From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from azure-sdnproxy.icoremail.net (azure-sdnproxy.icoremail.net [4.193.249.245]) by smtp.subspace.kernel.org (Postfix) with ESMTP id DF190411A03; Thu, 30 Jul 2026 11:15:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=4.193.249.245 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785410155; cv=none; b=Jxz1e+sGkRkc/FiPbMtV2sOvh2jA6Nd0ZuFGBfcH761WkKdm3otrxTDknnPd/X79XZkcab3ovpg9736Xa26lI0/COyHjrcnUjO5qkqkkP9r84inTFhXY0whnPmO4d8qiftk4aEd3CVVwC3/83JEPirpheNIx55pTC8o+gxDoaoY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785410155; c=relaxed/simple; bh=Ls9kE8/mTTNfCpcNGnqUTiMNmDuZgrZUzm3EiD39aE8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=QD0Yzd4fUs3OGtS4+/5gZ+URDlC9nHiW/WwfAn8mlAUnqNpdX2XjPrTqyHlkBMubUWc6Hqug9BC/ypM2sLXMBXXO/4U18BUI+Kzhg9P0GRYY1qlH9dIWDL1fb7uQeHEobnnS/yWZ2VPTiDPkXwnRMW4kchG1sNoP1O8iwGQpLiI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=eswincomputing.com; spf=pass smtp.mailfrom=eswincomputing.com; arc=none smtp.client-ip=4.193.249.245 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=eswincomputing.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=eswincomputing.com Received: from E0005152DT.eswin.cn (unknown [10.12.96.41]) by app2 (Coremail) with SMTP id TQJkCgCXnpxaMmtq5M43AA--.4935S2; Thu, 30 Jul 2026 19:15:39 +0800 (CST) From: dongxuyang@eswincomputing.com To: ukleinek@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, ben-linux@fluff.org, ben.dooks@codethink.co.uk, linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, p.zabel@pengutronix.de, daniel.lezcano@kernel.org, tglx@kernel.org Cc: ningyu@eswincomputing.com, linmin@eswincomputing.com, xuxiang@eswincomputing.com, wangguosheng@eswincomputing.com, pinkesh.vaghela@einfochips.com, Xuyang Dong Subject: [PATCH v14 2/5] dt-bindings: pwm: dwc: Add eswin compatible Date: Thu, 30 Jul 2026 19:15:34 +0800 Message-Id: <20260730111534.1834-1-dongxuyang@eswincomputing.com> X-Mailer: git-send-email 2.31.1.windows.1 In-Reply-To: <20260730111425.1680-1-dongxuyang@eswincomputing.com> References: <20260730111425.1680-1-dongxuyang@eswincomputing.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:TQJkCgCXnpxaMmtq5M43AA--.4935S2 X-Coremail-Antispam: 1UD129KBjvJXoW7Ww43uw4fXrW5XF1xJr1kKrg_yoW8tFWDpF 4fCrWvqw1fXr17Zws5XF18C3Waqan5AF43Kr1xtr4UCa90qFWjqFW3Krn8ZFW7Zr4xZrW3 Wan3ur13A3Wj9r7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBm14x267AKxVW5JVWrJwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26F1j6w1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4U JVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gc CE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jrv_JF1lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2 Y2ka0xkIwI1lw4CEc2x0rVAKj4xxMxkF7I0En4kS14v26r4a6rW5MxkIecxEwVCm-wCF04 k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18 MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr4 1lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr1U MIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I 8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjTRNSdgDUUUU X-CM-SenderInfo: pgrqw5xx1d0w46hv4xpqfrz1xxwl0woofrz/ From: Xuyang Dong EIC7700 integrates the DesignWare PWM IP described by the generic snps,dw-apb-timers-pwm2 binding. On this SoC, the presetn and timer_N_resetn inputs are physically tied together to a single reset line, so exactly one reset is both required and sufficient, unlike the generic binding where up to two independent lines are optional. Add the eswin,eic7700-pwm compatible string and constrain its resets property to exactly one entry. Signed-off-by: Xuyang Dong --- .../bindings/pwm/snps,dw-apb-timers-pwm2.yaml | 40 +++++++++++++++++-- 1 file changed, 36 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/pwm/snps,dw-apb-timers-pwm2.yaml b/Documentation/devicetree/bindings/pwm/snps,dw-apb-timers-pwm2.yaml index 1f9d72f9f359..87a56ffed09d 100644 --- a/Documentation/devicetree/bindings/pwm/snps,dw-apb-timers-pwm2.yaml +++ b/Documentation/devicetree/bindings/pwm/snps,dw-apb-timers-pwm2.yaml @@ -20,12 +20,11 @@ description: instead of having to encode the IP version number in the device tree compatible. -allOf: - - $ref: pwm.yaml# - properties: compatible: - const: snps,dw-apb-timers-pwm2 + enum: + - snps,dw-apb-timers-pwm2 + - eswin,eic7700-pwm reg: maxItems: 1 @@ -44,6 +43,7 @@ properties: - const: timer resets: + minItems: 1 items: - description: Interface bus (presetn) reset - description: PWM timer logic (timer_N_resetn) reset @@ -64,6 +64,29 @@ required: - clocks - clock-names +allOf: + - $ref: pwm.yaml# + + - if: + properties: + compatible: + contains: + const: eswin,eic7700-pwm + then: + properties: + resets: + items: + - description: Combined APB interface and timer logic reset + reset-names: false + required: + - resets + else: + properties: + resets: + minItems: 2 + reset-names: + minItems: 2 + additionalProperties: false examples: @@ -75,3 +98,12 @@ examples: clocks = <&bus>, <&timer>; clock-names = "bus", "timer"; }; + - | + pwm@50818000 { + compatible = "eswin,eic7700-pwm"; + reg = <0x50818000 0x4000>; + #pwm-cells = <3>; + clocks = <&bus>, <&timer>; + clock-names = "bus", "timer"; + resets = <&reset>; + }; -- 2.34.1