Remove the DT-based Renesas SHDMA DMA multiplexer driver, as it is
unused. The DMA multiplexer node and one DMA controller instance were
added to the R-Mobile APE6 .dtsi file, but DMA support was never fully
enabled, cfr. commit a19788612f51b787 ("dmaengine: sh: Remove R-Mobile
APE6 support").
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
drivers/dma/sh/Makefile | 2 +-
drivers/dma/sh/shdma-of.c | 76 ---------------------------------------
2 files changed, 1 insertion(+), 77 deletions(-)
delete mode 100644 drivers/dma/sh/shdma-of.c
diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
index 112fbd22bb3fb984..abdf10341725c36b 100644
--- a/drivers/dma/sh/Makefile
+++ b/drivers/dma/sh/Makefile
@@ -3,7 +3,7 @@
# DMA Engine Helpers
#
-obj-$(CONFIG_SH_DMAE_BASE) += shdma-base.o shdma-of.o
+obj-$(CONFIG_SH_DMAE_BASE) += shdma-base.o
#
# DMA Controllers
diff --git a/drivers/dma/sh/shdma-of.c b/drivers/dma/sh/shdma-of.c
deleted file mode 100644
index be89dd894328f589..0000000000000000
--- a/drivers/dma/sh/shdma-of.c
+++ /dev/null
@@ -1,76 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * SHDMA Device Tree glue
- *
- * Copyright (C) 2013 Renesas Electronics Inc.
- * Author: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
- */
-
-#include <linux/dmaengine.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_dma.h>
-#include <linux/of_platform.h>
-#include <linux/platform_device.h>
-#include <linux/shdma-base.h>
-
-#define to_shdma_chan(c) container_of(c, struct shdma_chan, dma_chan)
-
-static struct dma_chan *shdma_of_xlate(struct of_phandle_args *dma_spec,
- struct of_dma *ofdma)
-{
- u32 id = dma_spec->args[0];
- dma_cap_mask_t mask;
- struct dma_chan *chan;
-
- if (dma_spec->args_count != 1)
- return NULL;
-
- dma_cap_zero(mask);
- /* Only slave DMA channels can be allocated via DT */
- dma_cap_set(DMA_SLAVE, mask);
-
- chan = dma_request_channel(mask, shdma_chan_filter,
- (void *)(uintptr_t)id);
- if (chan)
- to_shdma_chan(chan)->hw_req = id;
-
- return chan;
-}
-
-static int shdma_of_probe(struct platform_device *pdev)
-{
- const struct of_dev_auxdata *lookup = dev_get_platdata(&pdev->dev);
- int ret;
-
- ret = of_dma_controller_register(pdev->dev.of_node,
- shdma_of_xlate, pdev);
- if (ret < 0)
- return ret;
-
- ret = of_platform_populate(pdev->dev.of_node, NULL, lookup, &pdev->dev);
- if (ret < 0)
- of_dma_controller_free(pdev->dev.of_node);
-
- return ret;
-}
-
-static const struct of_device_id shdma_of_match[] = {
- { .compatible = "renesas,shdma-mux", },
- { }
-};
-MODULE_DEVICE_TABLE(of, sh_dmae_of_match);
-
-static struct platform_driver shdma_of = {
- .driver = {
- .name = "shdma-of",
- .of_match_table = shdma_of_match,
- },
- .probe = shdma_of_probe,
-};
-
-module_platform_driver(shdma_of);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("SH-DMA driver DT glue");
-MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@xxxxxx>");
--
2.25.1
