From nobody Thu Nov 28 13:45:46 2024 Received: from gloria.sntech.de (gloria.sntech.de [185.11.138.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8CAFF18454E; Mon, 30 Sep 2024 21:50:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.11.138.130 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727733010; cv=none; b=qqoPm2llcAQeiejHUpFtdfQaPPn+O4FfqTAUItEsRcNAxf01EHPeutTSJhRNQpBLPn3Ve5N5DsdnbKJ4mVWTM3VH4Mu7VIbuiQr/swnGeWlwdia7fMWG8Vty/LytDjUnk+bX97S9YcZmX7/b3lsWC47WqtTEgV3Kdip5Cx+OHqI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727733010; c=relaxed/simple; bh=GnyvN13QXknxV4Cd2rfU762ru5Lqfx9k/fzK6jNUkY4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=o5+GkU68Om5TIgpwL8FGuEXpBreJuCvEj+tJUe3pTs7h1fsqd5CwosdPuABowlgccB0iB/Xlx+D5J641ecBpOZ8TbmZjyp5j5sCToqx7YcamPoFuq0pvarV6M21N3SxVegfeUhJDh4DIv4V8biAzfTfm8fHVAaUjc+2ZjmjIU4s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de; spf=pass smtp.mailfrom=sntech.de; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b=nN98jtTC; arc=none smtp.client-ip=185.11.138.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sntech.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b="nN98jtTC" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=IV3S3N6JchgjR+3Hvyobg+DmDYydj+06VEKK0P502y4=; b=nN98jtTCPJq+9YSJ9wIQl+1Psg Zs3kXZK+HBffSlmvbjCNQc8GAyukgTreU46MPbrs1QKUb5UKTXt0v3mc8pexG3G40tU4oHMo3NVk9 pJfjfATWEDRICMrmxd7enhRZtR1SR3FyUC5LpA23BMeFZBJWus1kzcOYOjPK90ZXkSDAWHUW6zaYW 2kH9TFMLa6qqdaRr12LQQEwBmrBFcC25RfrZHjcIVW8Q9vlD1rlJuqMSxmV16eM54aUt/llKbsaIz tdJT6njEYL184II7KJpFwry0PCB5LQk5wRC6AQyM0ZDdkp7aDqDqZ5CGaq88CjOUw55YxlQ5UL8dz JsIG8A6g==; Received: from i5e861925.versanet.de ([94.134.25.37] helo=phil.lan) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1svOHL-0008So-Io; Mon, 30 Sep 2024 23:50:03 +0200 From: Heiko Stuebner To: heiko@sntech.de Cc: mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, jbx6244@gmail.com, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski Subject: [PATCH v2 1/3] dt-bindings: clock: convert rockchip,rk3328-cru.txt to YAML Date: Mon, 30 Sep 2024 23:49:59 +0200 Message-ID: <20240930215001.1999212-2-heiko@sntech.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240930215001.1999212-1-heiko@sntech.de> References: <20240930215001.1999212-1-heiko@sntech.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Johan Jonker Convert RK3328 clock controller bindings to DT schema Changes against original bindings: - Add clocks and clock-names as the device has at least one input clock. Signed-off-by: Johan Jonker Reviewed-by: Krzysztof Kozlowski [add Krzysztof's review from v1, shorten commit description] Signed-off-by: Heiko Stuebner --- .../bindings/clock/rockchip,rk3328-cru.txt | 58 --------------- .../bindings/clock/rockchip,rk3328-cru.yaml | 74 +++++++++++++++++++ 2 files changed, 74 insertions(+), 58 deletions(-) delete mode 100644 Documentation/devicetree/bindings/clock/rockchip,rk3328= -cru.txt create mode 100644 Documentation/devicetree/bindings/clock/rockchip,rk3328= -cru.yaml diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.tx= t b/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.txt deleted file mode 100644 index 904ae682ea90..000000000000 --- a/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.txt +++ /dev/null @@ -1,58 +0,0 @@ -* Rockchip RK3328 Clock and Reset Unit - -The RK3328 clock controller generates and supplies clock to various -controllers within the SoC and also implements a reset controller for SoC -peripherals. - -Required Properties: - -- compatible: should be "rockchip,rk3328-cru" -- reg: physical base address of the controller and length of memory mapped - region. -- #clock-cells: should be 1. -- #reset-cells: should be 1. - -Optional Properties: - -- rockchip,grf: phandle to the syscon managing the "general register files" - If missing pll rates are not changeable, due to the missing pll lock sta= tus. - -Each clock is assigned an identifier and client nodes can use this identif= ier -to specify the clock which they consume. All available clocks are defined = as -preprocessor macros in the dt-bindings/clock/rk3328-cru.h headers and can = be -used in device tree sources. Similar macros exist for the reset sources in -these files. - -External clocks: - -There are several clocks that are generated outside the SoC. It is expected -that they are defined using standard clock bindings with following -clock-output-names: - - "xin24m" - crystal input - required, - - "clkin_i2s" - external I2S clock - optional, - - "gmac_clkin" - external GMAC clock - optional - - "phy_50m_out" - output clock of the pll in the mac phy - - "hdmi_phy" - output clock of the hdmi phy pll - optional - -Example: Clock controller node: - - cru: clock-controller@ff440000 { - compatible =3D "rockchip,rk3328-cru"; - reg =3D <0x0 0xff440000 0x0 0x1000>; - rockchip,grf =3D <&grf>; - - #clock-cells =3D <1>; - #reset-cells =3D <1>; - }; - -Example: UART controller node that consumes the clock generated by the clo= ck - controller: - - uart0: serial@ff120000 { - compatible =3D "snps,dw-apb-uart"; - reg =3D <0xff120000 0x100>; - interrupts =3D ; - reg-shift =3D <2>; - reg-io-width =3D <4>; - clocks =3D <&cru SCLK_UART0>; - }; diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.ya= ml b/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.yaml new file mode 100644 index 000000000000..f079c7a2559b --- /dev/null +++ b/Documentation/devicetree/bindings/clock/rockchip,rk3328-cru.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/rockchip,rk3328-cru.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip RK3328 Clock and Reset Unit (CRU) + +maintainers: + - Elaine Zhang + - Heiko Stuebner + +description: | + The RK3328 clock controller generates and supplies clocks to various + controllers within the SoC and also implements a reset controller for SoC + peripherals. + Each clock is assigned an identifier and client nodes can use this ident= ifier + to specify the clock which they consume. All available clocks are define= d as + preprocessor macros in the dt-bindings/clock/rk3328-cru.h headers and ca= n be + used in device tree sources. Similar macros exist for the reset sources = in + these files. + There are several clocks that are generated outside the SoC. It is expec= ted + that they are defined using standard clock bindings with following + clock-output-names: + - "xin24m" - crystal input - required, + - "clkin_i2s" - external I2S clock - optional, + - "gmac_clkin" - external GMAC clock - optional + - "phy_50m_out" - output clock of the pll in the mac phy + - "hdmi_phy" - output clock of the hdmi phy pll - optional + +properties: + compatible: + enum: + - rockchip,rk3328-cru + + reg: + maxItems: 1 + + "#clock-cells": + const: 1 + + "#reset-cells": + const: 1 + + clocks: + maxItems: 1 + + clock-names: + const: xin24m + + rockchip,grf: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the syscon managing the "general register files" (GRF), + if missing pll rates are not changeable, due to the missing pll + lock status. + +required: + - compatible + - reg + - "#clock-cells" + - "#reset-cells" + +additionalProperties: false + +examples: + - | + cru: clock-controller@ff440000 { + compatible =3D "rockchip,rk3328-cru"; + reg =3D <0xff440000 0x1000>; + rockchip,grf =3D <&grf>; + #clock-cells =3D <1>; + #reset-cells =3D <1>; + }; --=20 2.43.0 From nobody Thu Nov 28 13:45:46 2024 Received: from gloria.sntech.de (gloria.sntech.de [185.11.138.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8CAAB183CD1; Mon, 30 Sep 2024 21:50:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.11.138.130 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727733010; cv=none; b=Fcp3X1VMVzDYtH29vSgv+YO5ECwMC9NFNtGFPwdFoBkiSGd6oyRXWqlwkzmENFfOrjOkhjY5jipMM5nLwozYF13fYAOSlfndNRBGJ54fPN1IPGKwhLLze4m/6/6W/Sa+kyg+bN3f5Fc2pw9bJB+Vnd1X0bsbczwHAIAgQvvWguQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727733010; c=relaxed/simple; bh=77thQejIj2seuyPObLi0fp30+zVU5/UZ5IUX2RN4Y4g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lf8y61v5zVpnGpuQHFqAYoSTn847KQ3bBi5Hg3RBJe4xa2XMT3hw7a+CyuVnb/xvQml0WtQnWPHf0l1ybkZ7j/dldhvMGOrNsB/kbSMZjqFeqTMLqerU6kEthyv7Lj82hofdVtdAHZi294IE2m5YqQUOjqoDhDWShdnzklmWyPs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de; spf=pass smtp.mailfrom=sntech.de; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b=yqSuyKJl; arc=none smtp.client-ip=185.11.138.