[Intel-gfx] [PATCH 08/58] drm/i915/crt: convert to encoder disable/enable
Jesse Barnes
jbarnes at virtuousgeek.org
Tue Sep 4 21:50:52 CEST 2012
On Sun, 19 Aug 2012 21:12:25 +0200
Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
> CRT is the first output which can be cloned, hence we cannot (yet)
> move the dpms handling over to disable/enable. This requires some more
> smarts in intel_crtc_dpms first to set the display pipe status
> depening upon encoder->connectors_active of all connected encoders.
>
> Because that will happen in a separate step, don't touch the dpms
> functions, yet.
>
> v2: Be careful about clearing the _DISABLE flags for intermediate dpms
> modes - otherwise we might clobber the crt state when another (cloned)
> connector gets enabled.
>
> Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> ---
> drivers/gpu/drm/i915/intel_crt.c | 36 ++++++++++++++++++++++++++++++++----
> 1 file changed, 32 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
> index 1d05b2d..543ea40 100644
> --- a/drivers/gpu/drm/i915/intel_crt.c
> +++ b/drivers/gpu/drm/i915/intel_crt.c
> @@ -61,6 +61,29 @@ static struct intel_crt *intel_encoder_to_crt(struct intel_encoder *encoder)
> return container_of(encoder, struct intel_crt, base);
> }
>
> +static void intel_disable_crt(struct intel_encoder *encoder)
> +{
> + struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
> + struct intel_crt *crt = intel_encoder_to_crt(encoder);
> + u32 temp;
> +
> + temp = I915_READ(crt->adpa_reg);
> + temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);
> + temp &= ~ADPA_DAC_ENABLE;
> + I915_WRITE(crt->adpa_reg, temp);
> +}
> +
> +static void intel_enable_crt(struct intel_encoder *encoder)
> +{
> + struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
> + struct intel_crt *crt = intel_encoder_to_crt(encoder);
> + u32 temp;
> +
> + temp = I915_READ(crt->adpa_reg);
> + temp |= ADPA_DAC_ENABLE;
> + I915_WRITE(crt->adpa_reg, temp);
> +}
> +
> static void pch_crt_dpms(struct drm_encoder *encoder, int mode)
> {
> struct drm_device *dev = encoder->dev;
> @@ -575,18 +598,20 @@ static void intel_crt_reset(struct drm_connector *connector)
>
> static const struct drm_encoder_helper_funcs pch_encoder_funcs = {
> .mode_fixup = intel_crt_mode_fixup,
> - .prepare = intel_encoder_prepare,
> - .commit = intel_encoder_commit,
> + .prepare = intel_encoder_noop,
> + .commit = intel_encoder_noop,
> .mode_set = intel_crt_mode_set,
> .dpms = pch_crt_dpms,
> + .disable = intel_encoder_disable,
> };
>
> static const struct drm_encoder_helper_funcs gmch_encoder_funcs = {
> .mode_fixup = intel_crt_mode_fixup,
> - .prepare = intel_encoder_prepare,
> - .commit = intel_encoder_commit,
> + .prepare = intel_encoder_noop,
> + .commit = intel_encoder_noop,
> .mode_set = intel_crt_mode_set,
> .dpms = gmch_crt_dpms,
> + .disable = intel_encoder_disable,
> };
>
> static const struct drm_connector_funcs intel_crt_connector_funcs = {
> @@ -682,6 +707,9 @@ void intel_crt_init(struct drm_device *dev)
> else
> crt->adpa_reg = ADPA;
>
> + crt->base.disable = intel_disable_crt;
> + crt->base.enable = intel_enable_crt;
> +
> drm_encoder_helper_add(&crt->base.base, encoder_helper_funcs);
> drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs);
>
Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>
--
Jesse Barnes, Intel Open Source Technology Center
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