UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

Input: cyttsp4 - kill 'defined but not used' compiler warnings 

If both CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME are unset:

drivers/input/touchscreen/cyttsp4_core.c:1556: warning: ‘cyttsp4_core_sleep’ defined but not used
drivers/input/touchscreen/cyttsp4_core.c:1634: warning: ‘cyttsp4_core_wake’ defined but not used

Move cyttsp4_core_sleep(), cyttsp4_core_wake(), and cyttsp4_core_wake_()
(which is called from cyttsp4_core_wake() only) inside the existing section
protected by #if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_RUNTIME)

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Geert Uytterhoeven 2013-08-29 08:40:42 -07:00 committed by Dmitry Torokhov
parent 1ea4c16120
commit ca0abe3d89
1 changed files with 100 additions and 100 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

200
drivers/input/touchscreen/cyttsp4_core.c
View File

@ -1554,106 +1554,6 @@ exit:
return rc;
}
static int cyttsp4_core_sleep(struct cyttsp4 *cd)
{
int rc;
rc = cyttsp4_request_exclusive(cd, cd->dev,
CY_CORE_SLEEP_REQUEST_EXCLUSIVE_TIMEOUT);
if (rc < 0) {
dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
__func__, cd->exclusive_dev, cd->dev);
return 0;
}
rc = cyttsp4_core_sleep_(cd);
if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
else
dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
return rc;
}
static int cyttsp4_core_wake_(struct cyttsp4 *cd)
{
struct device *dev = cd->dev;
int rc;
u8 mode;
int t;
/* Already woken? */
mutex_lock(&cd->system_lock);
if (cd->sleep_state == SS_SLEEP_OFF) {
mutex_unlock(&cd->system_lock);
return 0;
}
cd->int_status &= ~CY_INT_IGNORE;
cd->int_status |= CY_INT_AWAKE;
cd->sleep_state = SS_WAKING;
if (cd->cpdata->power) {
dev_dbg(dev, "%s: Power up HW\n", __func__);
rc = cd->cpdata->power(cd->cpdata, 1, dev, &cd->ignore_irq);
} else {
dev_dbg(dev, "%s: No power function\n", __func__);
rc = -ENOSYS;
}
if (rc < 0) {
dev_err(dev, "%s: HW Power up fails r=%d\n",
__func__, rc);
/* Initiate a read transaction to wake up */
cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), &mode);
} else
dev_vdbg(cd->dev, "%s: HW power up succeeds\n",
__func__);
mutex_unlock(&cd->system_lock);
t = wait_event_timeout(cd->wait_q,
(cd->int_status & CY_INT_AWAKE) == 0,
msecs_to_jiffies(CY_CORE_WAKEUP_TIMEOUT));
if (IS_TMO(t)) {
dev_err(dev, "%s: TMO waiting for wakeup\n", __func__);
mutex_lock(&cd->system_lock);
cd->int_status &= ~CY_INT_AWAKE;
/* Try starting up */
cyttsp4_queue_startup_(cd);
mutex_unlock(&cd->system_lock);
}
mutex_lock(&cd->system_lock);
cd->sleep_state = SS_SLEEP_OFF;
mutex_unlock(&cd->system_lock);
cyttsp4_start_wd_timer(cd);
return 0;
}
static int cyttsp4_core_wake(struct cyttsp4 *cd)
{
int rc;
rc = cyttsp4_request_exclusive(cd, cd->dev,
CY_CORE_REQUEST_EXCLUSIVE_TIMEOUT);
if (rc < 0) {
dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
__func__, cd->exclusive_dev, cd->dev);
return 0;
}
rc = cyttsp4_core_wake_(cd);
if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
else
dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
return rc;
}
static int cyttsp4_startup_(struct cyttsp4 *cd)
{
int retry = CY_CORE_STARTUP_RETRY_COUNT;
@ -1823,6 +1723,106 @@ static void cyttsp4_free_si_ptrs(struct cyttsp4 *cd)
}
#if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_RUNTIME)
static int cyttsp4_core_sleep(struct cyttsp4 *cd)
{
int rc;
rc = cyttsp4_request_exclusive(cd, cd->dev,
CY_CORE_SLEEP_REQUEST_EXCLUSIVE_TIMEOUT);
if (rc < 0) {
dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
__func__, cd->exclusive_dev, cd->dev);
return 0;
}
rc = cyttsp4_core_sleep_(cd);
if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
else
dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
return rc;
}
static int cyttsp4_core_wake_(struct cyttsp4 *cd)
{
struct device *dev = cd->dev;
int rc;
u8 mode;
int t;
/* Already woken? */
mutex_lock(&cd->system_lock);
if (cd->sleep_state == SS_SLEEP_OFF) {
mutex_unlock(&cd->system_lock);
return 0;
}
cd->int_status &= ~CY_INT_IGNORE;
cd->int_status |= CY_INT_AWAKE;
cd->sleep_state = SS_WAKING;
if (cd->cpdata->power) {
dev_dbg(dev, "%s: Power up HW\n", __func__);
rc = cd->cpdata->power(cd->cpdata, 1, dev, &cd->ignore_irq);
} else {
dev_dbg(dev, "%s: No power function\n", __func__);
rc = -ENOSYS;
}
if (rc < 0) {
dev_err(dev, "%s: HW Power up fails r=%d\n",
__func__, rc);
/* Initiate a read transaction to wake up */
cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), &mode);
} else
dev_vdbg(cd->dev, "%s: HW power up succeeds\n",
__func__);
mutex_unlock(&cd->system_lock);
t = wait_event_timeout(cd->wait_q,
(cd->int_status & CY_INT_AWAKE) == 0,
msecs_to_jiffies(CY_CORE_WAKEUP_TIMEOUT));
if (IS_TMO(t)) {
dev_err(dev, "%s: TMO waiting for wakeup\n", __func__);
mutex_lock(&cd->system_lock);
cd->int_status &= ~CY_INT_AWAKE;
/* Try starting up */
cyttsp4_queue_startup_(cd);
mutex_unlock(&cd->system_lock);
}
mutex_lock(&cd->system_lock);
cd->sleep_state = SS_SLEEP_OFF;
mutex_unlock(&cd->system_lock);
cyttsp4_start_wd_timer(cd);
return 0;
}
static int cyttsp4_core_wake(struct cyttsp4 *cd)
{
int rc;
rc = cyttsp4_request_exclusive(cd, cd->dev,
CY_CORE_REQUEST_EXCLUSIVE_TIMEOUT);
if (rc < 0) {
dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
__func__, cd->exclusive_dev, cd->dev);
return 0;
}
rc = cyttsp4_core_wake_(cd);
if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
else
dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
return rc;
}
static int cyttsp4_core_suspend(struct device *dev)
{
struct cyttsp4 *cd = dev_get_drvdata(dev);