kernel/lib/cordic.c, branch linux-rolling-stable

lib: Move mathematic helpers to separate folder

2019-05-15T02:52:49Z

For better maintenance and expansion move the mathematic helpers to the separate folder. No functional change intended. Note, the int_sqrt() is not used as a part of lib, so, moved to regular obj. Link: http://lkml.kernel.org/r/20190323172531.80025-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko Signed-off-by: Mauro Carvalho Chehab Cc: Randy Dunlap Cc: Thierry Reding Cc: Lee Jones Cc: Daniel Thompson Cc: Ray Jui [mchehab+samsung@kernel.org: fix broken doc references for div64.c and gcd.c] Link: http://lkml.kernel.org/r/734f49bae5d4052b3c25691dfefad59bea2e5843.1555580999.git.mchehab+samsung@kernel.org Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

lib: cordic: Move cordic macros and defines to header file

2018-11-29T15:30:48Z

Now that these macros are in header file, we can eventually clean up the duplicate macros present in the drivers that utilize the same cordic algorithm implementation. Also add CORDIC_ prefix to nonprefixed macros. Reviewed-by: Arend van Spriel Signed-off-by: Priit Laes Acked-by: Larry Finger Signed-off-by: Kalle Valo

Docs: wording: functions -> algorithm

2011-10-29T19:20:22Z

The code seems to provide a single function that implements the CORDIC algorithm. Signed-off-by: Michael Witten Signed-off-by: Jiri Kosina

Docs: Pedantry: [Cc]ordic -> CORDIC

2011-10-29T19:20:21Z

According to: http://en.wikipedia.org/wiki/CORDIC it stands for: *CO*ordinate *R*otation *DI*gital *C*omputer Signed-off-by: Michael Witten Signed-off-by: Jiri Kosina

lib: cordic: add library module providing cordic angle calculation

2011-06-03T19:01:07Z

The brcm80211 driver in the staging tree has a cordic function to determine cosine and sine for a given angle. Feedback received from John Linville suggested that these kind of functions should be made available to others as a library function in the kernel tree. The b43 driver also has a cordic angle calculation implemented. Cc: linux-kernel@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: "John W. Linville" Cc: Greg Kroah-Hartman Cc: Dan Carpenter Cc: Randy Dunlap Cc: Larry Finger Reviewed-by: Roland Vossen Reviewed-by: Henry Ptasinski Reviewed-by: Franky (Zhenhui) Lin Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville