From 12e87f23c6278eda2fec540f078e08f1ad63b4fe Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 10 Oct 2016 18:04:03 +0300 Subject: [PATCH] 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 Reviewed-by: Libin Yang Signed-off-by: Jani Nikula Link: http://patchwork.freedesktop.org/patch/msgid/41b8e24fed92effafaef69675ddabfa2008b4d31.1476111629.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_audio.c | 55 ++++++++++++++++++------------ 1 file changed, 34 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index c8336db298b3..dcbe6b9cbc43 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -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); -- 2.30.2