static void drm_mixer_qos_ctrl(struct device *dev)
{
struct drm_hdmi_context *ctx = to_context(dev);
int win, val, count = 0;
DRM_DEBUG_KMS("%s\n", __func__);
for (win = 0; win < MIXER_WIN_NR; win++)
if (ctx->enabled[win])
count++;
switch (count) {
case 1:
val = 160160;
break;
case 2 ... MIXER_WIN_NR:
val = 267160;
break;
default:
val = 0;
break;
}
DRM_DEBUG_KMS("%s:count[%d]val[%d]\n", __func__, count, val);
#if defined(CONFIG_BUSFREQ_OPP) || defined(CONFIG_BUSFREQ_LOCK_WRAPPER)
if (val == 0)
dev_unlock(ctx->bus_dev, dev);
else
dev_lock(ctx->bus_dev, dev, val);
#endif
}
static int fimc_is_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct v4l2_subdev *sd = platform_get_drvdata(pdev);
struct fimc_is_dev *is_dev = to_fimc_is_dev(sd);
//printk(KERN_INFO "FIMC-IS runtime suspend\n");
if (is_dev->pdata->clk_off) {
is_dev->pdata->clk_off(pdev);
} else {
printk(KERN_ERR "#### failed to Clock OFF ####\n");
return -EINVAL;
}
#if defined(CONFIG_BUSFREQ_OPP) || defined(CONFIG_BUSFREQ_LOCK_WRAPPER)
/* Unlock bus frequency */
dev_unlock(is_dev->bus_dev, dev);
#endif
#if defined(CONFIG_VIDEOBUF2_ION)
if (is_dev->alloc_ctx)
fimc_is_mem_suspend(is_dev->alloc_ctx);
#endif
mutex_lock(&is_dev->lock);
clear_bit(IS_PWR_ST_POWERON, &is_dev->power);
set_bit(IS_PWR_ST_POWEROFF, &is_dev->power);
mutex_unlock(&is_dev->lock);
//printk(KERN_INFO "FIMC-IS runtime suspend end\n");
return 0;
}
/*:::::*/
int fb_SerialClose( FB_FILE *handle, void *pvHandle )
{
int SerialFD;
struct termios oserp;
#ifdef HAS_LOCKDEV
pid_t plckid;
#endif
LINUX_SERIAL_INFO *pInfo = (LINUX_SERIAL_INFO *) pvHandle;
SerialFD = pInfo->sfd;
oserp = pInfo->oldtty;
#ifdef HAS_LOCKDEV
plckid = pInfo->pplckid;
#endif
#ifdef HAS_LOCKDEV
dev_unlock(DeviceName, plckid);
#endif
/* Restore old parameter of serial line */
tcsetattr( SerialFD, TCSAFLUSH, &oserp);
close(SerialFD);
free(pInfo);
return fb_ErrorSetNum( FB_RTERROR_OK );
}
int s3cfb_disable_window(struct s3cfb_global *fbdev, int id)
{
struct s3cfb_window *win = fbdev->fb[id]->par;
if (win->enabled)
atomic_dec(&fbdev->enabled_win);
if (s3cfb_window_off(fbdev, id)) {
win->enabled = 1;
return -EFAULT;
} else {
win->enabled = 0;
#ifdef CONFIG_BUSFREQ_OPP
if (soc_is_exynos4212() || soc_is_exynos4412()) {
int win_status = 0, i;
for (i = 0; i < 5; i++) { /* exynos4x12 has 5 windows */
win = fbdev->fb[i]->par;
if (win->enabled)
win_status |= (1 << i);
}
win_status &= ~(1 << CONFIG_FB_S5P_DEFAULT_WINDOW);
if (0 == win_status) //check if all window be turned off except default
dev_unlock(fbdev->bus_dev, fbdev->dev);
}
#endif
return 0;
}
}
static int
gp_port_serial_unlock (GPPort *dev, const char *path)
{
#if defined(HAVE_TTYLOCK)
if (ttyunlock ((char*) path)) {
if (dev)
gp_port_set_error (dev, _("Device '%s' could not be "
