[PATCH] ARM: socfpga: fix uart DMA binding error
Dinh Nguyen
dinguyen at opensource.altera.com
Thu Feb 19 09:29:52 PST 2015
On Thu, 19 Feb 2015, Steffen Trumtrar wrote:
> socfpga.dtsi is missing the DMA channels for the uart nodes.
> This will produce the following errors:
>
> of_dma_request_slave_channel: dma-names property of node '/soc/serial0 at ffc02000' missing or empty
> ttyS0 - failed to request DMA
>
> Provide the correct DMA channels to fix this.
>
> Signed-off-by: Steffen Trumtrar <s.trumtrar at pengutronix.de>
> ---
> arch/arm/boot/dts/socfpga.dtsi | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
> index 252c3d1bda50..9d8760956752 100644
> --- a/arch/arm/boot/dts/socfpga.dtsi
> +++ b/arch/arm/boot/dts/socfpga.dtsi
> @@ -713,6 +713,9 @@
> reg-shift = <2>;
> reg-io-width = <4>;
> clocks = <&l4_sp_clk>;
> + dmas = <&pdma 28>,
> + <&pdma 29>;
> + dma-names = "tx", "rx";
> };
>
> uart1: serial1 at ffc03000 {
> @@ -722,6 +725,9 @@
> reg-shift = <2>;
> reg-io-width = <4>;
> clocks = <&l4_sp_clk>;
> + dmas = <&pdma 30>,
> + <&pdma 31>;
> + dma-names = "tx", "rx";
> };
>
> rst: rstmgr at ffd05000 {
> --
> 2.1.4
>
>
Applied to fixes.
BR,
Dinh
More information about the linux-arm-kernel
mailing list