From 151a49d0792203ab735020b5777bb636420a2a11 Mon Sep 17 00:00:00 2001
From: Tom O'Rourke <Tom.O'Rourke@intel.com>
Date: Thu, 13 Nov 2014 18:50:10 -0800
Subject: [PATCH] drm/i915: Extend pcode mailbox interface
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In sandybridge_pcode_read and sandybridge_pcode_write,
extend the mbox parameter from u8 to u32.

On Haswell and Sandybridge, bits 7:0 encode the mailbox
command and bits 28:8 are used for address control for
specific commands.

Based on suggestion from Ville Syrjälä.

Signed-off-by: Tom O'Rourke <Tom.O'Rourke@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Reading git-format-patch failed