linux-kernel - [RESEND PATCH V4 12/26] coresight: etm3x: consolidating initial config

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Message-Id: <1448303598-11249-13-git-send-email-mathieu.poirier@linaro.org>
Date:	Mon, 23 Nov 2015 11:33:04 -0700
From:	Mathieu Poirier <mathieu.poirier@...aro.org>
To:	gregkh@...uxfoundation.org, a.p.zijlstra@...llo.nl,
	alexander.shishkin@...ux.intel.com, acme@...nel.org,
	mingo@...hat.com, corbet@....net, nicolas.pitre@...aro.org
Cc:	zhang.chunyan@...aro.org, mike.leach@....com, tor@...com,
	al.grant@....com, pawel.moll@....com, fainelli@...adcom.com,
	linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [RESEND PATCH V4 12/26] coresight: etm3x: consolidating initial config

There is really no point in having two functions to take care
of doing the initials tracer configuration.  As such moving
everything to 'etm_set_default()'.

Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
 drivers/hwtracing/coresight/coresight-etm3x.c | 37 ++++++++++-----------------
 1 file changed, 14 insertions(+), 23 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index 4c54e104b610..e973e4d13bcb 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -41,7 +41,6 @@ module_param_named(boot_enable, boot_enable, int, S_IRUGO);
 /* The number of ETM/PTM currently registered */
 static int etm_count;
 static struct etm_drvdata *etmdrvdata[NR_CPUS];
-static void etm_init_default_data(struct etm_config *config);
 
 /*
  * Memory mapped writes to clear os lock are not supported on some processors
@@ -199,7 +198,7 @@ struct etm_config *get_etm_config(struct etm_drvdata *drvdata)
 		return NULL;
 
 	/* Set default config */
-	etm_init_default_data(config);
+	etm_set_default(config);
 	drvdata->config = config;
 out:
 	return drvdata->config;
@@ -212,6 +211,19 @@ void etm_set_default(struct etm_config *config)
 	if (WARN_ON_ONCE(!config))
 		return;
 
+	/*
+	 * Taken verbatim from the TRM:
+	 *
+	 * To trace all memory:
+	 *  set bit [24] in register 0x009, the ETMTECR1, to 1
+	 *  set all other bits in register 0x009, the ETMTECR1, to 0
+	 *  set all bits in register 0x007, the ETMTECR2, to 0
+	 *  set register 0x008, the ETMTEEVR, to 0x6F (TRUE).
+	 */
+	config->enable_ctrl1 = BIT(24);
+	config->enable_ctrl2 = 0x0;
+	config->enable_event = ETM_HARD_WIRE_RES_A;
+
 	config->trigger_event = ETM_DEFAULT_EVENT_VAL;
 	config->enable_event = ETM_HARD_WIRE_RES_A;
 
@@ -605,27 +617,6 @@ static void etm_init_arch_data(void *info)
 	CS_LOCK(drvdata->base);
 }
 
-static void etm_init_default_data(struct etm_config *config)
-{
-	if (WARN_ON_ONCE(!config))
-		return;
-
-	etm_set_default(config);
-
-	/*
-	 * Taken verbatim from the TRM:
-	 *
-	 * To trace all memory:
-	 *  set bit [24] in register 0x009, the ETMTECR1, to 1
-	 *  set all other bits in register 0x009, the ETMTECR1, to 0
-	 *  set all bits in register 0x007, the ETMTECR2, to 0
-	 *  set register 0x008, the ETMTEEVR, to 0x6F (TRUE).
-	 */
-	config->enable_ctrl1 = BIT(24);
-	config->enable_ctrl2 = 0x0;
-	config->enable_event = ETM_HARD_WIRE_RES_A;
-}
-
 static void etm_init_trace_id(struct etm_drvdata *drvdata)
 {
 	/*
-- 
1.9.1

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