From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2CB1AC6FA82 for ; Tue, 13 Sep 2022 09:08:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=5vdnH4q+GSi5lP9VKYGIcg0R6qFWBAVjxNzqcZGsvZc=; b=wrkOyojlaaafbt DTH5K7DYa6vfnO/rxINPwsxdyzaw8Ndjj9onR460TJ+hpKMG7ixAHnedhjXwWVhAy1fnBgY8airA/ q8R1oYTxT+wpdfStUgBPTX7EtSqygmCYmBp5jfopyCq/dAHy0CnPTSBEFcTmpFKsgfDwzwpPqZlKo /GGrHVYCgTKA9DZnG41x4aKAl/7z5YW7IqifwSSslJWwDbsGgE5ea7ax3glNlJAjhG0e3pSYqlqIv /Bbr3aqWkgASXGIu5tYNiILhYiznFB9F3adG6G+ZJP7qKE+qhxzc3WIqAjVuXfZ9pWYwjF0DP+mV0 6GO8hu0zxFkwUE3k5m0g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oY1t8-004tww-GJ; Tue, 13 Sep 2022 09:07:26 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oY1t5-004tn8-0k for linux-arm-kernel@lists.infradead.org; Tue, 13 Sep 2022 09:07:24 +0000 Received: from benjamin-XPS-13-9310.. (unknown [89.101.193.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by madras.collabora.co.uk (Postfix) with ESMTPSA id 0E94F6602006; Tue, 13 Sep 2022 10:07:17 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1663060037; bh=4FYzYAq78L/H37k97U6Zxjw0N7leWulRRE9rHyIP+b0=; h=From:To:Cc:Subject:Date:From; b=g6ExAZPeFs9W5nvE3hrCzpUx1HHIy/t6o+Mp/Q7InLnxuQMPVNqFYaQoa/mVuP2CO J7zrBoPvNwO1owzSNOMhRcuDns6vf/Ao7Ipqqo8zDfh/O30dqmlrbLA/O7DNXvzlIG iWFULEMLF1kDf6sEqq2QG9E/W3dIfQWqbkNlL6zo2BuRAKUSXChDZ4lGyJU+0838Ad NdJ0FFhl6iOfu4HZFvcP3wtnbrHySA0YoLSk/dxR3BZFL1yjDveMzC25zJRaqteoBg Bg2sSYM18gS1nO2CHtpmPQrE5m2bB5n2nK/TqnsKt7/GA7Vyv3+dmJ8jOdAPWNqb/T Z1gCg+qHVwoRA== From: Benjamin Gaignard To: shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH] soc: imx: imx8m-blk-ctrl: Defer probe if 'bus' genpd is not yet ready Date: Tue, 13 Sep 2022 11:06:55 +0200 Message-Id: <20220913090655.39778-1-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220913_020723_296734_8F7CAACA X-CRM114-Status: GOOD ( 12.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Depending of the boot sequence 'bus' genpd could be probed after imx8m-blk-ctrl which led driver probe to fail. Change the returned error to allow to defer the probe in this case. Signed-off-by: Benjamin Gaignard --- drivers/soc/imx/imx8m-blk-ctrl.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/soc/imx/imx8m-blk-ctrl.c b/drivers/soc/imx/imx8m-blk-ctrl.c index dff7529268e4..99f5226a465b 100644 --- a/drivers/soc/imx/imx8m-blk-ctrl.c +++ b/drivers/soc/imx/imx8m-blk-ctrl.c @@ -215,8 +215,7 @@ static int imx8m_blk_ctrl_probe(struct platform_device *pdev) bc->bus_power_dev = genpd_dev_pm_attach_by_name(dev, "bus"); if (IS_ERR(bc->bus_power_dev)) - return dev_err_probe(dev, PTR_ERR(bc->bus_power_dev), - "failed to attach power domain \"bus\"\n"); + return -EPROBE_DEFER; for (i = 0; i < bc_data->num_domains; i++) { const struct imx8m_blk_ctrl_domain_data *data = &bc_data->domains[i]; -- 2.32.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel