcm_ops idma_ops = { - .open = idma_open, - .close = idma_close, - .ioctl = snd_pcm_lib_ioctl, - .trigger = idma_trigger, - .pointer = idma_pointer, - .mmap = idma_mmap, - .hw_params = idma_hw_params, - .hw_free = idma_hw_free, - .prepare = idma_prepare, -}; - -static void idma_free(struct snd_pcm *pcm) +static void idma_free(struct snd_soc_component *component, + struct snd_pcm *pcm) { struct snd_pcm_substream *substream; struct snd_dma_buffer *buf; @@ -369,11 +357,14 @@ static int preallocate_idma_buffer(struct snd_pcm *pcm, int stream) buf->addr = idma.lp_tx_addr; buf->bytes = idma_hardware.buffer_bytes_max; buf->area = (unsigned char * __force)ioremap(buf->addr, buf->bytes); + if (!buf->area) + return -ENOMEM; return 0; } -static int idma_new(struct snd_soc_pcm_runtime *rtd) +static int idma_new(struct snd_soc_component *component, + struct snd_soc_pcm_runtime *rtd) { struct snd_card *card = rtd->card->snd_card; struct snd_pcm *pcm = rtd->pcm; @@ -399,10 +390,17 @@ void idma_reg_addr_init(void __iomem *regs, dma_addr_t addr) } EXPORT_SYMBOL_GPL(idma_reg_addr_init); -static struct snd_soc_platform_driver asoc_idma_platform = { - .ops = &idma_ops, - .pcm_new = idma_new, - .pcm_free = idma_free, +static const struct snd_soc_component_driver asoc_idma_platform = { + .open = idma_open, + .close = idma_close, + .trigger = idma_trigger, + .pointer = idma_pointer, + .mmap = idma_mmap, + .hw_params = idma_hw_params, + .hw_free = idma_hw_free, + .prepare = idma_prepare, + .pcm_construct = idma_new, + .pcm_destruct = idma_free, }; static int asoc_idma_platform_probe(struct platform_device *pdev) @@ -411,7 +409,8 @@ static int asoc_idma_platform_probe(struct platform_device *pdev) if (idma_irq < 0) return idma_irq; - return devm_snd_soc_register_platform(&pdev->dev, &asoc_idma_platform); + return devm_snd_soc_register_component(&pdev->dev, &asoc_idma_platform, + NULL, 0); } static struct platform_driver asoc_idma_driver = { |