Re: [PATCH v2] drm/i915: use for_each_pipe loop to assign crtc_mask

["Kumar, Mahesh" <mahesh1.kumar@xxxxxxxxx>]

Hi,

I used u8 because internally num_pipes variable used by for_each_pipe 
macro is of u8 type.
If you think it's good to have int for consistency I can update the patch.

Regards,
-Mahesh

On 9/7/2018 6:34 PM, Jani Nikula wrote:
> On Fri, 07 Sep 2018, Mahesh Kumar <mahesh1.kumar@xxxxxxxxx> wrote:
> > This cleanup patch makes changes to use for_each_pipe loop
> > during bit-mask assignment of allowed crtc with encoder.
> >
> > changes:
> >   - use BIT(i) macro instead of (1 << i) (Chris)
> >
> > Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
> > Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> > Signed-off-by: Mahesh Kumar <mahesh1.kumar@xxxxxxxxx>
> > ---
> >   drivers/gpu/drm/i915/intel_ddi.c  | 4 +++-
> >   drivers/gpu/drm/i915/intel_dp.c   | 5 ++++-
> >   drivers/gpu/drm/i915/intel_hdmi.c | 5 ++++-
> >   3 files changed, 11 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> > index cd01a09c5e0f..88dfca245099 100644
> > --- a/drivers/gpu/drm/i915/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/intel_ddi.c
> > @@ -3751,6 +3751,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
> >   	struct intel_encoder *intel_encoder;
> >   	struct drm_encoder *encoder;
> >   	bool init_hdmi, init_dp, init_lspcon = false;
> > +	u8 i;
> Please use int instead of u8 throughout. u8 only makes sense when you
> actually need the specific size, or need to be concerned about the size.
>
> BR,
> Jani.
>
> >   
> >   
> >   	init_hdmi = (dev_priv->vbt.ddi_port_info[port].supports_dvi ||
> > @@ -3801,8 +3802,9 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
> >   	intel_encoder->type = INTEL_OUTPUT_DDI;
> >   	intel_encoder->power_domain = intel_port_to_power_domain(port);
> >   	intel_encoder->port = port;
> > -	intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
> >   	intel_encoder->cloneable = 0;
> > +	for_each_pipe(dev_priv, i)
> > +		intel_encoder->crtc_mask |= BIT(i);
> >   
> >   	if (INTEL_GEN(dev_priv) >= 11)
> >   		intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) &
> > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> > index 436c22de33b6..1f954debdc55 100644
> > --- a/drivers/gpu/drm/i915/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/intel_dp.c
> > @@ -6709,7 +6709,10 @@ bool intel_dp_init(struct drm_i915_private *dev_priv,
> >   		else
> >   			intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
> >   	} else {
> > -		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
> > +		u8 i;
> > +
> > +		for_each_pipe(dev_priv, i)
> > +			intel_encoder->crtc_mask |= BIT(i);
> >   	}
> >   	intel_encoder->cloneable = 0;
> >   	intel_encoder->port = port;
> > diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> > index a2dab0b6bde6..647e38de7980 100644
> > --- a/drivers/gpu/drm/i915/intel_hdmi.c
> > +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> > @@ -2468,7 +2468,10 @@ void intel_hdmi_init(struct drm_i915_private *dev_priv,
> >   		else
> >   			intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
> >   	} else {
> > -		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
> > +		u8 i;
> > +
> > +		for_each_pipe(dev_priv, i)
> > +			intel_encoder->crtc_mask |= BIT(i);
> >   	}
> >   	intel_encoder->cloneable = 1 << INTEL_OUTPUT_ANALOG;
> >   	/*

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