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Tue, 04 Aug 2026 10:05:48 -0700 (PDT) From: Bhargav Joshi Date: Tue, 04 Aug 2026 22:35:05 +0530 Subject: [PATCH v3 1/4] ARM: dts: ti: am57xx-idk-common: Remove unused ext-clk-src property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260804-ti-omap-rtc-v3-1-ba3bbd8af570@gmail.com> References: <20260804-ti-omap-rtc-v3-0-ba3bbd8af570@gmail.com> In-Reply-To: <20260804-ti-omap-rtc-v3-0-ba3bbd8af570@gmail.com> To: Aaro Koskinen , Andreas Kemnade , Kevin Hilman , Roger Quadros , Tony Lindgren , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alexandre Belloni , Keerthy , Afzal Mohammed Cc: linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org, goledhruva@gmail.com, m-chawdhry@ti.com, daniel.baluta@gmail.com, simona.toaca@nxp.com, j.bhargav.u@gmail.com X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1785863118; l=818; i=j.bhargav.u@gmail.com; h=from:subject:message-id; bh=BP5isHWJVSgsQc7eHb27miIKkXny1ILGVxUFS9gjsgw=; b=AglLCpt0Ow4mCeWLX0NY9rtIDhK/08WmnqunooL/nv6BacQqxByO9/HQvU1mtVT1ZJN8n7QoA FKb0J8AydZ9DB4o0MwIVRocvKlO/ncX/sFRjei1eYxdCCcuUFKTEKfM X-Developer-Key: i=j.bhargav.u@gmail.com; a=ed25519; pk=IqNDwUZKECEA+n8wXctFLBbYL9NhFstZNbOznm/nX1k= The 'ext-clk-src' property is a legacy, undocumented boolean property that is entirely unhandled by the rtc-omap driver. The driver instead determines the clock source natively by checking the presence of the "ext-clk" clock via devm_clk_get(). Remove this unnecessary property. Signed-off-by: Bhargav Joshi --- arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi b/arch/arm/bo= ot/dts/ti/omap/am57xx-idk-common.dtsi index 43e3623f079c..ef4bd554e92b 100644 --- a/arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi +++ b/arch/arm/boot/dts/ti/omap/am57xx-idk-common.dtsi @@ -445,7 +445,6 @@ &uart3 { =20 &rtc { status =3D "okay"; - ext-clk-src; }; =20 &mac_sw { --=20 2.55.0 From nobody Fri Oct 2 06:17:21 2026 Received: from mail-pf1-f170.google.com (mail-pf1-f170.google.com [209.85.210.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B4C303F58C8 for ; Tue, 4 Aug 2026 17:06:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.170 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785863174; cv=none; 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Tue, 04 Aug 2026 10:06:02 -0700 (PDT) Received: from [10.15.72.252] ([2409:40c2:5423:e712:2aaf:ae79:67c5:476d]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-13fca52d329sm5147124c88.4.2026.08.04.10.05.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Aug 2026 10:06:02 -0700 (PDT) From: Bhargav Joshi Date: Tue, 04 Aug 2026 22:35:06 +0530 Subject: [PATCH v3 2/4] ARM: dts: ti: am335x-shc: Remove unused ti,no-init property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260804-ti-omap-rtc-v3-2-ba3bbd8af570@gmail.com> References: <20260804-ti-omap-rtc-v3-0-ba3bbd8af570@gmail.com> In-Reply-To: <20260804-ti-omap-rtc-v3-0-ba3bbd8af570@gmail.com> To: Aaro Koskinen , Andreas Kemnade , Kevin Hilman , Roger Quadros , Tony Lindgren , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alexandre Belloni , Keerthy , Afzal Mohammed Cc: linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org, goledhruva@gmail.com, m-chawdhry@ti.com, daniel.baluta@gmail.com, simona.toaca@nxp.com, j.bhargav.u@gmail.com X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1785863118; l=689; i=j.bhargav.u@gmail.com; h=from:subject:message-id; bh=U+tsQLnWyDRDHVr0CTIeZd5q+U3+1+j8XgyYVIUKJgY=; b=d2oaSN2HN8Zp08jvzP1h/JFly/E/A1bZXz8xT7Oc/auJ2ktdbJ1oD80wjusZOUj+ufvlK397Z