Merge tag 'dmaengine-5.3-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:

 - Add support in dmaengine core to do device node checks for DT devices
   and update bunch of drivers to use that and remove open coding from
   drivers

 - New driver/driver support for new hardware, namely:
     - MediaTek UART APDMA
     - Freescale i.mx7ulp edma2
     - Synopsys eDMA IP core version 0
     - Allwinner H6 DMA

 - Updates to axi-dma and support for interleaved cyclic transfers

 - Greg's debugfs return value check removals on drivers

 - Updates to stm32-dma, hsu, dw, pl330, tegra drivers

* tag 'dmaengine-5.3-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (68 commits)
  dmaengine: Revert "dmaengine: fsl-edma: add i.mx7ulp edma2 version support"
  dmaengine: at_xdmac: check for non-empty xfers_list before invoking callback
  Documentation: dmaengine: clean up description of dmatest usage
  dmaengine: tegra210-adma: remove PM_CLK dependency
  dmaengine: fsl-edma: add i.mx7ulp edma2 version support
  dt-bindings: dma: fsl-edma: add new i.mx7ulp-edma
  dmaengine: fsl-edma-common: version check for v2 instead
  dmaengine: fsl-edma-common: move dmamux register to another single function
  dmaengine: fsl-edma: add drvdata for fsl-edma
  dmaengine: Revert "dmaengine: fsl-edma: support little endian for edma driver"
  dmaengine: rcar-dmac: Reject zero-length slave DMA requests
  dmaengine: dw: Enable iDMA 32-bit on Intel Elkhart Lake
  dmaengine: dw-edma: fix semicolon.cocci warnings
  dmaengine: sh: usb-dmac: Use [] to denote a flexible array member
  dmaengine: dmatest: timeout value of -1 should specify infinite wait
  dmaengine: dw: Distinguish ->remove() between DW and iDMA 32-bit
  dmaengine: fsl-edma: support little endian for edma driver
  dmaengine: hsu: Revert "set HSU_CH_MTSR to memory width"
  dmagengine: pl330: add code to get reset property
  dt-bindings: pl330: document the optional resets property
  ...

6 files changed, 75 insertions, 54 deletions

diff --git a/include/linux/dma/edma.h b/include/linux/dma/edma.h
new file mode 100644
index 000000000000..cab6e18773da
--- /dev/null
+++ b/include/linux/dma/edma.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2018-2019 Synopsys, Inc. and/or its affiliates.
+ * Synopsys DesignWare eDMA core driver
+ *
+ * Author: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
+ */
+
+#ifndef _DW_EDMA_H
+#define _DW_EDMA_H
+
+#include <linux/device.h>
+#include <linux/dmaengine.h>
+
+struct dw_edma;
+
+/**
+ * struct dw_edma_chip - representation of DesignWare eDMA controller hardware
+ * @dev:                 struct device of the eDMA controller
+ * @id:                  instance ID
+ * @irq:                 irq line
+ * @dw:                  struct dw_edma that is filed by dw_edma_probe()
+ */
+struct dw_edma_chip {
+        struct device           *dev;
+        int                     id;
+        int                     irq;
+        struct dw_edma          *dw;
+};
+
+/* Export to the platform drivers */
+#if IS_ENABLED(CONFIG_DW_EDMA)
+int dw_edma_probe(struct dw_edma_chip *chip);
+int dw_edma_remove(struct dw_edma_chip *chip);
+#else
+static inline int dw_edma_probe(struct dw_edma_chip *chip)
+{
+        return -ENODEV;
+}
+
+static inline int dw_edma_remove(struct dw_edma_chip *chip)
+{
+        return 0;
+}
+#endif /* CONFIG_DW_EDMA */
+
+#endif /* _DW_EDMA_H */
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index c952f987ee57..8fcdee1c0cf9 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -1302,7 +1302,8 @@ enum dma_status dma_sync_wait(struct dma_chan *chan, dma_cookie_t cookie);
 enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx);
 void dma_issue_pending_all(void);
 struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
-                                        dma_filter_fn fn, void *fn_param);
+                                       dma_filter_fn fn, void *fn_param,
+                                       struct device_node *np);
 struct dma_chan *dma_request_slave_channel(struct device *dev, const char *name);
 
