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Message-Id: <20210809135942.100744-2-krzysztof.kozlowski@canonical.com>
Date: Mon, 9 Aug 2021 15:59:40 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Sylwester Nawrocki <s.nawrocki@...sung.com>,
Tomasz Figa <tomasz.figa@...il.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] dt-bindings: clock: samsung: convert Exynos AudSS to dtschema
Convert Samsung Exynos Audio SubSystem clock controller bindings to DT
schema format using json-schema.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
.../bindings/clock/clk-exynos-audss.txt | 103 ------------------
.../clock/samsung,exynos-audss-clock.yaml | 79 ++++++++++++++
2 files changed, 79 insertions(+), 103 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/clock/clk-exynos-audss.txt
create mode 100644 Documentation/devicetree/bindings/clock/samsung,exynos-audss-clock.yaml
diff --git a/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt b/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt
deleted file mode 100644
index 6030afb10b5c..000000000000
--- a/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt
+++ /dev/null
@@ -1,103 +0,0 @@
-* Samsung Audio Subsystem Clock Controller
-
-The Samsung Audio Subsystem clock controller generates and supplies clocks
-to Audio Subsystem block available in the S5PV210 and Exynos SoCs. The clock
-binding described here is applicable to all SoCs in Exynos family.
-
-Required Properties:
-
-- compatible: should be one of the following:
- - "samsung,exynos4210-audss-clock" - controller compatible with all Exynos4 SoCs.
- - "samsung,exynos5250-audss-clock" - controller compatible with Exynos5250
- SoCs.
- - "samsung,exynos5410-audss-clock" - controller compatible with Exynos5410
- SoCs.
- - "samsung,exynos5420-audss-clock" - controller compatible with Exynos5420
- SoCs.
-- reg: physical base address and length of the controller's register set.
-
-- #clock-cells: should be 1.
-
-- clocks:
- - pll_ref: Fixed rate PLL reference clock, parent of mout_audss. "fin_pll"
- is used if not specified.
- - pll_in: Input PLL to the AudioSS block, parent of mout_audss. "fout_epll"
- is used if not specified.
- - cdclk: External i2s clock, parent of mout_i2s. "cdclk0" is used if not
- specified.
- - sclk_audio: Audio bus clock, parent of mout_i2s. "sclk_audio0" is used if
- not specified.
- - sclk_pcm_in: PCM clock, parent of sclk_pcm. "sclk_pcm0" is used if not
- specified.
-
-- clock-names: Aliases for the above clocks. They should be "pll_ref",
- "pll_in", "cdclk", "sclk_audio", and "sclk_pcm_in" respectively.
-
-Optional Properties:
-
- - power-domains: a phandle to respective power domain node as described by
- generic PM domain bindings (see power/power_domain.txt for more
- information).
-
-The following is the list of clocks generated by the controller. Each clock is
-assigned an identifier and client nodes use this identifier to specify the
-clock which they consume. Some of the clocks are available only on a particular
-Exynos4 SoC and this is specified where applicable.
-
-Provided clocks:
-
-Clock ID SoC (if specific)
------------------------------------------------
-
-mout_audss 0
-mout_i2s 1
-dout_srp 2
-dout_aud_bus 3
-dout_i2s 4
-srp_clk 5
-i2s_bus 6
-sclk_i2s 7
-pcm_bus 8
-sclk_pcm 9
-adma 10 Exynos5420
-
-Example 1: An example of a clock controller node using the default input
- clock names is listed below.
-
-clock_audss: audss-clock-controller@...0000 {
- compatible = "samsung,exynos5250-audss-clock";
- reg = <0x03810000 0x0C>;
- #clock-cells = <1>;
-};
-
-Example 2: An example of a clock controller node with the input clocks
- specified.
-
-clock_audss: audss-clock-controller@...0000 {
- compatible = "samsung,exynos5250-audss-clock";
- reg = <0x03810000 0x0C>;
- #clock-cells = <1>;
- clocks = <&clock 1>, <&clock 7>, <&clock 138>, <&clock 160>,
- <&ext_i2s_clk>;
- clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in", "cdclk";
-};
-
-Example 3: I2S controller node that consumes the clock generated by the clock
- controller. Refer to the standard clock bindings for information
- about 'clocks' and 'clock-names' property.
-
-i2s0: i2s@...0000 {
- compatible = "samsung,i2s-v5";
- reg = <0x03830000 0x100>;
- dmas = <&pdma0 10
- &pdma0 9
- &pdma0 8>;
- dma-names = "tx", "rx", "tx-sec";
- clocks = <&clock_audss EXYNOS_I2S_BUS>,
- <&clock_audss EXYNOS_I2S_BUS>,
- <&clock_audss EXYNOS_SCLK_I2S>,
- <&clock_audss EXYNOS_MOUT_AUDSS>,
- <&clock_audss EXYNOS_MOUT_I2S>;
- clock-names = "iis", "i2s_opclk0", "i2s_opclk1",
- "mout_audss", "mout_i2s";
-};
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos-audss-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos-audss-clock.yaml
new file mode 100644
index 000000000000..d60b29fa22e7
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos-audss-clock.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,exynos-audss-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC Audio SubSystem clock controller
+
+maintainers:
+ - Chanwoo Choi <cw00.choi@...sung.com>
+ - Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
+ - Sylwester Nawrocki <s.nawrocki@...sung.com>
+ - Tomasz Figa <tomasz.figa@...il.com>
+
+description: |
+ All available clocks are defined as preprocessor macros in
+ include/dt-bindings/clock/exynos-audss-clk.h header.
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos4210-audss-clock
+ - samsung,exynos5250-audss-clock
+ - samsung,exynos5410-audss-clock
+ - samsung,exynos5420-audss-clock
+
+ clocks:
+ minItems: 2
+ items:
+ - description:
+ Fixed rate PLL reference clock, parent of mout_audss. "fin_pll" is
+ used if not specified.
+ - description:
+ Input PLL to the AudioSS block, parent of mout_audss. "fout_epll" is
+ used if not specified.
+ - description:
+ Audio bus clock, parent of mout_i2s. "sclk_audio0" is used if not
+ specified.
+ - description:
+ PCM clock, parent of sclk_pcm. "sclk_pcm0" is used if not specified.
+ - description:
+ External i2s clock, parent of mout_i2s. "cdclk0" is used if not
+ specified.
+
+ clock-names:
+ minItems: 2
+ items:
+ - const: pll_ref
+ - const: pll_in
+ - const: sclk_audio
+ - const: sclk_pcm_in
+ - const: cdclk
+
+ "#clock-cells":
+ const: 1
+
+ power-domains: true
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - "#clock-cells"
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@...0000 {
+ compatible = "samsung,exynos5250-audss-clock";
+ reg = <0x03810000 0x0c>;
+ #clock-cells = <1>;
+ clocks = <&clock 1>, <&clock 7>, <&clock 138>, <&clock 160>, <&ext_i2s_clk>;
+ clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in", "cdclk";
+ };
--
2.30.2
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