[Intel-gfx] [PATCH 06/29] drm/i915/tc: Check for TC PHY explicitly in intel_tc_port_fia_max_lane_count()

[Kahola, Mika]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Imre
> Deak
> Sent: Thursday, March 23, 2023 4:20 PM
> To: intel-gfx at lists.freedesktop.org
> Subject: [Intel-gfx] [PATCH 06/29] drm/i915/tc: Check for TC PHY explicitly in
> intel_tc_port_fia_max_lane_count()
> 
> Check explicitly if the port passed to
> intel_tc_port_fia_max_lane_count() has a TC PHY, instead of relying on the
> default TC mode value set for non-TC PHY ports.
> 

Reviewed-by: Mika Kahola <mika.kahola at intel.com>

> Signed-off-by: Imre Deak <imre.deak at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_tc.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_tc.c
> b/drivers/gpu/drm/i915/display/intel_tc.c
> index 70771044a2fe8..48a59a675cd57 100644
> --- a/drivers/gpu/drm/i915/display/intel_tc.c
> +++ b/drivers/gpu/drm/i915/display/intel_tc.c
> @@ -188,10 +188,11 @@ int intel_tc_port_fia_max_lane_count(struct
> intel_digital_port *dig_port)  {
>  	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
>  	struct intel_tc_port *tc = to_tc_port(dig_port);
> +	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
>  	intel_wakeref_t wakeref;
>  	u32 lane_mask;
> 
> -	if (tc->mode != TC_PORT_DP_ALT)
> +	if (!intel_phy_is_tc(i915, phy) || tc->mode != TC_PORT_DP_ALT)
>  		return 4;
> 
>  	assert_tc_cold_blocked(tc);
> --
> 2.37.1