diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/i2c/adv7481.c | 17 | ||||
| -rw-r--r-- | drivers/media/i2c/adv7481_reg.h | 5 | ||||
| -rw-r--r-- | drivers/media/platform/msm/ais/isp/msm_isp.h | 19 | ||||
| -rw-r--r-- | drivers/media/platform/msm/ais/isp/msm_isp47.c | 32 | ||||
| -rw-r--r-- | drivers/media/platform/msm/ais/isp/msm_isp_axi_util.c | 14 | ||||
| -rw-r--r-- | drivers/media/platform/msm/ais/isp/msm_isp_util.c | 182 | ||||
| -rw-r--r-- | drivers/media/platform/msm/camera_v2/isp/msm_buf_mgr.h | 4 | ||||
| -rw-r--r-- | drivers/media/platform/msm/camera_v2/isp/msm_isp.c | 70 | ||||
| -rw-r--r-- | drivers/media/platform/msm/camera_v2/isp/msm_isp.h | 6 | ||||
| -rw-r--r-- | drivers/media/platform/msm/camera_v2/isp/msm_isp47.c | 2 | ||||
| -rw-r--r-- | drivers/media/platform/msm/camera_v2/isp/msm_isp_axi_util.c | 138 | ||||
| -rw-r--r-- | drivers/scsi/sg.c | 28 | ||||
| -rw-r--r-- | drivers/soc/qcom/qdsp6v2/msm_audio_ion_vm.c | 3 | ||||
| -rw-r--r-- | drivers/usb/core/hub.c | 6 | ||||
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 9 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.h | 1 | ||||
| -rw-r--r-- | drivers/video/msm/ba/msm_ba.c | 23 |
18 files changed, 225 insertions, 336 deletions
diff --git a/drivers/media/i2c/adv7481.c b/drivers/media/i2c/adv7481.c index b6b89a9eefe2..74d7b9584827 100644 --- a/drivers/media/i2c/adv7481.c +++ b/drivers/media/i2c/adv7481.c @@ -1005,7 +1005,6 @@ static long adv7481_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { struct adv7481_state *state = to_state(sd); int *ret_val = arg; - uint8_t status = 0; long ret = 0; int param = 0; @@ -1040,22 +1039,6 @@ static long adv7481_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) case VIDIOC_HDMI_RX_CEC_S_ENABLE: ret = adv7481_cec_powerup(state, arg); break; - case VIDIOC_CVBS_G_FIELD_STATUS: - /* Select SDP read-only Map 1 */ - adv7481_wr_byte(&state->i2c_client, state->i2c_sdp_addr, - SDP_RW_MAP_REG, 0x02); - status = adv7481_rd_byte(&state->i2c_client, - state->i2c_sdp_addr, SDP_RO_MAP_1_FIELD_ADDR); - adv7481_wr_byte(&state->i2c_client, state->i2c_sdp_addr, - SDP_RW_MAP_REG, 0x00); - if (ret_val) { - *ret_val = ADV_REG_GETFIELD(status, - SDP_RO_MAP_1_EVEN_FIELD); - } else { - pr_err("%s: NULL pointer provided\n", __func__); - ret = -EINVAL; - } - break; default: pr_err("Not a typewriter! Command: 0x%x", cmd); ret = -ENOTTY; diff --git a/drivers/media/i2c/adv7481_reg.h b/drivers/media/i2c/adv7481_reg.h index 96f0a5df10c0..b0bb5784d2ef 100644 --- a/drivers/media/i2c/adv7481_reg.h +++ b/drivers/media/i2c/adv7481_reg.h @@ -411,11 +411,6 @@ #define SDP_RO_MAIN_IN_LOCK_BMSK 0x0001 #define SDP_RO_MAIN_IN_LOCK_SHFT 0 -/* SDP R/O Map 1 Registers */ -#define SDP_RO_MAP_1_FIELD_ADDR 0x45 -#define SDP_RO_MAP_1_EVEN_FIELD_BMSK 0x10 -#define SDP_RO_MAP_1_EVEN_FIELD_SHFT 4 - /* * CSI Map Registers diff --git a/drivers/media/platform/msm/ais/isp/msm_isp.h b/drivers/media/platform/msm/ais/isp/msm_isp.h index d4c6eba78b78..86974eeb4a32 100644 --- a/drivers/media/platform/msm/ais/isp/msm_isp.h +++ b/drivers/media/platform/msm/ais/isp/msm_isp.h @@ -164,8 +164,6 @@ struct msm_vfe_irq_ops { void (*config_irq)(struct vfe_device *vfe_dev, uint32_t irq_status0, uint32_t irq_status1, enum msm_isp_irq_operation); - void (*process_sof_irq)(struct vfe_device *vfe_dev, - uint32_t irq_status0, uint32_t irq_status1); void (*process_eof_irq)(struct vfe_device *vfe_dev, uint32_t irq_status0); }; @@ -413,12 +411,6 @@ struct msm_vfe_frame_request_queue { #define MSM_VFE_REQUESTQ_SIZE 8 -struct msm_vfe_fields_info { - bool even_field; - struct timeval sof_ts; - struct timeval field_ts; -}; - struct msm_vfe_axi_stream { uint32_t frame_id; enum msm_vfe_axi_state state; @@ -465,11 +457,6 @@ struct msm_vfe_axi_stream { enum msm_stream_memory_input_t memory_input; struct msm_isp_sw_framskip sw_skip; uint8_t sw_ping_pong_bit; - - bool interlaced; - struct msm_vfe_fields_info field_info[2]; - uint32_t field_index; - uint32_t field_type; }; struct msm_vfe_axi_composite_info { @@ -811,12 +798,6 @@ struct vfe_device { /* before halt irq info */ uint32_t recovery_irq0_mask; uint32_t recovery_irq1_mask; - - /* interlaced field info */ - void *ba_inst_hdl; - struct task_struct *field_thread_id; - wait_queue_head_t field_waitqueue; - bool wakeupflag; }; struct vfe_parent_device { diff --git a/drivers/media/platform/msm/ais/isp/msm_isp47.c b/drivers/media/platform/msm/ais/isp/msm_isp47.c index 9da7dee59064..04e879fc3bcf 100644 --- a/drivers/media/platform/msm/ais/isp/msm_isp47.c +++ b/drivers/media/platform/msm/ais/isp/msm_isp47.c @@ -662,37 +662,6 @@ void msm_vfe47_process_epoch_irq(struct vfe_device *vfe_dev, } } -static void msm_isp47_process_sof_irq(struct vfe_device *vfe_dev, - uint32_t irq_status0, uint32_t irq_status1) -{ - int i, axi_src_idx[4], src_count = 0; - struct msm_vfe_axi_stream *pstream_info; - struct msm_vfe_axi_shared_data *axi_data = &vfe_dev->axi_data; - - if (irq_status0 & BIT(0)) - axi_src_idx[src_count++] = CAMIF_RAW; - if (irq_status1 & BIT(29)) - axi_src_idx[src_count++] = RDI_INTF_0; - if (irq_status1 & BIT(30)) - axi_src_idx[src_count++] = RDI_INTF_1; - if (irq_status1 & BIT(31)) - axi_src_idx[src_count++] = RDI_INTF_2; - - if (src_count == 0) - return; - - for (i = 0; i < src_count; i++) { - pstream_info = &axi_data->stream_info[axi_src_idx[i]]; - - if (pstream_info->interlaced) { - vfe_dev->wakeupflag = true; - wake_up_interruptible(&vfe_dev->field_waitqueue); - /* currently we support only 1 interlaced instance */ - break; - } - } -} - void msm_isp47_process_eof_irq(struct vfe_device *vfe_dev, uint32_t irq_status0) { @@ -2749,7 +2718,6 @@ struct msm_vfe_hardware_info vfe47_hw_info = { .process_stats_irq = msm_isp_process_stats_irq, .process_epoch_irq = msm_vfe47_process_epoch_irq, .config_irq = msm_vfe47_config_irq, - .process_sof_irq = msm_isp47_process_sof_irq, .process_eof_irq = msm_isp47_process_eof_irq, }, .axi_ops = { diff --git a/drivers/media/platform/msm/ais/isp/msm_isp_axi_util.c b/drivers/media/platform/msm/ais/isp/msm_isp_axi_util.c index 9c06ee3b2687..a85ee30769c4 100644 --- a/drivers/media/platform/msm/ais/isp/msm_isp_axi_util.c +++ b/drivers/media/platform/msm/ais/isp/msm_isp_axi_util.c @@ -2042,12 +2042,6 @@ static int msm_isp_process_done_buf(struct vfe_device *vfe_dev, buf_event.u.buf_done.buf_idx = buf->buf_idx; buf_event.u.buf_done.output_format = stream_info->runtime_output_format; - - if (stream_info->interlaced) - buf_event.u.buf_done.field_type = stream_info->field_type; - else - buf_event.u.buf_done.field_type = 0; - if (vfe_dev->fetch_engine_info.is_busy && SRC_TO_INTF(stream_info->stream_src) == VFE_PIX_0) { vfe_dev->fetch_engine_info.is_busy = 0; @@ -3138,7 +3132,6 @@ static int msm_isp_stop_axi_stream(struct vfe_device *vfe_dev, } } - stream_info->interlaced = false; vfe_dev->reg_update_requested &= ~(BIT(SRC_TO_INTF(stream_info->stream_src))); } @@ -3551,18 +3544,13 @@ int msm_isp_axi_output_cfg(struct vfe_device *vfe_dev, void *arg) INIT_LIST_HEAD(&pstream_info->request_q); pstream_info->frame_based = - pCmd->output_path_cfg[axi_src_idx].frame_based & BIT(0); - pstream_info->interlaced = - (pCmd->output_path_cfg[axi_src_idx].frame_based - & BIT(INTERLACE_OFFSET)) ? true : false; + pCmd->output_path_cfg[axi_src_idx].frame_based; /* send buffers to user through vfe dev node */ pstream_info->buf_divert = 1; pstream_info->output_format = pCmd->output_path_cfg[axi_src_idx].format; - pstream_info->field_index = 0; - msm_isp_axi_get_num_planes( pCmd->output_path_cfg[axi_src_idx].format, pstream_info); diff --git a/drivers/media/platform/msm/ais/isp/msm_isp_util.c b/drivers/media/platform/msm/ais/isp/msm_isp_util.c index 2401ff645057..9e5317eb2920 100644 --- a/drivers/media/platform/msm/ais/isp/msm_isp_util.c +++ b/drivers/media/platform/msm/ais/isp/msm_isp_util.c @@ -14,8 +14,6 @@ #include <linux/io.h> #include <media/v4l2-subdev.h> #include <linux/ratelimit.h> -#include <linux/kthread.h> -#include <linux/sched.h> #include "msm.h" #include "msm_isp_util.h" @@ -25,7 +23,6 @@ #include "cam_smmu_api.h" #define CREATE_TRACE_POINTS #include "trace/events/msm_cam.h" -#include "media/msm_ba.h" #define MAX_ISP_V4l2_EVENTS 100 #define MAX_ISP_REG_LIST 100 @@ -1977,166 +1974,6 @@ void msm_isp_reset_burst_count_and_frame_drop( msm_isp_reset_framedrop(vfe_dev, stream_info); } -static void msm_isp_field_type_read_thread(void *data) -{ - int ret = 0; - uint8_t i, j = 0; - bool even_field = 0; - uint64_t timestamp_us[4]; - struct msm_isp_timestamp ts; - struct msm_vfe_axi_stream *stream_info = NULL; - struct vfe_device *vfe_dev = (struct vfe_device *)data; - - pr_debug("Enter field_type_read_thread\n"); - - vfe_dev->ba_inst_hdl = msm_ba_open(NULL); - if (vfe_dev->ba_inst_hdl == NULL) { - pr_err("%s: ba open failed\n", __func__); - return; - } - - while (!kthread_should_stop()) { - ret = 0; - wait_event_interruptible(vfe_dev->field_waitqueue, - vfe_dev->wakeupflag == true); - if (kthread_should_stop()) { - pr_debug("%s: field thread has stopped\n", __func__); - goto bs_close; - } - - for (i = 0; i < VFE_AXI_SRC_MAX; i++) { - if (vfe_dev->axi_data.stream_info[i].interlaced) - break; - } - if (i == VFE_AXI_SRC_MAX) { - vfe_dev->wakeupflag = false; - continue; - } - - stream_info = &vfe_dev->axi_data.stream_info[i]; - j = stream_info->field_index; - - /* Detect field status from bridge chip */ - ret = msm_ba_private_ioctl(vfe_dev->ba_inst_hdl, - VIDIOC_CVBS_G_FIELD_STATUS, &even_field); - if (ret) { - pr_err("%s: get field status failed: %d\n", - __func__, ret); - } else { - msm_isp_get_timestamp(&ts, vfe_dev); - stream_info->field_info[j%2].even_field = even_field; - stream_info->field_info[j%2].field_ts.tv_sec = - ts.buf_time.tv_sec; - stream_info->field_info[j%2].field_ts.tv_usec = - ts.buf_time.tv_usec; - } - - stream_info->field_index++; - - /* once 2 fields info getting done, do the verification */ - if (stream_info->field_index%2 == 0) { - timestamp_us[0] = - stream_info->field_info[0].sof_ts.tv_sec - * 1000 * 1000 - + stream_info->field_info[0].sof_ts.tv_usec; - timestamp_us[1] = - stream_info->field_info[0].field_ts.tv_sec - * 1000 * 1000 - + stream_info->field_info[0].field_ts.tv_usec; - timestamp_us[2] = - stream_info->field_info[1].sof_ts.tv_sec - * 1000 * 1000 - + stream_info->field_info[1].sof_ts.tv_usec; - timestamp_us[3] = - stream_info->field_info[1].field_ts.tv_sec - * 1000 * 1000 - + stream_info->field_info[1].field_ts.tv_usec; - - /* - * Expected timing: - * field 0 SOF -> field 0 type read -> - * field 1 SOF -> field 1 type read - */ - if ((timestamp_us[0] < timestamp_us[1]) && - (timestamp_us[2] < timestamp_us[3]) && - (timestamp_us[1] < timestamp_us[2]) && - (stream_info->field_info[0].even_field != - stream_info->field_info[1].even_field)) { - /* - * Field type: - * 0 - unknown - * 1 - odd first - * 2 - even first - */ - stream_info->field_type = - stream_info->field_info[0].even_field ? - 2 : 1; - } else { - stream_info->field_type = 0; - pr_err("Field: %llu %llu %llu %llu %d %d\n", - timestamp_us[0], timestamp_us[1], - timestamp_us[2], timestamp_us[3], - stream_info->field_info[0].even_field, - stream_info->field_info[1].even_field); - } - } - - vfe_dev->wakeupflag = false; - } - -bs_close: - ret = msm_ba_close(vfe_dev->ba_inst_hdl); - if (ret) - pr_err("%s: msm ba close failed\n", __func__); - vfe_dev->ba_inst_hdl = NULL; -} - -static int msm_isp_init_field_type_kthread(struct vfe_device *vfe_dev) -{ - init_waitqueue_head(&vfe_dev->field_waitqueue); - - ISP_DBG("%s: Queue initialized\n", __func__); - vfe_dev->field_thread_id = kthread_run( - (void *)msm_isp_field_type_read_thread, - (void *)vfe_dev, "field_type_kthread"); - if (IS_ERR(vfe_dev->field_thread_id)) { - pr_err("%s: Unable to run the thread\n", __func__); - return -ENOMEM; - } - - return 0; -} - -static void msm_isp_field_timestamp(struct vfe_device *vfe_dev, - uint32_t irq_status0, uint32_t irq_status1, - struct timeval *timestamp) -{ - uint8_t i, j = 0; - struct msm_vfe_axi_stream *stream_info = NULL; - - for (i = 0; i < VFE_AXI_SRC_MAX; i++) { - if (vfe_dev->axi_data.stream_info[i].interlaced) - break; - } - - if (i == VFE_AXI_SRC_MAX) - return; - - stream_info = &vfe_dev->axi_data.stream_info[i]; - - /* SOF timestamp */ - if (((i == CAMIF_RAW) && (irq_status0 & BIT(0))) - || ((i == RDI_INTF_0) && (irq_status1 & BIT(29))) - || ((i == RDI_INTF_1) && (irq_status1 & BIT(30))) - || ((i == RDI_INTF_2) && (irq_status1 & BIT(31)))) { - j = stream_info->field_index; - stream_info->field_info[j%2].sof_ts.tv_sec = - timestamp->tv_sec; - stream_info->field_info[j%2].sof_ts.tv_usec = - timestamp->tv_usec; - } -} - static void msm_isp_enqueue_tasklet_cmd(struct vfe_device *vfe_dev, uint32_t irq_status0, uint32_t irq_status1, uint32_t ping_pong_status) @@ -2162,10 +1999,6 @@ static void msm_isp_enqueue_tasklet_cmd(struct vfe_device *vfe_dev, MSM_VFE_TASKLETQ_SIZE; list_add_tail(&queue_cmd->list, &vfe_dev->tasklet_q); spin_unlock_irqrestore(&vfe_dev->tasklet_lock, flags); - - msm_isp_field_timestamp(vfe_dev, irq_status0, irq_status1, - &queue_cmd->ts.buf_time); - tasklet_schedule(&vfe_dev->vfe_tasklet); } @@ -2288,7 +2121,6 @@ void msm_isp_do_tasklet(unsigned long data) spin_unlock_irqrestore(&vfe_dev->tasklet_lock, flags); ISP_DBG("%s: vfe_id %d status0: 0x%x status1: 0x%x\n", __func__, vfe_dev->pdev->id, irq_status0, irq_status1); - if (vfe_dev->is_split) { spin_lock(&dump_tasklet_lock); tasklet_data.arr[tasklet_data.first]. @@ -2307,8 +2139,6 @@ void msm_isp_do_tasklet(unsigned long data) (tasklet_data.first + 1) % MAX_ISP_PING_PONG_DUMP_SIZE; spin_unlock(&dump_tasklet_lock); } - irq_ops->process_sof_irq(vfe_dev, - irq_status0, irq_status1); irq_ops->process_reset_irq(vfe_dev, irq_status0, irq_status1); irq_ops->process_halt_irq(vfe_dev, @@ -2461,17 +2291,8 @@ int msm_isp_open_node(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) cam_smmu_reg_client_page_fault_handler( vfe_dev->buf_mgr->iommu_hdl, msm_vfe_iommu_fault_handler, vfe_dev); - - /* to detect interlaced frame type through ba driver */ - rc = msm_isp_init_field_type_kthread(vfe_dev); - if (rc) { - pr_err("%s: init field thread