| Message ID | 20241108-ub9xx-fixes-v2-11-c7db3b2ad89f@ideasonboard.com |
|---|---|
| State | New |
| Headers | show
Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (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 9FDD91E7C17; Fri, 8 Nov 2024 09:35:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731058536; cv=none; b=a57KZlDlUoqjKCfYVfPfyL3Gv9lFI8X38WF3h9O93rT4g//uK6ibLZuiafu7EBwuljhOS684yVe5DDXhs4k2AoIhpBkID8MG7KotijDzsSGMmNlAHhLkdMInmivk6C2l+bHzvfrF47lqbDmYJeh06kUL+RPQF4lCDXC7WPrf9PU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731058536; c=relaxed/simple; bh=5VLNvEv71o419ZM2snWjQCE3gPk5HEiEVCAtwv2Uo+I=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=S7zeLj/tBMc/kPaE0ywE/zIID7PrqsE4uMTrCIdLH4YHXcPngJKFJ1GbeC70KYG9VQCNRx/l//lzKfLPJHPKRYtckISxQy9okFKHWOsaoSebIJBA/ZuykEX9xoWDj6ePPIBk08EDD6VuZlWodr58QW4Oe3Lj60mg6zdCT5M9qS8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=OjqPLWfe; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="OjqPLWfe" Received: from [127.0.1.1] (91-157-155-49.elisa-laajakaista.fi [91.157.155.49]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 713643D5; Fri, 8 Nov 2024 10:35:12 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1731058512; bh=5VLNvEv71o419ZM2snWjQCE3gPk5HEiEVCAtwv2Uo+I=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OjqPLWfeg+2n97q8MZsaLhO6QedFzNNGoKP+QTaJHSjsSv4xtFVqqENtnA5dKO4R1 MyHYxSxyIpWbPW24XyAHw3IiX1tdu/h+gGp3nqhc/2r8HbfP2Od4Sr/ea34Cq8ZT1u wYjil/l78/mwXEwxBVPuZO9F1ZPU723pT1vDNjl8= From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Date: Fri, 08 Nov 2024 11:34:55 +0200 Subject: [PATCH v2 11/15] media: i2c: ds90ub960: Reduce sleep in ub960_rxport_wait_locks() Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: <linux-media.vger.kernel.org> List-Subscribe: <mailto:linux-media+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-media+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20241108-ub9xx-fixes-v2-11-c7db3b2ad89f@ideasonboard.com> References: <20241108-ub9xx-fixes-v2-0-c7db3b2ad89f@ideasonboard.com> In-Reply-To: <20241108-ub9xx-fixes-v2-0-c7db3b2ad89f@ideasonboard.com> To: Mauro Carvalho Chehab <mchehab@kernel.org>, Sakari Ailus <sakari.ailus@linux.intel.com>, Hans Verkuil <hverkuil-cisco@xs4all.nl>, Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Jai Luthra <jai.luthra@ideasonboard.com>, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1037; i=tomi.valkeinen@ideasonboard.com; h=from:subject:message-id; bh=5VLNvEv71o419ZM2snWjQCE3gPk5HEiEVCAtwv2Uo+I=; b=owEBbQKS/ZANAwAIAfo9qoy8lh71AcsmYgBnLdtR1CKuB3jU2gmQdf7/cZ/y4JYsXrxP9UVcL HbXhcR28syJAjMEAAEIAB0WIQTEOAw+ll79gQef86f6PaqMvJYe9QUCZy3bUQAKCRD6PaqMvJYe 9QCmD/9Vm7ld5rEngi4kdIQoCCxIgGI6MmYrnFZP2oEomZP7DXK6u6ytMfHKhH/DQFN+KHjJF76 kX1q57B7j6Pd4DlE+/ZNNLwy0z1KP+TI7TH3q6N69EE8QF73Vs8btcY+xIcA2UvZUE5V4nVoS+x /bj+liCjOV2HGMsMkoPvyDJzoAZrtCeG4HHtl8g6SlB1r4Rr1fQbd6SZeuzWbYV9ogJpTGrUVSv 0ILqYPeC7dNOp+/PqoVkUsWwN2O5JyK0ofWhyGwE8rARanxfm+s9QEKxrxPlTspGo+d+GYfDdGv 4lYv1ssYUV314g7Hu8EcwaJ/1dDwNPTZbvRT6pr3umYdRyVfRvCdsTvat3WmOsJ6/veYcpBfy0G Ms9wa8Bbzuc38AUVviV9gVlHfo56BvAi1dRe0xhtrO5MpGDcp0Hmz8efBFmn0muIBOgb+uLS+9k 6y22JbMSRJ4XIXzLvyp5wvc73EsQtcucxQSYeUrN8RHzR6SYtnS6Zpaj8hm9C9Q3NYDdeVgU1k5 OFLsO00DhFybMJJBxSAg3dgyMh6OEry9IdsSmG9zOUG/mIu/5EM5fD2YAaZA7HkHV1tephMhFWs +LdxeQZZHeSDhb4jsM50CJjWnmeud679xRuMK82yzsp1Rqy5xr6fgSG3JMZvxpjTQvJZ3+3xhQb psG7VpuWJioMD3A== X-Developer-Key: i=tomi.valkeinen@ideasonboard.com; a=openpgp; fpr=C4380C3E965EFD81079FF3A7FA3DAA8CBC961EF5 |
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media: i2c: ds90ub9xx: Misc fixes and improvements
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diff --git a/drivers/media/i2c/ds90ub960.c b/drivers/media/i2c/ds90ub960.c index a4a624816d8b..64b5297c5f22 100644 --- a/drivers/media/i2c/ds90ub960.c +++ b/drivers/media/i2c/ds90ub960.c @@ -1576,7 +1576,12 @@ static int ub960_rxport_wait_locks(struct ub960_data *priv, if (missing == 0) break; - msleep(50); + /* + * The sleep time of 10 ms was found by testing to give a lock + * with a few iterations. It can be decreased if on some setups + * the lock can be achieved much faster. + */ + fsleep(10 * USEC_PER_MSEC); } if (lock_mask)
We currently sleep for 50 ms at the end of each iteration in ub960_rxport_wait_locks(). This feels a bit excessive, especially as we always do at least two loops, so there's always at least one sleep, even if we already have a stable lock. Change the sleep to 10 ms. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> --- drivers/media/i2c/ds90ub960.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)