ooo2sDDDyeVCR6cH+M55M9bEOxqRKxtHFy8I3vZfdgva51LLoPBRW84 X-Developer-Key: i=j.bhargav.u@gmail.com; a=ed25519; pk=IqNDwUZKECEA+n8wXctFLBbYL9NhFstZNbOznm/nX1k= The 'ti,no-init' property is a legacy, undocumented boolean property that is entirely unhandled by the rtc-omap driver. Remove this unnecessary property from dts. Signed-off-by: Bhargav Joshi --- arch/arm/boot/dts/ti/omap/am335x-shc.dts | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/arm/boot/dts/ti/omap/am335x-shc.dts b/arch/arm/boot/dts/t= i/omap/am335x-shc.dts index 597482822608..2b946823928f 100644 --- a/arch/arm/boot/dts/ti/omap/am335x-shc.dts +++ b/arch/arm/boot/dts/ti/omap/am335x-shc.dts @@ -241,10 +241,6 @@ &mmc3 { status =3D "okay"; }; =20 -&rtc { - ti,no-init; -}; - &sham { status =3D "okay"; }; --=20 2.55.0 From nobody Fri Oct 2 06:17:21 2026 Received: from mail-pj1-f43.google.com (mail-pj1-f43.google.com [209.85.216.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4D3754854F7 for ; Tue, 4 Aug 2026 17:06:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785863195; cv=none; b=jg4gEvwVUUje6fXuCMRl4/YDxK5LO6O9MEFhpTjM5IUyoitGQIld2mCdw1YD0MLCNiV4NU+YhPU8cntcjHXsXbSC3QqeYyRzf9pT5ujvJzYKQW+NZRKstNi5yecDhEisatzfGXOrpR00ye8+Bag9+noKZXjAfbMurvzzvwjksdk= ARC-Message-Signature: i=1; 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Tue, 04 Aug 2026 10:06:17 -0700 (PDT) Received: from [10.15.72.252] ([2409:40c2:5423:e712:2aaf:ae79:67c5:476d]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-13fca52d329sm5147124c88.4.2026.08.04.10.06.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Aug 2026 10:06:17 -0700 (PDT) From: Bhargav Joshi Date: Tue, 04 Aug 2026 22:35:07 +0530 Subject: [PATCH v3 3/4] ARM: dts: omap: dra7: add da830 fallback to am3352 rtc compatible string Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260804-ti-omap-rtc-v3-3-ba3bbd8af570@gmail.com> References: <20260804-ti-omap-rtc-v3-0-ba3bbd8af570@gmail.com> In-Reply-To: <20260804-ti-omap-rtc-v3-0-ba3bbd8af570@gmail.com> To: Aaro Koskinen , Andreas Kemnade , Kevin Hilman , Roger Quadros , Tony Lindgren , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alexandre Belloni , Keerthy , Afzal Mohammed Cc: linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org, goledhruva@gmail.com, m-chawdhry@ti.com, daniel.baluta@gmail.com, simona.toaca@nxp.com, j.bhargav.u@gmail.com X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1785863118; l=939; i=j.bhargav.u@gmail.com; h=from:subject:message-id; bh=rlYXKYm7bxRlc5nv82AOtjM/efwnX96ZRyu8nzXNm1w=; b=jRaD22MIYUlWYtJnE09LRZECtM9x23ueO9p7GAh/xAN4sHi7zwJ8+VFGp8hdOvWk7/EHjCRK9 1vYWS0vz4qBACdUS0ueiRmyY0HGdOW06i1cXXM0Jz34WVwuJjLnUEV9 X-Developer-Key: i=j.bhargav.u@gmail.com; a=ed25519; pk=IqNDwUZKECEA+n8wXctFLBbYL9NhFstZNbOznm/nX1k= The AM3352 RTC is compatible with the DA830 RTC. Update the compatible string to include the ti,da830-rtc fallback to align with the device tree bindings and other board files. Signed-off-by: Bhargav Joshi --- arch/arm/boot/dts/ti/omap/dra7-l4.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/ti/omap/dra7-l4.dtsi b/arch/arm/boot/dts/ti/= omap/dra7-l4.dtsi index c8d325b0f57b..9e9609cf3188 100644 --- a/arch/arm/boot/dts/ti/omap/dra7-l4.dtsi +++ b/arch/arm/boot/dts/ti/omap/dra7-l4.dtsi @@ -3556,7 +3556,7 @@ rtctarget: target-module@38000 { /* 0x48838000, ap = 29 12.0 */ ranges =3D <0x0 0x38000 0x1000>; =20 rtc: rtc@0 { - compatible =3D "ti,am3352-rtc"; + compatible =3D "ti,am3352-rtc", "ti,da830-rtc"; reg =3D <0x0 0x100>; interrupts =3D , ; --=20 2.55.0 From nobody Fri Oct 2 06:17:21 2026 Received: from mail-pj1-f45.google.com (mail-pj1-f45.google.com [209.85.216.