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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-07 11:11:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-07 11:11:43 -0700
commitd2b4a646717153a1a180b64d4a8464054dbd700e (patch)
treea019907da37389f59ddb429c7d10de178514af1e /drivers/dma/dw/internal.h
parent8dce5f3dee21bf976193ddb06426b9727cf5d1a2 (diff)
parent67eacc1583909d0588c8d5d80c16298c899a6382 (diff)
downloadblackbird-op-linux-d2b4a646717153a1a180b64d4a8464054dbd700e.tar.gz
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Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul: "Once you have some time from extended weekend celebrations please consider pulling the following to get: - Various fixes and PCI driver for dw_dmac by Andy - DT binding for imx-dma by Markus & imx-sdma by Shawn - DT fixes for dmaengine by Lars - jz4740 dmac driver by Lars - and various fixes across the drivers" What "extended weekend celebrations"? I'm in the merge window, who has time for extended celebrations.. * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (40 commits) DMA: shdma: add DT support DMA: shdma: shdma_chan_filter() has to be in shdma-base.h DMA: shdma: (cosmetic) don't re-calculate a pointer dmaengine: at_hdmac: prepare clk before calling enable dmaengine/trivial: at_hdmac: add curly brackets to if/else expressions dmaengine: at_hdmac: remove unsuded atc_cleanup_descriptors() dmaengine: at_hdmac: add FIFO configuration parameter to DMA DT binding ARM: at91: dt: add header to define at_hdmac configuration MIPS: jz4740: Correct clock gate bit for DMA controller MIPS: jz4740: Remove custom DMA API MIPS: jz4740: Register jz4740 DMA device dma: Add a jz4740 dmaengine driver MIPS: jz4740: Acquire and enable DMA controller clock dma: mmp_tdma: disable irq when disabling dma channel dmaengine: PL08x: Avoid collisions with get_signal() macro dmaengine: dw: select DW_DMAC_BIG_ENDIAN_IO automagically dma: dw: add PCI part of the driver dma: dw: split driver to library part and platform code dma: move dw_dmac driver to an own directory dw_dmac: don't check resource with devm_ioremap_resource ...
Diffstat (limited to 'drivers/dma/dw/internal.h')
-rw-r--r--drivers/dma/dw/internal.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/dma/dw/internal.h b/drivers/dma/dw/internal.h
new file mode 100644
index 000000000000..32667f9e0dda
--- /dev/null
+++ b/drivers/dma/dw/internal.h
@@ -0,0 +1,70 @@
+/*
+ * Driver for the Synopsys DesignWare DMA Controller
+ *
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * 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 _DW_DMAC_INTERNAL_H
+#define _DW_DMAC_INTERNAL_H
+
+#include <linux/device.h>
+#include <linux/dw_dmac.h>
+
+#include "regs.h"
+
+/**
+ * struct dw_dma_chip - representation of DesignWare DMA controller hardware
+ * @dev: struct device of the DMA controller
+ * @irq: irq line
+ * @regs: memory mapped I/O space
+ * @dw: struct dw_dma that is filed by dw_dma_probe()
+ */
+struct dw_dma_chip {
+ struct device *dev;
+ int irq;
+ void __iomem *regs;
+ struct dw_dma *dw;
+};
+
+/* Export to the platform drivers */
+int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata);
+int dw_dma_remove(struct dw_dma_chip *chip);
+
+void dw_dma_shutdown(struct dw_dma_chip *chip);
+
+#ifdef CONFIG_PM_SLEEP
+
+int dw_dma_suspend(struct dw_dma_chip *chip);
+int dw_dma_resume(struct dw_dma_chip *chip);
+
+#endif /* CONFIG_PM_SLEEP */
+
+/**
+ * dwc_get_dms - get destination master
+ * @slave: pointer to the custom slave configuration
+ *
+ * Returns destination master in the custom slave configuration if defined, or
+ * default value otherwise.
+ */
+static inline unsigned int dwc_get_dms(struct dw_dma_slave *slave)
+{
+ return slave ? slave->dst_master : 0;
+}
+
+/**
+ * dwc_get_sms - get source master
+ * @slave: pointer to the custom slave configuration
+ *
+ * Returns source master in the custom slave configuration if defined, or
+ * default value otherwise.
+ */
+static inline unsigned int dwc_get_sms(struct dw_dma_slave *slave)
+{
+ return slave ? slave->src_master : 1;
+}
+
+#endif /* _DW_DMAC_INTERNAL_H */
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