"unlocked."), path);
return (GP_ERROR_IO_LOCK);
}
#elif defined(HAVE_LOCKDEV)
int pid;
pid = dev_unlock (path, 0);
if (pid) {
if (dev) {
if (pid > 0)
gp_port_set_error (dev, _("Device '%s' could "
"not be unlocked as it is locked by "
"pid %d."), path, pid);
else
gp_port_set_error (dev, _("Device '%s' could "
"not be unlocked (dev_unlock "
"returned %d)"), path, pid);
}
return (GP_ERROR_IO_LOCK);
}
#endif /* !HAVE_LOCKDEV */
return (GP_OK);
}
static int jpeg_m2m_release(struct file *file)
{
struct jpeg_ctx *ctx = file->private_data;
unsigned long flags;
spin_lock_irqsave(&ctx->slock, flags);
if (test_bit(0, &ctx->dev->hw_run) == 0)
del_timer_sync(&ctx->dev->watchdog_timer);
v4l2_m2m_ctx_release(ctx->m2m_ctx);
spin_unlock_irqrestore(&ctx->slock, flags);
#ifdef CONFIG_PM_RUNTIME
#if defined (CONFIG_CPU_EXYNOS5250)
ctx->dev->vb2->suspend(ctx->dev->alloc_ctx);
#ifdef CONFIG_BUSFREQ_OPP
/* Unlock bus frequency */
dev_unlock(ctx->dev->bus_dev, &ctx->dev->plat_dev->dev);
#endif
#else
pm_runtime_put_sync(&ctx->dev->plat_dev->dev);
#endif
#endif
clk_disable(ctx->dev->clk);
kfree(ctx);
return 0;
}
static void
ctty_clone(void *arg, struct ucred *cred, char *name, int namelen,
struct cdev **dev)
{
if (*dev != NULL)
return;
if (strcmp(name, "tty"))
return;
sx_sunlock(&clone_drain_lock);
sx_slock(&proctree_lock);
sx_slock(&clone_drain_lock);
dev_lock();
if (!(curthread->td_proc->p_flag & P_CONTROLT))
*dev = ctty;
else if (curthread->td_proc->p_session->s_ttyvp == NULL)
*dev = ctty;
else if (curthread->td_proc->p_session->s_ttyvp->v_type == VBAD ||
curthread->td_proc->p_session->s_ttyvp->v_rdev == NULL) {
/* e.g. s_ttyvp was revoked */
*dev = ctty;
} else
*dev = curthread->td_proc->p_session->s_ttyvp->v_rdev;
dev_refl(*dev);
dev_unlock();
sx_sunlock(&proctree_lock);
}
static int jpeg_hx_remove(struct platform_device *pdev)
{
struct jpeg_dev *dev = platform_get_drvdata(pdev);
del_timer_sync(&dev->watchdog_timer);
flush_workqueue(dev->watchdog_workqueue);
destroy_workqueue(dev->watchdog_workqueue);
v4l2_m2m_release(dev->m2m_dev_enc);
video_unregister_device(dev->vfd_enc);
v4l2_m2m_release(dev->m2m_dev_dec);
video_unregister_device(dev->vfd_dec);
v4l2_device_unregister(&dev->v4l2_dev);
dev->vb2->cleanup(dev->alloc_ctx);
free_irq(dev->irq_no, pdev);
mutex_destroy(&dev->lock);
iounmap(dev->reg_base);
clk_put(dev->clk);
clk_put(dev->sclk_clk);
#ifdef CONFIG_BUSFREQ_OPP
/* lock bus frequency */
dev_unlock(dev->bus_dev, &pdev->dev);
#endif
kfree(dev);
return 0;
}
static int exynos_frequency_unlock(struct device *dev)
{
int ret = 0;
struct device *busdev = dev_get("exynos-busfreq");
if (atomic_read(&umts_link_pm_data.freqlock) == 1) {
/* cpu frequency unlock */
exynos_cpufreq_lock_free(DVFS_LOCK_ID_USB_IF);
/* bus frequency unlock */
