On Mon, Apr 16, 2018 at 11:22:19AM -0700, Jeykumar Sankaran wrote:
> Remove custom ioctl support in SDM845 which allows
> user space to register/unregister for hw events.
>
> Signed-off-by: Jeykumar Sankaran <jsa...@codeaurora.org>
Reviewed-by: Sean Paul <seanp...@chromium.org>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 218
> +------------------------------
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 1 -
> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 31 -----
> drivers/gpu/drm/msm/msm_drv.c | 201 ----------------------------
> drivers/gpu/drm/msm/msm_kms.h | 2 -
> 5 files changed, 1 insertion(+), 452 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index 8e464fa..387919a 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -39,31 +39,6 @@
> #include "dpu_core_perf.h"
> #include "dpu_trace.h"
>
> -struct dpu_crtc_irq_info {
> - struct dpu_irq_callback irq;
> - u32 event;
> - int (*func)(struct drm_crtc *crtc, bool en,
> - struct dpu_irq_callback *irq);
> - struct list_head list;
> -};
> -
> -struct dpu_crtc_custom_events {
> - u32 event;
> - int (*func)(struct drm_crtc *crtc, bool en,
> - struct dpu_irq_callback *irq);
> -};
> -
> -static int dpu_crtc_power_interrupt_handler(struct drm_crtc *crtc_drm,
> - bool en, struct dpu_irq_callback *ad_irq);
> -static int dpu_crtc_idle_interrupt_handler(struct drm_crtc *crtc_drm,
> - bool en, struct dpu_irq_callback *idle_irq);
> -
> -static struct dpu_crtc_custom_events custom_events[] = {
> - {DRM_EVENT_AD_BACKLIGHT, dpu_cp_ad_interrupt},
> - {DRM_EVENT_CRTC_POWER, dpu_crtc_power_interrupt_handler},
> - {DRM_EVENT_IDLE_NOTIFY, dpu_crtc_idle_interrupt_handler}
> -};
> -
> /* layer mixer index on dpu_crtc */
> #define LEFT_MIXER 0
> #define RIGHT_MIXER 1
> @@ -2455,9 +2430,6 @@ static void dpu_crtc_handle_power_event(u32 event_type,
> void *arg)
> struct drm_encoder *encoder;
> struct dpu_crtc_mixer *m;
> u32 i, misr_status;
> - unsigned long flags;
> - struct dpu_crtc_irq_info *node = NULL;
> - int ret = 0;
>
> if (!crtc) {
> DPU_ERROR("invalid crtc\n");
> @@ -2479,17 +2451,6 @@ static void dpu_crtc_handle_power_event(u32
> event_type, void *arg)
> dpu_encoder_virt_restore(encoder);
> }
>
> - spin_lock_irqsave(&dpu_crtc->spin_lock, flags);
> - list_for_each_entry(node, &dpu_crtc->user_event_list, list) {
> - ret = 0;
> - if (node->func)
> - ret = node->func(crtc, true, &node->irq);
> - if (ret)
> - DPU_ERROR("%s failed to enable event %x\n",
> - dpu_crtc->name, node->event);
> - }
> - spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);
> -
> dpu_cp_crtc_post_ipc(crtc);
>
> for (i = 0; i < dpu_crtc->num_mixers; ++i) {
> @@ -2514,18 +2475,6 @@ static void dpu_crtc_handle_power_event(u32
> event_type, void *arg)
> dpu_crtc->misr_data[i];
> }
>
> - spin_lock_irqsave(&dpu_crtc->spin_lock, flags);
> - node = NULL;
> - list_for_each_entry(node, &dpu_crtc->user_event_list, list) {
> - ret = 0;
> - if (node->func)
> - ret = node->func(crtc, false, &node->irq);
> - if (ret)
> - DPU_ERROR("%s failed to disable event %x\n",
> - dpu_crtc->name, node->event);
> - }
> - spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);
> -
> dpu_cp_crtc_pre_ipc(crtc);
