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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-22 17:53:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-22 17:53:13 -0700
commit6447f55da90b77faec1697d499ed7986bb4f6de6 (patch)
tree2d360d48121bdaa354d1ef19fed48467d08dfb1f /arch
parentc50e3f512a5a15a73acd94e6ec8ed63cd512e04f (diff)
parent3ea205c449d2b5996d0256aa8b2894f7aea228a2 (diff)
downloadblackbird-op-linux-6447f55da90b77faec1697d499ed7986bb4f6de6.tar.gz
blackbird-op-linux-6447f55da90b77faec1697d499ed7986bb4f6de6.zip
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (66 commits) avr32: at32ap700x: fix typo in DMA master configuration dmaengine/dmatest: Pass timeout via module params dma: let IMX_DMA depend on IMX_HAVE_DMA_V1 instead of an explicit list of SoCs fsldma: make halt behave nicely on all supported controllers fsldma: reduce locking during descriptor cleanup fsldma: support async_tx dependencies and automatic unmapping fsldma: fix controller lockups fsldma: minor codingstyle and consistency fixes fsldma: improve link descriptor debugging fsldma: use channel name in printk output fsldma: move related helper functions near each other dmatest: fix automatic buffer unmap type drivers, pch_dma: Fix warning when CONFIG_PM=n. dmaengine/dw_dmac fix: use readl & writel instead of __raw_readl & __raw_writel avr32: at32ap700x: Specify DMA Flow Controller, Src and Dst msize dw_dmac: Setting Default Burst length for transfers as 16. dw_dmac: Allow src/dst msize & flow controller to be configured at runtime dw_dmac: Changing type of src_master and dest_master to u8. dw_dmac: Pass Channel Priority from platform_data dw_dmac: Pass Channel Allocation Order from platform_data ...
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-mxs/include/mach/dma.h26
-rw-r--r--arch/arm/plat-nomadik/include/plat/ste_dma40.h22
-rw-r--r--arch/avr32/mach-at32ap/at32ap700x.c15
3 files changed, 44 insertions, 19 deletions
diff --git a/arch/arm/mach-mxs/include/mach/dma.h b/arch/arm/mach-mxs/include/mach/dma.h
new file mode 100644
index 000000000000..7f4aeeaba8df
--- /dev/null
+++ b/arch/arm/mach-mxs/include/mach/dma.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __MACH_MXS_DMA_H__
+#define __MACH_MXS_DMA_H__
+
+struct mxs_dma_data {
+ int chan_irq;
+};
+
+static inline int mxs_dma_is_apbh(struct dma_chan *chan)
+{
+ return !strcmp(dev_name(chan->device->dev), "mxs-dma-apbh");
+}
+
+static inline int mxs_dma_is_apbx(struct dma_chan *chan)
+{
+ return !strcmp(dev_name(chan->device->dev), "mxs-dma-apbx");
+}
+
+#endif /* __MACH_MXS_DMA_H__ */
diff --git a/arch/arm/plat-nomadik/include/plat/ste_dma40.h b/arch/arm/plat-nomadik/include/plat/ste_dma40.h
index 4d6dd4c39b75..c44886062f8e 100644
--- a/arch/arm/plat-nomadik/include/plat/ste_dma40.h
+++ b/arch/arm/plat-nomadik/include/plat/ste_dma40.h
@@ -104,6 +104,8 @@ struct stedma40_half_channel_info {
*
* @dir: MEM 2 MEM, PERIPH 2 MEM , MEM 2 PERIPH, PERIPH 2 PERIPH
* @high_priority: true if high-priority
+ * @realtime: true if realtime mode is to be enabled. Only available on DMA40
+ * version 3+, i.e DB8500v2+
* @mode: channel mode: physical, logical, or operation
* @mode_opt: options for the chosen channel mode
* @src_dev_type: Src device type
@@ -119,6 +121,7 @@ struct stedma40_half_channel_info {
struct stedma40_chan_cfg {
enum stedma40_xfer_dir dir;
bool high_priority;
+ bool realtime;
enum stedma40_mode mode;
enum stedma40_mode_opt mode_opt;
int src_dev_type;
@@ -169,25 +172,6 @@ struct stedma40_platform_data {
bool stedma40_filter(struct dma_chan *chan, void *data);
/**
- * stedma40_memcpy_sg() - extension of the dma framework, memcpy to/from
- * scattergatter lists.
- *
- * @chan: dmaengine handle
- * @sgl_dst: Destination scatter list
- * @sgl_src: Source scatter list
- * @sgl_len: The length of each scatterlist. Both lists must be of equal length
- * and each element must match the corresponding element in the other scatter
- * list.
- * @flags: is actually enum dma_ctrl_flags. See dmaengine.h
- */
-
-struct dma_async_tx_descriptor *stedma40_memcpy_sg(struct dma_chan *chan,
- struct scatterlist *sgl_dst,
- struct scatterlist *sgl_src,
- unsigned int sgl_len,
- unsigned long flags);
-
-/**
* stedma40_slave_mem() - Transfers a raw data buffer to or from a slave
* (=device)
*
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index e67c99945428..bfc9d071db9b 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -2048,6 +2048,11 @@ at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data,
rx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT;
rx_dws->cfg_hi = DWC_CFGH_SRC_PER(3);
rx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
+ rx_dws->src_master = 0;
+ rx_dws->dst_master = 1;
+ rx_dws->src_msize = DW_DMA_MSIZE_1;
+ rx_dws->dst_msize = DW_DMA_MSIZE_1;
+ rx_dws->fc = DW_DMA_FC_D_P2M;
}
/* Check if DMA slave interface for playback should be configured. */
@@ -2056,6 +2061,11 @@ at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data,
tx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT;
tx_dws->cfg_hi = DWC_CFGH_DST_PER(4);
tx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
+ tx_dws->src_master = 0;
+ tx_dws->dst_master = 1;
+ tx_dws->src_msize = DW_DMA_MSIZE_1;
+ tx_dws->dst_msize = DW_DMA_MSIZE_1;
+ tx_dws->fc = DW_DMA_FC_D_M2P;
}
if (platform_device_add_data(pdev, data,
@@ -2128,6 +2138,11 @@ at32_add_device_abdac(unsigned int id, struct atmel_abdac_pdata *data)
dws->reg_width = DW_DMA_SLAVE_WIDTH_32BIT;
dws->cfg_hi = DWC_CFGH_DST_PER(2);
dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
+ dws->src_master = 0;
+ dws->dst_master = 1;
+ dws->src_msize = DW_DMA_MSIZE_1;
+ dws->dst_msize = DW_DMA_MSIZE_1;
+ dws->fc = DW_DMA_FC_D_M2P;
if (platform_device_add_data(pdev, data,
sizeof(struct atmel_abdac_pdata)))
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