 struct dma_chan *dma_request_chan(struct device *dev, const char *name);
@@ -1327,7 +1328,9 @@ static inline void dma_issue_pending_all(void)
 {
 }
 static inline struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
-                                              dma_filter_fn fn, void *fn_param)
+                                                     dma_filter_fn fn,
+                                                     void *fn_param,
+                                                     struct device_node *np)
 {
         return NULL;
 }
@@ -1399,7 +1402,8 @@ void dma_async_device_unregister(struct dma_device *device);
 void dma_run_dependencies(struct dma_async_tx_descriptor *tx);
 struct dma_chan *dma_get_slave_channel(struct dma_chan *chan);
 struct dma_chan *dma_get_any_slave_channel(struct dma_device *device);
-#define dma_request_channel(mask, x, y) __dma_request_channel(&(mask), x, y)
+#define dma_request_channel(mask, x, y) \
+        __dma_request_channel(&(mask), x, y, NULL)
 #define dma_request_slave_channel_compat(mask, x, y, dev, name) \
         __dma_request_slave_channel_compat(&(mask), x, y, dev, name)
 
@@ -1417,6 +1421,6 @@ static inline struct dma_chan
         if (!fn || !fn_param)
                 return NULL;
 
-        return __dma_request_channel(mask, fn, fn_param);
+        return __dma_request_channel(mask, fn, fn_param, NULL);
 }
 #endif /* DMAENGINE_H */
diff --git a/include/linux/fpga/adi-axi-common.h b/include/linux/fpga/adi-axi-common.h
new file mode 100644
index 000000000000..7fc95d5c95bb
--- /dev/null
+++ b/include/linux/fpga/adi-axi-common.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Analog Devices AXI common registers & definitions
+ *
+ * Copyright 2019 Analog Devices Inc.
+ *
+ * https://wiki.analog.com/resources/fpga/docs/axi_ip
+ * https://wiki.analog.com/resources/fpga/docs/hdl/regmap
+ */
+
+#ifndef ADI_AXI_COMMON_H_
+#define ADI_AXI_COMMON_H_
+
+#define ADI_AXI_REG_VERSION                     0x0000
+
+#define ADI_AXI_PCORE_VER(major, minor, patch)  \
+        (((major) << 16) | ((minor) << 8) | (patch))
+
+#endif /* ADI_AXI_COMMON_H_ */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 40015609c4b5..c842735a4f45 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2367,6 +2367,7 @@
 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3         0xabcd
 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI     0xabce
 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31        0xabcf
+#define PCI_DEVICE_ID_SYNOPSYS_EDDA     0xedda
 
 #define PCI_VENDOR_ID_USR               0x16ec
 
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h
index 80f9be858bd0..281adbb26e6b 100644
--- a/include/linux/platform_data/dma-imx.h
+++ b/include/linux/platform_data/dma-imx.h
@@ -52,7 +52,6 @@ struct imx_dma_data {
         int dma_request2; /* secondary DMA request line */
         enum sdma_peripheral_type peripheral_type;
         int priority;
-        struct device_node *of_node;
 };
 
 static inline int imx_dma_is_ipu(struct dma_chan *chan)
diff --git a/include/linux/sudmac.h b/include/linux/sudmac.h
deleted file mode 100644
index cccc0a665d26..000000000000
--- a/include/linux/sudmac.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Header for the SUDMAC driver
- *
- * Copyright (C) 2013 Renesas Solutions Corp.
- */
-#ifndef SUDMAC_H
-#define SUDMAC_H
-
-#include <linux/dmaengine.h>
-#include <linux/shdma-base.h>
-#include <linux/types.h>
-
-/* Used by slave DMA clients to request DMA to/from a specific peripheral */
-struct sudmac_slave {
-        struct shdma_slave      shdma_slave;    /* Set by the platform */
-};
-
-/*
- * Supplied by platforms to specify, how a DMA channel has to be configured for
- * a certain peripheral
- */
-struct sudmac_slave_config {
-        int             slave_id;
-};
-
-struct sudmac_channel {
-        unsigned long   offset;
-        unsigned long   config;
-        unsigned long   wait;           /* The configuable range is 0 to 3 */
-        unsigned long   dint_end_bit;
-};
-
-struct sudmac_pdata {
-        const struct sudmac_slave_config *slave;
-        int slave_num;
-        const struct sudmac_channel *channel;
-        int channel_num;
-};
-
-/* Definitions for the sudmac_channel.config */
-#define SUDMAC_TX_BUFFER_MODE   BIT(0)
-#define SUDMAC_RX_END_MODE      BIT(1)
-
-/* Definitions for the sudmac_channel.dint_end_bit */
-#define SUDMAC_DMA_BIT_CH0      BIT(0)
-#define SUDMAC_DMA_BIT_CH1      BIT(1)
-
-#endif