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From: Richard Fitzgerald <rf@opensource.cirrus.com>
To: <broonie@kernel.org>, <robh+dt@kernel.org>,
	<kuninori.morimoto.gx@renesas.com>, <nsaenzjulienne@suse.de>,
	<f.fainelli@gmail.com>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<alsa-devel@alsa-project.org>, <patches@opensource.cirrus.com>,
	<bcm-kernel-feedback-list@broadcom.com>,
	<linux-rpi-kernel@lists.infradead.org>,
	<linux-arm-kernel@lists.infradead.org>,
	Richard Fitzgerald <rf@opensource.cirrus.com>
Subject: [PATCH v4 0/6] Add support for Rpi4b + Cirrus Lochnagar2 and CS47L15
Date: Fri, 8 Jan 2021 16:04:55 +0000	[thread overview]
Message-ID: <20210108160501.7638-1-rf@opensource.cirrus.com> (raw)

This set of patches provides support for using the Raspberry Pi 4b with
a Cirrus Logic Lochnagar 2 audio development platform plus Cirrus Logic
CS47L15 codec.

Patches are needed to audio-graph-card to enable support for setting the
component sysclks and plls. These are not specific to CS47L15 - several
Cirrus and non-Cirrus codecs also require component clock setup, typically
for larger codecs with multiple internal clocking options and clock domains.

The codec sysclks and plls cannot be placed under the clock framework because
they are typically I2C/SPI/Soundwire-connected peripherals and access to the
registers would cause a nested get of the bus clock. The clock framework does
not support this and it would result in a deadlock.

Richard Fitzgerald (6):
  of: base: Add of_count_phandle_with_fixed_args()
  dt-bindings: audio-graph-card: Add plls and sysclks properties
  ASoC: audio-graph-card: Support setting component plls and sysclks
  ASoC: madera: Allow codecs to be selected from kernel config
  ASoC: madera: Export clock config defines to dt-bindings
  ARM: dts: Add dts for RPi4b + Cirrus Logic Lochnagar2 + CS47L15

 .../bindings/sound/audio-graph.yaml           |  46 ++++
 MAINTAINERS                                   |   1 +
 arch/arm/boot/dts/Makefile                    |   1 +
 .../dts/bcm2711-rpi-4-b-lochnagar-cs47l15.dts | 186 ++++++++++++++
 .../boot/dts/bcm2711-rpi-4-b-lochnagar.dtsi   | 201 +++++++++++++++
 drivers/of/base.c                             |  73 ++++--
 include/dt-bindings/sound/madera.h            |  60 +++++
 include/linux/of.h                            |   9 +
 include/sound/simple_card_utils.h             |  25 ++
 sound/soc/codecs/Kconfig                      |  10 +-
 sound/soc/codecs/madera.h                     |  56 +----
 sound/soc/generic/audio-graph-card.c          |  13 +
 sound/soc/generic/simple-card-utils.c         | 238 ++++++++++++++++++
 13 files changed, 836 insertions(+), 83 deletions(-)
 create mode 100644 arch/arm/boot/dts/bcm2711-rpi-4-b-lochnagar-cs47l15.dts
 create mode 100644 arch/arm/boot/dts/bcm2711-rpi-4-b-lochnagar.dtsi

-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: Richard Fitzgerald <rf@opensource.cirrus.com>
To: <broonie@kernel.org>, <robh+dt@kernel.org>,
	<kuninori.morimoto.gx@renesas.com>, <nsaenzjulienne@suse.de>,
	<f.fainelli@gmail.com>
Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org,
	patches@opensource.cirrus.com, linux-kernel@vger.kernel.org,
	Richard Fitzgerald <rf@opensource.cirrus.com>,
	bcm-kernel-feedback-list@broadcom.com,
	linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 0/6] Add support for Rpi4b + Cirrus Lochnagar2 and CS47L15
Date: Fri, 8 Jan 2021 16:04:55 +0000	[thread overview]
Message-ID: <20210108160501.7638-1-rf@opensource.cirrus.com> (raw)

This set of patches provides support for using the Raspberry Pi 4b with
a Cirrus Logic Lochnagar 2 audio development platform plus Cirrus Logic
CS47L15 codec.

Patches are needed to audio-graph-card to enable support for setting the
component sysclks and plls. These are not specific to CS47L15 - several
Cirrus and non-Cirrus codecs also require component clock setup, typically
for larger codecs with multiple internal clocking options and clock domains.

The codec sysclks and plls cannot be placed under the clock framework because
they are typically I2C/SPI/Soundwire-connected peripherals and access to the
registers would cause a nested get of the bus clock. The clock framework does
not support this and it would result in a deadlock.