failed\n", __func__); - return rc; - } - mutex_unlock(&vfe_dev->core_mutex); mutex_unlock(&vfe_dev->realtime_mutex); - return 0; } @@ -2540,9 +2361,6 @@ int msm_isp_close_node(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) } vfe_dev->is_split = 0; - vfe_dev->wakeupflag = true; - kthread_stop(vfe_dev->field_thread_id); - mutex_unlock(&vfe_dev->core_mutex); mutex_unlock(&vfe_dev->realtime_mutex); return 0; diff --git a/drivers/media/platform/msm/camera_v2/isp/msm_buf_mgr.h b/drivers/media/platform/msm/camera_v2/isp/msm_buf_mgr.h index 21fab0590b55..34cac9daea89 100644 --- a/drivers/media/platform/msm/camera_v2/isp/msm_buf_mgr.h +++ b/drivers/media/platform/msm/camera_v2/isp/msm_buf_mgr.h @@ -1,4 +1,4 @@ -/* Copyright (c) 2013-2016, The Linux Foundation. All rights reserved. +/* Copyright (c) 2013-2017, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -98,6 +98,8 @@ struct msm_isp_buffer { struct timeval *tv; /* Indicates whether buffer is used as ping ot pong buffer */ uint32_t pingpong_bit; + /* Indicates buffer is reconfig due to drop frame */ + uint32_t is_drop_reconfig; /*Native buffer*/ struct list_head list; diff --git a/drivers/media/platform/msm/camera_v2/isp/msm_isp.c b/drivers/media/platform/msm/camera_v2/isp/msm_isp.c index 22eb86f4f875..23e27e1179d1 100644 --- a/drivers/media/platform/msm/camera_v2/isp/msm_isp.c +++ b/drivers/media/platform/msm/camera_v2/isp/msm_isp.c @@ -453,11 +453,69 @@ static long msm_isp_v4l2_fops_ioctl(struct file *file, unsigned int cmd, return video_usercopy(file, cmd, arg, msm_isp_subdev_do_ioctl); } +static void isp_vma_open(struct vm_area_struct *vma) +{ + pr_debug("%s: open called\n", __func__); +} + +static void isp_vma_close(struct vm_area_struct *vma) +{ + pr_debug("%s: close called\n", __func__); +} + +static int isp_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +{ + struct page *page; + struct vfe_device *vfe_dev = vma->vm_private_data; + struct isp_proc *isp_page = NULL; + + isp_page = vfe_dev->isp_page; + + pr_debug("%s: vfeid:%d u_virt_addr:0x%lx k_virt_addr:%pK\n", + __func__, vfe_dev->pdev->id, vma->vm_start, + (void *)isp_page); + if (isp_page != NULL) { + page = virt_to_page(isp_page); + get_page(page); + vmf->page = page; + isp_page->kernel_sofid = + vfe_dev->axi_data.src_info[VFE_PIX_0].frame_id; + isp_page->vfeid = vfe_dev->pdev->id; + } + return 0; +} + +static const struct vm_operations_struct isp_vm_ops = { + .open = isp_vma_open, + .close = isp_vma_close, + .fault = isp_vma_fault, +}; + +static int msm_isp_v4l2_fops_mmap(struct file *filep, + struct vm_area_struct *vma) +{ + int ret = -EINVAL; + struct video_device *vdev = video_devdata(filep); + struct v4l2_subdev *sd = vdev_to_v4l2_subdev(vdev); + struct vfe_device *vfe_dev = v4l2_get_subdevdata(sd); + + vma->vm_ops = &isp_vm_ops; + vma->vm_flags |= + (unsigned long)(VM_DONTEXPAND | VM_DONTDUMP); + vma->vm_private_data = vfe_dev; + isp_vma_open(vma); + ret = 0; + pr_debug("%s: isp mmap is called vm_start: 0x%lx\n", + __func__, vma->vm_start); + return ret; +} + static struct v4l2_file_operations msm_isp_v4l2_fops = { #ifdef CONFIG_COMPAT .compat_ioctl32 = msm_isp_v4l2_fops_ioctl, #endif - .unlocked_ioctl = msm_isp_v4l2_fops_ioctl + .unlocked_ioctl = msm_isp_v4l2_fops_ioctl, + .mmap = msm_isp_v4l2_fops_mmap }; static int vfe_set_common_data(struct platform_device *pdev) @@ -671,6 +729,8 @@ int vfe_hw_probe(struct platform_device *pdev) msm_isp_v4l2_fops.compat_ioctl32 = msm_isp_v4l2_fops_ioctl; #endif + msm_isp_v4l2_fops.mmap = msm_isp_v4l2_fops_mmap; + vfe_dev->subdev.sd.devnode->fops = &msm_isp_v4l2_fops; vfe_dev->buf_mgr = &vfe_buf_mgr; @@ -687,6 +747,14 @@ int vfe_hw_probe(struct platform_device *pdev) msm_isp_enable_debugfs(vfe_dev, msm_isp_bw_request_history); vfe_dev->buf_mgr->init_done = 1; vfe_dev->vfe_open_cnt = 0; + /*Allocate a page in kernel and map it to camera user process*/ + vfe_dev->isp_page = (struct isp_proc *)get_zeroed_page(GFP_KERNEL); + if (vfe_dev->isp_page == NULL) { + pr_err("%s: no enough memory\n", __func__); + rc = -ENOMEM; + goto probe_fail3; + } + vfe_dev->isp_page->vfeid = vfe_dev->pdev->id; return rc; probe_fail3: diff --git a/drivers/media/platform/msm/camera_v2/isp/msm_isp.h b/drivers/media/platform/msm/camera_v2/isp/msm_isp.h index b2d152bf4ef0..d336e1ef1bd7 100644 --- a/drivers/media/platform/msm/camera_v2/isp/msm_isp.h +++ b/drivers/media/platform/msm/camera_v2/isp/msm_isp.h @@ -759,6 +759,11 @@ struct msm_vfe_common_subdev { struct msm_vfe_common_dev_data *common_data; }; +struct isp_proc { + uint32_t kernel_sofid; + uint32_t vfeid; +}; + struct vfe_device { /* Driver private data */ struct platform_device *pdev; @@ -842,6 +847,7 @@ struct vfe_device { uint32_t recovery_irq1_mask; /* total bandwidth per vfe */ uint64_t total_bandwidth; + struct isp_proc *isp_page; }; struct vfe_parent_device { diff --git a/drivers/media/platform/msm/camera_v2/isp/msm_isp47.c b/drivers/media/platform/msm/camera_v2/isp/msm_isp47.c index 70950a88fc66..812027f3e539 100644 --- a/drivers/media/platform/msm/camera_v2/isp/msm_isp47.c +++ b/drivers/media/platform/msm/camera_v2/isp/msm_isp47.c @@ -788,7 +788,7 @@ long msm_vfe47_reset_hardware(struct vfe_device *vfe_dev, msm_camera_io_w(0xFFFFFEFF, vfe_dev->vfe_base + 0x68); msm_camera_io_w(0x1, vfe_dev->vfe_base + 0x58); vfe_dev->hw_info->vfe_ops.axi_ops. - reload_wm(vfe_dev, vfe_dev->vfe_base, 0x0031FFFF); + reload_wm(vfe_dev, vfe_dev->vfe_base, 0x0011FFFF); } if (blocking_call) { diff --git a/drivers/media/platform/msm/camera_v2/isp/msm_isp_axi_util.c b/drivers/media/platform/msm/camera_v2/isp/msm_isp_axi_util.c index 5bcb3034b82a..15f8061b9919 100644 --- a/drivers/media/platform/msm/camera_v2/isp/msm_isp_axi_util.c +++ b/drivers/media/platform/msm/camera_v2/isp/msm_isp_axi_util.c @@ -719,13 +719,7 @@ void msm_isp_check_for_output_error(struct vfe_device *vfe_dev, sof_info->stream_get_buf_fail_mask = 0; axi_data = &vfe_dev->axi_data; - /* report that registers are not updated and return empty buffer for - * controllable outputs - */ - if (!vfe_dev->reg_updated) { - sof_info->regs_not_updated = - vfe_dev->reg_update_requested; - } + for (i = 0; i < RDI_INTF_0; i++) { stream_info = msm_isp_get_stream_common_data(vfe_dev, i); @@ -747,6 +741,12 @@ void msm_isp_check_for_output_error(struct vfe_device *vfe_dev, if (stream_info->controllable_output && !vfe_dev->reg_updated) { if (stream_info->undelivered_request_cnt) { + /*report that registers are not updated + * and return empty buffer for controllable + * outputs + */ + sof_info->regs_not_updated = + !vfe_dev->reg_updated; pr_err("Drop frame no reg update\n"); if (msm_isp_drop_frame(vfe_dev, stream_info, ts, sof_info)) { @@ -933,6 +933,8 @@ void msm_isp_increment_frame_id(struct vfe_device *vfe_dev, } if (frame_src == VFE_PIX_0) { + vfe_dev->isp_page->kernel_sofid = + vfe_dev->axi_data.src_info[frame_src].frame_id; if (!src_info->frame_id && !src_info->reg_update_frame_id && ((src_info->frame_id - @@ -1646,23 +1648,30 @@ static void msm_isp_reload_ping_pong_offset( } static int msm_isp_update_deliver_count(struct