[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20190601132600.27427-36-sashal@kernel.org>
Date: Sat, 1 Jun 2019 09:25:40 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Andrey Smirnov <andrew.smirnov@...il.com>,
Angus Ainslie <angus@...ea.ca>,
Chris Healy <cphealy@...il.com>,
Lucas Stach <l.stach@...gutronix.de>,
Fabio Estevam <fabio.estevam@....com>,
Shawn Guo <shawnguo@...nel.org>,
linux-arm-kernel@...ts.infradead.org,
Sasha Levin <sashal@...nel.org>, devicetree@...r.kernel.org
Subject: [PATCH AUTOSEL 4.4 36/56] ARM: dts: imx6sx: Specify IMX6SX_CLK_IPG as "ipg" clock to SDMA
From: Andrey Smirnov <andrew.smirnov@...il.com>
[ Upstream commit 8979117765c19edc3b01cc0ef853537bf93eea4b ]
Since 25aaa75df1e6 SDMA driver uses clock rates of "ipg" and "ahb"
clock to determine if it needs to configure the IP block as operating
at 1:1 or 1:2 clock ratio (ACR bit in SDMAARM_CONFIG). Specifying both
clocks as IMX6SX_CLK_SDMA results in driver incorrectly thinking that
ratio is 1:1 which results in broken SDMA funtionality. Fix the code
to specify IMX6SX_CLK_IPG as "ipg" clock for SDMA, to avoid detecting
incorrect clock ratio.
Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
Cc: Angus Ainslie (Purism) <angus@...ea.ca>
Cc: Chris Healy <cphealy@...il.com>
Cc: Lucas Stach <l.stach@...gutronix.de>
Cc: Fabio Estevam <fabio.estevam@....com>
Cc: Shawn Guo <shawnguo@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Shawn Guo <shawnguo@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
arch/arm/boot/dts/imx6sx.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index 6963dff815dc8..5783eb8541ed9 100644
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -732,7 +732,7 @@
compatible = "fsl,imx6sx-sdma", "fsl,imx6q-sdma";
reg = <0x020ec000 0x4000>;
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX6SX_CLK_SDMA>,
+ clocks = <&clks IMX6SX_CLK_IPG>,
<&clks IMX6SX_CLK_SDMA>;
clock-names = "ipg", "ahb";
#dma-cells = <3>;
--
2.20.1
Powered by blists - more mailing lists