From f4e8db31a83ad019e9ae06edb9c2f89de66bc7b7 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Fri, 14 Jan 2011 22:03:50 +0100
Subject: i2c: Encourage move to dev_pm_ops by warning on use of legacy methods
Since the PM core wishes to transition away from the legacy suspend
and resume methods and since removing them makes using PM core features
like runtime PM much easier start warning when a driver is registered
using the legacy methods.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
drivers/i2c/i2c-core.c | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'drivers/i2c')
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 0f9dc7dc15f1..f0bd5bcdf563 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1124,6 +1124,14 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
if (res)
return res;
+ /* Drivers should switch to dev_pm_ops instead. */
+ if (driver->suspend)
+ pr_warn("i2c-core: driver [%s] using legacy suspend method\n",
+ driver->driver.name);
+ if (driver->resume)
+ pr_warn("i2c-core: driver [%s] using legacy resume method\n",
+ driver->driver.name);
+
pr_debug("i2c-core: driver [%s] registered\n", driver->driver.name);
INIT_LIST_HEAD(&driver->clients);
--
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