diff options
| author | Axel Castaneda Gonzalez <x0055901@ti.com> | 2012-05-03 09:00:21 -0500 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-05-11 15:15:22 +0300 |
| commit | 3df9fb5c51ca617e410da890f631100ea9f10652 (patch) | |
| tree | 0f705465db5e66149a14061df988d776f47fe802 /drivers | |
| parent | 7c92af16780c614b493c4e8a9f495f9dc8008de4 (diff) | |
| download | linux-3df9fb5c51ca617e410da890f631100ea9f10652.tar.gz linux-3df9fb5c51ca617e410da890f631100ea9f10652.tar.bz2 linux-3df9fb5c51ca617e410da890f631100ea9f10652.zip | |
OMAPDSS: HDMI: Decouple wrapper enable/disable and audio start/stop
Decouple the enable/disable operation of the HDMI audio wrapper from
audio start/stop. Otherwise, an audio FIFO underflow may occur. The
audio wrapper enablement must be done after configuration and
before audio playback is started.
Signed-off-by: Axel Castaneda Gonzalez <x0055901@ti.com>
Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/omap2/dss/dss_features.c | 2 | ||||
| -rw-r--r-- | drivers/video/omap2/dss/ti_hdmi.h | 6 | ||||
| -rw-r--r-- | drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 19 |
3 files changed, 22 insertions, 5 deletions
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c index 234ed8ad89ea..13b45af5e89d 100644 --- a/drivers/video/omap2/dss/dss_features.c +++ b/drivers/video/omap2/dss/dss_features.c @@ -577,6 +577,8 @@ static const struct ti_hdmi_ip_ops omap4_hdmi_functions = { defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE) .audio_enable = ti_hdmi_4xxx_wp_audio_enable, .audio_disable = ti_hdmi_4xxx_wp_audio_disable, + .audio_start = ti_hdmi_4xxx_audio_start, + .audio_stop = ti_hdmi_4xxx_audio_stop, #endif }; diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h index 4c84a9cf2931..8afdd0b7678a 100644 --- a/drivers/video/omap2/dss/ti_hdmi.h +++ b/drivers/video/omap2/dss/ti_hdmi.h @@ -113,6 +113,10 @@ struct ti_hdmi_ip_ops { int (*audio_enable)(struct hdmi_ip_data *ip_data); void (*audio_disable)(struct hdmi_ip_data *ip_data); + + int (*audio_start)(struct hdmi_ip_data *ip_data); + + void (*audio_stop)(struct hdmi_ip_data *ip_data); #endif }; @@ -190,5 +194,7 @@ void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s); defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE) int ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data); void ti_hdmi_4xxx_wp_audio_disable(struct hdmi_ip_data *ip_data); +int ti_hdmi_4xxx_audio_start(struct hdmi_ip_data *ip_data); +void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data); #endif #endif diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c index a1cbd2fe9889..7b524de831a1 100644 --- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c +++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c @@ -1254,22 +1254,31 @@ int hdmi_config_audio_acr(struct hdmi_ip_data *ip_data, int ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data) { - REG_FLD_MOD(hdmi_av_base(ip_data), - HDMI_CORE_AV_AUD_MODE, true, 0, 0); REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CTRL, true, 31, 31); + return 0; +} + +void ti_hdmi_4xxx_wp_audio_disable(struct hdmi_ip_data *ip_data) +{ + REG_FLD_MOD(hdmi_wp_base(ip_data), + HDMI_WP_AUDIO_CTRL, false, 31, 31); +} + +int ti_hdmi_4xxx_audio_start(struct hdmi_ip_data *ip_data) +{ + REG_FLD_MOD(hdmi_av_base(ip_data), + HDMI_CORE_AV_AUD_MODE, true, 0, 0); REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CTRL, true, 30, 30); return 0; } -void ti_hdmi_4xxx_wp_audio_disable(struct hdmi_ip_data *ip_data) +void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data) { REG_FLD_MOD(hdmi_av_base(ip_data), HDMI_CORE_AV_AUD_MODE, false, 0, 0); REG_FLD_MOD(hdmi_wp_base(ip_data), - HDMI_WP_AUDIO_CTRL, false, 31, 31); - REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CTRL, false, 30, 30); } #endif |