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Fri, 13 Mar 2026 14:32:34 +0100 Received: from [::1] (helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.98.2) (envelope-from ) id 1w12XL-00000009ULB-0nO5; Fri, 13 Mar 2026 14:26:43 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Alexander Shiyan Date: Fri, 13 Mar 2026 14:25:05 +0100 Message-ID: <20260313132631.2257573-22-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260313132631.2257573-1-a.fatoum@pengutronix.de> References: <20260313132631.2257573-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260313_133240_564636_33E59484 X-CRM114-Status: GOOD ( 13.78 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 198.137.202.133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-3.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_LOW,RCVD_IN_VALIDITY_RPBL_BLOCKED, RCVD_IN_VALIDITY_SAFE_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=no autolearn_force=no version=3.4.2 Subject: [PATCH v2025.09.y 21/58] mtd: nand: mxc_nand: use clk_get_optional for clock handling X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) From: Alexander Shiyan On some platforms like i.MX51, the clock driver does not support GATE clocks, and the clocks are always on. The current driver uses clk_get which fails when the clock is not found, preventing the driver from probing. This patch changes clk_get to clk_get_optional, allowing the driver to continue probing even if the clock is not provided, assuming it is always enabled. (cherry picked from commit 092a3f95537b80c60bb9138cb4b3a7df1f751ed2) Signed-off-by: Alexander Shiyan Link: https://lore.barebox.org/20260114100923.1164051-1-eagle.alexander923@gmail.com Signed-off-by: Sascha Hauer --- drivers/mtd/nand/raw/mxc_nand.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/mxc_nand.c b/drivers/mtd/nand/raw/mxc_nand.c index de2ad2a028cb..e328eb0815c7 100644 --- a/drivers/mtd/nand/raw/mxc_nand.c +++ b/drivers/mtd/nand/raw/mxc_nand.c @@ -1809,7 +1809,8 @@ static int mxcnd_probe(struct device *dev) nand_set_controller_data(this, host); nand_set_flash_node(this, dev->of_node); - host->clk = clk_get(dev, NULL); + /* Clock support might not be implemented, so use the optional variant */ + host->clk = clk_get_optional(dev, NULL); if (IS_ERR(host->clk)) return PTR_ERR(host->clk); -- 2.47.3