From patchwork Fri Nov 19 22:25:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 12629641 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 3BE75C43217 for ; Fri, 19 Nov 2021 22:26:14 +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:References:In-Reply-To: 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: List-Owner; bh=JV8nAsGGwop1WGA2rrvT8PtMZH/OopZiIAygdcCK8TA=; b=cLesayOqIIb6Tk h5wam/8TsWTpkttIhiv1MaRnU8UqCLhfZDx0C7P+A1XEqGoHM3TJZwuBKArCmLQsWkd3reZUF/CbO mKGl0zFrCca1F2Kip0USdP9YtM6YHVTu0TyqUcfdfvM62G0k55yOhS31uDJte0d7uMPqE9bOBmrhf exZB9bQWvsPGVhT2mQYKmwWfyxRmnQpuf5wibHiQG8yCW3btci7xm/ik4bDRU5eaTVNXL8M4kca4Z O3/rSJfu1cUB1WHuUmfQ8ks24CDy3r616KFqIAW4M5+1HhM03A4svvOH4EM8e78swAsQbnY6jO/Mz QkxzL/QG0GUopIXNGBcg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1moCKb-00BhEl-Qj; Fri, 19 Nov 2021 22:26:05 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1moCKX-00BhDE-QK for linux-mediatek@lists.infradead.org; Fri, 19 Nov 2021 22:26:03 +0000 X-UUID: da47f4d6420b44efa398e2c9546dfec2-20211119 X-UUID: da47f4d6420b44efa398e2c9546dfec2-20211119 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1603995843; Fri, 19 Nov 2021 15:25:56 -0700 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 19 Nov 2021 14:25:54 -0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 20 Nov 2021 06:25:52 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 20 Nov 2021 06:25:51 +0800 From: To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , Mark-yw Chen Subject: [PATCH 2/4] Bluetooth: btmtksdio: handle runtime pm only when sdio_func is available Date: Sat, 20 Nov 2021 06:25:44 +0800 Message-ID: <07cd9db8ef295bfe3e6b42796ccb8c9fb59dd9ba.1637360076.git.objelf@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <4176102d8bbc36e5156e348df666a3e12c5a3d75.1637360076.git.objelf@gmail.com> References: <4176102d8bbc36e5156e348df666a3e12c5a3d75.1637360076.git.objelf@gmail.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211119_142601_884592_E54D7D1E X-CRM114-Status: GOOD ( 10.71 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Sean Wang Runtime pm ops is not aware the sdio_func status that is probably being disabled by btmtksdio_close. Thus, we are only able to access the sdio_func for the runtime pm operations only when the sdio_func is available. Fixes: 7f3c563c575e7 ("Bluetooth: btmtksdio: Add runtime PM support to SDIO based Bluetooth") Co-developed-by: Mark-yw Chen Signed-off-by: Mark-yw Chen Signed-off-by: Sean Wang --- drivers/bluetooth/btmtksdio.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index 4f3412ad8fca..4c46c62e4623 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -1037,6 +1037,9 @@ static int btmtksdio_runtime_suspend(struct device *dev) if (!bdev) return 0; + if (!test_bit(HCI_RUNNING, &bdev->hdev->flags)) + return 0; + sdio_claim_host(bdev->func); sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err); @@ -1064,6 +1067,9 @@ static int btmtksdio_runtime_resume(struct device *dev) if (!bdev) return 0; + if (!test_bit(HCI_RUNNING, &bdev->hdev->flags)) + return 0; + sdio_claim_host(bdev->func); sdio_writel(bdev->func, C_FW_OWN_REQ_CLR, MTK_REG_CHLPCR, &err);