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D9AFF486640 for ; Tue, 4 Aug 2026 17:06:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Tue, 04 Aug 2026 10:06:33 -0700 (PDT) Received: from [10.15.72.252] ([2409:40c2:5423:e712:2aaf:ae79:67c5:476d]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-13fca52d329sm5147124c88.4.2026.08.04.10.06.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Aug 2026 10:06:32 -0700 (PDT) From: Bhargav Joshi Date: Tue, 04 Aug 2026 22:35:08 +0530 Subject: [PATCH v3 4/4] dt-bindings: rtc: ti,omap-rtc: Convert to DT schema Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260804-ti-omap-rtc-v3-4-ba3bbd8af570@gmail.com> References: <20260804-ti-omap-rtc-v3-0-ba3bbd8af570@gmail.com> In-Reply-To: <20260804-ti-omap-rtc-v3-0-ba3bbd8af570@gmail.com> To: Aaro Koskinen , Andreas Kemnade , Kevin Hilman , Roger Quadros , Tony Lindgren , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alexandre Belloni , Keerthy , Afzal Mohammed Cc: linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org, goledhruva@gmail.com, m-chawdhry@ti.com, daniel.baluta@gmail.com, simona.toaca@nxp.com, j.bhargav.u@gmail.com X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1785863118; l=5941; i=j.bhargav.u@gmail.com; h=from:subject:message-id; bh=VbB4Wil3UCJk1uCa8RVTSXImGevkwsTjzv2S+pJ7HVg=; b=hK83DJtdql0s9fVh0pB1mN+aT5VcopcY4vEC3oE/GWqdpf61rbyaapMGXgY8nsB8zlSmT0CHu blXDB+X02dWAAIUK5xAgstu5LtMM1MuV3jlRiN16zVo+9IRzMTsk5tf X-Developer-Key: i=j.bhargav.u@gmail.com; a=ed25519; pk=IqNDwUZKECEA+n8wXctFLBbYL9NhFstZNbOznm/nX1k= Convert the Texas Instruments OMAP Real Time Clock (RTC) binding from the legacy text format to the DT schema. Mark 'ti,hwmods' as deprecated as it is no longer used, it is kept to support legacy boards. Signed-off-by: Bhargav Joshi Reviewed-by: Rob Herring (Arm) --- Documentation/devicetree/bindings/rtc/rtc-omap.txt | 53 -------- .../devicetree/bindings/rtc/ti,omap-rtc.yaml | 140 +++++++++++++++++= ++++ 2 files changed, 140 insertions(+), 53 deletions(-) diff --git a/Documentation/devicetree/bindings/rtc/rtc-omap.txt b/Documenta= tion/devicetree/bindings/rtc/rtc-omap.txt deleted file mode 100644 index 062ebb14cecf..000000000000 --- a/Documentation/devicetree/bindings/rtc/rtc-omap.txt +++ /dev/null @@ -1,53 +0,0 @@ -TI Real Time Clock - -Required properties: -- compatible: - - "ti,da830-rtc" - for RTC IP used similar to that on DA8xx SoC family. - - "ti,am3352-rtc" - for RTC IP used similar to that on AM335x SoC family. - This RTC IP has special WAKE-EN Register to enable - Wakeup generation for event Alarm. It can also be - used to control an external PMIC via the - pmic_power_en pin. - - "ti,am4372-rtc" - for RTC IP used similar to that on AM437X SoC family. -- reg: Address range of rtc register set -- interrupts: rtc timer, alarm interrupts in order - -Optional properties: -- system-power-controller: whether the rtc is controlling the system power - through pmic_power_en -- clocks: Any internal or external clocks feeding in to rtc -- clock-names: Corresponding names of the clocks -- pinctrl-0: a phandle pointing to the pin settings for the device -- pinctrl-names: should be "default" - -Optional subnodes: -- generic