From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 11 Aug 2025 14:30:31 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1ulRfb-009KlY-1X for lore@lore.pengutronix.de; Mon, 11 Aug 2025 14:30:31 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ulRfH-0006M5-Bg for lore@pengutronix.de; Mon, 11 Aug 2025 14:30:31 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=vVdin0TA7j29jN8qYr6vIdoGZeR3CwHs7oyFYvISiUc=; b=0iT2Uo9tnvpbRONbCnBQ6vGPCM 8WUMgB6OpBvCt60dIU1J0waKe0ErpTzn82MRXsFHWWYu671EIO8gMXkSoTqC1YwI6lgT2hTG3uxsE kaB+aVGpPOK5plUoR8g19kIkst8R2YHjTmD3LhQCJYmx3/RtcUTrlIcvAd4ylnA8BAPCtdd2ZfkAG q6l0VViYK3YNHa/yO0Bxp6Cb3Q/c9h55s4ZtFO6O8flrwGLPquc5lCeLZqdJGenyB8yP51jZTVe6H IZYnfcTVb54C/l6bjMjktA/mjKrbMXfkWRiTNnHg76d90GOdOgLbCfj2Mr53FWfkCO+WCkkaTaHKx U+tLDZMw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1ulRe6-00000007eCe-1WhG; Mon, 11 Aug 2025 12:28:58 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ulRdn-00000007dhz-1Btz for barebox@bombadil.infradead.org; Mon, 11 Aug 2025 12:28:39 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=vVdin0TA7j29jN8qYr6vIdoGZeR3CwHs7oyFYvISiUc=; b=HUMOIYvDXiUACPE890Q8vgOVJC eoeJ/nhEPzcGnOXFGDjXB9Aj8d5VjTvuElRAhvix/P5Aa86csgUJkQhej105+krmny5LsOknqEzI1 caangVXow2JfGGWkf7IKNlKLNzgq0Gme3X+/0hqOYfuyC0aF8FVtk3r1wJ13C6ocMdvAzTrNYMZ8K wTo4LkxdT+/mWtPH5mhxKAjKVi6deBpvq+MFEgstN7eqx727l9UN892HDnNJYkTXzNMSN58RSCK8e z3/H3VYt1buD7m1Ak6sGLp+irHPUNyVKI31fCjNzKRhoTacMtfd3L2pktWoI9ZZCPzoO39PJ3KW6g 85l7D3mg==; Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by desiato.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ulRdj-0000000FPTj-0BOT for barebox@lists.infradead.org; Mon, 11 Aug 2025 12:28:38 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=geraet.fritz.box) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1ulRdg-0004WP-Gz; Mon, 11 Aug 2025 14:28:32 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Mon, 11 Aug 2025 14:28:05 +0200 Message-Id: <20250811122824.1667791-26-a.fatoum@barebox.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250811122824.1667791-1-a.fatoum@barebox.org> References: <20250811122824.1667791-1-a.fatoum@barebox.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250811_132835_315651_2B43EE37 X-CRM114-Status: GOOD ( 10.53 ) 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: 2607:7c80:54:3::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=-5.4 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 25/44] mtd: add devices to new mtd class 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) We maintain no global list of MTD masters, but it's a useful thing to have if only for informational purposes. Add a struct class for this use case. Signed-off-by: Ahmad Fatoum --- drivers/mtd/core.c | 4 ++++ include/linux/mtd/mtd.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/drivers/mtd/core.c b/drivers/mtd/core.c index 2ca16c614dee..6162ec450fc1 100644 --- a/drivers/mtd/core.c +++ b/drivers/mtd/core.c @@ -25,6 +25,8 @@ static LIST_HEAD(mtd_register_hooks); +DEFINE_DEV_CLASS(mtd_class, "mtd"); + /** * mtd_buf_all_ff - check if buffer contains only 0xff * @buf: buffer to check @@ -681,6 +683,8 @@ int add_mtd_device(struct mtd_info *mtd, const char *devname, int device_id) if (ret) return ret; + class_add_device(&mtd_class, &mtd->dev); + mtd->cdev.ops = &mtd_ops; mtd->cdev.size = mtd->size; if (device_id == DEVICE_ID_SINGLE) diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 8d99dff27fe7..f85c7e783243 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -339,6 +339,8 @@ static inline uint32_t mtd_div_by_wb(uint64_t sz, struct mtd_info *mtd) extern int add_mtd_device(struct mtd_info *mtd, const char *devname, int device_id); extern int del_mtd_device (struct mtd_info *mtd); +extern struct class mtd_class; + extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num); extern struct mtd_info *get_mtd_device_nm(const char *name); -- 2.39.5