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drm/i915/vlv: enable HDA display audio for Valleyview2 

This patch defines HD-Audio configuration registers and enables display audio
from HDA controller for Valleyview2.

v2: fix missing offset VLV_DISPLAY_BASE
v3: rename patch from 'enable HDMI audio' to 'enable HDA display audio', since
    it's for both HDMI and DP audio
v4: use enc_to_dig_port() to get port number, instead of using Haswell specific
    function intel_ddi_get_encoder_port()

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Mengdong Lin 2013-11-01 00:17:03 -04:00 committed by Daniel Vetter
parent 48f34e1016
commit 9ca2fe731b
2 changed files with 38 additions and 3 deletions
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18
drivers/gpu/drm/i915/i915_reg.h
View File

@ -4948,6 +4948,18 @@
CPT_AUD_CNTL_ST_B)
#define CPT_AUD_CNTRL_ST2 0xE50C0
#define VLV_HDMIW_HDMIEDID_A (VLV_DISPLAY_BASE + 0x62050)
#define VLV_HDMIW_HDMIEDID_B (VLV_DISPLAY_BASE + 0x62150)
#define VLV_HDMIW_HDMIEDID(pipe) _PIPE(pipe, \
VLV_HDMIW_HDMIEDID_A, \
VLV_HDMIW_HDMIEDID_B)
#define VLV_AUD_CNTL_ST_A (VLV_DISPLAY_BASE + 0x620B4)
#define VLV_AUD_CNTL_ST_B (VLV_DISPLAY_BASE + 0x621B4)
#define VLV_AUD_CNTL_ST(pipe) _PIPE(pipe, \
VLV_AUD_CNTL_ST_A, \
VLV_AUD_CNTL_ST_B)
#define VLV_AUD_CNTL_ST2 (VLV_DISPLAY_BASE + 0x620C0)
/* These are the 4 32-bit write offset registers for each stream
* output buffer. It determines the offset from the
* 3DSTATE_SO_BUFFERs that the next streamed vertex output goes to.
@ -4964,6 +4976,12 @@
#define CPT_AUD_CFG(pipe) _PIPE(pipe, \
CPT_AUD_CONFIG_A, \
CPT_AUD_CONFIG_B)
#define VLV_AUD_CONFIG_A (VLV_DISPLAY_BASE + 0x62000)
#define VLV_AUD_CONFIG_B (VLV_DISPLAY_BASE + 0x62100)
#define VLV_AUD_CFG(pipe) _PIPE(pipe, \
VLV_AUD_CONFIG_A, \
VLV_AUD_CONFIG_B)
#define AUD_CONFIG_N_VALUE_INDEX (1 << 29)
#define AUD_CONFIG_N_PROG_ENABLE (1 << 28)
#define AUD_CONFIG_UPPER_N_SHIFT 20

23
drivers/gpu/drm/i915/intel_display.c
View File

@ -6989,6 +6989,11 @@ static void ironlake_write_eld(struct drm_connector *connector,
aud_config = IBX_AUD_CFG(pipe);
aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
} else if (IS_VALLEYVIEW(connector->dev)) {
hdmiw_hdmiedid = VLV_HDMIW_HDMIEDID(pipe);
aud_config = VLV_AUD_CFG(pipe);
aud_cntl_st = VLV_AUD_CNTL_ST(pipe);
aud_cntrl_st2 = VLV_AUD_CNTL_ST2;
} else {
hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
aud_config = CPT_AUD_CFG(pipe);
@ -6998,8 +7003,19 @@ static void ironlake_write_eld(struct drm_connector *connector,
DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
i = I915_READ(aud_cntl_st);
i = (i >> 29) & DIP_PORT_SEL_MASK; /* DIP_Port_Select, 0x1 = PortB */
if (IS_VALLEYVIEW(connector->dev)) {
struct intel_encoder *intel_encoder;
struct intel_digital_port *intel_dig_port;
intel_encoder = intel_attached_encoder(connector);
intel_dig_port = enc_to_dig_port(&intel_encoder->base);
i = intel_dig_port->port;
} else {
i = I915_READ(aud_cntl_st);
i = (i >> 29) & DIP_PORT_SEL_MASK;
/* DIP_Port_Select, 0x1 = PortB */
}
if (!i) {
DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
/* operate blindly on all ports */
@ -10317,7 +10333,8 @@ static void intel_init_display(struct drm_device *dev)
}
} else if (IS_G4X(dev)) {
dev_priv->display.write_eld = g4x_write_eld;
}
} else if (IS_VALLEYVIEW(dev))
dev_priv->display.write_eld = ironlake_write_eld;
/* Default just returns -ENODEV to indicate unsupported */
dev_priv->display.queue_flip = intel_default_queue_flip;