"I think he's in a good spot," said Padres interim manager Pat Murphy.
In five appearances since joining the Padres from Triple-A El Paso on Sept. 2, the right-hander has allowed one run over 5 1/3 innings with three hits, five walks and eight strikeouts.
Edwards -- who showed a hard slider and a fastball that ran as high as 97 mph on Friday -- had eight walks in six innings with the Rangers earlier this season but he has worked with the coaching staff since his arrival on his command.
"I think early on, walks and things like that have hurt.