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 A3D4C224B14; Tue, 26 Aug 2025 12:55:30 +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=1756212930; cv=none; b=HsyNIFViDNwxYrWAGqExdJVTdmx0cdudMo52hG1soEGzfdwlQU9y1lBDkwhXZSGn4rcJYrT5fwwd+2Rj8Xdx7u8HkM6Rd4msykf/yk5I98uG2oFMPTUg+GSi8gv9/F4BWJ++0d04jv1Ygj7D3qYnig7BZd7RbuFSGRYgapoPpDg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756212930; c=relaxed/simple; bh=BkYxWaO/JhwLpgkEWQr3hgKIJ3UfwsojtlUTsqucVsU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=TN8CMXhcMDbbY1eioaO3x8CZs0zCgZA7WaIB3stDVpzjGlsIefGcXHral7aU9CInnn4fNYemlmbbJVegXVsJ5YztF1b6th+e0mvLOflXGV9oU5YSloxjh7A8LLmkc4j5OskA1Sbpta0GEcu3fNf0QoLPRtowP5vJaoO6xcCMI90= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=PX0X4zHB; 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="PX0X4zHB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3236EC4CEF1; Tue, 26 Aug 2025 12:55:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756212930; bh=BkYxWaO/JhwLpgkEWQr3hgKIJ3UfwsojtlUTsqucVsU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PX0X4zHBQmBb6UGNQlLPNfW2DKBG64gD2RFk2IHQw/KOQCDH1kFKR7+52N4tG3HAR tOCp/gkufGtMXk+fy+XYIT8tmvwQVRHNjIHnWDggHP+adN7z4O15c0VegHcwNG1l1I PJ0BqkdCwoFmpwp7luB1X8bqfPpJm2FFAiRW1cuk= 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 6.6 126/587] usb: typec: intel_pmc_mux: Defer probe if SCU IPC isnt present Date: Tue, 26 Aug 2025 13:04:35 +0200 Message-ID: <20250826110956.159589995@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110952.942403671@linuxfoundation.org> References: <20250826110952.942403671@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 6.6-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 60ed1f809130..a174ff7a9abd 100644 --- a/drivers/usb/typec/mux/intel_pmc_mux.c +++ b/drivers/usb/typec/mux/intel_pmc_mux.c @@ -730,7 +730,7 @@ 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