Richard Fitzgerald (6):
  of: base: Add of_count_phandle_with_fixed_args()
  dt-bindings: audio-graph-card: Add plls and sysclks properties
  ASoC: audio-graph-card: Support setting component plls and sysclks
  ASoC: madera: Allow codecs to be selected from kernel config
  ASoC: madera: Export clock config defines to dt-bindings
  ARM: dts: Add dts for RPi4b + Cirrus Logic Lochnagar2 + CS47L15

 .../bindings/sound/audio-graph.yaml           |  46 ++++
 MAINTAINERS                                   |   1 +
 arch/arm/boot/dts/Makefile                    |   1 +
 .../dts/bcm2711-rpi-4-b-lochnagar-cs47l15.dts | 186 ++++++++++++++
 .../boot/dts/bcm2711-rpi-4-b-lochnagar.dtsi   | 201 +++++++++++++++
 drivers/of/base.c                             |  73 ++++--
 include/dt-bindings/sound/madera.h            |  60 +++++
 include/linux/of.h                            |   9 +
 include/sound/simple_card_utils.h             |  25 ++
 sound/soc/codecs/Kconfig                      |  10 +-
 sound/soc/codecs/madera.h                     |  56 +----
 sound/soc/generic/audio-graph-card.c          |  13 +
 sound/soc/generic/simple-card-utils.c         | 238 ++++++++++++++++++
 13 files changed, 836 insertions(+), 83 deletions(-)
 create mode 100644 arch/arm/boot/dts/bcm2711-rpi-4-b-lochnagar-cs47l15.dts
 create mode 100644 arch/arm/boot/dts/bcm2711-rpi-4-b-lochnagar.dtsi

-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: Richard Fitzgerald <rf@opensource.cirrus.com>
To: <broonie@kernel.org>, <robh+dt@kernel.org>,
	<kuninori.morimoto.gx@renesas.com>, <nsaenzjulienne@suse.de>,
	<f.fainelli@gmail.com>
Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org,
	patches@opensource.cirrus.com, linux-kernel@vger.kernel.org,
	Richard Fitzgerald <rf@opensource.cirrus.com>,
	bcm-kernel-feedback-list@broadcom.com,
	linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 0/6] Add support for Rpi4b + Cirrus Lochnagar2 and CS47L15
Date: Fri, 8 Jan 2021 16:04:55 +0000	[thread overview]
Message-ID: <20210108160501.7638-1-rf@opensource.cirrus.com> (raw)

This set of patches provides support for using the Raspberry Pi 4b with
a Cirrus Logic Lochnagar 2 audio development platform plus Cirrus Logic
CS47L15 codec.

Patches are needed to audio-graph-card to enable support for setting the
component sysclks and plls. These are not specific to CS47L15 - several
Cirrus and non-Cirrus codecs also require component clock setup, typically
for larger codecs with multiple internal clocking options and clock domains.

The codec sysclks and plls cannot be placed under the clock framework because
they are typically I2C/SPI/Soundwire-connected peripherals and access to the
registers would cause a nested get of the bus clock. The clock framework does
not support this and it would result in a deadlock.

Richard Fitzgerald (6):
  of: base: Add of_count_phandle_with_fixed_args()
  dt-bindings: audio-graph-card: Add plls and sysclks properties
  ASoC: audio-graph-card: Support setting component plls and sysclks
  ASoC: madera: Allow codecs to be selected from kernel config
  ASoC: madera: Export clock config defines to dt-bindings
  ARM: dts: Add dts for RPi4b + Cirrus Logic Lochnagar2 + CS47L15

 .../bindings/sound/audio-graph.yaml           |  46 ++++
 MAINTAINERS                                   |   1 +
 arch/arm/boot/dts/Makefile                    |   1 +
 .../dts/bcm2711-rpi-4-b-lochnagar-cs47l15.dts | 186 ++++++++++++++
 .../boot/dts/bcm2711-rpi-4-b-lochnagar.dtsi   | 201 +++++++++++++++
 drivers/of/base.c                             |  73 ++++--
 include/dt-bindings/sound/madera.h            |  60 +++++
 include/linux/of.h                            |   9 +
 include/sound/simple_card_utils.h             |  25 ++
 sound/soc/codecs/Kconfig                      |  10 +-
 sound/soc/codecs/madera.h                     |  56 +----
 sound/soc/generic/audio-graph-card.c          |  13 +
 sound/soc/generic/simple-card-utils.c         | 238 ++++++++++++++++++
 13 files changed, 836 insertions(+), 83 deletions(-)
 create mode 100644 arch/arm/boot/dts/bcm2711-rpi-4-b-lochnagar-cs47l15.dts
 create mode 100644 arch/arm/boot/dts/bcm2711-rpi-4-b-lochnagar.dtsi

