From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 086182C0F60; Tue, 26 Aug 2025 14:15:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756217715; cv=none; b=UeQA1HZsdQcGoANXQ1Xl0vHXsBvMRwBJfgj9DWE2aXxcmDGXrQVcHhlVSC9bUROVSD2kB7mfeN7j86vcA8fCLeUtgZvA2X6KzqONanxegGGDLYx2c4cmGXKtmUjly1oOF/94gwSOmch3q8U6K6hzJilE6KBs1WDZ3fRvPUCzimQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756217715; c=relaxed/simple; bh=g7lUmQQm/+8q1LH1JvLI7Zg5hLGofxiFgdpAEOMocgY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=COdz4SN8H3zoV44fsBbVkopXjBpBKvbAbC0MYvlpeh3EFk6b9JnsgTgt5axnr/lQOeEtMJu/UOdpUB4y7uJ+/9/fKWgDhlX2bJTToc/htPKImL6qeroCwIInbfdFLi0coSA8CDEoavHiE3763hiT9Ywsu5G+1fCq2gMTzzG3+Vg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=V2l1VC4O; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="V2l1VC4O" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4AEC7C113D0; Tue, 26 Aug 2025 14:15:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756217714; bh=g7lUmQQm/+8q1LH1JvLI7Zg5hLGofxiFgdpAEOMocgY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=V2l1VC4O2vnVtS4wQQjJsLcyVDm/BGwxVingkrXhc8zppgLh4CmyNmuZbreUrZhz3 6SiiwKmPtJz/iR11JVsutp1abiOYYsCJjEVBYauHvAYMoe//B/tLKKwnrEd9GH9bGf M1GM5rr/BjKINgyvSPla9tKnEjSPJDTFzols1tK8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tomasz Michalec , Heikki Krogerus , Sasha Levin Subject: [PATCH 5.10 248/523] usb: typec: intel_pmc_mux: Defer probe if SCU IPC isnt present Date: Tue, 26 Aug 2025 13:07:38 +0200 Message-ID: <20250826110930.550974677@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110924.562212281@linuxfoundation.org> References: <20250826110924.562212281@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tomasz Michalec [ Upstream commit df9a825f330e76c72d1985bc9bdc4b8981e3d15f ] If pmc_usb_probe is called before SCU IPC is registered, pmc_usb_probe will fail. Return -EPROBE_DEFER when pmc_usb_probe doesn't get SCU IPC device, so the probe function can be called again after SCU IPC is initialized. Signed-off-by: Tomasz Michalec Reviewed-by: Heikki Krogerus Link: https://lore.kernel.org/r/20250610154058.1859812-1-tmichalec@google.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/typec/mux/intel_pmc_mux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c index 1276112edeff..9b4963450fe8 100644 --- a/drivers/usb/typec/mux/intel_pmc_mux.c +++ b/drivers/usb/typec/mux/intel_pmc_mux.c @@ -644,7 +644,7 @@ static int pmc_usb_probe(struct platform_device *pdev) pmc->ipc = devm_intel_scu_ipc_dev_get(&pdev->dev); if (!pmc->ipc) - return -ENODEV; + return -EPROBE_DEFER; pmc->dev = &pdev->dev; -- 2.39.5