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60a230e4a6
Some DMA controllers (eg: drivers/dma/dw_dmac*) allow platform specific configuration for dma transfers. User drivers need to set chan->private field of channel with pointer to configuration data. This patch takes dma_priv data from platform data and passes it to chan->private_data, in order to pass platform specific configuration to DMAC controller. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/*
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* include/linux/pata_arasan_cf_data.h
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*
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* Arasan Compact Flash host controller platform data header file
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*
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* Copyright (C) 2011 ST Microelectronics
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* Viresh Kumar <viresh.kumar@st.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef _PATA_ARASAN_CF_DATA_H
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#define _PATA_ARASAN_CF_DATA_H
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#include <linux/platform_device.h>
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struct arasan_cf_pdata {
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u8 cf_if_clk;
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#define CF_IF_CLK_100M (0x0)
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#define CF_IF_CLK_75M (0x1)
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#define CF_IF_CLK_66M (0x2)
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#define CF_IF_CLK_50M (0x3)
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#define CF_IF_CLK_40M (0x4)
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#define CF_IF_CLK_33M (0x5)
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#define CF_IF_CLK_25M (0x6)
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#define CF_IF_CLK_125M (0x7)
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#define CF_IF_CLK_150M (0x8)
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#define CF_IF_CLK_166M (0x9)
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#define CF_IF_CLK_200M (0xA)
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/*
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* Platform specific incapabilities of CF controller is handled via
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* quirks
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*/
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u32 quirk;
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#define CF_BROKEN_PIO (1)
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#define CF_BROKEN_MWDMA (1 << 1)
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#define CF_BROKEN_UDMA (1 << 2)
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/* This is platform specific data for the DMA controller */
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void *dma_priv;
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};
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static inline void
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set_arasan_cf_pdata(struct platform_device *pdev, struct arasan_cf_pdata *data)
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{
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pdev->dev.platform_data = data;
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}
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#endif /* _PATA_ARASAN_CF_DATA_H */
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