From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: WooYoung Jeon <chococookieman1@gmail.com>
Cc: Andy Shevchenko <andy@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] staging: fbtft: replace udelay with usleep_range
Date: Thu, 15 Jan 2026 10:47:12 +0200 [thread overview]
Message-ID: <aWipkPM0pwqx3red@smile.fi.intel.com> (raw)
In-Reply-To: <20260115084019.28574-1-chococookieman1@gmail.com>
On Thu, Jan 15, 2026 at 05:40:19PM +0900, WooYoung Jeon wrote:
> In the fb_ra8875 driver, udelay(100) is used for delay which
> causes busy-waiting. Replacing it with usleep_range(100, 120)
> allows the CPU to sleep during the delay, improving system
> resource efficiency.
>
> This change was suggested by checkpatch.pl.
Without HW test it's no go. See the previous attempts to "fix" the same place
over and over. (https://lore.kernel.org/ is at your service to dive into mail
archives)
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2026-01-15 8:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-15 8:40 [PATCH] staging: fbtft: replace udelay with usleep_range WooYoung Jeon
2026-01-15 8:47 ` Andy Shevchenko [this message]
2026-01-15 8:59 ` Greg Kroah-Hartman
-- strict thread matches above, loose matches on Subject: below --
2022-07-09 10:06 Christos Kollintzas
2022-07-09 10:30 ` Greg KH
2022-07-10 13:00 ` Christos Kollintzas
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