Some implementations do not use the reset signal, instead tying it to dvdd.
Make the reset gpio optional to permit this.
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220511113517.4172962-3-pgwipeout@gmail.com