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sntech.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b="yqSuyKJl" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=67sg7Ye9a21J/nowWZO0/sx465l3e+f9MizgGd/B0fE=; b=yqSuyKJlzVat96wNbj32y+LQxs UIKUA29+XkVyLasf0wKmuEV2ofh4wP3SlCiFW2bCOnRzfzI6X4zBJOvEbqMEg15P3sJ4IfeDUNo9q qdiOX1r8Kt6xrNvdzxYWOmPwpo0PjExER2VQvw5tbkX7QQQNf7DYnDrU5B0UyHnhF38Kqi2idCpbp /7h+ayJOOdeiup2nYk+bj6Cfc1+hzAupdUY6KxCdMLmPO1e04eoNcTyurJkyPgrqgM1Rosi+DxehM cyM2K0HRLFrx7ae/q6aqdjaArm8a8uNO2+hBMACrf0aeXjCs/6HXRclruuv0u0pb0tFBE2yBjGv0M Y0z33w8A==; Received: from i5e861925.versanet.de ([94.134.25.37] helo=phil.lan) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1svOHM-0008So-45; Mon, 30 Sep 2024 23:50:04 +0200 From: Heiko Stuebner To: heiko@sntech.de Cc: mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, jbx6244@gmail.com, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/3] arm64: dts: rockchip: fix compatible string rk3328 cru node Date: Mon, 30 Sep 2024 23:50:00 +0200 Message-ID: <20240930215001.1999212-3-heiko@sntech.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240930215001.1999212-1-heiko@sntech.de> References: <20240930215001.1999212-1-heiko@sntech.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Johan Jonker The cru node references undocumented compatibles of "rockchip,cru" and also marks it as syscon. A general rockchip,cru is way too generic to ever be used anywhere, so needs to go away, similarly the cru should not be written to from other places, instead regular clock routines should be used. Both mainline Linux as well as the vendor-kernel up to their 6.1 branch only reference the cru via the normal assigned-clocks, clocks and resets properties and do not get a syscon from the node. Similarly, there is no syscon access by compatible both in mainline nor the vendor-kernel up to their 6.1 branch, through either the rockchip,rk3328-cru nor rockchip,cru compatibles. So these two really are unused in all publically visible places. Sidenote: the vendor-kernel does pretty crazy stuff in the camera interface and tdm driver, where they map the cru separately and set clock muxes and gates directly. This should of course never reach mainline anyway. Signed-off-by: Johan Jonker [update commit message, to explain the unused compatibles] Signed-off-by: Heiko Stuebner Acked-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/rockchip/rk3328.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts= /rockchip/rk3328.dtsi index 16b4faa22e4f..cf98f1af659e 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi @@ -813,7 +813,7 @@ hdmiphy: phy@ff430000 { }; =20 cru: clock-controller@ff440000 { - compatible =3D "rockchip,rk3328-cru", "rockchip,cru", "syscon"; + compatible =3D "rockchip,rk3328-cru"; reg =3D <0x0 0xff440000 0x0 0x1000>; rockchip,grf =3D <&grf>; #clock-cells =3D <1>; --=20 2.43.0 From nobody Thu Nov 28 13:45:46 2024 Received: from gloria.sntech.de (gloria.sntech.de [185.11.138.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3CAEF185E53; 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charset="utf-8" From: Johan Jonker Add clocks property to rk3328 cru node to fix warnings like: 'clocks' is a dependency of 'assigned-clocks' Signed-off-by: Johan Jonker Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/rk3328.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts= /rockchip/rk3328.dtsi index cf98f1af659e..b5cbe7cab10b 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi @@ -815,6 +815,8 @@ hdmiphy: phy@ff430000 { cru: clock-controller@ff440000 { compatible =3D "rockchip,rk3328-cru"; reg =3D <0x0 0xff440000 0x0 0x1000>; + clocks =3D <&xin24m>; + clock-names =3D "xin24m"; rockchip,grf =3D <&grf>; #clock-cells =3D <1>; #reset-cells =3D <1>; --=20 2.43.0