From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.4]) (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 08CDC3019D9; Wed, 14 Oct 2026 02:52:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791946327; cv=none; b=LmXfv8cMpPDttfVm7GIiDCFmyaz7rSnS1pRzwnUmGOhIVoGOcpqDRMjTQQWwZiCNtFv7/o7jpoS7hY3qM5JPuFrSn7SoYwzixEjpjFpVW5PdnLgJqiTtGK8ok6k0AD3LcActYn59aN9qVTcGothZ43enLSRpU+C1I5I2pzX2pq4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791946327; c=relaxed/simple; bh=ci6lwH7Wlf5uolwLWEhz1tMpvPXE5t0FdSARax8LoT8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=u+HE8QieSBzAp+BnSGLbZ73RX46QxIjDmzv6P4GuqD+2WPjTxf4Z5tE9poPR3Cc6IsDvEL/OnJU8UvsP7364lAk+wLti9xaIxQEwi2Lvz17wiTdAcnJt6EbFWb1mVd2E1agg2gVVM7/0P9SwUjNbSuma9/LTP7lC+iheyq8Sa/0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=GCS0FuDw; arc=none smtp.client-ip=220.197.31.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="GCS0FuDw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=ci 6lwH7Wlf5uolwLWEhz1tMpvPXE5t0FdSARax8LoT8=; b=GCS0FuDwBl3yq1Hua4 y1Q3fmf0QcxS/JH+v1IOl2TFzWR1vTnzfFxqpmfCEXxcyiZBP9k2cDGR1YTP4Dwp csgoq5rPvj3Rpz0WDxWH1HszpLHjuyMKJ0pUjdJyihVvMkK417ctiFAIvd5jzxa0 KjGq7PZgk1UdlaOCvRfl3J6OU= Received: from localhost.localdomain (unknown []) by gzsmtp2 (Coremail) with SMTP id PSgvCgD3H9kt7s5qJrRlEA--.21370S2; Wed, 14 Oct 2026 10:51:26 +0800 (CST) From: Pengpeng Hou To: konrad.dybcio@oss.qualcomm.com Cc: robert.marko@sartura.hr, luka.perkov@sartura.hr, vkoul@kernel.org, neil.armstrong@linaro.org, mani@kernel.org, p.zabel@pengutronix.de, linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, hppiscas@163.com Subject: Re: [RFC PATCH] phy: qcom: ipq4019-usb: Propagate reset operation failures Date: Wed, 14 Oct 2026 10:51:24 +0800 Message-ID: <20261014025124.81874-1-hppiscas@163.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: References: <20260828091857.8581-1-pengpeng@iscas.ac.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:PSgvCgD3H9kt7s5qJrRlEA--.21370S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrJry3Ar43JF4UZrW8Gr13CFg_yoWxWrb_u3 4Skw17Aw4kta1UtF4UKr43tF9IgrWDAr1rW395ta13t348JrsrWFWDAry5uayrAF4aqr93 Gr1Uu34fuwnrZjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7VUjahF7UUUUU== X-CM-SenderInfo: 5kssx2xfdvqiywtou0bp/xtbC7g4V3WrO7i67vwAA3I Hi Konrad, Your comments on the declaration layout and unchecked rollback return are valid. Rechecking the provider exposed a more fundamental limitation in the RFC's premise: the in-tree IPQ4019 DT uses GCC resets, and qcom_reset_set_assert() returns zero after the regmap operations. I therefore do not have evidence that the hardware-failure case described in the RFC is reported through this provider. Generic reset API errors alone do not establish that case on this platform. Please keep this RFC on hold. I will not respin it as a demonstrated IPQ4019 bug fix based only on the local return-value checks. Thanks, Pengpeng