[Intel-gfx] [PATCH] drm/i915/ehl: Don't forget to set TC long detect function

[Vivek Kasireddy]

On Tue, 15 Oct 2019 09:11:31 -0700
Matt Roper <matthew.d.roper at intel.com> wrote:

> Since EHL's MCC PCH reuses one of the TC pins we need to supply a TC
> long detect function when handling the interrupts.
> 
> Fixes: 53448aed7b80 ("drm/i915/ehl: Port C's hotplug interrupt is
> associated with TC1 bits") Reported-by: kbuild test robot
> <lkp at intel.com> Reported-by: Dan Carpenter <dan.carpenter at oracle.com>
> Cc: Vivek Kasireddy <vivek.kasireddy at intel.com>
> Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_irq.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_irq.c
> b/drivers/gpu/drm/i915/i915_irq.c index a7c968b01af3..af7426cd8de9
> 100644 --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -2251,6 +2251,7 @@ static void icp_irq_handler(struct
> drm_i915_private *dev_priv, u32 pch_iir) } else if
> (HAS_PCH_MCC(dev_priv)) { ddi_hotplug_trigger = pch_iir &
> SDE_DDI_MASK_ICP; tc_hotplug_trigger = pch_iir &
> SDE_TC_HOTPLUG_ICP(PORT_TC1);
> +		tc_port_hotplug_long_detect =
> icp_tc_port_hotplug_long_detect; pins = hpd_icp;

Reviewed-by: Vivek Kasireddy <vivek.kasireddy at intel.com>

>  	} else {
>  		ddi_hotplug_trigger = pch_iir & SDE_DDI_MASK_ICP;