lkml.org 
[lkml]   [2019]   [Jun]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH AUTOSEL 4.4 35/56] ARM: dts: imx6sx: Specify IMX6SX_CLK_IPG as "ahb" clock to SDMA
Date
From: Andrey Smirnov <andrew.smirnov@gmail.com>

[ Upstream commit cc839d0f8c284fcb7591780b568f13415bbb737c ]

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 IMX6SL_CLK_SDMA results in driver incorrectly thinking that
ratio is 1:1 which results in broken SDMA funtionality. Fix the code
to specify IMX6SL_CLK_AHB as "ahb" clock for SDMA, to avoid detecting
incorrect clock ratio.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/imx6sl.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index d8ba99f1d87ba..ac820dfef9774 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -657,7 +657,7 @@
reg = <0x020ec000 0x4000>;
interrupts = <0 2 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6SL_CLK_SDMA>,
- <&clks IMX6SL_CLK_SDMA>;
+ <&clks IMX6SL_CLK_AHB>;
clock-names = "ipg", "ahb";
#dma-cells = <3>;
/* imx6sl reuses imx6q sdma firmware */
--
2.20.1
\
 
 \ /
  Last update: 2019-06-01 15:29    [W:0.169 / U:7.156 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site