Re: [PATCH v4 4/6] ARM: dts: r8a7794: add Audio-DMAC support
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: 2016-08-08 13:14:03
Also in:
linux-arm-kernel, linux-renesas-soc
Hi Sergei, On Wed, Jul 27, 2016 at 11:02 PM, Sergei Shtylyov [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Describe Audio-DMAC in the R8A7794 device tree. This patch is loosely based on the commit 8994fff67761 ("ARM: shmobile: r8a7791: Add Audio DMAC devices to DT"). Signed-off-by: Sergei Shtylyov <redacted> --- Changes in version 4: - refreshed the patch. Changes in version 3: - refreshed the patch. arch/arm/boot/dts/r8a7794.dtsi | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) Index: renesas/arch/arm/boot/dts/r8a7794.dtsi ===================================================================--- renesas.orig/arch/arm/boot/dts/r8a7794.dtsi +++ renesas/arch/arm/boot/dts/r8a7794.dtsi@@ -296,6 +296,34 @@ dma-channels = <15>; }; + audma0: dma-controller@ec700000 { + compatible = "renesas,dmac-r8a7794", "renesas,rcar-dmac"; + reg = <0 0xec700000 0 0x10000>; + interrupts = <GIC_SPI 346 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 320 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 322 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 323 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 324 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 325 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 326 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 327 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 328 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 329 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 330 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 331 IRQ_TYPE_LEVEL_HIGH + GIC_SPI 332 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "error", + "ch0", "ch1", "ch2", "ch3", "ch4", "ch5", + "ch6", "ch7", "ch8", "ch9", "ch10", "ch11", + "ch12"; + clocks = <&mstp5_clks R8A7794_CLK_AUDIO_DMAC0>; + clock-names = "fck"; + power-domains = <&cpg_clocks>; + #dma-cells = <1>; + dma-channels = <13>; + };
According to R-Car-Gen2-common-v2.00.pdf (Audio-DMAC and INTC-SYS
chapters), V2H has only 2 audio DMA channels, not 13.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds