linux-kernel - [PATCH 15/27] ALSA: hda - Use timecounter

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Date:   Fri, 15 Dec 2017 13:08:30 +0530
From:   Sagar Arun Kamble <sagar.a.kamble@...el.com>
To:     linux-kernel@...r.kernel.org
Cc:     Sagar Arun Kamble <sagar.a.kamble@...el.com>,
        Richard Cochran <richardcochran@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vinod Koul <vinod.koul@...el.com>, alsa-devel@...a-project.org
Subject: [PATCH 15/27] ALSA: hda - Use timecounter_initialize interface

With new interface timecounter_initialize we can initialize timecounter
fields and underlying cyclecounter together. Update azx timecounter
init with this new function.

Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@...el.com>
Cc: Richard Cochran <richardcochran@...il.com>
Cc: Jaroslav Kysela <perex@...ex.cz>
Cc: Takashi Iwai <tiwai@...e.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Vinod Koul <vinod.koul@...el.com>
Cc: alsa-devel@...a-project.org
Cc: linux-kernel@...r.kernel.org
---
 sound/hda/hdac_stream.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
index 9426c1a..ad91dde 100644
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -477,12 +477,8 @@ static void azx_timecounter_init(struct hdac_stream *azx_dev,
 				 bool force, u64 last)
 {
 	struct timecounter *tc = &azx_dev->tc;
-	struct cyclecounter *cc = &azx_dev->tc.cc;
 	u64 nsec;
 
-	cc->read = azx_cc_read;
-	cc->mask = CLOCKSOURCE_MASK(32);
-
 	/*
 	 * Converting from 24 MHz to ns means applying a 125/3 factor.
 	 * To avoid any saturation issues in intermediate operations,
@@ -493,11 +489,13 @@ static void azx_timecounter_init(struct hdac_stream *azx_dev,
 	 * overflows occur after about 4 hours or less, not a option.
 	 */
 
-	cc->mult = 125; /* saturation after 195 years */
-	cc->shift = 0;
-
 	nsec = 0; /* audio time is elapsed time since trigger */
-	timecounter_init(tc, nsec);
+	timecounter_initialize(tc,
+			       azx_cc_read,
+			       CLOCKSOURCE_MASK(32),
+			       125, /* saturation after 195 years */
+			       0,
+			       nsec);
 	if (force) {
 		/*
 		 * force timecounter to use predefined value,
-- 
1.9.1