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[RFC,13/15] hdmi_audio: Fix mishandling of AUD_HDMI_STATUS_v2 register.

Message ID 1457146252-4577-14-git-send-email-pierre-louis.bossart@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Pierre-Louis Bossart March 5, 2016, 2:50 a.m. UTC 
From: Toyo Abe <toyo.abe@gmail.com>

According to the datasheet, write one to clear these UNDERRUN flag bits.
This fixes the following warning in dmesg.

[15357.574902] had: Unable to clear UNDERRUN bits

Signed-off-by: Toyo Abe <toyo.abe@gmail.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/hdmi_audio/intel_mid_hdmi_audio.c | 1 -
 1 file changed, 1 deletion(-)
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Patch

diff --git a/sound/hdmi_audio/intel_mid_hdmi_audio.c b/sound/hdmi_audio/intel_mid_hdmi_audio.c
index e696c80..b86c37a 100644
--- a/sound/hdmi_audio/intel_mid_hdmi_audio.c
+++ b/sound/hdmi_audio/intel_mid_hdmi_audio.c
@@ -1135,7 +1135,6 @@  static void had_clear_underrun_intr_v2(struct snd_intelhad *intelhaddata)
 		pr_debug("HDMI status =0x%x\n", hdmi_status);
 		if (hdmi_status & AUD_CONFIG_MASK_UNDERRUN) {
 			i++;
-			hdmi_status &= ~AUD_CONFIG_MASK_UNDERRUN;
 			had_write_register(AUD_HDMI_STATUS_v2, hdmi_status);
 		} else
 			break;