> break;
> case DPU_POWER_EVENT_POST_DISABLE:
> @@ -2553,8 +2502,6 @@ static void dpu_crtc_disable(struct drm_crtc *crtc)
> struct drm_display_mode *mode;
> struct drm_encoder *encoder;
> struct msm_drm_private *priv;
> - unsigned long flags;
> - struct dpu_crtc_irq_info *node = NULL;
> struct drm_event event;
> u32 power_on;
> int ret;
> @@ -2614,17 +2561,6 @@ static void dpu_crtc_disable(struct drm_crtc *crtc)
> atomic_set(&dpu_crtc->frame_pending, 0);
> }
>
> - spin_lock_irqsave(&dpu_crtc->spin_lock, flags);
> - list_for_each_entry(node, &dpu_crtc->user_event_list, list) {
> - ret = 0;
> - if (node->func)
> - ret = node->func(crtc, false, &node->irq);
> - if (ret)
> - DPU_ERROR("%s failed to disable event %x\n",
> - dpu_crtc->name, node->event);
> - }
> - spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);
> -
> dpu_core_perf_crtc_update(crtc, 0, true);
>
> drm_for_each_encoder(encoder, crtc->dev) {
> @@ -2656,8 +2592,6 @@ static void dpu_crtc_enable(struct drm_crtc *crtc,
> struct dpu_crtc *dpu_crtc;
> struct drm_encoder *encoder;
> struct msm_drm_private *priv;
> - unsigned long flags;
> - struct dpu_crtc_irq_info *node = NULL;
> struct drm_event event;
> u32 power_on;
> int ret;
> @@ -2709,17 +2643,6 @@ static void dpu_crtc_enable(struct drm_crtc *crtc,
>
> mutex_unlock(&dpu_crtc->crtc_lock);
>
> - spin_lock_irqsave(&dpu_crtc->spin_lock, flags);
> - list_for_each_entry(node, &dpu_crtc->user_event_list, list) {
> - ret = 0;
> - if (node->func)
> - ret = node->func(crtc, true, &node->irq);
> - if (ret)
> - DPU_ERROR("%s failed to enable event %x\n",
> - dpu_crtc->name, node->event);
> - }
> - spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);
> -
> dpu_crtc->power_event = dpu_power_handle_register_event(
> &priv->phandle,
> DPU_POWER_EVENT_POST_ENABLE | DPU_POWER_EVENT_POST_DISABLE |
> @@ -3995,7 +3918,7 @@ struct drm_crtc *dpu_crtc_init(struct drm_device *dev,
> struct drm_plane *plane)
> init_completion(&dpu_crtc->frame_done_comp);
>
> INIT_LIST_HEAD(&dpu_crtc->frame_event_list);
> - INIT_LIST_HEAD(&dpu_crtc->user_event_list);
> +
> for (i = 0; i < ARRAY_SIZE(dpu_crtc->frame_events); i++) {
> INIT_LIST_HEAD(&dpu_crtc->frame_events[i].list);
> list_add(&dpu_crtc->frame_events[i].list,
> @@ -4039,142 +3962,3 @@ struct drm_crtc *dpu_crtc_init(struct drm_device
> *dev, struct drm_plane *plane)
> DPU_DEBUG("%s: successfully initialized crtc\n", dpu_crtc->name);
> return crtc;
> }
> -
> -static int _dpu_crtc_event_enable(struct dpu_kms *kms,
> - struct drm_crtc *crtc_drm, u32 event)
> -{
> - struct dpu_crtc *crtc = NULL;
> - struct dpu_crtc_irq_info *node;
> - struct msm_drm_private *priv;
> - unsigned long flags;
> - bool found = false;
> - int ret, i = 0;
> -
> - crtc = to_dpu_crtc(crtc_drm);
> - spin_lock_irqsave(&crtc->spin_lock, flags);
> - list_for_each_entry(node, &crtc->user_event_list, list) {
> - if (node->event == event) {
> - found = true;
> - break;
> - }
> - }
> - spin_unlock_irqrestore(&crtc->spin_lock, flags);
> -
> - /* event already enabled */
> - if (found)
> - return 0;
> -
> - node = NULL;
> - for (i = 0; i < ARRAY_SIZE(custom_events); i++) {
> - if (custom_events[i].event == event &&
