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authorGeert Uytterhoeven <geert+renesas@glider.be>2018-12-03 17:18:06 +0300
committerVinod Koul <vkoul@kernel.org>2018-12-05 10:31:54 +0300
commita19788612f51b7874e0cedce4dfff535e502015a (patch)
tree5e5d9a9404bebe92114546e944fba352ab667acc /drivers/dma/sh/shdmac.c
parentb9b4ed210380e51f5c5960dcbceedcc0bbe28408 (diff)
downloadlinux-a19788612f51b7874e0cedce4dfff535e502015a.tar.xz
dmaengine: sh: Remove R-Mobile APE6 support
Renesas R-Mobile APE6 support is currently unused: - DMA slaves were never enabled in r8a73a4.dtsi, - The driver relies on legacy filter matching and describing all slaves and MID/RIDs in a table, unlike modern DMA engine drivers for similar hardware like rcar-dmac, - The driver doesn't seem to work well. Remove the driver, it can be resurrected from git history when needed. As this was the last user of SH_DMAE_BASE on Renesas ARM SoCs, the sh-dma-engine driver core is now used on SuperH only. Note that the DT bindings are still present, as r8a73a4.dtsi uses them. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/sh/shdmac.c')
-rw-r--r--drivers/dma/sh/shdmac.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
index 7971ea275387..5aafe548ca5f 100644
--- a/drivers/dma/sh/shdmac.c
+++ b/drivers/dma/sh/shdmac.c
@@ -665,12 +665,6 @@ static const struct shdma_ops sh_dmae_shdma_ops = {
.get_partial = sh_dmae_get_partial,
};
-static const struct of_device_id sh_dmae_of_match[] = {
- {.compatible = "renesas,shdma-r8a73a4", .data = r8a73a4_shdma_devid,},
- {}
-};
-MODULE_DEVICE_TABLE(of, sh_dmae_of_match);
-
static int sh_dmae_probe(struct platform_device *pdev)
{
const enum dma_slave_buswidth widths =
@@ -915,7 +909,6 @@ static struct platform_driver sh_dmae_driver = {
.driver = {
.pm = &sh_dmae_pm,
.name = SH_DMAE_DRV_NAME,
- .of_match_table = sh_dmae_of_match,
},
.remove = sh_dmae_remove,
};