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Date: Tue, 13 Oct 2020 12:15:52 +0000
From: "Viorel Suman (OSS)" <viorel.suman@....nxp.com>
To: Rob Herring <robh@...nel.org>,
"Viorel Suman (OSS)" <viorel.suman@....nxp.com>
CC: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>, Timur Tabi <timur@...nel.org>,
Nicolin Chen <nicoleotsuka@...il.com>,
Xiubo Li <Xiubo.Lee@...il.com>,
Fabio Estevam <festevam@...il.com>,
Shengjiu Wang <shengjiu.wang@...il.com>,
Philipp Zabel <p.zabel@...gutronix.de>,
Cosmin-Gabriel Samoila <cosmin.samoila@....com>,
Matthias Schiffer <matthias.schiffer@...tq-group.com>,
"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
dl-linux-imx <linux-imx@....com>,
Viorel Suman <viorel.suman@...il.com>
Subject: RE: [PATCH v3 2/2] ASoC: dt-bindings: fsl_xcvr: Add document for XCVR
Hi Rob,
Thank you for review, fixed in V4.
/Viorel
> -----Original Message-----
> From: Rob Herring [mailto:robh@...nel.org]
> Sent: Tuesday, October 6, 2020 9:35 PM
> To: Viorel Suman (OSS) <viorel.suman@....nxp.com>
> Cc: Liam Girdwood <lgirdwood@...il.com>; Mark Brown
> <broonie@...nel.org>; Jaroslav Kysela <perex@...ex.cz>; Takashi Iwai
> <tiwai@...e.com>; Timur Tabi <timur@...nel.org>; Nicolin Chen
> <nicoleotsuka@...il.com>; Xiubo Li <Xiubo.Lee@...il.com>; Fabio Estevam
> <festevam@...il.com>; Shengjiu Wang <shengjiu.wang@...il.com>; Philipp
> Zabel <p.zabel@...gutronix.de>; Cosmin-Gabriel Samoila
> <cosmin.samoila@....com>; Viorel Suman <viorel.suman@....com>; Matthias
> Schiffer <matthias.schiffer@...tq-group.com>; alsa-devel@...a-project.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linuxppc-
> dev@...ts.ozlabs.org; dl-linux-imx <linux-imx@....com>; Viorel Suman
> <viorel.suman@...il.com>
> Subject: Re: [PATCH v3 2/2] ASoC: dt-bindings: fsl_xcvr: Add document for XCVR
>
> On Tue, Sep 29, 2020 at 12:19:27PM +0300, Viorel Suman (OSS) wrote:
> > From: Viorel Suman <viorel.suman@....com>
> >
> > XCVR (Audio Transceiver) is a new IP module found on i.MX8MP.
> >
> > Signed-off-by: Viorel Suman <viorel.suman@....com>
> > ---
> > .../devicetree/bindings/sound/fsl,xcvr.yaml | 103
> +++++++++++++++++++++
> > 1 file changed, 103 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/sound/fsl,xcvr.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/sound/fsl,xcvr.yaml
> > b/Documentation/devicetree/bindings/sound/fsl,xcvr.yaml
> > new file mode 100644
> > index 00000000..8abab2d
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/sound/fsl,xcvr.yaml
> > @@ -0,0 +1,103 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/sound/fsl,xcvr.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: NXP Audio Transceiver (XCVR) Controller
> > +
> > +maintainers:
> > + - Viorel Suman <viorel.suman@....com>
> > +
> > +properties:
> > + $nodename:
> > + pattern: "^xcvr@.*"
> > +
> > + compatible:
> > + const: fsl,imx8mp-xcvr
> > +
> > + reg:
> > + items:
> > + - description: 20K RAM for code and data
> > + - description: registers space
> > + - description: RX FIFO address
> > + - description: TX FIFO address
> > +
> > + reg-names:
> > + items:
> > + - const: ram
> > + - const: regs
> > + - const: rxfifo
> > + - const: txfifo
> > +
> > + interrupts:
> > + maxItems: 1
> > +
> > + clocks:
> > + items:
> > + - description: Peripheral clock
> > + - description: PHY clock
> > + - description: SPBA clock
> > + - description: PLL clock
> > +
> > + clock-names:
> > + items:
> > + - const: ipg
> > + - const: phy
> > + - const: spba
> > + - const: pll_ipg
> > +
> > + dmas:
> > + maxItems: 2
> > +
> > + dma-names:
> > + items:
> > + - const: rx
> > + - const: tx
> > +
> > + firmware-name:
> > + $ref: /schemas/types.yaml#/definitions/string
> > + const: imx/xcvr/xcvr-imx8mp.bin
> > + description: |
> > + Should contain the name of the default firmware image
> > + file located on the firmware search path
>
> We generally only have this if the name/path can't be fixed (per
> compatible) in the driver. Given you only have 1 possible value, that doesn't
> seem to be the case here.
>
> > +
> > + resets:
> > + maxItems: 1
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - reg-names
> > + - interrupts
> > + - clocks
> > + - clock-names
> > + - dmas
> > + - dma-names
> > + - firmware-name
> > + - resets
>
> additionalProperties: false
>
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/interrupt-controller/arm-gic.h>
> > + #include <dt-bindings/clock/imx8mp-clock.h>
> > + #include <dt-bindings/reset/imx8mp-reset.h>
> > +
> > + xcvr: xcvr@...c0000 {
> > + compatible = "fsl,imx8mp-xcvr";
> > + reg = <0x30cc0000 0x800>,
> > + <0x30cc0800 0x400>,
> > + <0x30cc0c00 0x080>,
> > + <0x30cc0e00 0x080>;
> > + reg-names = "ram", "regs", "rxfifo", "txfifo";
> > + interrupts = <0x0 128 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_IPG>,
> > + <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_PHY>,
> > + <&audiomix_clk IMX8MP_CLK_AUDIOMIX_SPBA2_ROOT>,
> > + <&audiomix_clk IMX8MP_CLK_AUDIOMIX_AUDPLL_ROOT>;
> > + clock-names = "ipg", "phy", "spba", "pll_ipg";
> > + dmas = <&sdma2 30 2 0>, <&sdma2 31 2 0>;
> > + dma-names = "rx", "tx";
> > + firmware-name = "imx/xcvr/xcvr-imx8mp.bin";
> > + resets = <&audiomix_reset 0>;
> > + };
> > --
> > 2.7.4
> >
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