> - custom_events[i].func) {
> - node = kzalloc(sizeof(*node), GFP_KERNEL);
> - if (!node)
> - return -ENOMEM;
> - node->event = event;
> - INIT_LIST_HEAD(&node->list);
> - node->func = custom_events[i].func;
> - node->event = event;
> - break;
> - }
> - }
> -
> - if (!node) {
> - DPU_ERROR("unsupported event %x\n", event);
> - return -EINVAL;
> - }
> -
> - priv = kms->dev->dev_private;
> - ret = 0;
> - if (crtc_drm->enabled) {
> - dpu_power_resource_enable(&priv->phandle, kms->core_client,
> - true);
> - INIT_LIST_HEAD(&node->irq.list);
> - ret = node->func(crtc_drm, true, &node->irq);
> - dpu_power_resource_enable(&priv->phandle, kms->core_client,
> - false);
> - }
> -
> - if (!ret) {
> - spin_lock_irqsave(&crtc->spin_lock, flags);
> - list_add_tail(&node->list, &crtc->user_event_list);
> - spin_unlock_irqrestore(&crtc->spin_lock, flags);
> - } else {
> - kfree(node);
> - }
> -
> - return ret;
> -}
> -
> -static int _dpu_crtc_event_disable(struct dpu_kms *kms,
> - struct drm_crtc *crtc_drm, u32 event)
> -{
> - struct dpu_crtc *crtc = NULL;
> - struct dpu_crtc_irq_info *node = NULL;
> - struct msm_drm_private *priv;
> - unsigned long flags;
> - bool found = false;
> - int ret;
> -
> - crtc = to_dpu_crtc(crtc_drm);
> - spin_lock_irqsave(&crtc->spin_lock, flags);
> - list_for_each_entry(node, &crtc->user_event_list, list) {
> - if (node->event == event) {
> - list_del(&node->list);
> - found = true;
> - break;
> - }
> - }
> - spin_unlock_irqrestore(&crtc->spin_lock, flags);
> -
> - /* event already disabled */
> - if (!found)
> - return 0;
> -
> - /**
> - * crtc is disabled interrupts are cleared remove from the list,
> - * no need to disable/de-register.
> - */
> - if (!crtc_drm->enabled) {
> - kfree(node);
> - return 0;
> - }
> - priv = kms->dev->dev_private;
> - dpu_power_resource_enable(&priv->phandle, kms->core_client, true);
> - ret = node->func(crtc_drm, false, &node->irq);
> - dpu_power_resource_enable(&priv->phandle, kms->core_client, false);
> - return ret;
> -}
> -
> -int dpu_crtc_register_custom_event(struct dpu_kms *kms,
> - struct drm_crtc *crtc_drm, u32 event, bool en)
> -{
> - struct dpu_crtc *crtc = NULL;
> - int ret;
> -
> - crtc = to_dpu_crtc(crtc_drm);
> - if (!crtc || !kms || !kms->dev) {
> - DRM_ERROR("invalid dpu_crtc %pK kms %pK dev %pK\n", crtc,
> - kms, ((kms) ? (kms->dev) : NULL));
> - return -EINVAL;
> - }
> -
> - if (en)
> - ret = _dpu_crtc_event_enable(kms, crtc_drm, event);
> - else
> - ret = _dpu_crtc_event_disable(kms, crtc_drm, event);
> -
> - return ret;
> -}
> -
> -static int dpu_crtc_power_interrupt_handler(struct drm_crtc *crtc_drm,
> - bool en, struct dpu_irq_callback *irq)
> -{
> - return 0;
> -}
> -
> -static int dpu_crtc_idle_interrupt_handler(struct drm_crtc *crtc_drm,
> - bool en, struct dpu_irq_callback *irq)
> -{
> - return 0;
> -}
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> index fade658..bc08416 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> @@ -223,7 +223,6 @@ struct dpu_crtc {
> struct list_head dirty_list;
> struct list_head ad_dirty;
> struct list_head ad_active;
> - struct list_head user_event_list;
>
> struct mutex crtc_lock;
