All of lore.kernel.org
 help / color / mirror / Atom feed
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Alex Riesen <alexander.riesen@cetitec.com>,
	Kieran Bingham <kieran.bingham@ideasonboard.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	driverdevel <devel@driverdev.osuosl.org>,
	Linux Media Mailing List <linux-media@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@vger.kernel.org>,
	Linux-Renesas <linux-renesas-soc@vger.kernel.org>
Subject: Re: [PATCH 8/8] arm64: dts: renesas: salvator: add a connection from adv748x codec (HDMI input) to the R-Car SoC
Date: Mon, 2 Mar 2020 13:28:13 +0100	[thread overview]
Message-ID: <CAMuHMdV9urx-6N4tiaPdkssa6Wu-9HSB4VY-rvCu+8JpfZcBfA@mail.gmail.com> (raw)
In-Reply-To: <20200113141556.GI3606@pflmari>

Hi Alex,

Thanks for your patch!

On Mon, Jan 13, 2020 at 3:24 PM Alex Riesen
<alexander.riesen@cetitec.com> wrote:
> Not sure if all variants of the Salvator board have the HDMI decoder
> chip (the ADV7482) connected to the SSI4 on R-Car SoC, as it is on
> Salvator-X ES1, so the the ADV7482 endpoint and connection definitions
> are placed in the board file.

Both Salvator-X and Salvator-XS have SSI4 wired to the ADV7482.

> I do assume though that all Salvator variants have the CLK_C clock line
> hard-wired to the ADV7482 HDMI decoder, and remove it from the list of
> clocks provided by the R-Car sound system.

Yes, both Salvator-X and Salvator-XS have it wired that way.  But please
see below.

> The I2C wiring is also likely to persist across the variants (similar
> to ak4613, connected to the same interface), so that is in the common
> file.
>
> Signed-off-by: Alexander Riesen <alexander.riesen@cetitec.com>

Below are my comments w.r.t. the board-specific wiring.
I'll defer to the multimedia people for commenting on the audio parts.

BTW, what is the status of the other patches in this series?

> --- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
> +++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
> @@ -322,6 +322,10 @@
>         clock-frequency = <22579200>;
>  };
>
> +&audio_clk_c {
> +       clock-frequency = <12288000>;
> +};

Does the ADV7482 always generate a 12.288 MHz clock signal?
Or is this programmable?

> +
>  &avb {
>         pinctrl-0 = <&avb_pins>;
>         pinctrl-names = "default";
> @@ -471,12 +475,14 @@
>
>                 #address-cells = <1>;
>                 #size-cells = <0>;
> +               #sound-dai-cells = <0>;
>
>                 interrupt-parent = <&gpio6>;
>                 interrupt-names = "intrq1", "intrq2";
>                 interrupts = <30 IRQ_TYPE_LEVEL_LOW>,
>                              <31 IRQ_TYPE_LEVEL_LOW>;
> -
> +               clocks = <&rcar_sound 3>, <&audio_clk_c>;
> +               clock-names = "clk-hdmi-video", "clk-hdmi-i2s-mclk";

The above declares the Audio CLK C to be a clock input of the ADV7482, while
it is an output.
Furthermore, the DT bindings do not document that clocks can be specified.

>                 port@7 {
>                         reg = <7>;
>
> @@ -512,6 +518,14 @@
>                                 remote-endpoint = <&csi20_in>;
>                         };
>                 };
> +
> +               port@c {
> +                       reg = <12>;
> +
> +                       adv7482_i2s: endpoint {
> +                               /* remote-endpoint defined in the board file */
> +                       };
> +               };
>         };
>
>         csa_vdd: adc@7c {
> @@ -686,7 +700,8 @@
>         };
>
>         sound_pins: sound {
> -               groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
> +               groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a",
> +                        "ssi4_data";

Missing "ss4_ctrl", for the SCK4 and WS4 pins.