ret = dev_unlock(busdev, dev);
if (ret < 0) {
mif_err("ERR: dev_unlock error: %d\n", ret);
goto exit;
}
/* unlock minimum number of cpu cores */
cpufreq_pegasusq_min_cpu_unlock();
atomic_set(&umts_link_pm_data.freqlock, 0);
mif_debug("success\n");
}
exit:
return ret;
}
int s3cfb_disable_window(struct s3cfb_global *fbdev, int id)
{
struct s3cfb_window *win = fbdev->fb[id]->par;
#ifdef FEATURE_BUSFREQ_LOCK
int enabled_win = 0;
#endif
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)
#ifdef CONFIG_BUSFREQ_OPP
int win_status;
#endif
#endif
if (win->enabled)
atomic_dec(&fbdev->enabled_win);
if (fbdev->regs != 0 && s3cfb_window_off(fbdev, id)) {
win->enabled = 1;
return -EFAULT;
} else {
#ifdef FEATURE_BUSFREQ_LOCK
enabled_win = atomic_read(&fbdev->enabled_win);
if (enabled_win < 2)
s3cfb_busfreq_lock(fbdev, 0);
#endif
win->enabled = 0;
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)
#ifdef CONFIG_BUSFREQ_OPP
win_status = window_on_off_status(fbdev);
if ((win_status & ~(1 << CONFIG_FB_S5P_DEFAULT_WINDOW)) == 0)
dev_unlock(fbdev->bus_dev, fbdev->dev);
#endif
#endif
return 0;
}
}
/**
* exynos_tc_volt - locks or frees vdd_arm, vdd_mif/int and vdd_g3d for
* temperature compensation.
*
* This function limits or free voltage of cpufreq, busfreq, and mali driver
* according to 2nd arguments.
*/
static int exynos_tc_volt(struct s5p_tmu_info *info, int enable)
{
struct s5p_platform_tmu *data;
static int usage;
int ret = 0;
if (!info || !(info->dev))
return -EPERM;
data = info->dev->platform_data;
if (enable == usage) {
pr_debug("TMU: already is %s.\n",
enable ? "locked" : "unlocked");
return 0;
}
if (enable) {
ret = exynos_cpufreq_lock(DVFS_LOCK_ID_TMU, info->cpulevel_tc);
if (ret)
goto err_lock;
#ifdef CONFIG_BUSFREQ_OPP
ret = dev_lock(info->bus_dev, info->dev, info->busfreq_tc);
if (ret)
goto err_lock;
#endif
#if defined(CONFIG_VIDEO_MALI400MP)
ret = mali_voltage_lock_push(data->temp_compensate.g3d_volt);
if (ret < 0) {
pr_err("TMU: g3d_push error: %u uV\n",
data->temp_compensate.g3d_volt);
goto err_lock;
}
#endif
} else {
exynos_cpufreq_lock_free(DVFS_LOCK_ID_TMU);
#ifdef CONFIG_BUSFREQ_OPP
ret = dev_unlock(info->bus_dev, info->dev);
if (ret)
goto err_unlock;
#endif
#if defined(CONFIG_VIDEO_MALI400MP)
ret = mali_voltage_lock_pop();
if (ret < 0) {
pr_err("TMU: g3d_pop error\n");
goto err_unlock;
}
#endif
}
usage = enable;
pr_info("TMU: %s is ok!\n", enable ? "lock" : "unlock");
return ret;
err_lock:
err_unlock:
pr_err("TMU: %s is fail.\n", enable ? "lock" : "unlock");
return ret;
}
static void busfreq_early_suspend(struct early_suspend *h)
{
unsigned long freq;
struct busfreq_data *data = container_of(h, struct busfreq_data,
busfreq_early_suspend_handler);
freq = data->min_freq[PPMU_MIF] + data->min_freq[PPMU_INT] / 1000;
