From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Hao Yao <hao.yao@intel.com>
Cc: Dan Scally <dan.scally@ideasonboard.com>,
djrscally@gmail.com, Hans de Goede <hdegoede@redhat.com>,
Sakari Ailus <sakari.ailus@intel.com>,
Bingbu Cao <bingbu.cao@intel.com>,
platform-driver-x86@vger.kernel.org, linux-media@vger.kernel.org
Subject: Re: [PATCH] platform/x86: int3472: Add strobe GPIO function
Date: Sat, 7 Oct 2023 11:22:35 +0300 [thread overview]
Message-ID: <ZSEVSy122qTWwvdy@smile.fi.intel.com> (raw)
In-Reply-To: <20231007021309.9332-1-hao.yao@intel.com>
On Sat, Oct 07, 2023 at 10:13:09AM +0800, Hao Yao wrote:
> Strobe pin is used for Lattice MIPI aggregator to control the LED
> so it can be handled together with privacy LED.
Thinking about this more, I am not now sure that this is a good approach.
The idea behind the STROBE LED is that is used for flash light and should
not be like on/off state, but rather the (quite) short pulse.
Combining these two together may even overheat the real strobe LED if used.
That said, is that platform using strobe GPIO for the privacy LED for real?!
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2023-10-07 8:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-07 2:13 [PATCH] platform/x86: int3472: Add strobe GPIO function Hao Yao
2023-10-07 8:22 ` Andy Shevchenko [this message]
2023-10-07 10:23 ` Hao Yao
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