>                 function = "ssi";
>         };
>
> @@ -735,8 +750,8 @@
>         pinctrl-0 = <&sound_pins &sound_clk_pins>;
>         pinctrl-names = "default";
>
> -       /* Single DAI */
> -       #sound-dai-cells = <0>;
> +       /* multi DAI */
> +       #sound-dai-cells = <1>;
>
>         /* audio_clkout0/1/2/3 */
>         #clock-cells = <1>;
> @@ -760,8 +775,18 @@
>                  <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
>                  <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
>                  <&audio_clk_a>, <&cs2000>,
> -                <&audio_clk_c>,

Why remove it? This is the list of clock inputs, not outputs.

>                  <&cpg CPG_CORE CPG_AUDIO_CLK_I>;
> +       clock-names = "ssi-all",
> +                     "ssi.9", "ssi.8", "ssi.7", "ssi.6",
> +                     "ssi.5", "ssi.4", "ssi.3", "ssi.2",
> +                     "ssi.1", "ssi.0",
> +                     "src.9", "src.8", "src.7", "src.6",
> +                     "src.5", "src.4", "src.3", "src.2",
> +                     "src.1", "src.0",
> +                     "mix.1", "mix.0",
> +                     "ctu.1", "ctu.0",
> +                     "dvc.0", "dvc.1",
> +                     "clk_a", "clk_b", "clk_i";
>
>         ports {
>                 #address-cells = <1>;
> --
> 2.24.1.508.g91d2dafee0

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

WARNING: multiple messages have this Message-ID
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Alex Riesen <alexander.riesen@cetitec.com>,
	 Kieran Bingham <kieran.bingham@ideasonboard.com>,
	 Mauro Carvalho Chehab <mchehab@kernel.org>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	 Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Rob Herring <robh+dt@kernel.org>,
	 Mark Rutland <mark.rutland@arm.com>,
	driverdevel <devel@driverdev.osuosl.org>,
	 Linux Media Mailing List <linux-media@vger.kernel.org>,
	 Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	 "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	 Linux-Renesas <linux-renesas-soc@vger.kernel.org>
Subject: Re: [PATCH 8/8] arm64: dts: renesas: salvator: add a connection from adv748x codec (HDMI input) to the R-Car SoC
Date: Mon, 2 Mar 2020 13:28:13 +0100	[thread overview]
Message-ID: <CAMuHMdV9urx-6N4tiaPdkssa6Wu-9HSB4VY-rvCu+8JpfZcBfA@mail.gmail.com> (raw)
In-Reply-To: <20200113141556.GI3606@pflmari>

Hi Alex,

Thanks for your patch!

On Mon, Jan 13, 2020 at 3:24 PM Alex Riesen
<alexander.riesen@cetitec.com> wrote:
> Not sure if all variants of the Salvator board have the HDMI decoder
> chip (the ADV7482) connected to the SSI4 on R-Car SoC, as it is on
> Salvator-X ES1, so the the ADV7482 endpoint and connection definitions
> are placed in the board file.

Both Salvator-X and Salvator-XS have SSI4 wired to the ADV7482.

> I do assume though that all Salvator variants have the CLK_C clock line
> hard-wired to the ADV7482 HDMI decoder, and remove it from the list of
> clocks provided by the R-Car sound system.

Yes, both Salvator-X and Salvator-XS have it wired that way.  But please
see below.

> The I2C wiring is also likely to persist across the variants (similar
> to ak4613, connected to the same interface), so that is in the common
> file.
>
> Signed-off-by: Alexander Riesen <alexander.riesen@cetitec.com>

Below are my comments w.r.t. the board-specific wiring.
I'll defer to the multimedia people for commenting on the audio parts.

BTW, what is the status of the other patches in this series?

> --- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
> +++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
> @@ -322,6 +322,10 @@
>         clock-frequency = <22579200>;
>  };
>
> +&audio_clk_c {
> +       clock-frequency = <12288000>;
> +};

Does the ADV7482 always generate a 12.288 MHz clock signal?
Or is this programmable?

