git.stricted.de - GitHub/LineageOS/android_kernel_motorola

author	Jani Nikula <jani.nikula@intel.com>
	Thu, 6 Apr 2017 13:44:16 +0000 (16:44 +0300)
committer	Jani Nikula <jani.nikula@intel.com>
	Tue, 11 Apr 2017 13:54:32 +0000 (16:54 +0300)
commit	010b9b397b32e1fa2d2bd15ec521350a99ac4dc4
tree	50218bf2f279ffd6593b4cb4f17cdfa69d7ef9a7	tree \| snapshot (tar.gz zip)
parent	ec990e21d7668e08f6f4bd9b73e9d40d04b04198	commit \| diff

drm/i915/dp: use readb and writeb calls for single byte DPCD access

This is what we have the readb and writeb variants for. Do some minor
return value and variable cleanup while at it.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/fd8a8f110bcfdc73a8c9241e5f9d61f7dd7c9677.1491485983.git.jani.nikula@intel.com