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[23.128.96.18]) by mx.google.com with ESMTP id m7si5562839eji.498.2021.01.16.16.26.01; Sat, 16 Jan 2021 16:26:02 -0800 (PST) Received-SPF: pass (google.com: domain of linux-arm-msm-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=a6xn4dTZ; spf=pass (google.com: domain of linux-arm-msm-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-arm-msm-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726785AbhAQAYn (ORCPT + 15 others); Sat, 16 Jan 2021 19:24:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726864AbhAQAYm (ORCPT ); Sat, 16 Jan 2021 19:24:42 -0500 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD61DC061575 for ; Sat, 16 Jan 2021 16:24:01 -0800 (PST) Received: by mail-lj1-x22b.google.com with SMTP id f11so14453945ljm.8 for ; Sat, 16 Jan 2021 16:24:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=gHRQ0xxynPvZxQkJ0XwkKO8LykVQgvPwVrEG9Eu8CIA=; b=a6xn4dTZ2IFPAX0OuBOTeKJNnVYS33dqQWXOkWew7MdddpflJN/lH4msVuofd7VNE1 uSdDZWYEmIVjE1pkdkEaoUlcRhhVl8QS7YgwMOa3nUL8T0/6LV89dXyV5cbqm+/On3+B QD3gXecTGRMAgFZnedB4sPbuyf3vOJdVTSDsNInZc4y1cM1utPNxb57fY4fq33AbobcZ uGPj5UGNfFfgTTAnM68lTSoVLNz00eqkd4smeVYNzh0CO/86ISInkRr5NcupXimuJOVH unHFEgPdgxJIZHJEbvxYKJVKodGDIrbZ6Ouxnhy4O2dvxAD6+V99V6FD5rOCPjrjzJOS 3Tsg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=gHRQ0xxynPvZxQkJ0XwkKO8LykVQgvPwVrEG9Eu8CIA=; b=nYmlZtTDOU0TNh+/8MlsA63MyEz1rUZ/z/NVgm7PrD2whqh7I7488wEvkCLluTnmvq 83w0yVwHt2Yc4NkBHCq4227CsbuH4WnI300clX4wEgXDmcHHh8HLNVWCKN+S8S2TqYKS 5vY2fTCfzu2CNFLuDsSI231APZhBUBBRJ6LdDVeKXuvkIPxANU3n7PzzxSAcnmFK5Qeu 19z4IoW3eOMCGeu1hUZELPtK0KRa1iJxTRe5UjhuO7ju/Vm10sa+N0rYUjJYTRcPF/Lm h4VgE7b9E6QEzllfbWiL4H7FUo+9BWEXY2aoZqd+7HgCF5FO/hS+aUgbNDcXN0OxRICl YuiA== X-Gm-Message-State: AOAM5302UHCAr/0dOrb3fZ8b99Gru1YXfuSuOj5w+XVHpMkD9a9uGhHs Cn0NweLsySMbytZZto/Ax3TmbQ== X-Received: by 2002:a2e:9985:: with SMTP id w5mr8241208lji.122.1610843038203; Sat, 16 Jan 2021 16:23:58 -0800 (PST) Received: from eriador.lumag.spb.ru ([94.25.228.101]) by smtp.gmail.com with ESMTPSA id q1sm962468lfu.48.2021.01.16.16.23.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 Jan 2021 16:23:57 -0800 (PST) From: Dmitry Baryshkov To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Cc: Daniel Vetter , David Airlie , Andrzej Hajda , Neil Armstrong , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Vinod Koul , Sam Ravnborg , Manivannan Sadhasivam Subject: [PATCH v3 1/3] drm/bridge/lontium-lt9611uxc: fix waiting for EDID to become available Date: Sun, 17 Jan 2021 03:23:53 +0300 Message-Id: <20210117002355.435860-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210117002355.435860-1-dmitry.baryshkov@linaro.org> References: <20210117002355.435860-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org - Call wake_up() when EDID ready event is received to wake wait_event_interruptible_timeout() - Increase waiting timeout, reading EDID can take longer than 100ms, so let's be on a safe side. Signed-off-by: Dmitry Baryshkov Fixes: 0cbbd5b1a012 ("drm: bridge: add support for lontium LT9611UXC bridge") --- drivers/gpu/drm/bridge/lontium-lt9611uxc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) -- 2.29.2 diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c index 0c98d27f84ac..a59e811f1705 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c @@ -145,8 +145,10 @@ static irqreturn_t lt9611uxc_irq_thread_handler(int irq, void *dev_id) lt9611uxc_unlock(lt9611uxc); - if (irq_status & BIT(0)) + if (irq_status & BIT(0)) { lt9611uxc->edid_read = !!(hpd_status & BIT(0)); + wake_up_all(<9611uxc->wq); + } if (irq_status & BIT(1)) { if (lt9611uxc->connector.dev) @@ -465,7 +467,7 @@ static enum drm_connector_status lt9611uxc_bridge_detect(struct drm_bridge *brid static int lt9611uxc_wait_for_edid(struct lt9611uxc *lt9611uxc) { return wait_event_interruptible_timeout(lt9611uxc->wq, lt9611uxc->edid_read, - msecs_to_jiffies(100)); + msecs_to_jiffies(500)); } static int lt9611uxc_get_edid_block(void *data, u8 *buf, unsigned int block, size_t len)