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Commit bf8fa3d3 authored by Paulo Zanoni's avatar Paulo Zanoni Committed by Daniel Vetter
Browse files

drm/i915: extract lpt_enable_clkout_dp from lpt_init_pch_refclk 



The next step is to modify lpt_enable_clkout_dp to enable support for
"Sequence to enable CLKOUT_DP" and "Sequence to enable CLKOUT_DP
without spread".

Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: default avatarBen Widawsky <ben@bwidawsk.net>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent f31f2d55

drivers/gpu/drm/i915/intel_display.c

+22 −16
Original line number Diff line number Diff line
@@ -5264,24 +5264,10 @@ static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv) 
}



/* Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O. */

static void lpt_init_pch_refclk(struct drm_device *dev)

static void lpt_enable_clkout_dp(struct drm_device *dev)

{

	struct drm_i915_private *dev_priv = dev->dev_private;

	struct drm_mode_config *mode_config = &dev->mode_config;

	struct intel_encoder *encoder;

	bool has_vga = false;

	u32 tmp;



	list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {

		switch (encoder->type) {

		case INTEL_OUTPUT_ANALOG:

			has_vga = true;

			break;

		}

	}



	if (!has_vga)

		return;

	uint32_t tmp;



	mutex_lock(&dev_priv->dpio_lock);
@@ -5307,6 +5293,26 @@ static void lpt_init_pch_refclk(struct drm_device *dev) 
	mutex_unlock(&dev_priv->dpio_lock);

}



static void lpt_init_pch_refclk(struct drm_device *dev)

{

	struct drm_mode_config *mode_config = &dev->mode_config;

	struct intel_encoder *encoder;

	bool has_vga = false;



	list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {

		switch (encoder->type) {

		case INTEL_OUTPUT_ANALOG:

			has_vga = true;

			break;

		}

	}



	if (!has_vga)

		return;



	lpt_enable_clkout_dp(dev);

}



/*

 * Initialize reference clocks when the driver loads

 */