//dev_lock(data->dev[PPMU_MIF], data->dev[PPMU_MIF], freq);
dev_unlock(data->dev[PPMU_MIF], data->dev[PPMU_MIF]);
}
void
dev_relthread(struct cdev *dev)
{
mtx_assert(&devmtx, MA_NOTOWNED);
dev_lock();
KASSERT(dev->si_threadcount > 0,
("%s threadcount is wrong", dev->si_name));
dev->si_threadcount--;
dev_unlock();
}
struct cdevsw *
devvn_refthread(struct vnode *vp, struct cdev **devp, int *ref)
{
struct cdevsw *csw;
struct cdev_priv *cdp;
struct cdev *dev;
mtx_assert(&devmtx, MA_NOTOWNED);
if ((vp->v_vflag & VV_ETERNALDEV) != 0) {
dev = vp->v_rdev;
if (dev == NULL)
return (NULL);
KASSERT((dev->si_flags & SI_ETERNAL) != 0,
("Not eternal cdev"));
*ref = 0;
csw = dev->si_devsw;
KASSERT(csw != NULL, ("Eternal cdev is destroyed"));
*devp = dev;
return (csw);
}
csw = NULL;
dev_lock();
dev = vp->v_rdev;
if (dev == NULL) {
dev_unlock();
return (NULL);
}
cdp = cdev2priv(dev);
if ((cdp->cdp_flags & CDP_SCHED_DTR) == 0) {
csw = dev->si_devsw;
if (csw != NULL)
dev->si_threadcount++;
}
dev_unlock();
if (csw != NULL) {
*devp = dev;
*ref = 1;
}
return (csw);
}
void Modem::unlockDevice()
{
#ifdef HAVE_LOCKDEV
dev_unlock( (*prefs).serialDevice().local8Bit(), getpid() );
#else
if ( is_locked ) {
QStringList pathList = QStringList::split( "/", (*prefs).serialDevice() );
QFile::remove( (*prefs).lockDirectory() + "/LCK.." + pathList.last() );
is_locked = false;
}
#endif
}
static int jpeg_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct jpeg_dev *jpeg_drv = platform_get_drvdata(pdev);
#ifdef CONFIG_BUSFREQ_OPP
/* lock bus frequency */
dev_unlock(jpeg_drv->bus_dev, dev);
#endif
jpeg_drv->vb2->suspend(jpeg_drv->alloc_ctx);
/* clock disable */
clk_disable(jpeg_drv->clk);
return 0;
}
void free_dvfs_lock(struct work_struct *work)
{
struct wacom_i2c *wac_i2c =
container_of(work, struct wacom_i2c, dvfs_work.work);
if (wac_i2c->dvfs_lock_status)
dev_lock(wac_i2c->bus_dev,
wac_i2c->dev, SEC_BUS_LOCK_FREQ);
else {
dev_unlock(wac_i2c->bus_dev, wac_i2c->dev);
exynos_cpufreq_lock_free(DVFS_LOCK_ID_PEN);
}
}
int s3cfb_extdsp_disable_window(struct s3cfb_extdsp_global *fbdev, int id)
{
struct s3cfb_extdsp_window *win = fbdev->fb[id]->par;
if (win->enabled)
atomic_dec(&fbdev->enabled_win);
#ifdef CONFIG_BUSFREQ_OPP
dev_unlock(fbdev->bus_dev, fbdev->dev);
#endif
win->enabled = 0;
return 0;
}
void free_dvfs_lock(struct work_struct *work)
{
struct wacom_i2c *wac_i2c =
container_of(work, struct wacom_i2c, dvfs_work.work);
#ifdef SEC_BUS_LOCK
#if defined(CONFIG_MACH_P4NOTE)
dev_unlock(wac_i2c->bus_dev, wac_i2c->dev);
#else
exynos4_busfreq_lock_free(DVFS_LOCK_ID_PEN);
#endif
#endif /* SEC_BUS_LOCK */
exynos_cpufreq_lock_free(DVFS_LOCK_ID_PEN);
wac_i2c->dvfs_lock_status = false;
}
static int jpeg_hx_suspend(struct platform_device *pdev, pm_message_t state)
