On 6/12/2018 2:30 PM, Jani Nikula wrote:
On Tue, 12 Jun 2018, vathsala nagaraju <vathsala.nagar...@intel.com> wrote:
From: Vathsala Nagaraju <vathsala.nagar...@intel.com>

Adds new psrwake options defined in the below table.
Platform        PSR wake options vbt version
KBL/CFL/WHL     All
SKL             All PV releases (Check for 203+ might help but cannot be 
foolproof)
BXT             Uses old interpretation.
CNL/ICL+        All
GLK             All

For SKL, we will continue to use older interpretation for the above reason.

Cc: Jani Nikula <jani.nik...@intel.com>
Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
Cc: Puthikorn Voravootivat <put...@chromium.org>
Cc: Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com>

Signed-off-by: Vathsala Nagaraju <vathsala.nagar...@intel.com>
---
  drivers/gpu/drm/i915/intel_bios.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_bios.c 
b/drivers/gpu/drm/i915/intel_bios.c
index 465dff4..010ff68 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -710,7 +710,8 @@ static int intel_bios_ssc_frequency(struct drm_i915_private 
*dev_priv,
         * New psr options 0=500us, 1=100us, 2=2500us, 3=0us
         * Old decimal value is wake up time in multiples of 100 us.
         */
-       if (bdb->version >= 209 && IS_GEN9_BC(dev_priv)) {
+       if ((INTEL_GEN(dev_priv) >= 10) ||
+           (IS_GEN9_BC(dev_priv) && !IS_SKYLAKE(dev_priv))) {
Please keep the version check.
Sure. For SKL , shall we use older interpretation for all bdb version as vbt team cannot confirm bdb version for SKL?

Please tell anyone who asks, and also those who don't, that *all* of the
VBT changes should be based on the *version*, and *none* of them should
be based on the *platform*.

BR,
Jani.

                switch (psr_table->tp1_wakeup_time) {
                case 0:
                        dev_priv->vbt.psr.tp1_wakeup_time_us = 500;

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