From patchwork Thu Apr 18 09:08:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 10906869 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 06A35161F for ; Thu, 18 Apr 2019 09:08:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E2D8C28857 for ; Thu, 18 Apr 2019 09:08:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D6ADE289DA; Thu, 18 Apr 2019 09:08:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8276A28857 for ; Thu, 18 Apr 2019 09:08:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388352AbfDRJIm (ORCPT ); Thu, 18 Apr 2019 05:08:42 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:36159 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S2388394AbfDRJIQ (ORCPT ); Thu, 18 Apr 2019 05:08:16 -0400 X-UUID: 595c95a974654552a558d74eab67a375-20190418 X-UUID: 595c95a974654552a558d74eab67a375-20190418 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1589109885; Thu, 18 Apr 2019 17:08:05 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 18 Apr 2019 17:08:04 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 18 Apr 2019 17:08:04 +0800 From: To: , CC: , , , , , Sean Wang Subject: [PATCH v1 2/4] Bluetooth: btmtksdio: Add a bit definition for CHLPCR Date: Thu, 18 Apr 2019 17:08:00 +0800 Message-ID: <59a2a29ece89c13ffc2c7cd32432c1731906f447.1555577565.git.sean.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sean Wang Add a register bit definition about CHLPCR bit 8 because the bit is quite different in the meaning between reading and writing that bit. The patch adds a definition particularly for the bit read to avoid the confusion about using write definition to read the bit. Signed-off-by: Sean Wang --- drivers/bluetooth/btmtksdio.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index 681e3e34977e..9c123a9de673 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -56,7 +56,8 @@ static const struct sdio_device_id btmtksdio_table[] = { #define MTK_REG_CHLPCR 0x4 /* W1S */ #define C_INT_EN_SET BIT(0) #define C_INT_EN_CLR BIT(1) -#define C_FW_OWN_REQ_SET BIT(8) +#define C_FW_OWN_REQ_SET BIT(8) /* For write */ +#define C_COM_DRV_OWN BIT(8) /* For read */ #define C_FW_OWN_REQ_CLR BIT(9) #define MTK_REG_CSDIOCSR 0x8 @@ -526,7 +527,7 @@ static int btmtksdio_open(struct hci_dev *hdev) goto err_disable_func; err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status, - status & C_FW_OWN_REQ_SET, 2000, 1000000); + status & C_COM_DRV_OWN, 2000, 1000000); if (err < 0) { bt_dev_err(bdev->hdev, "Cannot get ownership from device"); goto err_disable_func; @@ -606,7 +607,7 @@ static int btmtksdio_close(struct hci_dev *hdev) sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, NULL); err = readx_poll_timeout(btmtksdio_drv_own_query, bdev, status, - !(status & C_FW_OWN_REQ_SET), 2000, 1000000); + !(status & C_COM_DRV_OWN), 2000, 1000000); if (err < 0) bt_dev_err(bdev->hdev, "Cannot return ownership to device");