From: Katsuhiro Suzuki <katsuhiro@katsuster.net>
To: Heiko Stuebner <heiko@sntech.de>, linux-rockchip@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Katsuhiro Suzuki <katsuhiro@katsuster.net>
Subject: [PATCH] ARM: dts: rockchip: use DMA channels for UARTs of TinkerBoard
Date: Sat, 14 Mar 2020 23:23:27 +0900 [thread overview]
Message-ID: <20200314142327.25568-1-katsuhiro@katsuster.net> (raw)
This patch enables to use DMAC for all UARTs that are connected to
dmac_peri core for TinkerBoard.
Only uart2 is connected different DMAC (dmac_bus_s) so keep current
settings on this patch.
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
---
arch/arm/boot/dts/rk3288-tinker.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/boot/dts/rk3288-tinker.dtsi b/arch/arm/boot/dts/rk3288-tinker.dtsi
index 312582c1bd37..6efabeaf3c6d 100644
--- a/arch/arm/boot/dts/rk3288-tinker.dtsi
+++ b/arch/arm/boot/dts/rk3288-tinker.dtsi
@@ -491,10 +491,14 @@ &tsadc {
};
&uart0 {
+ dmas = <&dmac_peri 1>, <&dmac_peri 2>;
+ dma-names = "tx", "rx";
status = "okay";
};
&uart1 {
+ dmas = <&dmac_peri 3>, <&dmac_peri 4>;
+ dma-names = "tx", "rx";
status = "okay";
};
@@ -503,10 +507,14 @@ &uart2 {
};
&uart3 {
+ dmas = <&dmac_peri 7>, <&dmac_peri 8>;
+ dma-names = "tx", "rx";
status = "okay";
};
&uart4 {
+ dmas = <&dmac_peri 9>, <&dmac_peri 10>;
+ dma-names = "tx", "rx";
status = "okay";
};
--
2.25.1
next reply other threads:[~2020-03-15 3:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-14 14:23 Katsuhiro Suzuki [this message]
2020-03-14 15:09 ` [PATCH] ARM: dts: rockchip: use DMA channels for UARTs of TinkerBoard Heiko Stübner
2020-03-15 9:44 ` Katsuhiro Suzuki
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200314142327.25568-1-katsuhiro@katsuster.net \
--to=katsuhiro@katsuster.net \
--cc=heiko@sntech.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rockchip@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).