> +
>  &avb {
>         pinctrl-0 = <&avb_pins>;
>         pinctrl-names = "default";
> @@ -471,12 +475,14 @@
>
>                 #address-cells = <1>;
>                 #size-cells = <0>;
> +               #sound-dai-cells = <0>;
>
>                 interrupt-parent = <&gpio6>;
>                 interrupt-names = "intrq1", "intrq2";
>                 interrupts = <30 IRQ_TYPE_LEVEL_LOW>,
>                              <31 IRQ_TYPE_LEVEL_LOW>;
> -
> +               clocks = <&rcar_sound 3>, <&audio_clk_c>;
> +               clock-names = "clk-hdmi-video", "clk-hdmi-i2s-mclk";

The above declares the Audio CLK C to be a clock input of the ADV7482, while
it is an output.
Furthermore, the DT bindings do not document that clocks can be specified.

>                 port@7 {
>                         reg = <7>;
>
> @@ -512,6 +518,14 @@
>                                 remote-endpoint = <&csi20_in>;
>                         };
>                 };
> +
> +               port@c {
> +                       reg = <12>;
> +
> +                       adv7482_i2s: endpoint {
> +                               /* remote-endpoint defined in the board file */
> +                       };
> +               };
>         };
>
>         csa_vdd: adc@7c {
> @@ -686,7 +700,8 @@
>         };
>
>         sound_pins: sound {
> -               groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
> +               groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a",
> +                        "ssi4_data";

Missing "ss4_ctrl", for the SCK4 and WS4 pins.

>                 function = "ssi";
>         };
>
> @@ -735,8 +750,8 @@
>         pinctrl-0 = <&sound_pins &sound_clk_pins>;
>         pinctrl-names = "default";
>
> -       /* Single DAI */
> -       #sound-dai-cells = <0>;
> +       /* multi DAI */
> +       #sound-dai-cells = <1>;
>
>         /* audio_clkout0/1/2/3 */
>         #clock-cells = <1>;
> @@ -760,8 +775,18 @@
>                  <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
>                  <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
>                  <&audio_clk_a>, <&cs2000>,
> -                <&audio_clk_c>,

Why remove it? This is the list of clock inputs, not outputs.

>                  <&cpg CPG_CORE CPG_AUDIO_CLK_I>;
> +       clock-names = "ssi-all",
> +                     "ssi.9", "ssi.8", "ssi.7", "ssi.6",
> +                     "ssi.5", "ssi.4", "ssi.3", "ssi.2",
> +                     "ssi.1", "ssi.0",
> +                     "src.9", "src.8", "src.7", "src.6",
> +                     "src.5", "src.4", "src.3", "src.2",
> +                     "src.1", "src.0",
> +                     "mix.1", "mix.0",
> +                     "ctu.1", "ctu.0",
> +                     "dvc.0", "dvc.1",
> +                     "clk_a", "clk_b", "clk_i";
>
>         ports {
>                 #address-cells = <1>;
> --
> 2.24.1.508.g91d2dafee0

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
_______________________________________________
devel mailing list
devel@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel

  reply	other threads:[~2020-03-02 12:28 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-13 14:19 [PATCH 0/8] media: i2c: adv748x: add support for HDMI audio Alex Riesen
2020-01-13 14:19 ` Alex Riesen
2020-01-13 14:15 ` [PATCH 1/8] media: adv748x: add a device-specific wrapper for register block read Alex Riesen
2020-01-13 14:15   ` Alex Riesen
2020-01-13 14:15 ` [PATCH 2/8] media: adv748x: add audio mute control and output selection ioctls Alex Riesen
2020-01-13 14:15   ` Alex Riesen
2020-03-13  8:16   ` Hans Verkuil
2020-03-13  8:16     ` Hans Verkuil
2020-03-13 10:26     ` Alex Riesen
2020-03-13 10:26       ` Alex Riesen
2020-03-13 10:52       ` Hans Verkuil
2020-03-13 10:52         ` Hans Verkuil
2020-03-13 11:00         ` Alex Riesen
2020-03-13 11:00           ` Alex Riesen
2020-01-13 14:15 ` [PATCH 3/8] media: adv748x: add log_status ioctl Alex Riesen
2020-01-13 14:15   ` Alex Riesen
2020-01-13 14:15 ` [PATCH 4/8] media: adv748x: reserve space for the audio (I2S) port in the driver structures Alex Riesen
2020-01-13 14:15   ` Alex Riesen
2020-01-13 14:15 ` [PATCH 5/8] media: adv748x: add an ASoC DAI definition to the driver Alex Riesen
2020-01-13 14:15   ` Alex Riesen
2020-01-13 14:15 ` [PATCH 6/8] media: adv748x: reduce amount of code for bitwise modification of device registers Alex Riesen
2020-01-13 14:15   ` Alex Riesen
2020-01-13 14:15 ` [PATCH 7/8] dt-bindings: adv748x: add information about serial audio interface (I2S/TDM) Alex Riesen
2020-01-13 14:15   ` Alex Riesen
2020-01-13 22:32   ` Rob Herring
2020-01-13 22:32     ` Rob Herring
2020-01-13 14:15 ` [PATCH 8/8] arm64: dts: renesas: salvator: add a connection from adv748x codec (HDMI input) to the R-Car SoC Alex Riesen
2020-01-13 14:15   ` Alex Riesen
2020-03-02 12:28   ` Geert Uytterhoeven [this message]
2020-03-02 12:28     ` Geert Uytterhoeven
2020-03-02 13:40     ` Alex Riesen
2020-03-02 13:40       ` Alex Riesen
2020-03-02 13:47       ` Geert Uytterhoeven
2020-03-02 13:47         ` Geert Uytterhoeven
2020-03-02 15:07         ` Alex Riesen
2020-03-02 15:07           ` Alex Riesen
2020-03-02 15:32           ` Geert Uytterhoeven
2020-03-02 15:32             ` Geert Uytterhoeven
2020-03-02 16:09             ` Alex Riesen
2020-03-02 16:09               ` Alex Riesen
2020-03-02 16:13               ` Geert Uytterhoeven
2020-03-02 16:13                 ` Geert Uytterhoeven
2020-03-05 14:36                 ` Alex Riesen
2020-03-05 14:36                   ` Alex Riesen
2020-03-06 12:21                   ` Geert Uytterhoeven
2020-03-06 12:21                     ` Geert Uytterhoeven
2020-03-06 13:16                   ` Laurent Pinchart
2020-03-06 13:16                     ` Laurent Pinchart
2020-03-06 13:41                     ` Alex Riesen
2020-03-06 13:41                       ` Alex Riesen
2020-03-06 13:45                       ` Laurent Pinchart
2020-03-06 13:45                         ` Laurent Pinchart
2020-03-09  1:31                         ` Kuninori Morimoto
2020-03-09  1:31                           ` Kuninori Morimoto
2020-03-09 11:09                           ` Alex Riesen
2020-03-09 11:09                             ` Alex Riesen
2020-03-10  1:07                             ` Kuninori Morimoto
2020-03-10  1:07                               ` Kuninori Morimoto
2020-03-10  8:17                               ` Alex Riesen
2020-03-10  8:17                                 ` Alex Riesen
2020-03-10 10:39                                 ` Laurent Pinchart
2020-03-10 10:39                                   ` Laurent Pinchart

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAMuHMdV9urx-6N4tiaPdkssa6Wu-9HSB4VY-rvCu+8JpfZcBfA@mail.gmail.com \
    --to=geert@linux-m68k.org \
    --cc=alexander.riesen@cetitec.com \
    --cc=devel@driverdev.osuosl.org \
    --cc=devicetree@vger.kernel.org \
    --cc=hverkuil-cisco@xs4all.nl \
    --cc=kieran.bingham@ideasonboard.com \
    --cc=laurent.pinchart@ideasonboard.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-media@vger.kernel.org \
    --cc=linux-renesas-soc@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=mchehab@kernel.org \
    --cc=robh+dt@kernel.org \
    --subject='Re: [PATCH 8/8] arm64: dts: renesas: salvator: add a connection from adv748x codec (HDMI input) to the R-Car SoC' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.