staging: fbtft: fb_sh1106: use own implementation of write_register

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The default implementation of write_register keeps DC low for the first
byte only. SH1106 requires DC to be low for all bytes of a multi-byte
command. To deal with this limitation we currently use a separate call
to write_reg for each single command byte what is not really efficient.

Therefore override the default implementation of write_register with an
own one which keeps DC low for all bytes.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Heiner Kallweit 2017-03-02 21:03:44 +01:00 • committed by Greg Kroah-Hartman

parent 18c6142168

commit 82472b8618

1 changed files with 33 additions and 32 deletions

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drivers/staging/fbtft/fb_sh1106.c

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