leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/i915/audio: add register macros for audio config N value

Browse Source 
Have generic macros in line with the rest of the register bit definition
macros instead of a dedicated function in intel_audio.c, and use them.
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/c8709b065ba5cb91b85c54f4e099219e4e68b192.1476111629.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2016-10-10 18:04:06 +03:00
parent a7c4efbfbe
commit 2561389a12
2 changed files with 10 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/i915_reg.h
View File

@ -7332,6 +7332,10 @@ enum {
#define AUD_CONFIG_UPPER_N_MASK (0xff << 20)
#define AUD_CONFIG_LOWER_N_SHIFT 4
#define AUD_CONFIG_LOWER_N_MASK (0xfff << 4)
#define AUD_CONFIG_N_MASK (AUD_CONFIG_UPPER_N_MASK | AUD_CONFIG_LOWER_N_MASK)
#define AUD_CONFIG_N(n) \
(((((n) >> 12) & 0xff) << AUD_CONFIG_UPPER_N_SHIFT) | \
(((n) & 0xfff) << AUD_CONFIG_LOWER_N_SHIFT))
#define AUD_CONFIG_PIXEL_CLOCK_HDMI_SHIFT 16
#define AUD_CONFIG_PIXEL_CLOCK_HDMI_MASK (0xf << 16)
#define AUD_CONFIG_PIXEL_CLOCK_HDMI_25175 (0 << 16)

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

@ -135,20 +135,6 @@ static int audio_config_get_n(const struct drm_display_mode *adjusted_mode,
return 0;
}
static uint32_t audio_config_setup_n_reg(int n, uint32_t val)
{
int n_low, n_up;
uint32_t tmp = val;
n_low = n & 0xfff;
n_up = (n >> 12) & 0xff;
tmp &= ~(AUD_CONFIG_UPPER_N_MASK | AUD_CONFIG_LOWER_N_MASK);
tmp |= ((n_up << AUD_CONFIG_UPPER_N_SHIFT) |
(n_low << AUD_CONFIG_LOWER_N_SHIFT) |
AUD_CONFIG_N_PROG_ENABLE);
return tmp;
}
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,
@ -271,10 +257,13 @@ hsw_hdmi_audio_config_update(struct intel_crtc *intel_crtc, enum port port,
if (adjusted_mode->crtc_clock == TMDS_296M ||
adjusted_mode->crtc_clock == TMDS_297M) {
n = audio_config_get_n(adjusted_mode, rate);
if (n != 0)
tmp = audio_config_setup_n_reg(n, tmp);
else
if (n != 0) {
tmp &= ~AUD_CONFIG_N_MASK;
tmp |= AUD_CONFIG_N(n);
tmp |= AUD_CONFIG_N_PROG_ENABLE;
} else {
DRM_DEBUG_KMS("no suitable N value is found\n");
}
}
I915_WRITE(HSW_AUD_CFG(pipe), tmp);