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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-11 07:14:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-11 07:14:01 -0700
commitc7a19c795b4b0a3232c157ed29eea85077e95da6 (patch)
treed3916dcdea74b55453694c9f31b95b6d906e3202 /include
parent5fd41f2a10b38ab84b4c2436140ce490d34291fa (diff)
parenta0bbe990c161ddf56444efe80d9d6e15fdc47aca (diff)
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dma updates from Vinod Koul: "Some notable changes are: - new driver for AMBA AXI NBPF by Guennadi - new driver for sun6i controller by Maxime - pl330 drivers fixes from Lar's - sh-dma updates and fixes from Laurent, Geert and Kuninori - Documentation updates from Geert - drivers fixes and updates spread over dw, edma, freescale, mpc512x etc.." * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (72 commits) dmaengine: sun6i: depends on RESET_CONTROLLER dma: at_hdmac: fix invalid remaining bytes detection dmaengine: nbpfaxi: don't build this driver where it cannot be used dmaengine: nbpf_error_get_channel() can be static dma: pl08x: Use correct specifier for size_t values dmaengine: Remove the context argument to the prep_dma_cyclic operation dmaengine: nbpfaxi: convert to tasklet dmaengine: nbpfaxi: fix a theoretical race dmaengine: add a driver for AMBA AXI NBPF DMAC IP cores dmaengine: add device tree binding documentation for the nbpfaxi driver dmaengine: edma: Do not register second device when booted with DT dmaengine: edma: Do not change the error code returned from edma_alloc_slot dmaengine: rcar-dmac: Add device tree bindings documentation dmaengine: shdma: Allocate cyclic sg list dynamically dmaengine: shdma: Make channel filter ignore unrelated devices dmaengine: sh: Rework Kconfig and Makefile dmaengine: sun6i: Fix memory leaks dmaengine: sun6i: Free the interrupt before killing the tasklet dmaengine: sun6i: Remove switch statement from buswidth convertion routine dmaengine: of: kconfig: select DMA_ENGINE when DMA_OF is selected ...
Diffstat (limited to 'include')
-rw-r--r--include/dt-bindings/dma/nbpfaxi.h20
-rw-r--r--include/linux/dmaengine.h5
-rw-r--r--include/linux/of_dma.h4
-rw-r--r--include/linux/platform_data/dma-imx.h1
-rw-r--r--include/linux/platform_data/edma.h2
-rw-r--r--include/linux/sh_dma.h24
6 files changed, 42 insertions, 14 deletions
diff --git a/include/dt-bindings/dma/nbpfaxi.h b/include/dt-bindings/dma/nbpfaxi.h
new file mode 100644
index 000000000000..c1a5b9e0d6a4
--- /dev/null
+++ b/include/dt-bindings/dma/nbpfaxi.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2013-2014 Renesas Electronics Europe Ltd.
+ * Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef DT_BINDINGS_NBPFAXI_H
+#define DT_BINDINGS_NBPFAXI_H
+
+/**
+ * Use "#dma-cells = <2>;" with the second integer defining slave DMA flags:
+ */
+#define NBPF_SLAVE_RQ_HIGH 1
+#define NBPF_SLAVE_RQ_LOW 2
+#define NBPF_SLAVE_RQ_LEVEL 4
+
+#endif
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 3d1c2aa51530..1f9e642c66ad 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -37,7 +37,6 @@
*/
typedef s32 dma_cookie_t;
#define DMA_MIN_COOKIE 1
-#define DMA_MAX_COOKIE INT_MAX
static inline int dma_submit_error(dma_cookie_t cookie)
{
@@ -671,7 +670,7 @@ struct dma_device {
struct dma_async_tx_descriptor *(*device_prep_dma_cyclic)(
struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
size_t period_len, enum dma_transfer_direction direction,
- unsigned long flags, void *context);
+ unsigned long flags);
struct dma_async_tx_descriptor *(*device_prep_interleaved_dma)(
struct dma_chan *chan, struct dma_interleaved_template *xt,
unsigned long flags);
@@ -746,7 +745,7 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic(
unsigned long flags)
{
return chan->device->device_prep_dma_cyclic(chan, buf_addr, buf_len,
- period_len, dir, flags, NULL);
+ period_len, dir, flags);
}
static inline struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma(
diff --git a/include/linux/of_dma.h b/include/linux/of_dma.h
index ae36298ba076..56bc026c143f 100644
--- a/include/linux/of_dma.h
+++ b/include/linux/of_dma.h
@@ -41,6 +41,8 @@ extern struct dma_chan *of_dma_request_slave_channel(struct device_node *np,
const char *name);
extern struct dma_chan *of_dma_simple_xlate(struct of_phandle_args *dma_spec,
struct of_dma *ofdma);
+extern struct dma_chan *of_dma_xlate_by_chan_id(struct of_phandle_args *dma_spec,
+ struct of_dma *ofdma);
#else
static inline int of_dma_controller_register(struct device_node *np,
struct dma_chan *(*of_dma_xlate)
@@ -66,6 +68,8 @@ static inline struct dma_chan *of_dma_simple_xlate(struct of_phandle_args *dma_s
return NULL;
}
+#define of_dma_xlate_by_chan_id NULL
+
#endif
#endif /* __LINUX_OF_DMA_H */
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h
index d05542aafa3e..6a1357d31871 100644
--- a/include/linux/platform_data/dma-imx.h
+++ b/include/linux/platform_data/dma-imx.h
@@ -40,6 +40,7 @@ enum sdma_peripheral_type {
IMX_DMATYPE_ASRC, /* ASRC */
IMX_DMATYPE_ESAI, /* ESAI */
IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */
+ IMX_DMATYPE_ASRC_SP, /* Shared ASRC */
};
enum imx_dma_prio {
diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h
index eb8d5627d080..bdb2710e2aab 100644
--- a/include/linux/platform_data/edma.h
+++ b/include/linux/platform_data/edma.h
@@ -150,6 +150,8 @@ void edma_clear_event(unsigned channel);
void edma_pause(unsigned channel);
void edma_resume(unsigned channel);
+void edma_assign_channel_eventq(unsigned channel, enum dma_event_q eventq_no);
+
struct edma_rsv_info {
const s16 (*rsv_chans)[2];
diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h
index b7b43b82231e..56b97eed28a4 100644
--- a/include/linux/sh_dma.h
+++ b/include/linux/sh_dma.h
@@ -95,19 +95,21 @@ struct sh_dmae_pdata {
};
/* DMAOR definitions */
-#define DMAOR_AE 0x00000004
+#define DMAOR_AE 0x00000004 /* Address Error Flag */
#define DMAOR_NMIF 0x00000002
-#define DMAOR_DME 0x00000001
+#define DMAOR_DME 0x00000001 /* DMA Master Enable */
/* Definitions for the SuperH DMAC */
-#define DM_INC 0x00004000
-#define DM_DEC 0x00008000
-#define DM_FIX 0x0000c000
-#define SM_INC 0x00001000
-#define SM_DEC 0x00002000
-#define SM_FIX 0x00003000
-#define CHCR_DE 0x00000001
-#define CHCR_TE 0x00000002
-#define CHCR_IE 0x00000004
+#define DM_INC 0x00004000 /* Destination addresses are incremented */
+#define DM_DEC 0x00008000 /* Destination addresses are decremented */
+#define DM_FIX 0x0000c000 /* Destination address is fixed */
+#define SM_INC 0x00001000 /* Source addresses are incremented */
+#define SM_DEC 0x00002000 /* Source addresses are decremented */
+#define SM_FIX 0x00003000 /* Source address is fixed */
+#define RS_AUTO 0x00000400 /* Auto Request */
+#define RS_ERS 0x00000800 /* DMA extended resource selector */
+#define CHCR_DE 0x00000001 /* DMA Enable */
+#define CHCR_TE 0x00000002 /* Transfer End Flag */
+#define CHCR_IE 0x00000004 /* Interrupt Enable */
#endif