[Intel-gfx] [PATCH] drm/i915/psr: Adds psrwake options for all platforms

[Jani Nikula]

On Mon, 18 Jun 2018, Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com> wrote:
> On Mon, 2018-06-18 at 11:42 +0530, vathsala nagaraju wrote:
>> From: Vathsala Nagaraju <vathsala.nagaraju at intel.com>
>> 
>> Adds new psrwake options defined in the below table.
>> Platform	PSR wake options vbt version
>> KBL/CFL/WHL	All(205+)
>> BXT		Uses old interpretation.
>> CNL/ICL+	All(205+)
>> GLK		All(205+)
>> SKL		All PV releases (Check for 205+ might help but
>> cannot be foolproof)
>> 
>> We will continue with newer interpretation for SKL from 205.
> Let's hope this works for most machines out there.
>
> It'd be easier to distinguish newer updated patches if you use version
> numbers.
>
> Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>

Thanks for the patch and review, pushed to dinq with the checkpatch
warnings fixed while at it.

BR,
Jani.


>
>> 
>> v2: Jani
>>     Keep the bdb version check.
>> v3:
>>     Apply newer version for skl from 205+(DK).
>>     Add (version check && platform list) (Jani).
>>     Add bdb version for each platform in commit message(DK).
>> 
>> Cc: Jani Nikula <jani.nikula at intel.com>
>> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
>> Cc: Puthikorn Voravootivat <puthik at chromium.org>
>> Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
>> Cc: Ashutosh D Shukla <ashutosh.d.shukla at intel.com>
>> Cc: Maulik V Vaghela <maulik.v.vaghela at intel.com>
>> 
>> Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju at 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..9ef0464 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 (bdb->version >= 205 && (IS_GEN9_BC(dev_priv) ||
>> +	    IS_GEMINILAKE(dev_priv) || (INTEL_GEN(dev_priv) >= 10)))
>> {
>>  		switch (psr_table->tp1_wakeup_time) {
>>  		case 0:
>>  			dev_priv->vbt.psr.tp1_wakeup_time_us = 500;

-- 
Jani Nikula, Intel Open Source Graphics Center