| Message ID | 20241108104958.2931943-25-claudiu.beznea.uj@bp.renesas.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | Add audio support for the Renesas RZ/G3S SoC | expand |
Hi Claudiu, Thanks for the patch. > -----Original Message----- > From: Claudiu <claudiu.beznea@tuxon.dev> > Sent: 08 November 2024 10:50 > Subject: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable SSI3 > > From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> > > Enable SSI3. > > Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> > --- > > Changes in v2: > - none > > arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 26 ++++++++++++++++++++ > 1 file changed, 26 insertions(+) > > diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg3s- > smarc.dtsi > index 4aa99814b808..6dd439e68bd4 100644 > --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > @@ -64,6 +64,11 @@ vccq_sdhi1: regulator-vccq-sdhi1 { > }; > }; > &audio_clk1 { assigned-clocks = <&versa3 xx>; clock-frequency = <11289600>; }; Maybe add audio_clk1, so that it described properly in clock tree?? Cheers, Biju > +&audio_clk2 { > + clock-frequency = <12288000>; > + status = "okay"; > +}; > + > &i2c0 { > status = "okay"; > > @@ -94,6 +99,11 @@ da7212: codec@1a { > }; > > &pinctrl { > + audio_clock_pins: audio-clock { > + pins = "AUDIO_CLK1", "AUDIO_CLK2"; > + input-enable; > + }; > + > key-1-gpio-hog { > gpio-hog; > gpios = <RZG2L_GPIO(18, 0) GPIO_ACTIVE_LOW>; @@ -151,6 +161,13 @@ cd { > pinmux = <RZG2L_PORT_PINMUX(0, 2, 1)>; /* SD1_CD */ > }; > }; > + > + ssi3_pins: ssi3 { > + pinmux = <RZG2L_PORT_PINMUX(18, 2, 8)>, /* BCK */ > + <RZG2L_PORT_PINMUX(18, 3, 8)>, /* RCK */ > + <RZG2L_PORT_PINMUX(18, 4, 8)>, /* TXD */ > + <RZG2L_PORT_PINMUX(18, 5, 8)>; /* RXD */ > + }; > }; > > &scif0 { > @@ -171,3 +188,12 @@ &sdhi1 { > max-frequency = <125000000>; > status = "okay"; > }; > + > +&ssi3 { > + clocks = <&cpg CPG_MOD R9A08G045_SSI3_PCLK2>, > + <&cpg CPG_MOD R9A08G045_SSI3_PCLK_SFR>, > + <&versa3 2>, <&audio_clk2>; > + pinctrl-names = "default"; > + pinctrl-0 = <&ssi3_pins>, <&audio_clock_pins>; > + status = "okay"; > +}; > -- > 2.39.2
Hi, Biju, On 10.11.2024 10:54, Biju Das wrote: > Hi Claudiu, > > Thanks for the patch. > > >> -----Original Message----- >> From: Claudiu <claudiu.beznea@tuxon.dev> >> Sent: 08 November 2024 10:50 >> Subject: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable SSI3 >> >> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> >> >> Enable SSI3. >> >> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> >> --- >> >> Changes in v2: >> - none >> >> arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 26 ++++++++++++++++++++ >> 1 file changed, 26 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg3s- >> smarc.dtsi >> index 4aa99814b808..6dd439e68bd4 100644 >> --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi >> +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi >> @@ -64,6 +64,11 @@ vccq_sdhi1: regulator-vccq-sdhi1 { >> }; >> }; >> > > &audio_clk1 { > assigned-clocks = <&versa3 xx>; > clock-frequency = <11289600>; > }; audio_clk1 node is in the RZ/G3S dtsi to keep the compilation happy. For this board the audio clock1 for the SSI 3 is from <&versa3 2>. If we fill in the audio_clk1 here it will be useless, there will be no consumers for it and it is not available on board. Thank you, Claudiu Beznea > > Maybe add audio_clk1, so that it described properly in clock tree?? > > Cheers, > Biju > >> +&audio_clk2 { >> + clock-frequency = <12288000>; >> + status = "okay"; >> +}; >> + >> &i2c0 { >> status = "okay"; >> >> @@ -94,6 +99,11 @@ da7212: codec@1a { >> }; >> >> &pinctrl { >> + audio_clock_pins: audio-clock { >> + pins = "AUDIO_CLK1", "AUDIO_CLK2"; >> + input-enable; >> + }; >> + >> key-1-gpio-hog { >> gpio-hog; >> gpios = <RZG2L_GPIO(18, 0) GPIO_ACTIVE_LOW>; @@ -151,6 +161,13 @@ cd { >> pinmux = <RZG2L_PORT_PINMUX(0, 2, 1)>; /* SD1_CD */ >> }; >> }; >> + >> + ssi3_pins: ssi3 { >> + pinmux = <RZG2L_PORT_PINMUX(18, 2, 8)>, /* BCK */ >> + <RZG2L_PORT_PINMUX(18, 3, 8)>, /* RCK */ >> + <RZG2L_PORT_PINMUX(18, 4, 8)>, /* TXD */ >> + <RZG2L_PORT_PINMUX(18, 5, 8)>; /* RXD */ >> + }; >> }; >> >> &scif0 { >> @@ -171,3 +188,12 @@ &sdhi1 { >> max-frequency = <125000000>; >> status = "okay"; >> }; >> + >> +&ssi3 { >> + clocks = <&cpg CPG_MOD R9A08G045_SSI3_PCLK2>, >> + <&cpg CPG_MOD R9A08G045_SSI3_PCLK_SFR>, >> + <&versa3 2>, <&audio_clk2>; >> + pinctrl-names = "default"; >> + pinctrl-0 = <&ssi3_pins>, <&audio_clock_pins>; >> + status = "okay"; >> +}; >> -- >> 2.39.2 >
Hi Claudiu, > -----Original Message----- > From: Claudiu Beznea <claudiu.beznea@tuxon.dev> > Sent: 11 November 2024 11:20 > Subject: Re: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable SSI3 > > Hi, Biju, > > On 10.11.2024 10:54, Biju Das wrote: > > Hi Claudiu, > > > > Thanks for the patch. > > > > > >> -----Original Message----- > >> From: Claudiu <claudiu.beznea@tuxon.dev> > >> Sent: 08 November 2024 10:50 > >> Subject: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable > >> SSI3 > >> > >> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> > >> > >> Enable SSI3. > >> > >> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> > >> --- > >> > >> Changes in v2: > >> - none > >> > >> arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 26 > >> ++++++++++++++++++++ > >> 1 file changed, 26 insertions(+) > >> > >> diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > >> b/arch/arm64/boot/dts/renesas/rzg3s- > >> smarc.dtsi > >> index 4aa99814b808..6dd439e68bd4 100644 > >> --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > >> +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > >> @@ -64,6 +64,11 @@ vccq_sdhi1: regulator-vccq-sdhi1 { > >> }; > >> }; > >> > > > > &audio_clk1 { > > assigned-clocks = <&versa3 xx>; > > clock-frequency = <11289600>; > > }; > > audio_clk1 node is in the RZ/G3S dtsi to keep the compilation happy. > > For this board the audio clock1 for the SSI 3 is from <&versa3 2>. > > If we fill in the audio_clk1 here it will be useless, there will be no consumers for it and it is not > available on board. As per SSI IP needs external clks AUDIO_CLK1 and AUDIO_CLK2. AUDIO_CLK1 is provided by versa3 generator and AUDIO_CLK2 is provided by Crystal. Currently AUDIO_CLK2 it reports a frequency of 12288000 which is a multiple of 48kHz whereas for AUDIO_CLK1, it reports a frequency of 0. By defining the node, it will report as the value as 11289600 which is a multiple of 44.1kHZ. From the schematic we know that versa 3 is providing this clock and the audio_clk1 has a frequency of "11289600". Cheers, Biju > > Thank you, > Claudiu Beznea > > > > > Maybe add audio_clk1, so that it described properly in clock tree?? > > > > Cheers, > > Biju > > > >> +&audio_clk2 { > >> + clock-frequency = <12288000>; > >> + status = "okay"; > >> +}; > >> + > >> &i2c0 { > >> status = "okay"; > >> > >> @@ -94,6 +99,11 @@ da7212: codec@1a { }; > >> > >> &pinctrl { > >> + audio_clock_pins: audio-clock { > >> + pins = "AUDIO_CLK1", "AUDIO_CLK2"; > >> + input-enable; > >> + }; > >> + > >> key-1-gpio-hog { > >> gpio-hog; > >> gpios = <RZG2L_GPIO(18, 0) GPIO_ACTIVE_LOW>; @@ -151,6 +161,13 @@ cd { > >> pinmux = <RZG2L_PORT_PINMUX(0, 2, 1)>; /* SD1_CD */ > >> }; > >> }; > >> + > >> + ssi3_pins: ssi3 { > >> + pinmux = <RZG2L_PORT_PINMUX(18, 2, 8)>, /* BCK */ > >> + <RZG2L_PORT_PINMUX(18, 3, 8)>, /* RCK */ > >> + <RZG2L_PORT_PINMUX(18, 4, 8)>, /* TXD */ > >> + <RZG2L_PORT_PINMUX(18, 5, 8)>; /* RXD */ > >> + }; > >> }; > >> > >> &scif0 { > >> @@ -171,3 +188,12 @@ &sdhi1 { > >> max-frequency = <125000000>; > >> status = "okay"; > >> }; > >> + > >> +&ssi3 { > >> + clocks = <&cpg CPG_MOD R9A08G045_SSI3_PCLK2>, > >> + <&cpg CPG_MOD R9A08G045_SSI3_PCLK_SFR>, > >> + <&versa3 2>, <&audio_clk2>; > >> + pinctrl-names = "default"; > >> + pinctrl-0 = <&ssi3_pins>, <&audio_clock_pins>; > >> + status = "okay"; > >> +}; > >> -- > >> 2.39.2 > >
Hi, Biju, On 11.11.2024 13:30, Biju Das wrote: > Hi Claudiu, > >> -----Original Message----- >> From: Claudiu Beznea <claudiu.beznea@tuxon.dev> >> Sent: 11 November 2024 11:20 >> Subject: Re: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable SSI3 >> >> Hi, Biju, >> >> On 10.11.2024 10:54, Biju Das wrote: >>> Hi Claudiu, >>> >>> Thanks for the patch. >>> >>> >>>> -----Original Message----- >>>> From: Claudiu <claudiu.beznea@tuxon.dev> >>>> Sent: 08 November 2024 10:50 >>>> Subject: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable >>>> SSI3 >>>> >>>> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> >>>> >>>> Enable SSI3. >>>> >>>> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> >>>> --- >>>> >>>> Changes in v2: >>>> - none >>>> >>>> arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 26 >>>> ++++++++++++++++++++ >>>> 1 file changed, 26 insertions(+) >>>> >>>> diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi >>>> b/arch/arm64/boot/dts/renesas/rzg3s- >>>> smarc.dtsi >>>> index 4aa99814b808..6dd439e68bd4 100644 >>>> --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi >>>> +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi >>>> @@ -64,6 +64,11 @@ vccq_sdhi1: regulator-vccq-sdhi1 { >>>> }; >>>> }; >>>> >>> >>> &audio_clk1 { >>> assigned-clocks = <&versa3 xx>; >>> clock-frequency = <11289600>; >>> }; >> >> audio_clk1 node is in the RZ/G3S dtsi to keep the compilation happy. >> >> For this board the audio clock1 for the SSI 3 is from <&versa3 2>. >> >> If we fill in the audio_clk1 here it will be useless, there will be no consumers for it and it is not >> available on board. > > As per SSI IP needs external clks AUDIO_CLK1 and AUDIO_CLK2. > > AUDIO_CLK1 is provided by versa3 generator and > AUDIO_CLK2 is provided by Crystal. > > Currently AUDIO_CLK2 it reports a frequency of 12288000 which is a multiple of 48kHz > whereas for AUDIO_CLK1, it reports a frequency of 0. Why? You mentioned above that "AUDIO_CLK1 is provided by versa3 generator". It will report the frequency provided by the versa3 clock generator, isn't it? > By defining the node, it will report as the value as > 11289600 which is a multiple of 44.1kHZ. Defining the node as you proposed have no meaning as it will be anyway disabled (see the dtsi) and will appear nowhere as no driver will be probed for it. Defining it's frequency and enabling will have no meaning either for