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From: <gabriel.fernandez@foss.st.com>
To: Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd
	<sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Alexandre Torgue
	<alexandre.torgue@foss.st.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Gabriel Fernandez <gabriel.fernandez@foss.st.com>
CC: <linux-clk@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-stm32@st-md-mailman.stormreply.com>,
        <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: [PATCH v11 2/4] dt-bindings: clocks: stm32mp25: add description of all parents
Date: Thu, 11 Apr 2024 11:24:51 +0200
Message-ID: <20240411092453.243633-3-gabriel.fernandez@foss.st.com>
In-Reply-To: <20240411092453.243633-1-gabriel.fernandez@foss.st.com>
References: <20240411092453.243633-1-gabriel.fernandez@foss.st.com>
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From: Gabriel Fernandez <gabriel.fernandez@foss.st.com>

RCC driver uses '.index' to define all parent clocks instead '.names'
because the use of a name to define a parent clock is prohibited.
This is ABI change, but the RCC driver has not yet merged, unlike all
others drivers besides Linux.

Fixes: b5be49db3d47 ("dt-bindings: stm32: add clocks and reset binding for stm32mp25 platform")
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---

Changes in v11
  - fixes the the subject of this patch

Changes in v10:
  - cosmetic change (add change blank line)
  - rename USB2 into USBH to be compliant with last Reference Manuel

Changes in v9:
  - Update DT binding documentation according S.Boyd remarks on RCC driver:
    Don't use '.name' to define a parent but use '.index'
    Then:
      - remove 'clock-names' property
      - Add description of all parent clocks used in RCC driver
  v9 was acked-by Conor Dooley.

