diff options
| author | Wu Fengguang <fengguang.wu@intel.com> | 2012-01-06 14:41:31 -0600 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-01-29 16:07:46 +0100 |
| commit | b6daa025b1e1aebf276508eb2a5a9f730391aa84 (patch) | |
| tree | 1d7b344537b409ac6c3af67027927f4326aa8553 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | 6dc0e816bb7478fd4dfebddcc65257f9ef161f7a (diff) | |
drm/i915: set AUD_CONFIG N_value_index for DisplayPort
It should be programmed to "0" for HDMI or "1" for DisplayPort.
This enables DisplayPort audio for
- HP EliteBook 8460p
(whose BIOS does not set the N_value_index bit for us)
- DisplayPort monitor hot plugged after boot
(otherwise most BIOS will fill the N_value_index bit for us)
Tested-by: Robert Lemaire <rlemaire@suse.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index bbad7885348..f4daa6e60b6 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3742,4 +3742,16 @@ */ #define GEN7_SO_WRITE_OFFSET(n) (0x5280 + (n) * 4) +#define IBX_AUD_CONFIG_A 0xe2000 +#define CPT_AUD_CONFIG_A 0xe5000 +#define AUD_CONFIG_N_VALUE_INDEX (1 << 29) +#define AUD_CONFIG_N_PROG_ENABLE (1 << 28) +#define AUD_CONFIG_UPPER_N_SHIFT 20 +#define AUD_CONFIG_UPPER_N_VALUE (0xff << 20) +#define AUD_CONFIG_LOWER_N_SHIFT 4 +#define AUD_CONFIG_LOWER_N_VALUE (0xfff << 4) +#define AUD_CONFIG_PIXEL_CLOCK_HDMI_SHIFT 16 +#define AUD_CONFIG_PIXEL_CLOCK_HDMI (0xf << 16) +#define AUD_CONFIG_DISABLE_NCTS (1 << 3) + #endif /* _I915_REG_H_ */ |