the SSI3, as the SSI3 is connected to <&versa3 2> (as of the binding proposed in this patch). > > From the schematic we know that versa 3 is providing this clock and the audio_clk1 has > a frequency of "11289600". <&versa3 2> connected to AUDIO_CLK1 pin is configured at 11.2896MHz in this series. See patch 22/25: + versa3: clock-generator@68 { + compatible = "renesas,5l35023"; + reg = <0x68>; + clocks = <&x3_clk>; + #clock-cells = <1>; + assigned-clocks = <&versa3 0>, + <&versa3 1>, + *<&versa3 2>*, + <&versa3 3>, + <&versa3 4>, + <&versa3 5>; + assigned-clock-rates = <24000000>, + <12288000>, + *<11289600>*, + <25000000>, + <100000000>, + <100000000>; + renesas,settings = [ + 80 00 11 19 4c 42 dc 2f 06 7d 20 1a 5f 1e f2 27 + 00 40 00 00 00 00 00 00 06 0c 19 02 3f f0 90 86 + a0 80 30 30 9c + ]; + }; Thank you, Claudiu Beznea > > Cheers, > Biju > > >> >> Thank you, >> Claudiu Beznea >> >>> >>> Maybe add audio_clk1, so that it described properly in clock tree?? >>> >>> Cheers, >>> Biju >>> >>>> +&audio_clk2 { >>>> + clock-frequency = <12288000>; >>>> + status = "okay"; >>>> +}; >>>> + >>>> &i2c0 { >>>> status = "okay"; >>>> >>>> @@ -94,6 +99,11 @@ da7212: codec@1a { }; >>>> >>>> &pinctrl { >>>> + audio_clock_pins: audio-clock { >>>> + pins = "AUDIO_CLK1", "AUDIO_CLK2"; >>>> + input-enable; >>>> + }; >>>> + >>>> key-1-gpio-hog { >>>> gpio-hog; >>>> gpios = <RZG2L_GPIO(18, 0) GPIO_ACTIVE_LOW>; @@ -151,6 +161,13 @@ cd { >>>> pinmux = <RZG2L_PORT_PINMUX(0, 2, 1)>; /* SD1_CD */ >>>> }; >>>> }; >>>> + >>>> + ssi3_pins: ssi3 { >>>> + pinmux = <RZG2L_PORT_PINMUX(18, 2, 8)>, /* BCK */ >>>> + <RZG2L_PORT_PINMUX(18, 3, 8)>, /* RCK */ >>>> + <RZG2L_PORT_PINMUX(18, 4, 8)>, /* TXD */ >>>> + <RZG2L_PORT_PINMUX(18, 5, 8)>; /* RXD */ >>>> + }; >>>> }; >>>> >>>> &scif0 { >>>> @@ -171,3 +188,12 @@ &sdhi1 { >>>> max-frequency = <125000000>; >>>> status = "okay"; >>>> }; >>>> + >>>> +&ssi3 { >>>> + clocks = <&cpg CPG_MOD R9A08G045_SSI3_PCLK2>, >>>> + <&cpg CPG_MOD R9A08G045_SSI3_PCLK_SFR>, >>>> + <&versa3 2>, <&audio_clk2>; >>>> + pinctrl-names = "default"; >>>> + pinctrl-0 = <&ssi3_pins>, <&audio_clock_pins>; >>>> + status = "okay"; >>>> +}; >>>> -- >>>> 2.39.2 >>>
Hi Claudiu, > -----Original Message----- > From: Claudiu Beznea <claudiu.beznea@tuxon.dev> > Sent: 12 November 2024 08:31 > Subject: Re: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable SSI3 > > Hi, Biju, > > On 11.11.2024 13:30, Biju Das wrote: > > Hi Claudiu, > > > >> -----Original Message----- > >> From: Claudiu Beznea <claudiu.beznea@tuxon.dev> > >> Sent: 11 November 2024 11:20 > >> Subject: Re: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: > >> Enable SSI3 > >> > >> Hi, Biju, > >> > >> On 10.11.2024 10:54, Biju Das wrote: > >>> Hi Claudiu, > >>> > >>> Thanks for the patch. > >>> > >>> > >>>> -----Original Message----- > >>>> From: Claudiu <claudiu.beznea@tuxon.dev> > >>>> Sent: 08 November 2024 10:50 > >>>> Subject: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable > >>>> SSI3 > >>>> > >>>> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> > >>>> > >>>> Enable SSI3. > >>>> > >>>> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> > >>>> --- > >>>> > >>>> Changes in v2: > >>>> - none > >>>> > >>>> arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 26 > >>>> ++++++++++++++++++++ > >>>> 1 file changed, 26 insertions(+) > >>>> > >>>> diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > >>>> b/arch/arm64/boot/dts/renesas/rzg3s- > >>>> smarc.dtsi > >>>> index 4aa99814b808..6dd439e68bd4 100644 > >>>> --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > >>>> +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > >>>> @@ -64,6 +64,11 @@ vccq_sdhi1: regulator-vccq-sdhi1 { > >>>> }; > >>>> }; > >>>> > >>> > >>> &audio_clk1 { > >>> assigned-clocks = <&versa3 xx>; > >>> clock-frequency = <11289600>; }; > >> > >> audio_clk1 node is in the RZ/G3S dtsi to keep the compilation happy. > >> > >> For this board the audio clock1 for the SSI 3 is from <&versa3 2>. > >> > >> If we fill in the audio_clk1 here it will be useless, there will be > >> no consumers for it and it is not available on board. > > > > As per SSI IP needs external clks AUDIO_CLK1 and AUDIO_CLK2. > > > > AUDIO_CLK1 is provided by versa3 generator and > > AUDIO_CLK2 is provided by Crystal. > > > > Currently AUDIO_CLK2 it reports a frequency of 12288000 which is a > > multiple of 48kHz whereas for AUDIO_CLK1, it reports a frequency of 0. > > Why? You mentioned above that "AUDIO_CLK1 is provided by versa3 generator". Output from versa3 generator is connector to AUDIO_CLK1 pin that you described in SoC dtsi node with the entries + audio_clk1: audio-clk1 { + compatible = "fixed-clock"; + #clock-cells = <0>; + /* This value must be overridden by boards that provide it. */ + clock-frequency = <0>; + status = "disabled"; + }; This needs to be overridden by board dts, where versa3 is providing this clk. Currently there is no relation between this SoC device node and versa3 clk output for audio clk1. Cheers, Biju
On 12.11.2024 11:03, Biju Das wrote: > Hi Claudiu, > >> -----Original Message----- >> From: Claudiu Beznea <claudiu.beznea@tuxon.dev> >> Sent: 12 November 2024 08:31 >> Subject: Re: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable SSI3 >> >> Hi, Biju, >> >> On 11.11.2024 13:30, Biju Das wrote: >>> Hi Claudiu, >>> >>>> -----Original Message----- >>>> From: Claudiu Beznea <claudiu.beznea@tuxon.dev> >>>> Sent: 11 November 2024 11:20 >>>> Subject: Re: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: >>>> Enable SSI3 >>>> >>>> Hi, Biju, >>>> >>>> On 10.11.2024 10:54, Biju Das wrote: >>>>> Hi Claudiu, >>>>> >>>>> Thanks for the patch. >>>>> >>>>> >>>>>> -----Original Message----- >>>>>> From: Claudiu <claudiu.beznea@tuxon.dev> >>>>>> Sent: 08 November 2024 10:50 >>>>>> Subject: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable >>>>>> SSI3 >>>>>> >>>>>> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> >>>>>> >>>>>> Enable SSI3. >>>>>> >>>>>> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> >>>>>> --- >>>>>> >>>>>> Changes in v2: >>>>>> - none >>>>>> >>>>>> arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 26 >>>>>> ++++++++++++++++++++ >>>>>> 1 file changed, 26 insertions(+) >>>>>> >>>>>> diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi >>>>>> b/arch/arm64/boot/dts/renesas/rzg3s- >>>>>> smarc.dtsi >>>>>> index 4aa99814b808..6dd439e68bd4 100644 >>>>>> --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi >>>>>> +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi >>>>>> @@ -64,6 +64,11 @@ vccq_sdhi1: regulator-vccq-sdhi1 { >>>>>> }; >>>>>> }; >>>>>> >>>>> >>>>> &audio_clk1 { >>>>> assigned-clocks = <&versa3 xx>; >>>>> clock-frequency = <11289600>; }; >>>> >>>> audio_clk1 node is in the RZ/G3S dtsi to keep the compilation happy. >>>> >>>> For this board the audio clock1 for the SSI 3 is