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drm/i915/audio: split dp and hdmi audio config update 

The code for dp and hdmi are already different, and they're about to
diverge even more. Split them for clarity in future work. No functional
changes.

Cc: Libin Yang <libin.yang@linux.intel.com>
Reviewed-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/41b8e24fed92effafaef69675ddabfa2008b4d31.1476111629.git.jani.nikula@intel.com
hifive-unleashed-5.1
Jani Nikula 2016-10-10 18:04:03 +03:00
parent 8f1ec181b1
commit 12e87f23c6
1 changed files with 34 additions and 21 deletions
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55
drivers/gpu/drm/i915/intel_audio.c
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@ -148,18 +148,6 @@ static uint32_t audio_config_setup_n_reg(int n, uint32_t val)
return tmp;
}
/* check whether N/CTS/M need be set manually */
static bool audio_rate_need_prog(struct intel_crtc *crtc,
const struct drm_display_mode *mode)
{
if (((mode->clock == TMDS_297M) ||
(mode->clock == TMDS_296M)) &&
intel_crtc_has_type(crtc->config, INTEL_OUTPUT_HDMI))
return true;
else
return false;
}
static bool intel_eld_uptodate(struct drm_connector *connector,
i915_reg_t reg_eldv, uint32_t bits_eldv,
i915_reg_t reg_elda, uint32_t bits_elda,
@ -245,9 +233,26 @@ static void g4x_audio_codec_enable(struct drm_connector *connector,
I915_WRITE(G4X_AUD_CNTL_ST, tmp);
}
static void hsw_audio_config_update(struct intel_crtc *intel_crtc,
enum port port,
const struct drm_display_mode *adjusted_mode)
static void
hsw_dp_audio_config_update(struct intel_crtc *intel_crtc, enum port port,
const struct drm_display_mode *adjusted_mode)
{
struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
enum pipe pipe = intel_crtc->pipe;
u32 tmp;
tmp = I915_READ(HSW_AUD_CFG(pipe));
tmp &= ~AUD_CONFIG_N_VALUE_INDEX;
tmp &= ~AUD_CONFIG_PIXEL_CLOCK_HDMI_MASK;
tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
tmp |= AUD_CONFIG_N_VALUE_INDEX;
I915_WRITE(HSW_AUD_CFG(pipe), tmp);
}
static void
hsw_hdmi_audio_config_update(struct intel_crtc *intel_crtc, enum port port,
const struct drm_display_mode *adjusted_mode)
{
struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
struct i915_audio_component *acomp = dev_priv->audio_component;
@ -259,13 +264,11 @@ static void hsw_audio_config_update(struct intel_crtc *intel_crtc,
tmp = I915_READ(HSW_AUD_CFG(pipe));
tmp &= ~AUD_CONFIG_N_VALUE_INDEX;
tmp &= ~AUD_CONFIG_PIXEL_CLOCK_HDMI_MASK;
if (intel_crtc_has_dp_encoder(intel_crtc->config))
tmp |= AUD_CONFIG_N_VALUE_INDEX;
else
tmp |= audio_config_hdmi_pixel_clock(adjusted_mode);
tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
if (audio_rate_need_prog(intel_crtc, adjusted_mode)) {
tmp |= audio_config_hdmi_pixel_clock(adjusted_mode);
if (adjusted_mode->clock == TMDS_296M ||
adjusted_mode->clock == TMDS_297M) {
n = audio_config_get_n(adjusted_mode, rate);
if (n != 0)
tmp = audio_config_setup_n_reg(n, tmp);
@ -276,6 +279,16 @@ static void hsw_audio_config_update(struct intel_crtc *intel_crtc,
I915_WRITE(HSW_AUD_CFG(pipe), tmp);
}
static void
hsw_audio_config_update(struct intel_crtc *intel_crtc, enum port port,
const struct drm_display_mode *adjusted_mode)
{
if (intel_crtc_has_dp_encoder(intel_crtc->config))
hsw_dp_audio_config_update(intel_crtc, port, adjusted_mode);
else
hsw_hdmi_audio_config_update(intel_crtc, port, adjusted_mode);
}
static void hsw_audio_codec_disable(struct intel_encoder *encoder)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);