lkml.org 
[lkml]   [2019]   [Jun]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 5.1 106/155] ARM: dts: imx50: Specify IMX5_CLK_IPG as "ahb" clock to SDMA
    Date
    [ Upstream commit b7b4fda2636296471e29b78c2aa9535d7bedb7a0 ]

    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 IMX5_CLK_SDMA results in driver incorrectly thinking that
    ratio is 1:1 which results in broken SDMA funtionality. Fix the code
    to specify IMX5_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/imx50.dtsi | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/arch/arm/boot/dts/imx50.dtsi b/arch/arm/boot/dts/imx50.dtsi
    index ee1e3e8bf4ec..4a68e30cc668 100644
    --- a/arch/arm/boot/dts/imx50.dtsi
    +++ b/arch/arm/boot/dts/imx50.dtsi
    @@ -411,7 +411,7 @@
    reg = <0x63fb0000 0x4000>;
    interrupts = <6>;
    clocks = <&clks IMX5_CLK_SDMA_GATE>,
    - <&clks IMX5_CLK_SDMA_GATE>;
    + <&clks IMX5_CLK_AHB>;
    clock-names = "ipg", "ahb";
    #dma-cells = <3>;
    fsl,sdma-ram-script-name = "imx/sdma/sdma-imx50.bin";
    --
    2.20.1


    \
     
     \ /
      Last update: 2019-06-13 18:01    [W:3.861 / U:0.308 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site