1 // SPDX-License-Identifier: GPL-2.0
3  * arch/sh/drivers/dma/dma-sysfs.c
5  * sysfs interface for SH DMA API
7  * Copyright (C) 2004 - 2006  Paul Mundt
16 #include <asm/dma.h>
19 	.name = "dma",
20 	.dev_name = "dma",
30 		struct dma_info *info = get_dma_info(i);  in dma_show_devices()  local
33 		if (unlikely(!info) || !channel)  in dma_show_devices()
37 			       channel->chan, info->name,  in dma_show_devices()
38 			       channel->dev_id);  in dma_show_devices()
68 	return sprintf(buf, "%s\n", channel->dev_id);  in dma_show_dev_id()
76 	strcpy(channel->dev_id, buf);  in dma_store_dev_id()
90 	dma_configure_channel(channel->vchan, config);  in dma_store_config()
101 	return sprintf(buf, "0x%08x\n", channel->mode);  in dma_show_mode()
109 	channel->mode = simple_strtoul(buf, NULL, 0);  in dma_store_mode()
120 	return sprintf(buf, fmt, channel->field);			\
127 int dma_create_sysfs_files(struct dma_channel *chan, struct dma_info *info)  in dma_create_sysfs_files()  argument
129 	struct device *dev = &chan->dev;  in dma_create_sysfs_files()
133 	dev->id  = chan->vchan;  in dma_create_sysfs_files()
134 	dev->bus = &dma_subsys;  in dma_create_sysfs_files()
147 		dev_err(&info->pdev->dev, "Failed creating attrs\n");  in dma_create_sysfs_files()
151 	snprintf(name, sizeof(name), "dma%d", chan->chan);  in dma_create_sysfs_files()
152 	return sysfs_create_link(&info->pdev->dev.kobj, &dev->kobj, name);  in dma_create_sysfs_files()
155 void dma_remove_sysfs_files(struct dma_channel *chan, struct dma_info *info)  in dma_remove_sysfs_files()  argument
157 	struct device *dev = &chan->dev;  in dma_remove_sysfs_files()
166 	snprintf(name, sizeof(name), "dma%d", chan->chan);  in dma_remove_sysfs_files()
167 	sysfs_remove_link(&info->pdev->dev.kobj, name);  in dma_remove_sysfs_files()