From patchwork Mon Apr 15 09:41:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 789121 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 F12773EA96 for ; Mon, 15 Apr 2024 09:41:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713174113; cv=none; b=dKGBHH5dQDLdtldoD8zf7uzDGeSQyJhPHGCYI3lhENxY6sa4zm4jssOkt4Veq2tLOfeDpSlj1fACAjCrplzPbO8fexWp/UkhJNqFd2NSd95evoCj9rQkAZ4OHgiPvM9GAhojew3KxJbws/M4qth82hpjsWIg405O0gW/nTWSpbc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713174113; c=relaxed/simple; bh=soogh2Kl4OCTxsK8RSBuV4VmMnuEw2/vj6QNAvJ3kdM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bhRIDIcAyS7gN2H9djWAFWiu05IMVPLgNXzDH+xNo9Sddh/YpiI/FuoMOtx1E4D/eyMcb5e2FxbdCPmk+mZrPrt2JC+aeUCiuEFC3XX4pK48zOKau9vdJME/RmQ7PcdjEPp8RfEI/lC8VeT+FCQbG+GCQkG1JEHYXkrYSNadWmg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=UXVDzmbj; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="UXVDzmbj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1713174109; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0kRsVSPkQfYy3ExT7223wBLMdl5dF1rzos3a1fVd3B4=; b=UXVDzmbjGyntGRRrBPzJCDgGejKXFAjmCAMvsuug1dBaN8I7vmsgMYCR8H4Rbjt3f3fyJd q2i8Aj72o4dueXpROPY7OpuLtJm++O7PZtdOZOrjwZ84AZCWxbVu14C6T/RZai0J8hu6TV A6Orx4vyRJM1QxhLYVA1Yheac+x0EGk= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-627-oMBqdxTzMMCtMx1nzIVkKw-1; Mon, 15 Apr 2024 05:41:48 -0400 X-MC-Unique: oMBqdxTzMMCtMx1nzIVkKw-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id B5C0E3C025C3; Mon, 15 Apr 2024 09:41:47 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.195.17]) by smtp.corp.redhat.com (Postfix) with ESMTP id BF402492BC9; Mon, 15 Apr 2024 09:41:46 +0000 (UTC) From: Hans de Goede To: Sakari Ailus , Rui Miguel Silva Cc: Hans de Goede , Mauro Carvalho Chehab , Kate Hsuan , Kieran Bingham , linux-media@vger.kernel.org Subject: [PATCH resend 1/4] media: hi556: Return -EPROBE_DEFER if no endpoint is found Date: Mon, 15 Apr 2024 11:41:30 +0200 Message-ID: <20240415094133.210580-2-hdegoede@redhat.com> In-Reply-To: <20240415094133.210580-1-hdegoede@redhat.com> References: <20240415094133.210580-1-hdegoede@redhat.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.9 With ipu bridge, endpoints may only be created when ipu bridge has initialised. This may happen after the sensor driver has first probed. Signed-off-by: Hans de Goede --- drivers/media/i2c/hi556.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/media/i2c/hi556.c b/drivers/media/i2c/hi556.c index 38c77d515786..96bae9914d52 100644 --- a/drivers/media/i2c/hi556.c +++ b/drivers/media/i2c/hi556.c @@ -1206,8 +1206,13 @@ static int hi556_check_hwcfg(struct device *dev) int ret = 0; unsigned int i, j; - if (!fwnode) - return -ENXIO; + /* + * Sometimes the fwnode graph is initialized by the bridge driver, + * wait for this. + */ + ep = fwnode_graph_get_next_endpoint(fwnode, NULL); + if (!ep) + return -EPROBE_DEFER; ret = fwnode_property_read_u32(fwnode, "clock-frequency", &mclk); if (ret) { @@ -1220,10 +1225,6 @@ static int hi556_check_hwcfg(struct device *dev) return -EINVAL; } - ep = fwnode_graph_get_next_endpoint(fwnode, NULL); - if (!ep) - return -ENXIO; - ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); fwnode_handle_put(ep); if (ret)