From: Eugeniu Rosca <roscaeugeniu@gmail.com>
To: Geert Uytterhoeven <geert+renesas@glider.be>,
Simon Horman <horms+renesas@verge.net.au>,
Chris Brandt <chris.brandt@renesas.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Ulrich Hecht <ulrich.hecht+renesas@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "George G . Davis" <george_davis@mentor.com>,
Andy Lowe <andy_lowe@mentor.com>,
linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, Magnus Damm <magnus.damm@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Eugeniu Rosca <erosca@de.adit-jv.com>,
Eugeniu Rosca <roscaeugeniu@gmail.com>
Subject: [PATCH 6/6] Revert "arm64: dts: renesas: r8a77995: add DMA for SCIF2"
Date: Sat, 4 May 2019 02:42:58 +0200 [thread overview]
Message-ID: <20190504004258.23574-7-erosca@de.adit-jv.com> (raw)
In-Reply-To: <20190504004258.23574-1-erosca@de.adit-jv.com>
This reverts commit af2ea3df851ffa68ad07ff59d4dabadbf33b45ef.
Both empirically and based on the existing documentation, it looks like
SCIF2 does not support DMA. Let's disable it. Full reasoning is given in
commit ("Revert "arm64: dts: renesas: r8a7796: Enable DMA for SCIF2"").
Fixes: af2ea3df851ffa ("arm64: dts: renesas: r8a77995: add DMA for SCIF2")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
---
arch/arm64/boot/dts/renesas/r8a77995.dtsi | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm64/boot/dts/renesas/r8a77995.dtsi b/arch/arm64/boot/dts/renesas/r8a77995.dtsi
index 5bf3af246e14..bd3ac5d00b2e 100644
--- a/arch/arm64/boot/dts/renesas/r8a77995.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77995.dtsi
@@ -740,9 +740,6 @@
<&cpg CPG_CORE R8A77995_CLK_S3D1C>,
<&scif_clk>;
clock-names = "fck", "brg_int", "scif_clk";
- dmas = <&dmac1 0x13>, <&dmac1 0x12>,
- <&dmac2 0x13>, <&dmac2 0x12>;
- dma-names = "tx", "rx", "tx", "rx";
power-domains = <&sysc R8A77995_PD_ALWAYS_ON>;
resets = <&cpg 310>;
status = "disabled";
--
2.21.0
prev parent reply other threads:[~2019-05-04 0:46 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-04 0:42 [PATCH 0/6] Zap SCIF2 DMA configuration in R-Car Gen3 DTS Eugeniu Rosca
2019-05-04 0:42 ` [PATCH 1/6] serial: sh-sci: Reveal ptrval in dev_dbg Eugeniu Rosca
2019-05-06 13:47 ` Simon Horman
2019-05-06 15:24 ` Eugeniu Rosca
2019-05-06 16:46 ` Geert Uytterhoeven
2019-05-06 17:12 ` Eugeniu Rosca
2019-05-04 0:42 ` [PATCH 2/6] Revert "arm64: dts: renesas: r8a7796: Enable DMA for SCIF2" Eugeniu Rosca
2019-05-06 10:02 ` Geert Uytterhoeven
2019-05-06 19:42 ` Eugeniu Rosca
[not found] ` <1557413011-1662-1-git-send-email-george_davis@mentor.com>
2019-05-10 17:10 ` [PATCH] serial: sh-sci: disable DMA for uart_console Eugeniu Rosca
2019-05-10 18:38 ` George G. Davis
2019-05-13 10:28 ` Eugeniu Rosca
2019-05-13 11:13 ` Geert Uytterhoeven
2019-05-13 11:42 ` Simon Horman
2019-05-13 13:51 ` Wolfram Sang
2019-05-13 15:43 ` George G. Davis
2019-05-20 2:18 ` [PATCH 2/6] Revert "arm64: dts: renesas: r8a7796: Enable DMA for SCIF2" Yoshihiro Shimoda
2019-05-20 7:37 ` Geert Uytterhoeven
2019-05-20 9:52 ` Yoshihiro Shimoda
2019-05-04 0:42 ` [PATCH 3/6] arm64: dts: renesas: r8a7795: zap dma configuration in scif2 Eugeniu Rosca
2019-05-04 0:42 ` [PATCH 4/6] Revert "arm64: dts: renesas: r8a77965: Enable DMA for SCIF2" Eugeniu Rosca
2019-05-04 0:42 ` [PATCH 5/6] Revert "arm64: dts: renesas: r8a77990: " Eugeniu Rosca
2019-05-04 0:42 ` Eugeniu Rosca [this message]
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