From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from zg8tmtyylji0my4xnjeumjiw.icoremail.net (zg8tmtyylji0my4xnjeumjiw.icoremail.net [162.243.161.220]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 43F4C3B14B8; Fri, 3 Jul 2026 09:34:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=162.243.161.220 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783071275; cv=none; b=T73x9XryoOvy+pE5z+8CeIYqEavKKQE+8R0Cd58SrCkktqqwbF41v/GnY6HjAKr0+1+4MoJXboJg86+7+xTJl2tVtXy197D2MB5PFjDhzqcilI87nvZGo9K+4Bcdb7FNZ9ndTQcnitOqX9CylPDvVtcyNGnFkR3j6OjtRsJZfo4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783071275; c=relaxed/simple; bh=OLOJA9GaM38w2ZHrbkNh4EXEkIt+8RX1ScKXmXIPtPI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Rul4VIfP0L55BvhXrHHR0b9LV9fPWu7W2qFYBqvNGl11Ng3I/Jek81gQRqapNrgHf/TXyPF9zjWXaVpKP6mkG/Q8WRi563IA33ihqQ9HqbtPpMkaBOwuJn0/c0yAW8BpZvwyrerHmKFaEHcK4r7j+GbJQ0il0E0vO6G7cU658aM= 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=162.243.161.220 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 TQJkCgAnPaAZgkdqizsxAA--.36766S2; Fri, 03 Jul 2026 17:34:19 +0800 (CST) From: Xuyang Dong To: ukleinek@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, ben-linux@fluff.org, ben.dooks@codethink.co.uk, p.zabel@pengutronix.de, linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: ningyu@eswincomputing.com, linmin@eswincomputing.com, xuxiang@eswincomputing.com, wangguosheng@eswincomputing.com, pinkesh.vaghela@einfochips.com, Xuyang Dong , Conor Dooley Subject: [PATCH v10 2/3] dt-bindings: pwm: dwc: Add eswin compatible Date: Fri, 3 Jul 2026 17:34:14 +0800 Message-Id: <20260703093414.644-1-dongxuyang@eswincomputing.com> X-Mailer: git-send-email 2.31.1.windows.1 In-Reply-To: <20260703093308.482-1-dongxuyang@eswincomputing.com> References: <20260703093308.482-1-dongxuyang@eswincomputing.com> Precedence: bulk X-Mailing-List: linux-pwm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:TQJkCgAnPaAZgkdqizsxAA--.36766S2 X-Coremail-Antispam: 1UD129KBjvJXoW7WFyrKryDXry7CFy7Xw4xZwb_yoW8uF4rpF 4furyvqw1fXr17Xws5XF10k3W3Xas5JFW3Kr1xtrWUCa90qF4jqFW3KFn0yFWUZr4I9ry3 Wa93ur15A3Wj9r7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUU9G14x267AKxVW5JVWrJwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4U JVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gc CE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_JF0_Jw1lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2 Y2ka0xkIwI1lc7CjxVAaw2AFwI0_GFv_Wrylc2xSY4AK6svPMxAIw28IcxkI7VAKI48JMx C20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAF wI0_JrI_JrWlx4CE17CEb7AF67AKxVW8ZVWrXwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20x vE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20EY4v2 0xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxV W8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7sRiKsUtUUUUU== X-CM-SenderInfo: pgrqw5xx1d0w46hv4xpqfrz1xxwl0woofrz/ 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. Acked-by: Conor Dooley Signed-off-by: Xuyang Dong --- .../bindings/pwm/snps,dw-apb-timers-pwm2.yaml | 32 ++++++++++++++++--- 1 file changed, 28 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 213fdaef25d9..9a9a24ddc61b 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 @@ -59,6 +59,21 @@ required: - clocks - clock-names +allOf: + - $ref: pwm.yaml# + + - if: + properties: + compatible: + contains: + const: eswin,eic7700-pwm + then: + properties: + resets: + maxItems: 1 + required: + - resets + additionalProperties: false examples: @@ -70,3 +85,12 @@ 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