From: Kedareswara rao Appana appana.durga.rao@xilinx.com
Zynqmp DMA driver expects two clocks (main clock and apb clock) For LPDDMA channels the two clocks are missing in the Dma node resulting probe failure.
xilinx-zynqmp-dma ffa80000.dma: main clock not found. xilinx-zynqmp-dma ffa80000.dma: Probing channel failed xilinx-zynqmp-dma: probe of ffa80000.dma failed with error -2
This patch fixes this issue.
Signed-off-by: Kedareswara rao Appana appanad@xilinx.com Signed-off-by: Michal Simek michal.simek@xilinx.com ---
arch/arm/dts/zynqmp.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm/dts/zynqmp.dtsi b/arch/arm/dts/zynqmp.dtsi index aeeccbf9e9d0..5b4fe0962e05 100644 --- a/arch/arm/dts/zynqmp.dtsi +++ b/arch/arm/dts/zynqmp.dtsi @@ -428,6 +428,7 @@ lpd_dma_chan1: dma@ffa80000 { status = "disabled"; compatible = "xlnx,zynqmp-dma-1.0"; + clock-names = "clk_main", "clk_apb"; reg = <0x0 0xffa80000 0x0 0x1000>; interrupt-parent = <&gic>; interrupts = <0 77 4>; @@ -440,6 +441,7 @@ lpd_dma_chan2: dma@ffa90000 { status = "disabled"; compatible = "xlnx,zynqmp-dma-1.0"; + clock-names = "clk_main", "clk_apb"; reg = <0x0 0xffa90000 0x0 0x1000>; interrupt-parent = <&gic>; interrupts = <0 78 4>; @@ -452,6 +454,7 @@ lpd_dma_chan3: dma@ffaa0000 { status = "disabled"; compatible = "xlnx,zynqmp-dma-1.0"; + clock-names = "clk_main", "clk_apb"; reg = <0x0 0xffaa0000 0x0 0x1000>; interrupt-parent = <&gic>; interrupts = <0 79 4>; @@ -464,6 +467,7 @@ lpd_dma_chan4: dma@ffab0000 { status = "disabled"; compatible = "xlnx,zynqmp-dma-1.0"; + clock-names = "clk_main", "clk_apb"; reg = <0x0 0xffab0000 0x0 0x1000>; interrupt-parent = <&gic>; interrupts = <0 80 4>; @@ -476,6 +480,7 @@ lpd_dma_chan5: dma@ffac0000 { status = "disabled"; compatible = "xlnx,zynqmp-dma-1.0"; + clock-names = "clk_main", "clk_apb"; reg = <0x0 0xffac0000 0x0 0x1000>; interrupt-parent = <&gic>; interrupts = <0 81 4>; @@ -488,6 +493,7 @@ lpd_dma_chan6: dma@ffad0000 { status = "disabled"; compatible = "xlnx,zynqmp-dma-1.0"; + clock-names = "clk_main", "clk_apb"; reg = <0x0 0xffad0000 0x0 0x1000>; interrupt-parent = <&gic>; interrupts = <0 82 4>; @@ -500,6 +506,7 @@ lpd_dma_chan7: dma@ffae0000 { status = "disabled"; compatible = "xlnx,zynqmp-dma-1.0"; + clock-names = "clk_main", "clk_apb"; reg = <0x0 0xffae0000 0x0 0x1000>; interrupt-parent = <&gic>; interrupts = <0 83 4>; @@ -512,6 +519,7 @@ lpd_dma_chan8: dma@ffaf0000 { status = "disabled"; compatible = "xlnx,zynqmp-dma-1.0"; + clock-names = "clk_main", "clk_apb"; reg = <0x0 0xffaf0000 0x0 0x1000>; interrupt-parent = <&gic>; interrupts = <0 84 4>;