From patchwork Wed Jan 12 07:39:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 12710964 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5569EC433EF for ; Wed, 12 Jan 2022 07:39:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348472AbiALHjZ (ORCPT ); Wed, 12 Jan 2022 02:39:25 -0500 Received: from mailgw01.mediatek.com ([60.244.123.138]:33298 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1344426AbiALHjY (ORCPT ); Wed, 12 Jan 2022 02:39:24 -0500 X-UUID: b93436c9d1cf4de88a6d9ae0a0618db1-20220112 X-UUID: b93436c9d1cf4de88a6d9ae0a0618db1-20220112 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1273416240; Wed, 12 Jan 2022 15:39:22 +0800 Received: from mtkexhb01.mediatek.inc (172.21.101.102) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Wed, 12 Jan 2022 15:39:20 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkexhb01.mediatek.inc (172.21.101.102) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 12 Jan 2022 15:39:20 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 12 Jan 2022 15:39:19 +0800 From: To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , Mark Chen Subject: [PATCH 1/7] Bluetooth: mt7921s: fix firmware coredump retrieve Date: Wed, 12 Jan 2022 15:39:11 +0800 Message-ID: X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Mark Chen According to the MCU firmware behavior, as the driver is aware of the notification of the interrupt source FW_MAILBOX_INT that shows the MCU completed delivered a core dump piece to the host, the driver must acknowledge the MCU with the register PH2DSM0R bit PH2DSM0R_DRIVER_OWN to notify the MCU to handle the next core dump piece. Fixes: db57b625912a ("Bluetooth: btmtksdio: add support of processing firmware coredump and log") Co-developed-by: Sean Wang Signed-off-by: Sean Wang Signed-off-by: Mark Chen --- drivers/bluetooth/btmtksdio.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index 25fb9c79b1f4..784e65c3fddd 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -87,8 +87,12 @@ MODULE_DEVICE_TABLE(sdio, btmtksdio_table); #define RX_DONE_INT BIT(1) #define TX_EMPTY BIT(2) #define TX_FIFO_OVERFLOW BIT(8) +#define FW_MAILBOX_INT BIT(15) #define RX_PKT_LEN GENMASK(31, 16) +#define MTK_REG_PH2DSM0R 0xc4 +#define PH2DSM0R_DRIVER_OWN BIT(0) + #define MTK_REG_CTDR 0x18 #define MTK_REG_CRDR 0x1c @@ -481,6 +485,12 @@ static void btmtksdio_txrx_work(struct work_struct *work) */ sdio_writel(bdev->func, int_status, MTK_REG_CHISR, NULL); + if ((int_status & FW_MAILBOX_INT) && + bdev->data->chipid == 0x7921) { + sdio_writel(bdev->func, PH2DSM0R_DRIVER_OWN, + MTK_REG_PH2DSM0R, 0); + } + if (int_status & FW_OWN_BACK_INT) bt_dev_dbg(bdev->hdev, "Get fw own back");