 .../bindings/clock/st,stm32mp25-rcc.yaml      | 170 ++++++++++++++++--
 include/dt-bindings/reset/st,stm32mp25-rcc.h  |   2 +-
 2 files changed, 156 insertions(+), 16 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml b/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml
index 7732e79a42b9..0929fa7e271b 100644
--- a/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml
+++ b/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml
@@ -38,14 +38,81 @@ properties:
       - description: CK_SCMI_MSI Low Power Internal oscillator (~ 4 MHz or ~ 16 MHz)
       - description: CK_SCMI_LSE Low Speed External oscillator (32 KHz)
       - description: CK_SCMI_LSI Low Speed Internal oscillator (~ 32 KHz)
-
-  clock-names:
-    items:
-      - const: hse
-      - const: hsi
-      - const: msi
-      - const: lse
-      - const: lsi
+      - description: CK_SCMI_HSE_DIV2 CK_SCMI_HSE divided by 2 (coud be gated)
+      - description: CK_SCMI_ICN_HS_MCU High Speed interconnect bus clock
+      - description: CK_SCMI_ICN_LS_MCU Low Speed interconnect bus clock
+      - description: CK_SCMI_ICN_SDMMC SDMMC interconnect bus clock
+      - description: CK_SCMI_ICN_DDR DDR interconnect bus clock
+      - description: CK_SCMI_ICN_DISPLAY Display interconnect bus clock
+      - description: CK_SCMI_ICN_HSL HSL interconnect bus clock
+      - description: CK_SCMI_ICN_NIC NIC interconnect bus clock
+      - description: CK_SCMI_ICN_VID Video interconnect bus clock
+      - description: CK_SCMI_FLEXGEN_07 flexgen clock 7
+      - description: CK_SCMI_FLEXGEN_08 flexgen clock 8
+      - description: CK_SCMI_FLEXGEN_09 flexgen clock 9
+      - description: CK_SCMI_FLEXGEN_10 flexgen clock 10
+      - description: CK_SCMI_FLEXGEN_11 flexgen clock 11
+      - description: CK_SCMI_FLEXGEN_12 flexgen clock 12
+      - description: CK_SCMI_FLEXGEN_13 flexgen clock 13
+      - description: CK_SCMI_FLEXGEN_14 flexgen clock 14
+      - description: CK_SCMI_FLEXGEN_15 flexgen clock 15
+      - description: CK_SCMI_FLEXGEN_16 flexgen clock 16
+      - description: CK_SCMI_FLEXGEN_17 flexgen clock 17
+      - description: CK_SCMI_FLEXGEN_18 flexgen clock 18
+      - description: CK_SCMI_FLEXGEN_19 flexgen clock 19
+      - description: CK_SCMI_FLEXGEN_20 flexgen clock 20
+      - description: CK_SCMI_FLEXGEN_21 flexgen clock 21
+      - description: CK_SCMI_FLEXGEN_22 flexgen clock 22
+      - description: CK_SCMI_FLEXGEN_23 flexgen clock 23
+      - description: CK_SCMI_FLEXGEN_24 flexgen clock 24
+      - description: CK_SCMI_FLEXGEN_25 flexgen clock 25
+      - description: CK_SCMI_FLEXGEN_26 flexgen clock 26
+      - description: CK_SCMI_FLEXGEN_27 flexgen clock 27
+      - description: CK_SCMI_FLEXGEN_28 flexgen clock 28
+      - description: CK_SCMI_FLEXGEN_29 flexgen clock 29
+      - description: CK_SCMI_FLEXGEN_30 flexgen clock 30
+      - description: CK_SCMI_FLEXGEN_31 flexgen clock 31
+      - description: CK_SCMI_FLEXGEN_32 flexgen clock 32
+      - description: CK_SCMI_FLEXGEN_33 flexgen clock 33
+      - description: CK_SCMI_FLEXGEN_34 flexgen clock 34
+      - description: CK_SCMI_FLEXGEN_35 flexgen clock 35
+      - description: CK_SCMI_FLEXGEN_36 flexgen clock 36
+      - description: CK_SCMI_FLEXGEN_37 flexgen clock 37
+      - description: CK_SCMI_FLEXGEN_38 flexgen clock 38
+      - description: CK_SCMI_FLEXGEN_39 flexgen clock 39
+      - description: CK_SCMI_FLEXGEN_40 flexgen clock 40
+      - description: CK_SCMI_FLEXGEN_41 flexgen clock 41
+      - description: CK_SCMI_FLEXGEN_42 flexgen clock 42
+      - description: CK_SCMI_FLEXGEN_43 flexgen clock 43
+      - description: CK_SCMI_FLEXGEN_44 flexgen clock 44
+      - description: CK_SCMI_FLEXGEN_45 flexgen clock 45
+      - description: CK_SCMI_FLEXGEN_46 flexgen clock 46
+      - description: CK_SCMI_FLEXGEN_47 flexgen clock 47
+      - description: CK_SCMI_FLEXGEN_48 flexgen clock 48
+      - description: CK_SCMI_FLEXGEN_49 flexgen clock 49
+      - description: CK_SCMI_FLEXGEN_50 flexgen clock 50
+      - description: CK_SCMI_FLEXGEN_51 flexgen clock 51
+      - description: CK_SCMI_FLEXGEN_52 flexgen clock 52
+      - description: CK_SCMI_FLEXGEN_53 flexgen clock 53
+      - description: CK_SCMI_FLEXGEN_54 flexgen clock 54
+      - description: CK_SCMI_FLEXGEN_55 flexgen clock 55
+      - description: CK_SCMI_FLEXGEN_56 flexgen clock 56
+      - description: CK_SCMI_FLEXGEN_57 flexgen clock 57
+      - description: CK_SCMI_FLEXGEN_58 flexgen clock 58
+      - description: CK_SCMI_FLEXGEN_59 flexgen clock 59
+      - description: CK_SCMI_FLEXGEN_60 flexgen clock 60
+      - description: CK_SCMI_FLEXGEN_61 flexgen clock 61
+      - description: CK_SCMI_FLEXGEN_62 flexgen clock 62
+      - description: CK_SCMI_FLEXGEN_63 flexgen clock 63
+      - description: CK_SCMI_ICN_APB1 Peripheral bridge 1
+      - description: CK_SCMI_ICN_APB2 Peripheral bridge 2
+      - description: CK_SCMI_ICN_APB3 Peripheral bridge 3
+      - description: CK_SCMI_ICN_APB4 Peripheral bridge 4
+      - description: CK_SCMI_ICN_APBDBG Peripheral bridge for degub
+      - description: CK_SCMI_TIMG1 Peripheral bridge for timer1
+      - description: CK_SCMI_TIMG2 Peripheral bridge for timer2
+      - description: CK_SCMI_PLL3 PLL3 clock
+      - description: clk_dsi_txbyte DSI byte clock
 