vfe_device *vfe_dev, - struct msm_vfe_axi_stream *stream_info, uint32_t pingpong_bit) + struct msm_vfe_axi_stream *stream_info, uint32_t pingpong_bit, + struct msm_isp_buffer *done_buf) { int rc = 0; if (!stream_info->controllable_output) goto done; - if (!stream_info->undelivered_request_cnt) { + if (!stream_info->undelivered_request_cnt || + (done_buf == NULL)) { pr_err_ratelimited("%s:%d error undelivered_request_cnt 0\n", __func__, __LINE__); rc = -EINVAL; goto done; } else { + if ((done_buf->is_drop_reconfig == 1) && + (stream_info->sw_ping_pong_bit == -1)) { + goto done; + } /*After wm reload, we get bufdone for ping buffer*/ if (stream_info->sw_ping_pong_bit == -1) stream_info->sw_ping_pong_bit = 0; - stream_info->undelivered_request_cnt--; + if (done_buf->is_drop_reconfig != 1) + stream_info->undelivered_request_cnt--; if (pingpong_bit != stream_info->sw_ping_pong_bit) { pr_err("%s:%d ping pong bit actual %d sw %d\n", __func__, __LINE__, pingpong_bit, @@ -1908,7 +1917,8 @@ int msm_isp_cfg_offline_ping_pong_address(struct vfe_device *vfe_dev, } static int msm_isp_cfg_ping_pong_address( - struct msm_vfe_axi_stream *stream_info, uint32_t pingpong_status) + struct msm_vfe_axi_stream *stream_info, uint32_t pingpong_status, + struct msm_isp_buffer *buf) { int i; int j; @@ -1917,7 +1927,6 @@ static int msm_isp_cfg_ping_pong_address( uint32_t buffer_size_byte = 0; int32_t word_per_line = 0; dma_addr_t paddr; - struct msm_isp_buffer *buf = NULL; /* Isolate pingpong_bit from pingpong_status */ @@ -1928,10 +1937,11 @@ static int msm_isp_cfg_ping_pong_address( if (stream_info->buf[!pingpong_bit]) { pr_err("stream %x buffer already set for pingpong %d\n", stream_info->stream_src, !pingpong_bit); - return 0; + return 1; } - buf = msm_isp_get_stream_buffer(vfe_dev, stream_info); + if (buf == NULL) + buf = msm_isp_get_stream_buffer(vfe_dev, stream_info); if (!buf) { msm_isp_cfg_stream_scratch(stream_info, pingpong_status); @@ -2165,6 +2175,7 @@ int msm_isp_drop_frame(struct vfe_device *vfe_dev, struct msm_isp_bufq *bufq = NULL; uint32_t pingpong_bit; int vfe_idx; + int rc = -1; if (!vfe_dev || !stream_info || !ts || !sof_info) { pr_err("%s %d vfe_dev %pK stream_info %pK ts %pK op_info %pK\n", @@ -2181,17 +2192,42 @@ int msm_isp_drop_frame(struct vfe_device *vfe_dev, pingpong_bit = (~(pingpong_status >> stream_info->wm[vfe_idx][0]) & 0x1); done_buf = stream_info->buf[pingpong_bit]; - if (done_buf) { - bufq = vfe_dev->buf_mgr->ops->get_bufq(vfe_dev->buf_mgr, - done_buf->bufq_handle); - if (!bufq) { - spin_unlock_irqrestore(&stream_info->lock, flags); - pr_err("%s: Invalid bufq buf_handle %x\n", - __func__, done_buf->bufq_handle); - return -EINVAL; + if (done_buf && + (stream_info->composite_irq[MSM_ISP_COMP_IRQ_EPOCH] == 0)) { + if ((stream_info->sw_ping_pong_bit != -1) && + !vfe_dev->reg_updated) { + rc = msm_isp_cfg_ping_pong_address( + stream_info, ~pingpong_status, done_buf); + if (rc < 0) { + ISP_DBG("%s: Error configuring ping_pong\n", + __func__); + bufq = vfe_dev->buf_mgr->ops->get_bufq( + vfe_dev->buf_mgr, + done_buf->bufq_handle); + if (!bufq) { + spin_unlock_irqrestore( + &stream_info->lock, + flags); + pr_err("%s: Invalid bufq buf_handle %x\n", + __func__, + done_buf->bufq_handle); + return -EINVAL; + } + sof_info->reg_update_fail_mask_ext |= + (bufq->bufq_handle & 0xFF); + } + } + /*Avoid Drop Frame and re-issue pingpong cfg*/ + /*this notify is per ping and pong buffer*/ + done_buf->is_drop_reconfig = 1; + stream_info->current_framedrop_period = 1; + /*Avoid