dmaengine: dw: dmamux: Introduce RZN1 DMA router support

The Renesas RZN1 DMA IP is based on a DW core, with eg. an additional
dmamux register located in the system control area which can take up to

dmaengine: dw: dmamux: Introduce RZN1 DMA router support

The Renesas RZN1 DMA IP is based on a DW core, with eg. an additional
dmamux register located in the system control area which can take up to
32 requests (16 per DMA controller). Each DMA channel can be wired to
two different peripherals.

We need two additional information from the 'dmas' property: the channel
(bit in the dmamux register) that must be accessed and the value of the
mux for this channel.

Signed-off-by: Miquel Raynal <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Reviewed-by: Ilpo Järvinen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

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dmaengine: dw: Make it dependent to HAS_IOMEM

Some architectures do not provide devm_*() APIs. Hence make the driver
dependent on HAVE_IOMEM.

Fixes: dbde5c2934d1 ("dw_dmac: use devm_* functions to

dmaengine: dw: Make it dependent to HAS_IOMEM

Some architectures do not provide devm_*() APIs. Hence make the driver
dependent on HAVE_IOMEM.

Fixes: dbde5c2934d1 ("dw_dmac: use devm_* functions to simplify code")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

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dmaengine: dw: convert to SPDX identifiers

This patch updates license to use SPDX-License-Identifier
instead of verbose license text.

Signed-off-by: Andy Shevchenko <[email protected]

dmaengine: dw: convert to SPDX identifiers

This patch updates license to use SPDX-License-Identifier
instead of verbose license text.

Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>

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dmaengine: dw: Remove AVR32 bits from the driver

AVR32 is gone. Now it's time to clean up the driver by removing
leftovers that was used by AVR32 related code.

Signed-off-by: Andy Shevchenko <andri

dmaengine: dw: Remove AVR32 bits from the driver

AVR32 is gone. Now it's time to clean up the driver by removing
leftovers that was used by AVR32 related code.

Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Vinod Koul <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>

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dmaengine: dw: fix typo in Kconfig

platfroms -> platforms

Signed-off-by: Jean Delvare <[email protected]>
Fixes: fed42c198b45 ("dma: dw: add PCI part of the driver")
Cc: Viresh Kumar <vireshk@kernel

dmaengine: dw: fix typo in Kconfig

platfroms -> platforms

Signed-off-by: Jean Delvare <[email protected]>
Fixes: fed42c198b45 ("dma: dw: add PCI part of the driver")
Cc: Viresh Kumar <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>

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dmaengine: sort the dw Kconfig

Signed-off-by: Vinod Koul <[email protected]>

dmaengine: dw: don't prompt for DW_DMAC_CORE

DW_DMAC_CORE is slected by PCI or Platform driver, so this symbol shouldn't
be user selectable, so remove the prompt

Signed-off-by: Vinod Koul <vinod.ko

dmaengine: dw: don't prompt for DW_DMAC_CORE

DW_DMAC_CORE is slected by PCI or Platform driver, so this symbol shouldn't
be user selectable, so remove the prompt

Signed-off-by: Vinod Koul <[email protected]>

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Remove GENERIC_HARDIRQ config option

After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HA

Remove GENERIC_HARDIRQ config option

After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.

Signed-off-by: Martin Schwidefsky <[email protected]>

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dmaengine: dw: select DW_DMAC_BIG_ENDIAN_IO automagically

Signed-off-by: Vinod Koul <[email protected]>

dma: dw: add PCI part of the driver

This is the PCI part of the DesignWare DMAC driver. The controller is usually
used in the Intel hardware such as Intel Medfield.

Signed-off-by: Andy Shevchenko <

dma: dw: add PCI part of the driver

This is the PCI part of the DesignWare DMAC driver. The controller is usually
used in the Intel hardware such as Intel Medfield.

Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>

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dma: dw: split driver to library part and platform code

To simplify the driver development let's split driver to library and platform
code parts. It helps us to add PCI driver in future.

Signed-off

dma: dw: split driver to library part and platform code

To simplify the driver development let's split driver to library and platform
code parts. It helps us to add PCI driver in future.

Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
[Fixed compile error and few checkpatch issues]
Signed-off-by: Vinod Koul <[email protected]>

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dma: move dw_dmac driver to an own directory

The dw_dmac driver is going to be split into multiple files. To make this more
convenient move it to an own directory.

Signed-off-by: Andy Shevchenko <a

dma: move dw_dmac driver to an own directory

The dw_dmac driver is going to be split into multiple files. To make this more
convenient move it to an own directory.

Signed-off-by: Andy Shevchenko <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>

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