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 CECB01A3029; Tue, 21 Oct 2025 20:02:19 +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=1761076939; cv=none; b=WJiwgYyiWq0wvbx9xPmSbrCN69+GJMbQXYx4zXBsKwGG2XDCuIB0AnUtJfHkCjmV0T1eTdWl7iEiuKDkGnm4K4nZJVOH4V4Raz9XZbIUGbE3bLpz4mOCiivxe+loZwUezuhmFKz6s3y3+8UPrK3M0gCN7UdAxL0a/21TVHfeGic= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761076939; c=relaxed/simple; bh=0Cha19oi7uYxl/aLu1xqRzFIJGFCa5TVaS9M1HP6qVA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=t+5HU+kDyFt8C5LvQENHHGfqNKLMC3obBeSeSRINZH2+rVvHSMJZjUUQvhBqq+NHiUDbpjWNfoXlJ3YGoXDvdgpdCB0p8d+s3j8b/Ao/WFnOOKyhmivU4X/SvInofkbmFFSd7uJgABalS/7qjwXFtAmLSO2t6qF1yXU0ul71f0M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=KKkXfpb5; 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="KKkXfpb5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BECDC4CEF1; Tue, 21 Oct 2025 20:02:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1761076939; bh=0Cha19oi7uYxl/aLu1xqRzFIJGFCa5TVaS9M1HP6qVA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KKkXfpb5RfefveFBgBqYcjNqQjthGLDNO7AMTruMmNrp8XBH7F40gEsJk2pNKOAD9 xVAV48k9+AhrCCizJAr7/freSua5GNN8Hfa3ZwVeYk19W9RtZ/5egqoTx2bzJReblC 7PIyEsEwtDTECm5ir0svXMgjK16kLDTTSJGq/t/Q= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sean Nyekjaer , Marc Kleine-Budde , Sasha Levin Subject: [PATCH 6.12 048/136] can: m_can: add deinit callback Date: Tue, 21 Oct 2025 21:50:36 +0200 Message-ID: <20251021195037.140009925@linuxfoundation.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251021195035.953989698@linuxfoundation.org> References: <20251021195035.953989698@linuxfoundation.org> User-Agent: quilt/0.69 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 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sean Nyekjaer [ Upstream commit baa8aaf79768b72eb7a181c476ca0291613f59e6 ] This is added in preparation for calling standby mode in the tcan4x5x driver or other users of m_can. For the tcan4x5x; If Vsup 12V, standby mode will save 7-8mA, when the interface is down. Signed-off-by: Sean Nyekjaer Link: https://patch.msgid.link/20241122-tcan-standby-v3-1-90bafaf5eccd@geanix.com Signed-off-by: Marc Kleine-Budde Stable-dep-of: a9e30a22d6f2 ("can: m_can: fix CAN state in system PM") Signed-off-by: Sasha Levin --- drivers/net/can/m_can/m_can.c | 7 +++++++ drivers/net/can/m_can/m_can.h | 1 + 2 files changed, 8 insertions(+) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index a7e326faca8ca..249263fca748d 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -1796,6 +1796,13 @@ static void m_can_stop(struct net_device *dev) /* set the state as STOPPED */ cdev->can.state = CAN_STATE_STOPPED; + + if (cdev->ops->deinit) { + ret = cdev->ops->deinit(cdev); + if (ret) + netdev_err(dev, "failed to deinitialize: %pe\n", + ERR_PTR(ret)); + } } static int m_can_close(struct net_device *dev) diff --git a/drivers/net/can/m_can/m_can.h b/drivers/net/can/m_can/m_can.h index ef39e8e527ab6..bd4746c63af3f 100644 --- a/drivers/net/can/m_can/m_can.h +++ b/drivers/net/can/m_can/m_can.h @@ -68,6 +68,7 @@ struct m_can_ops { int (*write_fifo)(struct m_can_classdev *cdev, int addr_offset, const void *val, size_t val_count); int (*init)(struct m_can_classdev *cdev); + int (*deinit)(struct m_can_classdev *cdev); }; struct m_can_tx_op { -- 2.51.0