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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: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2013-07-12 14:19:38 -03:00 committed by Daniel Vetter
parent f31f2d55eb
commit bf8fa3d383
1 changed files with 22 additions and 16 deletions
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38
drivers/gpu/drm/i915/intel_display.c
View File

@ -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
*/