{
struct jpeg_dev *dev = platform_get_drvdata(pdev);
if (dev->ctx) {
dev->vb2->suspend(dev->alloc_ctx);
clk_disable(dev->clk);
clk_disable(dev->sclk_clk);
}
#ifdef CONFIG_BUSFREQ_OPP
/* lock bus frequency */
dev_unlock(dev->bus_dev, &pdev->dev);
#endif
return 0;
}
static int jpeg_hx_m2m_release(struct file *file)
{
struct jpeg_ctx *ctx = file->private_data;
v4l2_m2m_ctx_release(ctx->m2m_ctx);
#ifdef CONFIG_BUSFREQ_OPP
/* Unlock bus frequency */
dev_unlock(ctx->dev->bus_dev, &ctx->dev->plat_dev->dev);
#endif
ctx->dev->vb2->suspend(ctx->dev->alloc_ctx);
clk_disable(ctx->dev->clk);
clk_disable(ctx->dev->sclk_clk);
kfree(ctx);
return 0;
}
static int jpeg_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct jpeg_dev *jpeg_drv = platform_get_drvdata(pdev);
#if defined(CONFIG_MACH_P11) || defined(CONFIG_MACH_P10)
return 0;
#endif
#ifdef CONFIG_BUSFREQ_OPP
/* lock bus frequency */
dev_unlock(jpeg_drv->bus_dev, dev);
#endif
jpeg_drv->vb2->suspend(jpeg_drv->alloc_ctx);
return 0;
}
static void set_dvfs_off(struct work_struct *work)
{
int ret;
if (dvfs_lock_status && !press_status) {
ret = dev_unlock(bus_dev, sec_touchscreen);
if (ret < 0) {
pr_err("%s: bus unlock failed(%d)\n",
__func__, __LINE__);
return;
}
exynos_cpufreq_lock_free(DVFS_LOCK_ID_TSP);
dvfs_lock_status = false;
#if DEBUG_PRINT
pr_info("[TSP] TSP DVFS mode exit ");
#endif
}
}
bool KMobileDevice::unlockDevice(const QString &device)
{
#ifdef HAVE_BAUDBOY_H
return ttyunlock(device.local8bit()) == EXIT_SUCCESS;
#else
# ifdef HAVE_LOCKDEV_H
return 0 <= dev_unlock(device.local8bit(), getpid());
# else
QStringList all = QStringList::split('/', device);
if (!all.count()) return false;
QString lockName = DEVICE_LOCK_PATH_PREFIX + all[all.count()-1];
QFile file(lockName);
if (!file.exists())
return true;
return file.remove();
# endif
#endif
}
static void mxr_graph_stream_set(struct mxr_layer *layer, int en)
{
struct mxr_device *mdev = layer->mdev;
exynos_cpufreq_lock_freq(en, MAX_CPU_FREQ);
#ifdef CONFIG_BUSFREQ_OPP
if (en)
dev_lock(mdev->bus_dev, mdev->dev, BUSFREQ_400MHZ);
else
dev_unlock(mdev->bus_dev, mdev->dev);
#endif
#ifdef CONFIG_ARM_EXYNOS4_BUS_DEVFREQ
exynos4_busfreq_lock(!en);
#endif
mxr_reg_graph_layer_stream(layer->mdev, layer->idx, en);
}
struct cdevsw *
dev_refthread(struct cdev *dev)
{
struct cdevsw *csw;
struct cdev_priv *cdp;
mtx_assert(&devmtx, MA_NOTOWNED);
dev_lock();
csw = dev->si_devsw;
if (csw != NULL) {
cdp = cdev2priv(dev);
if ((cdp->cdp_flags & CDP_SCHED_DTR) == 0)
dev->si_threadcount++;
else
csw = NULL;
}
dev_unlock();
return (csw);
}
/**
* exynos_tc_volt - locks or frees vdd_arm, vdd_mif/int and vdd_g3d for
* temperature compensation.
*
* This function limits or free voltage of cpufreq, busfreq, and mali driver
* according to 2nd arguments.
