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

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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

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Jani Nikula 2017-04-06 16:44:16 +03:00

parent ec990e21d7

commit 010b9b397b

1 changed files with 17 additions and 20 deletions

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drivers/gpu/drm/i915/intel_dp.c

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