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index 2c187e9..5b07f77 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -90,8 +90,6 @@
>
> static int dpu_kms_hw_init(struct msm_kms *kms);
> static int _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms);
> -static int _dpu_kms_register_events(struct msm_kms *kms,
> - struct drm_mode_object *obj, u32 event, bool en);
> bool dpu_is_custom_client(void)
> {
> return dpucustom;
> @@ -1745,7 +1743,6 @@ static int dpu_kms_pm_resume(struct device *dev)
> .pm_suspend = dpu_kms_pm_suspend,
> .pm_resume = dpu_kms_pm_resume,
> .destroy = dpu_kms_destroy,
> - .register_events = _dpu_kms_register_events,
> .get_address_space = _dpu_kms_get_address_space,
> .postopen = _dpu_kms_post_open,
> };
> @@ -2159,31 +2156,3 @@ struct msm_kms *dpu_kms_init(struct drm_device *dev)
> return &dpu_kms->base;
> }
>
> -static int _dpu_kms_register_events(struct msm_kms *kms,
> - struct drm_mode_object *obj, u32 event, bool en)
> -{
> - int ret = 0;
> - struct drm_crtc *crtc = NULL;
> - struct drm_connector *conn = NULL;
> - struct dpu_kms *dpu_kms = NULL;
> -
> - if (!kms || !obj) {
> - DPU_ERROR("invalid argument kms %pK obj %pK\n", kms, obj);
> - return -EINVAL;
> - }
> -
> - dpu_kms = to_dpu_kms(kms);
> - switch (obj->type) {
> - case DRM_MODE_OBJECT_CRTC:
> - crtc = obj_to_crtc(obj);
> - ret = dpu_crtc_register_custom_event(dpu_kms, crtc, event, en);
> - break;
> - case DRM_MODE_OBJECT_CONNECTOR:
> - conn = obj_to_connector(obj);
> - ret = dpu_connector_register_custom_event(dpu_kms, conn, event,
> - en);
> - break;
> - }
> -
> - return ret;
> -}
> diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
> index 5b12e87..a710b63 100644
> --- a/drivers/gpu/drm/msm/msm_drv.c
> +++ b/drivers/gpu/drm/msm/msm_drv.c
> @@ -1226,180 +1226,6 @@ static int msm_ioctl_submitqueue_close(struct
> drm_device *dev, void *data,
> return msm_submitqueue_remove(file->driver_priv, id);
> }
>
> -static int msm_drm_object_supports_event(struct drm_device *dev,
> - struct drm_msm_event_req *req, struct drm_file *file)
> -{
> - int ret = -EINVAL;
> - struct drm_mode_object *arg_obj;
> -
> - arg_obj = drm_mode_object_find(dev, file, req->object_id,
> req->object_type);
> - if (!arg_obj)
> - return -ENOENT;
> -
> - switch (arg_obj->type) {
> - case DRM_MODE_OBJECT_CRTC:
> - case DRM_MODE_OBJECT_CONNECTOR:
> - ret = 0;
> - break;
> - default:
> - ret = -EOPNOTSUPP;
> - break;
> - }
> -
> - return ret;
> -}
> -
> -static int msm_register_event(struct drm_device *dev,
> - struct drm_msm_event_req *req, struct drm_file *file, bool en)
> -{
> - int ret = -EINVAL;
> - struct msm_drm_private *priv = dev->dev_private;
> - struct msm_kms *kms = priv->kms;
> - struct drm_mode_object *arg_obj;
> -
> - arg_obj = drm_mode_object_find(dev, file, req->object_id,
> req->object_type);
> - if (!arg_obj)
> - return -ENOENT;
> -
> - ret = kms->funcs->register_events(kms, arg_obj, req->event, en);
> - return ret;
> -}
> -
> -static int msm_event_client_count(struct drm_device *dev,
> - struct drm_msm_event_req *req_event, bool locked)
> -{
> - struct msm_drm_private *priv = dev->dev_private;
> - unsigned long flag = 0;
> - struct msm_drm_event *node;
