cregit-Linux how code gets into the kernel

Release 4.12 include/linux/platform_data/dma-s3c24xx.h

/*
 * S3C24XX DMA handling
 *
 * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
 *
 * 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.
 */

/* Helper to encode the source selection constraints for early s3c socs. */

#define S3C24XX_DMA_CHANREQ(src, chan)	((BIT(3) | src) << chan * 4)


enum s3c24xx_dma_bus {
	
S3C24XX_DMA_APB,
	
S3C24XX_DMA_AHB,
};

/**
 * @bus: on which bus does the peripheral reside - AHB or APB.
 * @handshake: is a handshake with the peripheral necessary
 * @chansel: channel selection information, depending on variant; reqsel for
 *           s3c2443 and later and channel-selection map for earlier SoCs
 *           see CHANSEL doc in s3c2443-dma.c
 */

struct s3c24xx_dma_channel {
	
enum s3c24xx_dma_bus bus;
	
bool handshake;
	
u16 chansel;
};

struct dma_slave_map;

/**
 * struct s3c24xx_dma_platdata - platform specific settings
 * @num_phy_channels: number of physical channels
 * @channels: array of virtual channel descriptions
 * @num_channels: number of virtual channels
 * @slave_map: dma slave map matching table
 * @slavecnt: number of elements in slave_map
 */

struct s3c24xx_dma_platdata {
	
int num_phy_channels;
	
struct s3c24xx_dma_channel *channels;
	
int num_channels;
	
const struct dma_slave_map *slave_map;
	
int slavecnt;
};

struct dma_chan;
bool s3c24xx_dma_filter(struct dma_chan *chan, void *param);

Overall Contributors

PersonTokensPropCommitsCommitProp
Heiko Stübner6783.75%266.67%
Sam Van Den Berge1316.25%133.33%
Total80100.00%3100.00%
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