 required:
   - compatible
@@ -53,7 +120,6 @@ required:
   - '#clock-cells'
   - '#reset-cells'
   - clocks
-  - clock-names
 
 additionalProperties: false
 
@@ -66,11 +132,85 @@ examples:
         reg = <0x44200000 0x10000>;
         #clock-cells = <1>;
         #reset-cells = <1>;
-        clock-names = "hse", "hsi", "msi", "lse", "lsi";
-        clocks = <&scmi_clk CK_SCMI_HSE>,
-                 <&scmi_clk CK_SCMI_HSI>,
-                 <&scmi_clk CK_SCMI_MSI>,
-                 <&scmi_clk CK_SCMI_LSE>,
-                 <&scmi_clk CK_SCMI_LSI>;
+        clocks =  <&scmi_clk CK_SCMI_HSE>,
+                  <&scmi_clk CK_SCMI_HSI>,
+                  <&scmi_clk CK_SCMI_MSI>,
+                  <&scmi_clk CK_SCMI_LSE>,
+                  <&scmi_clk CK_SCMI_LSI>,
+                  <&scmi_clk CK_SCMI_HSE_DIV2>,
+                  <&scmi_clk CK_SCMI_ICN_HS_MCU>,
+                  <&scmi_clk CK_SCMI_ICN_LS_MCU>,
+                  <&scmi_clk CK_SCMI_ICN_SDMMC>,
+                  <&scmi_clk CK_SCMI_ICN_DDR>,
+                  <&scmi_clk CK_SCMI_ICN_DISPLAY>,
+                  <&scmi_clk CK_SCMI_ICN_HSL>,
+                  <&scmi_clk CK_SCMI_ICN_NIC>,
+                  <&scmi_clk CK_SCMI_ICN_VID>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_07>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_08>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_09>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_10>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_11>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_12>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_13>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_14>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_15>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_16>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_17>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_18>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_19>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_20>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_21>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_22>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_23>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_24>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_25>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_26>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_27>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_28>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_29>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_30>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_31>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_32>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_33>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_34>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_35>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_36>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_37>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_38>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_39>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_40>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_41>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_42>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_43>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_44>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_45>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_46>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_47>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_48>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_49>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_50>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_51>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_52>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_53>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_54>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_55>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_56>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_57>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_58>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_59>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_60>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_61>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_62>,
+                  <&scmi_clk CK_SCMI_FLEXGEN_63>,
+                  <&scmi_clk CK_SCMI_ICN_APB1>,
+                  <&scmi_clk CK_SCMI_ICN_APB2>,
+                  <&scmi_clk CK_SCMI_ICN_APB3>,
+                  <&scmi_clk CK_SCMI_ICN_APB4>,
+                  <&scmi_clk CK_SCMI_ICN_APBDBG>,
+                  <&scmi_clk CK_SCMI_TIMG1>,
+                  <&scmi_clk CK_SCMI_TIMG2>,
+                  <&scmi_clk CK_SCMI_PLL3>,
+                  <&clk_dsi_txbyte>;
     };
 ...
diff --git a/include/dt-bindings/reset/st,stm32mp25-rcc.h b/include/dt-bindings/reset/st,stm32mp25-rcc.h
index d5615930bcc8..748e78ae20bd 100644
--- a/include/dt-bindings/reset/st,stm32mp25-rcc.h
+++ b/include/dt-bindings/reset/st,stm32mp25-rcc.h
@@ -69,7 +69,7 @@
 #define ADC3_R		59
 #define ETH1_R		60
 #define ETH2_R		61
-#define USB2_R		62
+#define USBH_R		62
 #define USB2PHY1_R	63
 #define USB2PHY2_R	64
 #define USB3DR_R	65
-- 
2.25.1