From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-i2c@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
Luca Ceresoli <luca@lucaceresoli.net>,
Kieran Bingham <kieran@ksquared.org.uk>,
Jacopo Mondi <jacopo@jmondi.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Vladimir Zapolskiy <vz@mleia.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>
Subject: [RFC PATCH 5/5] simple test case for the I2C alias functionality
Date: Tue, 31 Dec 2019 17:14:00 +0100 [thread overview]
Message-ID: <20191231161400.1688-6-wsa+renesas@sang-engineering.com> (raw)
In-Reply-To: <20191231161400.1688-1-wsa+renesas@sang-engineering.com>
Not for upstream!
Not-Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
drivers/i2c/i2c-core-base.c | 2 +-
sound/soc/codecs/ak4642.c | 20 ++++++++++++++++++++
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 0cc4a5c49a15..97d3e9f8dfa7 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -1307,7 +1307,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
adap->lock_ops = &i2c_adapter_lock_ops;
adap->locked_flags = 0;
- adap->alias_idx = 0x08; /* first valid I2C address */
+ adap->alias_idx = 0x3e; /* first valid I2C address */
rt_mutex_init(&adap->bus_lock);
rt_mutex_init(&adap->mux_lock);
mutex_init(&adap->userspace_clients_lock);
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index 353237025514..d34476b80b41 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -639,6 +639,25 @@ static int ak4642_i2c_probe(struct i2c_client *i2c,
struct regmap *regmap;
struct ak4642_priv *priv;
struct clk *mcko = NULL;
+struct i2c_client *test, *test2, *test3;
+
+test = i2c_new_alias_device(i2c->adapter);
+printk(KERN_INFO "****** wsa: %08x %08x\n", test->addr, i2c->adapter->alias_idx);
+
+test2 = i2c_new_alias_device(i2c->adapter);
+printk(KERN_INFO "****** wsa: %08x %08x\n", test2->addr, i2c->adapter->alias_idx);
+
+//i2c_unregister_device(test2);
+//printk(KERN_INFO "****** wsa: %08x %08x\n", test2->addr, i2c->adapter->alias_idx);
+
+i2c_unregister_device(test);
+printk(KERN_INFO "****** wsa: %08x %08x\n", test->addr, i2c->adapter->alias_idx);
+
+test = i2c_new_alias_device(i2c->adapter);
+printk(KERN_INFO "****** wsa: %08x %08x\n", test->addr, i2c->adapter->alias_idx);
+
+test3 = i2c_new_alias_device(i2c->adapter);
+printk(KERN_INFO "****** wsa: %08x %08x\n", test3->addr, i2c->adapter->alias_idx);
if (np) {
const struct of_device_id *of_id;
@@ -659,6 +678,7 @@ static int ak4642_i2c_probe(struct i2c_client *i2c,
return -EINVAL;
}
+
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
--
2.20.1
next prev parent reply other threads:[~2019-12-31 16:14 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-31 16:13 [RFC PATCH 0/5] i2c: implement mechanism to retrieve an alias device Wolfram Sang
2019-12-31 16:13 ` [RFC PATCH 1/5] i2c: core: refactor scanning for a client Wolfram Sang
2020-01-01 16:45 ` Laurent Pinchart
2020-01-07 9:26 ` Kieran Bingham
2020-01-07 9:53 ` Geert Uytterhoeven
2020-01-07 9:58 ` Kieran Bingham
2020-01-07 10:25 ` Wolfram Sang
2020-01-07 10:36 ` Geert Uytterhoeven
2020-01-07 11:23 ` Wolfram Sang
2020-01-07 15:03 ` Luca Ceresoli
2020-01-07 16:45 ` Wolfram Sang
2020-01-07 16:52 ` Kieran Bingham
2019-12-31 16:13 ` [RFC PATCH 2/5] i2c: core: add new variant to check " Wolfram Sang
2020-01-01 16:49 ` Laurent Pinchart
2020-01-07 9:42 ` Kieran Bingham
2019-12-31 16:13 ` [RFC PATCH 3/5] i2c: core: add function to request an alias Wolfram Sang
2020-01-01 16:55 ` Laurent Pinchart
2020-01-02 18:58 ` Luca Ceresoli
2020-01-02 21:13 ` Wolfram Sang
2020-01-02 22:27 ` Luca Ceresoli
2020-01-03 0:10 ` Laurent Pinchart
2020-01-07 15:03 ` Luca Ceresoli
2020-01-07 17:13 ` Laurent Pinchart
2020-01-08 13:27 ` Wolfram Sang
2020-01-08 13:31 ` Laurent Pinchart
2020-01-08 13:38 ` Wolfram Sang
2020-01-08 13:22 ` Wolfram Sang
2020-01-08 13:19 ` Wolfram Sang
2020-01-08 13:29 ` Geert Uytterhoeven
2020-01-08 13:34 ` Laurent Pinchart
2020-01-02 21:03 ` Wolfram Sang
2020-01-21 9:05 ` Peter Rosin
2020-01-07 9:40 ` Kieran Bingham
2020-01-07 17:11 ` Laurent Pinchart
2020-01-07 17:14 ` Kieran Bingham
2020-01-08 13:35 ` Wolfram Sang
2020-01-08 13:36 ` Laurent Pinchart
2019-12-31 16:13 ` [RFC PATCH 4/5] i2c: core: add simple caching to the 'alias' scanning Wolfram Sang
2020-01-07 9:59 ` Kieran Bingham
2020-01-21 9:22 ` Peter Rosin
2019-12-31 16:14 ` Wolfram Sang [this message]
2019-12-31 16:27 ` [RFC PATCH 0/5] i2c: implement mechanism to retrieve an alias device Wolfram Sang
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