On Thu, Jul 30, 2015 at 09:49:33AM +0300, Mika Kahola wrote:
> It is possible the we request to have a mode that has
> higher pixel clock than our HW can support. This patch
> checks if requested pixel clock is lower than the one
> supported by the HW. The requested mode is discarded
> if we cannot support the requested pixel clock.
>
> This patch applies to DSI.
>
> V2:
> - removed computation for max pixel clock
>
> Signed-off-by: Mika Kahola <mika.kahola@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_dsi.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
> index 18dd7d7..2882978 100644
> --- a/drivers/gpu/drm/i915/intel_dsi.c
> +++ b/drivers/gpu/drm/i915/intel_dsi.c
> @@ -654,6 +654,11 @@ intel_dsi_mode_valid(struct drm_connector *connector,
> {
> struct intel_connector *intel_connector = to_intel_connector(connector);
> struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
> + struct intel_encoder *intel_encoder = intel_connector->encoder;
> + struct intel_dsi *intel_dsi = enc_to_intel_dsi(&intel_encoder->base);
> + struct drm_device *dev = intel_dsi->base.base.dev;
> + struct drm_i915_private *dev_priv = to_i915(dev);
> + int max_pixclk = dev_priv->max_dotclk;
You only wanted i915, why all the extra steps?
int max_pixclk = to_i915(connector->dev)->max_dotclk;
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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