drm/i915: Move PCH_NOP to -1

So we can later use PCH >= comparisons. The ultimate goal
is to make it easier for us to introduce a new platform
with south display engine on PCH just by reusing the previous
one.

Suggested-by: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190308214300.25057-2-rodrigo.vivi@intel.com

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index dc63303..9ca048d 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -524,6 +524,7 @@ struct i915_psr {
 };
 
 enum intel_pch {
+       PCH_NOP = -1,   /* PCH without south display */
        PCH_NONE = 0,   /* No PCH present */
        PCH_IBX,        /* Ibexpeak PCH */
        PCH_CPT,        /* Cougarpoint/Pantherpoint PCH */
@@ -532,7 +533,6 @@ enum intel_pch {
        PCH_KBP,        /* Kaby Lake PCH */
        PCH_CNP,        /* Cannon Lake PCH */
        PCH_ICP,        /* Ice Lake PCH */
-       PCH_NOP,        /* PCH without south display */
 };
 
 enum intel_sbi_destination {