linux-bluetooth.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: <sean.wang@mediatek.com>
To: <marcel@holtmann.org>, <johan.hedberg@gmail.com>
Cc: <Mark-YW.Chen@mediatek.com>, <sean.wang@mediatek.com>,
	<Soul.Huang@mediatek.com>, <YN.Chen@mediatek.com>,
	<Leon.Yen@mediatek.com>, <Eric-SY.Chang@mediatek.com>,
	<Deren.Wu@mediatek.com>, <km.lin@mediatek.com>,
	<robin.chiu@mediatek.com>, <Eddie.Chen@mediatek.com>,
	<ch.yeh@mediatek.com>, <posh.sun@mediatek.com>,
	<ted.huang@mediatek.com>, <Eric.Liang@mediatek.com>,
	<Stella.Chang@mediatek.com>, <Tom.Chou@mediatek.com>,
	<steve.lee@mediatek.com>, <jsiuda@google.com>,
	<frankgor@google.com>, <jemele@google.com>,
	<abhishekpandit@google.com>, <michaelfsun@google.com>,
	<mcchou@chromium.org>, <shawnku@google.com>,
	<linux-bluetooth@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Mark-yw Chen <mark-yw.chen@mediatek.com>
Subject: [PATCH v2 04/10] Bluetooth: btmtksdio: explicitly set WHISR as write-1-clear
Date: Tue, 19 Oct 2021 05:30:15 +0800	[thread overview]
Message-ID: <2c1c5888c5c42f969a116563d03599efd2b6792d.1634592181.git.objelf@gmail.com> (raw)
In-Reply-To: <cover.1634592181.git.objelf@gmail.com>

From: Sean Wang <sean.wang@mediatek.com>

That is a preliminary patch to introduce mt7921s support.

Explicitly set WHISR as write-1-clear method to all devices that is
the expected behavior the driver rely on.

Co-developed-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/bluetooth/btmtksdio.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 77d1c4ac582d..57126a95e292 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -487,8 +487,8 @@ static void btmtksdio_interrupt(struct sdio_func *func)
 static int btmtksdio_open(struct hci_dev *hdev)
 {
 	struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
+	u32 status, val;
 	int err;
-	u32 status;
 
 	sdio_claim_host(bdev->func);
 
@@ -533,8 +533,13 @@ static int btmtksdio_open(struct hci_dev *hdev)
 	if (err < 0)
 		goto err_release_irq;
 
-	/* Setup write-1-clear for CHISR register */
-	sdio_writel(bdev->func, C_INT_CLR_CTRL, MTK_REG_CHCR, &err);
+	/* Explitly set write-1-clear method */
+	val = sdio_readl(bdev->func, MTK_REG_CHCR, &err);
+	if (err < 0)
+		goto err_release_irq;
+
+	val |= C_INT_CLR_CTRL;
+	sdio_writel(bdev->func, val, MTK_REG_CHCR, &err);
 	if (err < 0)
 		goto err_release_irq;
 
-- 
2.25.1


  parent reply	other threads:[~2021-10-18 21:37 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-18 21:30 [PATCH v2 00/10] Add MT7921 SDIO Bluetooth support sean.wang
2021-10-18 21:30 ` [PATCH v2 01/10] Bluetooth: mediatek: add BT_MTK module sean.wang
2021-10-18 21:30 ` [PATCH v2 02/10] Bluetooth: btmtksido: rely on " sean.wang
2021-10-18 21:30 ` [PATCH v2 03/10] Bluetooth: btmtksdio: add .set_bdaddr support sean.wang
2021-10-18 21:30 ` sean.wang [this message]
2021-10-18 21:30 ` [PATCH v2 05/10] Bluetooth: btmtksdio: move interrupt service to work sean.wang
2021-10-18 21:30 ` [PATCH v2 06/10] Bluetooth: btmtksdio: update register CSDIOCSR operation sean.wang
2021-10-18 21:30 ` [PATCH v2 07/10] Bluetooth: btmtksdio: use register CRPLR to read packet length sean.wang
2021-10-18 21:30 ` [PATCH v2 08/10] Bluetooth: btmtksdio: transmit packet according to status TX_EMPTY sean.wang
2021-10-18 21:30 ` [PATCH v2 09/10] mmc: add MT7921 SDIO identifiers for MediaTek Bluetooth devices sean.wang
2021-10-18 21:30 ` [PATCH v2 10/10] Bluetooth: btmtksdio: add MT7921s Bluetooth support sean.wang
2021-10-25 13:37 ` [PATCH v2 00/10] Add MT7921 SDIO " Marcel Holtmann

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=2c1c5888c5c42f969a116563d03599efd2b6792d.1634592181.git.objelf@gmail.com \
    --to=sean.wang@mediatek.com \
    --cc=Deren.Wu@mediatek.com \
    --cc=Eddie.Chen@mediatek.com \
    --cc=Eric-SY.Chang@mediatek.com \
    --cc=Eric.Liang@mediatek.com \
    --cc=Leon.Yen@mediatek.com \
    --cc=Mark-YW.Chen@mediatek.com \
    --cc=Soul.Huang@mediatek.com \
    --cc=Stella.Chang@mediatek.com \
    --cc=Tom.Chou@mediatek.com \
    --cc=YN.Chen@mediatek.com \
    --cc=abhishekpandit@google.com \
    --cc=ch.yeh@mediatek.com \
    --cc=frankgor@google.com \
    --cc=jemele@google.com \
    --cc=johan.hedberg@gmail.com \
    --cc=jsiuda@google.com \
    --cc=km.lin@mediatek.com \
    --cc=linux-bluetooth@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=marcel@holtmann.org \
    --cc=mcchou@chromium.org \
    --cc=michaelfsun@google.com \
    --cc=posh.sun@mediatek.com \
    --cc=robin.chiu@mediatek.com \
    --cc=shawnku@google.com \
    --cc=steve.lee@mediatek.com \
    --cc=ted.huang@mediatek.com \
    --subject='Re: [PATCH v2 04/10] Bluetooth: btmtksdio: explicitly set WHISR as write-1-clear' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).