-- 
2.20.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2021-01-08 16:06 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-08 16:04 Richard Fitzgerald [this message]
2021-01-08 16:04 ` [PATCH v4 0/6] Add support for Rpi4b + Cirrus Lochnagar2 and CS47L15 Richard Fitzgerald
2021-01-08 16:04 ` Richard Fitzgerald
2021-01-08 16:04 ` [PATCH v4 1/6] of: base: Add of_count_phandle_with_fixed_args() Richard Fitzgerald
2021-01-08 16:04   ` Richard Fitzgerald
2021-01-08 16:04   ` Richard Fitzgerald
2021-01-08 16:04 ` [PATCH v4 2/6] dt-bindings: audio-graph-card: Add plls and sysclks properties Richard Fitzgerald
2021-01-08 16:04   ` Richard Fitzgerald
2021-01-08 16:04   ` Richard Fitzgerald
2021-01-13 15:22   ` Rob Herring
2021-01-13 15:22     ` Rob Herring
2021-01-13 15:22     ` Rob Herring
2021-01-13 16:09     ` Mark Brown
2021-01-13 16:09       ` Mark Brown
2021-01-13 16:09       ` Mark Brown
2021-01-15 10:35       ` Richard Fitzgerald
2021-01-15 10:35         ` Richard Fitzgerald
2021-01-15 10:35         ` Richard Fitzgerald
2021-01-15 13:11         ` Mark Brown
2021-01-15 13:11           ` Mark Brown
2021-01-15 13:11           ` Mark Brown
2021-01-15 14:42           ` Richard Fitzgerald
2021-01-15 14:42             ` Richard Fitzgerald
2021-01-15 14:42             ` Richard Fitzgerald
2021-01-15 15:20             ` Mark Brown
2021-01-15 15:20               ` Mark Brown
2021-01-15 15:20               ` Mark Brown
2021-01-15 16:15               ` Richard Fitzgerald
2021-01-15 16:15                 ` Richard Fitzgerald
2021-01-15 16:15                 ` Richard Fitzgerald
2021-01-15 18:35                 ` Mark Brown
2021-01-15 18:35                   ` Mark Brown
2021-01-15 18:35                   ` Mark Brown
2021-01-14 10:31     ` Richard Fitzgerald
2021-01-14 10:31       ` Richard Fitzgerald
2021-01-14 10:31       ` Richard Fitzgerald
2021-01-14 11:14       ` Mark Brown
2021-01-14 11:14         ` Mark Brown
2021-01-14 11:14         ` Mark Brown
2021-01-14 12:31         ` Richard Fitzgerald
2021-01-08 16:04 ` [PATCH v4 3/6] ASoC: audio-graph-card: Support setting component plls and sysclks Richard Fitzgerald
2021-01-08 16:04   ` Richard Fitzgerald
2021-01-08 16:04   ` Richard Fitzgerald
2021-01-12  1:35   ` Kuninori Morimoto
2021-01-12  1:35     ` Kuninori Morimoto
2021-01-12  1:35     ` Kuninori Morimoto
2021-01-12 10:22     ` Richard Fitzgerald
2021-01-12 10:22       ` Richard Fitzgerald
2021-01-12 10:22       ` Richard Fitzgerald
2021-01-13  0:00       ` Kuninori Morimoto
2021-01-13  0:00         ` Kuninori Morimoto
2021-01-13  0:00         ` Kuninori Morimoto
2021-01-13 15:51         ` Mark Brown
2021-01-13 15:51           ` Mark Brown
2021-01-13 15:51           ` Mark Brown
2021-01-08 16:04 ` [PATCH v4 4/6] ASoC: madera: Allow codecs to be selected from kernel config Richard Fitzgerald
2021-01-08 16:04   ` Richard Fitzgerald
2021-01-08 16:04   ` Richard Fitzgerald
2021-01-08 16:05 ` [PATCH v4 5/6] ASoC: madera: Export clock config defines to dt-bindings Richard Fitzgerald
2021-01-08 16:05   ` Richard Fitzgerald
2021-01-08 16:05   ` Richard Fitzgerald
2021-01-08 16:05 ` [PATCH v4 6/6] ARM: dts: Add dts for RPi4b + Cirrus Logic Lochnagar2 + CS47L15 Richard Fitzgerald
2021-01-08 16:05   ` Richard Fitzgerald
2021-01-08 16:05   ` Richard Fitzgerald

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