video: fbdev: omapfb: Fix set but not used warnings in dsi
Fix several W=1 warnings. This removes unused code and avoids an assignment by moving the use inside the conditional block. The register read FLD_GET(r, 15, 8) could be dropped as it was done a few lines before too. v2: - Updated subject (Lee) Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Aditya Pakki <pakki001@umn.edu> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Lee Jones <lee.jones@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201128224114.1033617-23-sam@ravnborg.org
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