msm: 8660: audio: HDMI: Fix the HDMI DMA stop issue
LPA_IF dma channel is disabled without checking the per count value.
Because of this dma channel is not functional after few iterations
of continuous playback. Fix this issue by checking the dma per count
value to stop before disabling the LPA_IF dma channel.
Change-Id: Ie9e9a9337ca2c4b76cebd99cd3eb98137be85b89
Signed-off-by: Deepa Madiregama <dmadireg@codeaurora.org>
diff --git a/drivers/video/msm/hdmi_msm.c b/drivers/video/msm/hdmi_msm.c
index 9805b6c..4b34969 100644
--- a/drivers/video/msm/hdmi_msm.c
+++ b/drivers/video/msm/hdmi_msm.c
@@ -3088,10 +3088,36 @@
HDMI_OUTP(HDMI_AUDIO_CFG, hdmi_audio_config);
+ mb();
+ pr_info("%s :HDMI_AUDIO_CFG 0x%08x\n", __func__,
+ HDMI_INP(HDMI_AUDIO_CFG));
+
return 0;
}
EXPORT_SYMBOL(hdmi_audio_enable);
+#define HDMI_AUDIO_PKT_CTRL 0x0020
+#define HDMI_AUDIO_SAMPLE_SEND_ENABLE 1
+
+int hdmi_audio_packet_enable(bool on)
+{
+ u32 hdmi_audio_pkt_ctrl;
+ hdmi_audio_pkt_ctrl = HDMI_INP(HDMI_AUDIO_PKT_CTRL);
+
+ if (on)
+ hdmi_audio_pkt_ctrl |= HDMI_AUDIO_SAMPLE_SEND_ENABLE;
+ else
+ hdmi_audio_pkt_ctrl &= ~(HDMI_AUDIO_SAMPLE_SEND_ENABLE);
+
+ HDMI_OUTP(HDMI_AUDIO_PKT_CTRL, hdmi_audio_pkt_ctrl);
+
+ mb();
+ pr_info("%s : HDMI_AUDIO_PKT_CTRL 0x%08x\n", __func__,
+ HDMI_INP(HDMI_AUDIO_PKT_CTRL));
+ return 0;
+}
+EXPORT_SYMBOL(hdmi_audio_packet_enable);
+
static void hdmi_msm_audio_info_setup(boolean enabled, int num_of_channels,
int level_shift, boolean down_mix)
{
@@ -3294,7 +3320,8 @@
external_common_state->video_resolution,
MSM_HDMI_SAMPLE_RATE_48KHZ, channels);
hdmi_msm_audio_info_setup(TRUE, channels, 0, FALSE);
- hdmi_msm_audio_ctrl_setup(TRUE, 1);
+
+ hdmi_msm_audio_ctrl_setup(FALSE, 1);
/* Turn on Audio FIFO and SAM DROP ISR */
HDMI_OUTP(0x02CC, HDMI_INP(0x02CC) | BIT(1) | BIT(3));