This series adds audio support for the Renesas RZ/G3E SoC and enables
it on the SMARC EVK board with the Dialog DA7212 codec.
The RZ/G3E audio subsystem is based on R-Car Sound IP but has several
differences requiring dedicated handling:
- SSI operates exclusively in BUSIF mode (no PIO)
- 2 BUSIF channels per SSI instead of 4/8 on R-Car
- Different register offsets for SCU, ADG, SSIU, and SSI
- Per-SSI ADG and SSIF supply clocks
- DMA ACK signal routing through ICU
This series includes:
- Clock driver support for audio clocks and resets
- DT bindings update for DMA ACK signal field
- IRQ chip extension for DMA ACK signal routing
- RZ-DMAC driver updates for ACK signal support
- R-Car Sound driver updates for RZ/G3E support
- System suspend/resume support
- Device tree nodes for RZ/G3E SMARC EVK
Note: patch 06/22 depends on [1]. As this patch will propably be routed
through the DMA tree independently, the rest of the series can be reviewed
and the remaining patches applied without this dependency being resolved
first.
Audio configuration on SMARC EVK:
- Codec: Dialog DA7212 on I2C1
- Playback: SSI3 -> SRC1 -> DVC1
- Capture: SSI4 -> SRC0 -> DVC0
- MCLK: 12.288MHz from Versa3 clock generator
- Format: I2S, RZ/G3E Sound as clock master
- SSI4 shares clock pins with SSI3 (shared-pin)
Tested on RZ/G3E SMARC EVK with:
- Playback to headphone output
- Capture from line-in (AUX) input and/or Mic
- Full duplex operation
- System suspend/resume
[1] https://lore.kernel.org/all/20260126103155.2644586-1-claudiu.beznea.uj@bp.renesas.com/
John Madieu (22):
dt-bindings: clock: renesas: Add audio clock inputs for RZ/V2H family
arm64: dts: renesas: rzv2h: Add audio clock inputs
clk: renesas: r9a09g047: Add audio clock and reset support
dt-bindings: dma: renesas,rz-dmac: Document optional DMA ACK cell
irqchip/renesas-rzv2h: Add DMA ACK signal routing support
dma: sh: rz-dmac: Add DMA ACK signal routing support
ASoC: dt-bindings: renesas,rsnd: Add RZ/G3E support
ASoC: rsnd: Add reset controller support to rsnd_mod
ASoC: rsnd: Add RZ/G3E SoC probing and register map
ASoC: rsnd: Add DMA support infrastructure for RZ/G3E
ASoC: rsnd: ssui: Add RZ/G3E SSIU BUSIF support
ASoC: rsnd: Update SSI for RZ/G3E support
ASoC: rsnd: Add ADG reset support for RZ/G3E
ASoC: rsnd: adg: Add per-SSI ADG and SSIF supply clock management
ASoC: rsnd: src: Add SRC reset and clock support for RZ/G3E
ASoC: rsnd: Export module getters for PM support
ASoC: rsnd: Add system suspend/resume support
arm64: dts: renesas: r9a09g047: Add R-Car Sound support
arm64: dts: renesas: rzg3e-smarc-som: Add Versa3 clock generator
arm64: dts: renesas: rzg3e-smarc-som: Add I2C1 support
arm64: dts: renesas: rzg3e-smarc-som: add audio pinmux definitions
arm64: dts: renesas: r9a09g047e57-smarc: add DA7212 audio codec
support
.../bindings/clock/renesas,rzv2h-cpg.yaml | 10 +
.../bindings/dma/renesas,rz-dmac.yaml | 28 +-
.../bindings/sound/renesas,rsnd.yaml | 169 +++++-
arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 543 +++++++++++++++++-
.../boot/dts/renesas/r9a09g047e57-smarc.dts | 114 ++++
arch/arm64/boot/dts/renesas/r9a09g056.dtsi | 27 +-
arch/arm64/boot/dts/renesas/r9a09g057.dtsi | 27 +-
.../boot/dts/renesas/rzg3e-smarc-som.dtsi | 44 ++
drivers/clk/renesas/r9a09g047-cpg.c | 130 ++++-
drivers/dma/sh/rz-dmac.c | 40 +-
drivers/irqchip/irq-renesas-rzv2h.c | 36 ++
include/linux/irqchip/irq-renesas-rzv2h.h | 5 +
sound/soc/renesas/rcar/adg.c | 117 +++-
sound/soc/renesas/rcar/cmd.c | 2 +-
sound/soc/renesas/rcar/core.c | 128 ++++-
sound/soc/renesas/rcar/ctu.c | 2 +-
sound/soc/renesas/rcar/dma.c | 173 ++++--
sound/soc/renesas/rcar/dvc.c | 2 +-
sound/soc/renesas/rcar/gen.c | 184 ++++++
sound/soc/renesas/rcar/mix.c | 2 +-
sound/soc/renesas/rcar/rsnd.h | 39 ++
sound/soc/renesas/rcar/src.c | 45 +-
sound/soc/renesas/rcar/ssi.c | 40 +-
sound/soc/renesas/rcar/ssiu.c | 49 +-
24 files changed, 1855 insertions(+), 101 deletions(-)
--
2.25.1