From patchwork Mon Jan 15 20:12:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 13520151 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (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 C5E2119473 for ; Mon, 15 Jan 2024 20:21:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rPTSG-0004kf-Uu; Mon, 15 Jan 2024 21:21:08 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rPTSF-0005gi-HJ; Mon, 15 Jan 2024 21:21:07 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rPTSF-000N7t-1R; Mon, 15 Jan 2024 21:21:07 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mark Brown , Geert Uytterhoeven Cc: linux-spi@vger.kernel.org, kernel@pengutronix.de, Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Martin Blumenstingl , Jernej Skrabec , Nicolas Ferre , =?utf-8?q?Pali_Roh=C3=A1r?= , linux-mtd@lists.infradead.org Subject: [PATCH 13/33] mtd: rawnand: fsl_elbc: Let .probe retry if local bus is missing Date: Mon, 15 Jan 2024 21:12:59 +0100 Message-ID: <978d5107646800a2dfa3299e32e2587907d53a87.1705348269.git.u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=926; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=s+JADGlY1hU/NStvmmbQ8XZ+UID1ILn7ThT9et4DuL4=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlpZHPCEJWc7vdLUmy8+BmgzzT8evOP0zLGbYWS ciV2KzQ93yJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZaWRzwAKCRCPgPtYfRL+ TiVdB/wMSwEC76EmTubxnIK4QkQ+SGwLSbNrGj1gqo0OR0dGoYZmlUtZ4lJgy6bm7ZuExr1OOVZ +nD45sPyuvg6SusiCWNVHmV2Bs/wGWYC+rJogFEKVV1MGghznBcd7jFin7nnYU0ZA6J8MaLmlNA mNILzMZe1SuVNxrbE9VYubQh81lpfU8KVZx/GypYqzbNGLpxZkCZK06v59OSEYcWtmMNtL/KJX1 ZNIvStyr8BUpuLU4UCGrhkA498s3DA+igjki46e0RvjwKnPVPKYB9Z5lCwrut4FVJPrz+aJdpCH gLPB+jWx0B7KKeaqdtcMUayWjw5xqjIZcjLQlqeAH6grisdI X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-spi@vger.kernel.org If during probe fsl_lbc_ctrl_dev is NULL that might just be because the fsl_lbc driver didn't bind yet. So return -EPROBE_DEFER in this case to make the driver core retry probing later. Signed-off-by: Uwe Kleine-König --- drivers/mtd/nand/raw/fsl_elbc_nand.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c index 1e3a80f06f33..df6a0d5c86bb 100644 --- a/drivers/mtd/nand/raw/fsl_elbc_nand.c +++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c @@ -869,7 +869,8 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev) struct mtd_info *mtd; if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs) - return -ENODEV; + return dev_err_probe(&pdev->dev, -EPROBE_DEFER, "lbc_ctrl_dev missing\n"); + lbc = fsl_lbc_ctrl_dev->regs; dev = fsl_lbc_ctrl_dev->dev;