from <&versa3 2>. >>>> >>>> If we fill in the audio_clk1 here it will be useless, there will be >>>> no consumers for it and it is not available on board. >>> >>> As per SSI IP needs external clks AUDIO_CLK1 and AUDIO_CLK2. >>> >>> AUDIO_CLK1 is provided by versa3 generator and >>> AUDIO_CLK2 is provided by Crystal. >>> >>> Currently AUDIO_CLK2 it reports a frequency of 12288000 which is a >>> multiple of 48kHz whereas for AUDIO_CLK1, it reports a frequency of 0. >> >> Why? You mentioned above that "AUDIO_CLK1 is provided by versa3 generator". > > Output from versa3 generator is connector to AUDIO_CLK1 According to schematics this is true. > that you described in > SoC dtsi node with the entries > > + audio_clk1: audio-clk1 { > + compatible = "fixed-clock"; > + #clock-cells = <0>; > + /* This value must be overridden by boards that provide it. */ > + clock-frequency = <0>; > + status = "disabled"; > + }; That is a clock node, placeholder in the DTSI, to make compilation happy. > > This needs to be overridden by board dts, Only if used, otherwise is an useless node. > where versa3 is providing this clk. > Currently there is no relation between this SoC device node and versa3 clk output for audio clk1. I may be wrong or I many not understand what you are trying to say, but isn't what this patch does? See this diff from this patch: +&ssi3 { + clocks = <&cpg CPG_MOD R9A08G045_SSI3_PCLK2>, + <&cpg CPG_MOD R9A08G045_SSI3_PCLK_SFR>, + <&versa3 2>, <&audio_clk2>; + pinctrl-names = "default"; + pinctrl-0 = <&ssi3_pins>, <&audio_clock_pins>; + status = "okay"; +};
Hi Claudiu, > Subject: Re: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: Enable SSI3 > > > > On 12.11.2024 11:03, Biju Das wrote: > > Hi Claudiu, > > > >> -----Original Message----- > >> From: Claudiu Beznea <claudiu.beznea@tuxon.dev> > >> Sent: 12 November 2024 08:31 > >> Subject: Re: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: > >> Enable SSI3 > >> > >> Hi, Biju, > >> > >> On 11.11.2024 13:30, Biju Das wrote: > >>> Hi Claudiu, > >>> > >>>> -----Original Message----- > >>>> From: Claudiu Beznea <claudiu.beznea@tuxon.dev> > >>>> Sent: 11 November 2024 11:20 > >>>> Subject: Re: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: > >>>> Enable SSI3 > >>>> > >>>> Hi, Biju, > >>>> > >>>> On 10.11.2024 10:54, Biju Das wrote: > >>>>> Hi Claudiu, > >>>>> > >>>>> Thanks for the patch. > >>>>> > >>>>> > >>>>>> -----Original Message----- > >>>>>> From: Claudiu <claudiu.beznea@tuxon.dev> > >>>>>> Sent: 08 November 2024 10:50 > >>>>>> Subject: [PATCH v2 24/25] arm64: dts: renesas: rzg3s-smarc: > >>>>>> Enable > >>>>>> SSI3 > >>>>>> > >>>>>> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> > >>>>>> > >>>>>> Enable SSI3. > >>>>>> > >>>>>> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> > >>>>>> --- > >>>>>> > >>>>>> Changes in v2: > >>>>>> - none > >>>>>> > >>>>>> arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 26 > >>>>>> ++++++++++++++++++++ > >>>>>> 1 file changed, 26 insertions(+) > >>>>>> > >>>>>> diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > >>>>>> b/arch/arm64/boot/dts/renesas/rzg3s- > >>>>>> smarc.dtsi > >>>>>> index 4aa99814b808..6dd439e68bd4 100644 > >>>>>> --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > >>>>>> +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi > >>>>>> @@ -64,6 +64,11 @@ vccq_sdhi1: regulator-vccq-sdhi1 { > >>>>>> }; > >>>>>> }; > >>>>>> > >>>>> > >>>>> &audio_clk1 { > >>>>> assigned-clocks = <&versa3 xx>; > >>>>> clock-frequency = <11289600>; }; > >>>> > >>>> audio_clk1 node is in the RZ/G3S dtsi to keep the compilation happy. > >>>> > >>>> For this board the audio clock1 for the SSI 3 is from <&versa3 2>. > >>>> > >>>> If we fill in the audio_clk1 here it will be useless, there will be > >>>> no consumers for it and it is not available on board. > >>> > >>> As per SSI IP needs external clks AUDIO_CLK1 and AUDIO_CLK2. > >>> > >>> AUDIO_CLK1 is provided by versa3 generator and > >>> AUDIO_CLK2 is provided by Crystal. > >>> > >>> Currently AUDIO_CLK2 it reports a frequency of 12288000 which is a > >>> multiple of 48kHz whereas for AUDIO_CLK1, it reports a frequency of 0. > >> > >> Why? You mentioned above that "AUDIO_CLK1 is provided by versa3 generator". > > > > Output from versa3 generator is connector to AUDIO_CLK1 > > According to schematics this is true. > > > > that you described in > > SoC dtsi node with the entries > > > > + audio_clk1: audio-clk1 { > > + compatible = "fixed-clock"; > > + #clock-cells = <0>; > > + /* This value must be overridden by boards that provide it. */ > > + clock-frequency = <0>; > > + status = "disabled"; > > + }; > > That is a clock node, placeholder in the DTSI, to make compilation happy. > > > > > This needs to be overridden by board dts, > > Only if used, otherwise is an useless node. I agree it is an useless node, if there is no relation between versa 3 output and audio_clk1 node. > > > where versa3 is providing this clk. > > Currently there is no relation between this SoC device node and versa3 clk output for audio clk1. > > I may be wrong or I many not understand what you are trying to say, but isn't what this patch does? > See this diff from this patch: The ssi3 definitions are OK. audio_clk2 node, we described crystal frequency of 12288000. Other audio_clk1 node is useless node, even though versa3 is providing required clock with 11289600. I am not sure is this definition is required or not as I am not a DT expert?? Cheers, Biju > > +&ssi3 { > + clocks = <&cpg CPG_MOD R9A08G045_SSI3_PCLK2>, > + <&cpg CPG_MOD R9A08G045_SSI3_PCLK_SFR>, > + <&versa3 2>, <&audio_clk2>; > + pinctrl-names = "default"; > + pinctrl-0 = <&ssi3_pins>, <&audio_clock_pins>; > + status = "okay"; > +};
diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi index 4aa99814b808..6dd439e68bd4 100644 --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi @@ -64,6 +64,11 @@ vccq_sdhi1: regulator-vccq-sdhi1 { }; }; +&audio_clk2 { + clock-frequency = <12288000>; + status = "okay"; +}; + &i2c0 { status = "okay"; @@ -94,6 +99,11 @@ da7212: codec@1a { }; &pinctrl { + audio_clock_pins: audio-clock { + pins = "AUDIO_CLK1", "AUDIO_CLK2"; + input-enable; + }; + key-1-gpio-hog { gpio-hog; gpios = <RZG2L_GPIO(18, 0) GPIO_ACTIVE_LOW>; @@ -151,6 +161,13 @@ cd { pinmux = <RZG2L_PORT_PINMUX(0, 2, 1)>; /* SD1_CD */ }; }; + + ssi3_pins: ssi3 { + pinmux = <RZG2L_PORT_PINMUX(18, 2, 8)>, /* BCK */ + <RZG2L_PORT_PINMUX(18, 3, 8)>, /* RCK */ + <RZG2L_PORT_PINMUX(18, 4, 8)>, /* TXD */ + <RZG2L_PORT_PINMUX(18, 5, 8)>; /* RXD */ + }; }; &scif0 { @@ -171,3 +188,12 @@ &sdhi1 { max-frequency = <125000000>; status = "okay"; }; + +&ssi3 { + clocks = <&cpg CPG_MOD R9A08G045_SSI3_PCLK2>, + <&cpg CPG_MOD R9A08G045_SSI3_PCLK_SFR>, + <&versa3 2>, <&audio_clk2>; + pinctrl-names = "default"; + pinctrl-0 = <&ssi3_pins>, <&audio_clock_pins>; + status = "okay"; +};