From nobody Sun May 10 15:47:51 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6594C433F5 for ; Fri, 29 Apr 2022 16:09:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238152AbiD2QNF (ORCPT ); Fri, 29 Apr 2022 12:13:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378470AbiD2QND (ORCPT ); Fri, 29 Apr 2022 12:13:03 -0400 Received: from mail-wr1-x42c.google.com (mail-wr1-x42c.google.com [IPv6:2a00:1450:4864:20::42c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 69942D76DE for ; Fri, 29 Apr 2022 09:09:44 -0700 (PDT) Received: by mail-wr1-x42c.google.com with SMTP id u3so11408436wrg.3 for ; Fri, 29 Apr 2022 09:09:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=JWMAn/Bn8ohxKs6BvOjyYpQ71mruJeatGTg+RHO7TDU=; b=hqE8BOyx/OO+QvPg/NFycXPm1WifkvLBScYG4S0tODof3BwXf9egD1HH+z/2HRa88h Wl7/0Mu5TyFJxNZvCEJOUAWZbSqhagKV5cXC1EPTltZOm4HOQfkYRJFYm+NO0elI/Kf6 oRRHthAd3vSAuzSLhR2udVVEaxcYJsuu039DoQrrV9fVH8i+353v34sqg/cpDy+pHydX St2j+JlRt5iJfrZkM+stvUmzv5ZqTFhipJgLkOli6YzuyxEbZXQ+esnxPXD3n/jPxNmF C/pbaVSfPlAjSN6oCRYpyTD569PX15RVUkHolHBFAJbegJQC9NB6kcsLRyG+uWkFk+Ix JKEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=JWMAn/Bn8ohxKs6BvOjyYpQ71mruJeatGTg+RHO7TDU=; b=2C1Lwjt5hhpdEZAaw6TaPvwzkYT762IMaUDwuKrbNqWfd355m5DgXNDpWW5Ftzjgdi Um8sZWk0hRkiME72/4kTx30Bytn2tazEujt7+XjKROI3R+G7nAAvrZPvf8ePW57Z1ZJk H/LJyetyVGQxLhe7dXn2eIy14dxJn3E9QVMErsbXT1qy+t4HzAwys3c3kTmLGWgimsFG WBMqWiEwhuTCgqqHPfhWnKYpqBlhUJbfD6ubuQNyNwbvyahJeHy0w4augqpYbdTroL6G 3w81Teh514aLpawoQsLqdYV6D/gEBVpUOtMyC9GfIUiX5QRLprDPoS2fwR4vQp87ByQq Vx/w== X-Gm-Message-State: AOAM531+u7IG/fQseeX+YMZfUUoD9ZPD3KXVlr+qCpTHL0Sg960uR5ZG +gYDq3MbWBIFEDV3VhkhWDTqamlXHgeehA== X-Google-Smtp-Source: ABdhPJzZ/2OiJVcoHnRZLspX+t/FHdW4FlaxULi9G0U+ixxQ6FdHjGbd2IzZrLvCjcTb7ZyapRlOgg== X-Received: by 2002:a05:6000:1844:b0:20a:f429:f80c with SMTP id c4-20020a056000184400b0020af429f80cmr8474722wri.643.1651248582988; Fri, 29 Apr 2022 09:09:42 -0700 (PDT) Received: from srini-hackbox.lan (cpc90716-aztw32-2-0-cust825.18-1.cable.virginm.net. [86.26.103.58]) by smtp.gmail.com with ESMTPSA id z11-20020a05600c220b00b00393ffde5f5fsm7827863wml.36.2022.04.29.09.09.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Apr 2022 09:09:42 -0700 (PDT) From: Srinivas Kandagatla To: vkoul@kernel.org Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, pierre-louis.bossart@linux.intel.com, bard.liao@intel.com, Srinivas Kandagatla , Srinivasa Rao Mandadapu Subject: [PATCH] soundwire: qcom: adjust autoenumeration timeout Date: Fri, 29 Apr 2022 17:09:28 +0100 Message-Id: <20220429160928.24614-1-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Currently timeout for autoenumeration during probe and bus reset is set to 2 secs which is really a big value. This can have an adverse effect on boot time if the slave device is not ready/reset. This was the case with wcd938x which was not reset yet but we spent 2 secs waiting in the soundwire controller probe. Reduce this time to 1/10 of Hz which should be good enough time to finish autoenumeration if any slaves are available on the bus. Reported-by: Srinivasa Rao Mandadapu Signed-off-by: Srinivas Kandagatla --- drivers/soundwire/qcom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index da1ad7ebb1aa..432e5cb9a4d2 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -105,7 +105,7 @@ =20 #define SWRM_SPECIAL_CMD_ID 0xF #define MAX_FREQ_NUM 1 -#define TIMEOUT_MS (2 * HZ) +#define TIMEOUT_MS (HZ/10) #define QCOM_SWRM_MAX_RD_LEN 0x1 #define QCOM_SDW_MAX_PORTS 14 #define DEFAULT_CLK_FREQ 9600000 --=20 2.21.0