> - int count = 0;
> -
> - if (!locked)
> - spin_lock_irqsave(&dev->event_lock, flag);
> - list_for_each_entry(node, &priv->client_event_list, base.link) {
> - if (node->event.type == req_event->event &&
> - node->info.object_id == req_event->object_id)
> - count++;
> - }
> - if (!locked)
> - spin_unlock_irqrestore(&dev->event_lock, flag);
> -
> - return count;
> -}
> -
> -static int msm_ioctl_register_event(struct drm_device *dev, void *data,
> - struct drm_file *file)
> -{
> - struct msm_drm_private *priv = dev->dev_private;
> - struct drm_msm_event_req *req_event = data;
> - struct msm_drm_event *client, *node;
> - unsigned long flag = 0;
> - bool dup_request = false;
> - int ret = 0, count = 0;
> -
> - ret = msm_drm_object_supports_event(dev, req_event, file);
> - if (ret) {
> - DRM_ERROR("unsupported event %x object %x object id %d\n",
> - req_event->event, req_event->object_type,
> - req_event->object_id);
> - return ret;
> - }
> -
> - spin_lock_irqsave(&dev->event_lock, flag);
> - list_for_each_entry(node, &priv->client_event_list, base.link) {
> - if (node->base.file_priv != file)
> - continue;
> - if (node->event.type == req_event->event &&
> - node->info.object_id == req_event->object_id) {
> - DRM_DEBUG("duplicate request for event %x obj id %d\n",
> - node->event.type, node->info.object_id);
> - dup_request = true;
> - break;
> - }
> - }
> - spin_unlock_irqrestore(&dev->event_lock, flag);
> -
> - if (dup_request)
> - return -EALREADY;
> -
> - client = kzalloc(sizeof(*client), GFP_KERNEL);
> - if (!client)
> - return -ENOMEM;
> -
> - client->base.file_priv = file;
> - client->base.event = &client->event;
> - client->event.type = req_event->event;
> - memcpy(&client->info, req_event, sizeof(client->info));
> -
> - /* Get the count of clients that have registered for event.
> - * Event should be enabled for first client, for subsequent enable
> - * calls add to client list and return.
> - */
> - count = msm_event_client_count(dev, req_event, false);
> - /* Add current client to list */
> - spin_lock_irqsave(&dev->event_lock, flag);
> - list_add_tail(&client->base.link, &priv->client_event_list);
> - spin_unlock_irqrestore(&dev->event_lock, flag);
> -
> - if (count)
> - return 0;
> -
> - ret = msm_register_event(dev, req_event, file, true);
> - if (ret) {
> - DRM_ERROR("failed to enable event %x object %x object id %d\n",
> - req_event->event, req_event->object_type,
> - req_event->object_id);
> - spin_lock_irqsave(&dev->event_lock, flag);
> - list_del(&client->base.link);
> - spin_unlock_irqrestore(&dev->event_lock, flag);
> - kfree(client);
> - }
> - return ret;
> -}
> -
> -static int msm_ioctl_deregister_event(struct drm_device *dev, void *data,
> - struct drm_file *file)
> -{
> - struct msm_drm_private *priv = dev->dev_private;
> - struct drm_msm_event_req *req_event = data;
> - struct msm_drm_event *client = NULL, *node, *temp;
> - unsigned long flag = 0;
> - int count = 0;
> - bool found = false;
> - int ret = 0;
> -
> - ret = msm_drm_object_supports_event(dev, req_event, file);
> - if (ret) {
> - DRM_ERROR("unsupported event %x object %x object id %d\n",
> - req_event->event, req_event->object_type,