pinctrl node - -Required pinctrl subnodes properties: -- pins - Names of ext_wakeup pins to configure - -Optional pinctrl subnodes properties: -- input-enable - Enables ext_wakeup -- ti,active-high - Set input active high (by default active low) - -Example: - -rtc@1c23000 { - compatible =3D "ti,da830-rtc"; - reg =3D <0x23000 0x1000>; - interrupts =3D <19 - 19>; - interrupt-parent =3D <&intc>; - system-power-controller; - clocks =3D <&clk_32k_rtc>, <&clk_32768_ck>; - clock-names =3D "ext-clk", "int-clk"; - - pinctrl-0 =3D <&ext_wakeup>; - pinctrl-names =3D "default"; - - ext_wakeup: ext-wakeup { - pins =3D "ext_wakeup0"; - input-enable; - ti,active-high; - }; -}; diff --git a/Documentation/devicetree/bindings/rtc/ti,omap-rtc.yaml b/Docum= entation/devicetree/bindings/rtc/ti,omap-rtc.yaml new file mode 100644 index 000000000000..02b3c23cf435 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/ti,omap-rtc.yaml @@ -0,0 +1,140 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/ti,omap-rtc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments OMAP Real Time Clock + +maintainers: + - Keerthy + - Afzal Mohammed + +description: + The OMAP RTC is a year/month/day/hours/minutes/seconds BCD clock with + century-range alarm matching, driven by the 32kHz clock. + +properties: + compatible: + oneOf: + - const: ti,da830-rtc + - items: + - const: ti,am3352-rtc + - const: ti,da830-rtc + - items: + - const: ti,am4372-rtc + - const: ti,am3352-rtc + - const: ti,da830-rtc + + reg: + maxItems: 1 + + interrupts: + minItems: 2 + maxItems: 2 + + system-power-controller: + type: boolean + description: + Indicates that this RTC controls system power via the pmic_power_en = pin. + + clocks: + minItems: 1 + maxItems: 2 + + clock-names: + minItems: 1 + items: + - enum: [ext-clk, int-clk] + - const: int-clk + + pinctrl-0: + description: + Phandle to pin configuration for the external wakeup pins. + + pinctrl-names: + minItems: 1 + + ti,hwmods: + $ref: /schemas/types.yaml#/definitions/string + description: + Name of the hwmod associated with the RTC. + const: rtc + deprecated: true + +patternProperties: + "^ext-wakeup(-[0-9]+)?$": + type: object + + description: + Child node describing external wakeup pin configuration. + + properties: + pins: + pattern: '^ext_wakeup[0-3]$' + + input-enable: + type: boolean + description: + Enables the external wakeup input on the selected pin. + + ti,active-high: + type: boolean + description: + Sets the wakeup input polarity to active high. By default the + input is active low. + + required: + - pins + + additionalProperties: false + +required: + - compatible + - reg + - interrupts + +allOf: + - $ref: rtc.yaml# + - if: + not: + properties: + compatible: + contains: + const: ti,am3352-rtc + then: + properties: + system-power-controller: false + patternProperties: + "^ext-wakeup(-[0-9]+)?$": false + +unevaluatedProperties: false + +examples: + - | + rtc@23000 { + compatible =3D "ti,da830-rtc"; + reg =3D <0x23000 0x1000>; + interrupts =3D <19>, <19>; + clocks =3D <&clk_32768_ck>; + clock-names =3D "int-clk"; + }; + + - | + rtc@0 { + compatible =3D "ti,am3352-rtc", "ti,da830-rtc"; + reg =3D <0x0 0x1000>; + interrupts =3D <75>, <76>; + system-power-controller; + clocks =3D <&clk_32k_rtc>, <&clk_32768_ck>; + clock-names =3D "ext-clk", "int-clk"; + + pinctrl-0 =3D <&ext_wakeup>; + pinctrl-names =3D "default"; + + ext-wakeup { + pins =3D "ext_wakeup0"; + input-enable; + ti,active-high; + }; + }; --=20 2.55.0