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dmaengine: remove sirfsoc driver

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The CSR SiRF prima2/atlas platforms are getting removed, so this driver
is no longer needed.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Barry Song <baohua@kernel.org>
Cc: Barry Song <baohua@kernel.org>
Link: https://lore.kernel.org/r/20210120131859.2056308-2-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Arnd Bergmann 2021-01-20 14:18:57 +01:00 committed by Vinod Koul
parent be7ccfa6c3
commit ec6ab42f5a
5 changed files with 0 additions and 1229 deletions
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44
Documentation/devicetree/bindings/dma/sirfsoc-dma.txt
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@ -1,44 +0,0 @@
* CSR SiRFSoC DMA controller
See dma.txt first
Required properties:
- compatible: Should be "sirf,prima2-dmac", "sirf,atlas7-dmac" or
"sirf,atlas7-dmac-v2"
- reg: Should contain DMA registers location and length.
- interrupts: Should contain one interrupt shared by all channel
- #dma-cells: must be <1>. used to represent the number of integer
cells in the dmas property of client device.
- clocks: clock required
Example:
Controller:
dmac0: dma-controller@b00b0000 {
compatible = "sirf,prima2-dmac";
reg = <0xb00b0000 0x10000>;
interrupts = <12>;
clocks = <&clks 24>;
#dma-cells = <1>;
};
Client:
Fill the specific dma request line in dmas. In the below example, spi0 read
channel request line is 9 of the 2nd dma controller, while write channel uses
4 of the 2nd dma controller; spi1 read channel request line is 12 of the 1st
dma controller, while write channel uses 13 of the 1st dma controller:
spi0: spi@b00d0000 {
compatible = "sirf,prima2-spi";
dmas = <&dmac1 9>,
<&dmac1 4>;
dma-names = "rx", "tx";
};
spi1: spi@b0170000 {
compatible = "sirf,prima2-spi";
dmas = <&dmac0 12>,
<&dmac0 13>;
dma-names = "rx", "tx";
};

7
drivers/dma/Kconfig
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@ -519,13 +519,6 @@ config PLX_DMA
These are exposed via extra functions on the switch's
upstream port. Each function exposes one DMA channel.
config SIRF_DMA
tristate "CSR SiRFprimaII/SiRFmarco DMA support"
depends on ARCH_SIRF
select DMA_ENGINE
help
Enable support for the CSR SiRFprimaII DMA engine.
config STE_DMA40
bool "ST-Ericsson DMA40 support"
depends on ARCH_U8500

1
drivers/dma/Makefile
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@ -65,7 +65,6 @@ obj-$(CONFIG_PPC_BESTCOMM) += bestcomm/
obj-$(CONFIG_PXA_DMA) += pxa_dma.o
obj-$(CONFIG_RENESAS_DMA) += sh/
obj-$(CONFIG_SF_PDMA) += sf-pdma/
obj-$(CONFIG_SIRF_DMA) += sirf-dma.o
obj-$(CONFIG_STE_DMA40) += ste_dma40.o ste_dma40_ll.o
obj-$(CONFIG_STM32_DMA) += stm32-dma.o
obj-$(CONFIG_STM32_DMAMUX) += stm32-dmamux.o

1170
drivers/dma/sirf-dma.c
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File diff suppressed because it is too large Load Diff

7
include/linux/sirfsoc_dma.h
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@ -1,7 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SIRFSOC_DMA_H_
#define _SIRFSOC_DMA_H_
bool sirfsoc_dma_filter_id(struct dma_chan *chan, void *chan_id);
#endif