*/
static int exynos_tc_volt(struct s5p_tmu_info *info, int enable)
{
struct s5p_platform_tmu *data;
static int usage;
int ret = 0;
if (!info || !(info->dev))
return -EPERM;
data = info->dev->platform_data;
if (enable == usage) {
pr_debug("TMU: already is %s.\n",
enable ? "locked" : "unlocked");
return 0;
}
if (enable) {
ret = exynos_cpufreq_lock(DVFS_LOCK_ID_TMU, info->cpulevel_tc);
if (ret)
goto err_lock;
#ifdef CONFIG_BUSFREQ_OPP
ret = dev_lock(info->bus_dev, info->dev, info->busfreq_tc);
if (ret)
goto err_lock;
#endif
} else {
exynos_cpufreq_lock_free(DVFS_LOCK_ID_TMU);
#ifdef CONFIG_BUSFREQ_OPP
ret = dev_unlock(info->bus_dev, info->dev);
if (ret)
goto err_unlock;
#endif
}
usage = enable;
pr_info("TMU: %s is ok!\n", enable ? "lock" : "unlock");
return ret;
err_lock:
err_unlock:
pr_err("TMU: %s is fail.\n", enable ? "lock" : "unlock");
return ret;
}
static int jpeg_suspend(struct platform_device *pdev, pm_message_t state)
{
#ifdef CONFIG_PM_RUNTIME
#if defined (CONFIG_CPU_EXYNOS5250)
struct jpeg_dev *dev = platform_get_drvdata(pdev);
if (dev->ctx) {
dev->vb2->suspend(dev->alloc_ctx);
clk_disable(dev->clk);
}
#ifdef CONFIG_BUSFREQ_OPP
/* lock bus frequency */
dev_unlock(dev->bus_dev, &pdev->dev);
#endif
#else
pm_runtime_put_sync(&pdev->dev);
#endif
#endif
return 0;
}
struct cdevsw *
devvn_refthread(struct vnode *vp, struct cdev **devp)
{
struct cdevsw *csw;
struct cdev_priv *cdp;
mtx_assert(&devmtx, MA_NOTOWNED);
csw = NULL;
dev_lock();
*devp = vp->v_rdev;
if (*devp != NULL) {
cdp = cdev2priv(*devp);
if ((cdp->cdp_flags & CDP_SCHED_DTR) == 0) {
csw = (*devp)->si_devsw;
if (csw != NULL)
(*devp)->si_threadcount++;
}
}
dev_unlock();
return (csw);
}
static int fimc_is_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct v4l2_subdev *sd = platform_get_drvdata(pdev);
struct fimc_is_dev *is_dev = to_fimc_is_dev(sd);
printk(KERN_INFO "FIMC-IS runtime suspend\n");
if (is_dev->pdata->clk_off) {
is_dev->pdata->clk_off(pdev);
} else {
printk(KERN_ERR "#### failed to Clock OFF ####\n");
return -EINVAL;
}
#if defined(CONFIG_BUSFREQ_OPP) || defined(CONFIG_BUSFREQ_LOCK_WRAPPER)
/* Unlock bus frequency */
pm_qos_remove_request(&bus_qos_pm_qos_req);
dev_unlock(is_dev->bus_dev, dev);
#endif
#ifdef CONFIG_EXYNOS4_CPUFREQ
exynos_cpufreq_lock_free(DVFS_LOCK_ID_CAM);
#endif
#if defined(CONFIG_VIDEOBUF2_ION)
if (is_dev->alloc_ctx)
fimc_is_mem_suspend(is_dev->alloc_ctx);
#endif
mutex_lock(&is_dev->lock);
clear_bit(IS_PWR_ST_POWERON, &is_dev->power);
set_bit(IS_PWR_ST_POWEROFF, &is_dev->power);
mutex_unlock(&is_dev->lock);
#ifdef CONFIG_REGULATOR
regulator_disable(is_dev->r_vdd18_cam);
regulator_disable(is_dev->r_vddio18_cam);
regulator_disable(is_dev->r_vdd28_af_cam);
regulator_disable(is_dev->r_vadd28_cam);
#endif
printk(KERN_INFO "FIMC-IS runtime suspend end\n");
return 0;
}