On Tue, 17 Sep 2013, Daniel Vetter <daniel@xxxxxxxx> wrote:
> On Tue, Sep 17, 2013 at 02:26:34PM +0300, Jani Nikula wrote:
>> This reduces dmesg noise when there's a glitch on the hpd line, or there
>> are more than one connectors on the same hpd line and only one of them
>> changes.
>>
>> While at it, switch to use the friendly status names instead of numbers.
>>
>> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
>> ---
>> drivers/gpu/drm/i915/i915_irq.c | 14 ++++++++++----
>> 1 file changed, 10 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
>> index 13d26cf..a42f30b 100644
>> --- a/drivers/gpu/drm/i915/i915_irq.c
>> +++ b/drivers/gpu/drm/i915/i915_irq.c
>> @@ -665,7 +665,8 @@ static int i915_get_vblank_timestamp(struct drm_device *dev, int pipe,
>> crtc);
>> }
>>
>> -static int intel_hpd_irq_event(struct drm_device *dev, struct drm_connector *connector)
>> +static bool intel_hpd_irq_event(struct drm_device *dev,
>> + struct drm_connector *connector)
>
> You change the return value to a bool here, but no users. Missing
> follow-up patch?
Nope, the only call site in i915_hotplug_work_func() already treats it
as a bool.
Jani.
> -Daniel
>
>> {
>> enum drm_connector_status old_status;
>>
>> @@ -673,11 +674,16 @@ static int intel_hpd_irq_event(struct drm_device *dev, struct drm_connector *con
>> old_status = connector->status;
>>
>> connector->status = connector->funcs->detect(connector, false);
>> - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
>> + if (old_status == connector->status)
>> + return false;
>> +
>> + DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",
>> connector->base.id,
>> drm_get_connector_name(connector),
>> - old_status, connector->status);
>> - return (old_status != connector->status);
>> + drm_get_connector_status_name(old_status),
>> + drm_get_connector_status_name(connector->status));
>> +
>> + return true;
>> }
>>
>> /*
>> --
>> 1.7.9.5
>>
>> _______________________________________________
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>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
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