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 87BDA37A48D; Sun, 5 Jul 2026 11:39:22 +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=1783251562; cv=none; b=WDVwXdetCZeGITNfkpdJh8ZmWhLWzAZWKArjba5Ie9kCB643CR3qqXSFIOgus1jISYe+ohefZFJxdtG9aOpXkJTO4I1ntPHLe3gr+zBrApdGY5kuUC74U3r5bKgeAXxv4EDU5+hHR4TM8LG0XyoO0ecBqe25xetuAEkKpE2i66s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783251562; c=relaxed/simple; bh=cjQ9pDdRzexmdnEFVPcOS2uzmihE5Dkf9G7PROHYhfk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Rx5vjSvsDvKReDI1bjq8e+KpwJNA8blCKjygrXrZ4f/XyYsWCHK9vL433u76m3lTk3ITdwz2VZ50BjBn6G64oal2stZfIIvbICBLOT7aRUpe/T+WBdlhzhw3Aonvbm3nC05zMY/waQW355qyULaekuzk6FdvSHogWDoXbgW6Ztc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Iq5GWOBg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Iq5GWOBg" Received: by smtp.kernel.org (Postfix) with ESMTPS id 21E6AC2BCF6; Sun, 5 Jul 2026 11:39:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1783251562; bh=cjQ9pDdRzexmdnEFVPcOS2uzmihE5Dkf9G7PROHYhfk=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=Iq5GWOBg3gtt23z7I87LffkatO/VxBHgjN2WWDSteiMnx1EQAXzgeZSRgWKCFRnUe EP7KLN7P7RvSKVTnSGFy7QBqX4L/C8KF0Wu/gYrzOdVbLS/vlOJEjoOsrRN8X57BmK fm31WqE9ZA/39tT2SDNQYx+/rLGs106wLanHd7UyJPQOKylhI5k5cyQSH2KWEVq13F SoYbM+/bD7P2l82dorxFQtbAZvvg86MydDbd0G0MHxpva6brwnWb4EDoFUEFkP68d9 oWvTxabPVkGMdmYJunrKo5UY+sJxWgo3iWZMHvtH2YZrTrSMkuL58PTztEz3MDBwc6 ItzG5+sfO00BQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 047C2C44500; Sun, 5 Jul 2026 11:39:22 +0000 (UTC) From: Rodrigo Alencar via B4 Relay Date: Sun, 05 Jul 2026 12:38:57 +0100 Subject: [PATCH v6 2/6] iio: dac: ad5686: introduce sync operation Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260705-ad5686-new-features-v6-2-269594c7aae5@analog.com> References: <20260705-ad5686-new-features-v6-0-269594c7aae5@analog.com> In-Reply-To: <20260705-ad5686-new-features-v6-0-269594c7aae5@analog.com> To: Michael Auchter , linux@analog.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Cc: Michael Hennerich , Jonathan Cameron , David Lechner , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , Kees Cook , "Gustavo A. R. Silva" , Rodrigo Alencar X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1783251560; l=1436; i=rodrigo.alencar@analog.com; s=default; h=from:subject:message-id; bh=/vsDuIkCy+O82t+vzKstlQP2RRX82emoYOHg5MWTkC0=; b=ElDeMK74i0FPe9/OCbAc+1eDwnstal9uxS4QRnnH2AsN9ph4VSwvyvl8BxHYfxG6rx97Kbfpk 3PoPfxS2xLACSb9GfHfJobpaqQqdYueGIzS6TdOJ5ISgDYZ8wZ1gd2P X-Developer-Key: i=rodrigo.alencar@analog.com; a=ed25519; pk=ULeHbgU/OYh/PG/4anHDfLgldFItQHAhOktYRVLMFRo= X-Endpoint-Received: by B4 Relay for rodrigo.alencar@analog.com/default with auth_id=561 X-Original-From: Rodrigo Alencar Reply-To: rodrigo.alencar@analog.com From: Rodrigo Alencar Add sync() to operation to ad5686_bus_ops, which can be used to flush multiple pending data transfers at once. This is going to be used when implementing triggered buffer support. Signed-off-by: Rodrigo Alencar --- drivers/iio/dac/ad5686.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad5686.h b/drivers/iio/dac/ad5686.h index 0d1bbf110926..56d37191ab37 100644 --- a/drivers/iio/dac/ad5686.h +++ b/drivers/iio/dac/ad5686.h @@ -67,10 +67,12 @@ struct ad5686_state; * struct ad5686_bus_ops - bus specific read/write operations * @read: read a register value at the given address * @write: write a command, address and value to the device + * @sync: ensure the completion of the write operation (optional) */ struct ad5686_bus_ops { int (*read)(struct ad5686_state *st, u8 addr); int (*write)(struct ad5686_state *st, u8 cmd, u8 addr, u16 val); + int (*sync)(struct ad5686_state *st); }; /** @@ -159,7 +161,13 @@ int ad5686_probe(struct device *dev, static inline int ad5686_write(struct ad5686_state *st, u8 cmd, u8 addr, u16 val) { - return st->ops->write(st, cmd, addr, val); + int ret; + + ret = st->ops->write(st, cmd, addr, val); + if (ret) + return ret; + + return st->ops->sync ? st->ops->sync(st) : 0; } static inline int ad5686_read(struct ad5686_state *st, u8 addr) -- 2.43.0