Re: [PATCH] staging: fbtft: fb_ra8875: replace udelay with usleep_range
Andy Shevchenko <[email protected]> Thu, 16 Jul 2026 21:37:24 +0300
| Newsgroups | org.kernel.vger.linux-fbdev,dev.linux.lists.linux-staging,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-kernel |
|---|---|
| Organization | Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo |
| Message-ID | <[email protected]> |
On Thu, Jul 16, 2026 at 01:08:33PM +0200, Selby Mashiki via B4 Relay wrote: > udelay() busy-waits for the specified duration, consuming CPU cycles > unnecessarily. usleep_range() is preferred for delays that can sleep, > as it allows the scheduler to run other tasks during the wait. > > Replace two instances of udelay(100) with usleep_range(100, 200) to > use the preferred sleeping delay function. NAK. Read mailing list archives why. -- With Best Regards, Andy Shevchenko