> - req_event->object_id);
> - return ret;
> - }
> -
> - spin_lock_irqsave(&dev->event_lock, flag);
> - list_for_each_entry_safe(node, temp, &priv->client_event_list,
> - base.link) {
> - if (node->event.type == req_event->event &&
> - node->info.object_id == req_event->object_id &&
> - node->base.file_priv == file) {
> - client = node;
> - list_del(&client->base.link);
> - found = true;
> - kfree(client);
> - break;
> - }
> - }
> - spin_unlock_irqrestore(&dev->event_lock, flag);
> -
> - if (!found)
> - return -ENOENT;
> -
> - count = msm_event_client_count(dev, req_event, false);
> - if (!count)
> - ret = msm_register_event(dev, req_event, file, false);
> -
> - return ret;
> -}
> -
> void msm_mode_object_event_notify(struct drm_mode_object *obj,
> struct drm_device *dev, struct drm_event *event, u8 *payload)
> {
> @@ -1452,29 +1278,6 @@ void msm_mode_object_event_notify(struct
> drm_mode_object *obj,
>
> static int msm_release(struct inode *inode, struct file *filp)
> {
> - struct drm_file *file_priv = filp->private_data;
> - struct drm_minor *minor = file_priv->minor;
> - struct drm_device *dev = minor->dev;
> - struct msm_drm_private *priv = dev->dev_private;
> - struct msm_drm_event *node, *temp;
> - u32 count;
> - unsigned long flags;
> -
> - spin_lock_irqsave(&dev->event_lock, flags);
> - list_for_each_entry_safe(node, temp, &priv->client_event_list,
> - base.link) {
> - if (node->base.file_priv != file_priv)
> - continue;
> - list_del(&node->base.link);
> - spin_unlock_irqrestore(&dev->event_lock, flags);
> - count = msm_event_client_count(dev, &node->info, true);
> - if (!count)
> - msm_register_event(dev, &node->info, file_priv, false);
> - kfree(node);
> - spin_lock_irqsave(&dev->event_lock, flags);
> - }
> - spin_unlock_irqrestore(&dev->event_lock, flags);
> -
> return drm_release(inode, filp);
> }
>
> @@ -1595,10 +1398,6 @@ int msm_ioctl_rmfb2(struct drm_device *dev, void *data,
> #ifdef CONFIG_DRM_MSM_WRITEBACK
> DRM_IOCTL_DEF_DRV(DPU_WB_CONFIG, dpu_wb_config, DRM_UNLOCKED|DRM_AUTH),
> #endif
> - DRM_IOCTL_DEF_DRV(MSM_REGISTER_EVENT, msm_ioctl_register_event,
> - DRM_UNLOCKED|DRM_CONTROL_ALLOW),
> - DRM_IOCTL_DEF_DRV(MSM_DEREGISTER_EVENT, msm_ioctl_deregister_event,
> - DRM_UNLOCKED|DRM_CONTROL_ALLOW),
> DRM_IOCTL_DEF_DRV(MSM_RMFB2, msm_ioctl_rmfb2,
> DRM_CONTROL_ALLOW|DRM_UNLOCKED),
> };
> diff --git a/drivers/gpu/drm/msm/msm_kms.h b/drivers/gpu/drm/msm/msm_kms.h
> index 25800c0..0ae1deb 100644
> --- a/drivers/gpu/drm/msm/msm_kms.h
> +++ b/drivers/gpu/drm/msm/msm_kms.h
> @@ -94,8 +94,6 @@ struct msm_kms_funcs {
> void (*preclose)(struct msm_kms *kms, struct drm_file *file);
> void (*postclose)(struct msm_kms *kms, struct drm_file *file);
> void (*lastclose)(struct msm_kms *kms);
> - int (*register_events)(struct msm_kms *kms,
> - struct drm_mode_object *obj, u32 event, bool en);
> void (*set_encoder_mode)(struct msm_kms *kms,
> struct drm_encoder *encoder,
> bool cmd_mode);
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
> --
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--
Sean Paul, Software Engineer, Google / Chromium OS
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