Multiple request frames for single SOF*/ + vfe_dev->axi_data.src_info[VFE_PIX_0].accept_frame = false; + + if (stream_info->current_framedrop_period != + stream_info->requested_framedrop_period) { + msm_isp_cfg_framedrop_reg(stream_info); } - sof_info->reg_update_fail_mask_ext |= - (bufq->bufq_handle & 0xFF); } spin_unlock_irqrestore(&stream_info->lock, flags); @@ -2201,6 +2237,8 @@ int msm_isp_drop_frame(struct vfe_device *vfe_dev, /* no buf done come */ msm_isp_process_axi_irq_stream(vfe_dev, stream_info, pingpong_status, ts); + if (done_buf) + done_buf->is_drop_reconfig = 0; } return 0; } @@ -2505,7 +2543,7 @@ static int msm_isp_init_stream_ping_pong_reg( /* Set address for both PING & PO NG register */ rc = msm_isp_cfg_ping_pong_address( - stream_info, VFE_PING_FLAG); + stream_info, VFE_PING_FLAG, NULL); /* No buffer available on start is not error */ if (rc == -ENOMEM && stream_info->stream_type != BURST_STREAM) return 0; @@ -2517,7 +2555,7 @@ static int msm_isp_init_stream_ping_pong_reg( if (stream_info->stream_type != BURST_STREAM || stream_info->runtime_num_burst_capture > 1) { rc = msm_isp_cfg_ping_pong_address( - stream_info, VFE_PONG_FLAG); + stream_info, VFE_PONG_FLAG, NULL); /* No buffer available on start is not error */ if (rc == -ENOMEM) return 0; @@ -3516,7 +3554,7 @@ static int msm_isp_request_frame(struct vfe_device *vfe_dev, if (stream_info->undelivered_request_cnt == 1) { rc = msm_isp_cfg_ping_pong_address(stream_info, - VFE_PING_FLAG); + VFE_PING_FLAG, NULL); if (rc) { spin_unlock_irqrestore(&stream_info->lock, flags); stream_info->undelivered_request_cnt--; @@ -3549,10 +3587,10 @@ static int msm_isp_request_frame(struct vfe_device *vfe_dev, * now. */ rc = msm_isp_cfg_ping_pong_address(stream_info, - VFE_PONG_FLAG); + VFE_PONG_FLAG, NULL); } else { rc = msm_isp_cfg_ping_pong_address( - stream_info, pingpong_status); + stream_info, pingpong_status, NULL); } if (rc) { stream_info->undelivered_request_cnt--; @@ -3574,6 +3612,9 @@ static int msm_isp_request_frame(struct vfe_device *vfe_dev, if (0 == rc) msm_isp_reset_framedrop(vfe_dev, stream_info); + /*Avoid Multiple request frames for single SOF*/ + vfe_dev->axi_data.src_info[frame_src].accept_frame = false; + spin_unlock_irqrestore(&stream_info->lock, flags); return rc; @@ -4057,6 +4098,10 @@ void msm_isp_process_axi_irq_stream(struct vfe_device *vfe_dev, done_buf = stream_info->buf[pingpong_bit]; if (vfe_dev->buf_mgr->frameId_mismatch_recovery == 1) { + if (done_buf) { + if (done_buf->is_drop_reconfig == 1) + done_buf->is_drop_reconfig = 0; + } pr_err_ratelimited("%s: Mismatch Recovery in progress, drop frame!\n", __func__); spin_unlock_irqrestore(&stream_info->lock, flags); @@ -4076,14 +4121,26 @@ void msm_isp_process_axi_irq_stream(struct vfe_device *vfe_dev, stream_info->frame_id++; stream_info->buf[pingpong_bit] = NULL; + if (stream_info->controllable_output && + (done_buf != NULL) && + (stream_info->sw_ping_pong_bit == -1) && + (done_buf->is_drop_reconfig == 1)) { + /*When wm reloaded and corresponding reg_update fail + * then buffer is reconfig as PING buffer. so, avoid + * NULL assignment to PING buffer and eventually + * next AXI_DONE or buf_done can be successful + */ + stream_info->buf[pingpong_bit] = done_buf; + } + if (stream_info->stream_type == CONTINUOUS_STREAM || stream_info->runtime_num_burst_capture > 1) { rc = msm_isp_cfg_ping_pong_address( - stream_info, pingpong_status); + stream_info, pingpong_status, NULL); if (rc < 0) ISP_DBG("%s: Error configuring ping_pong\n", __func__); - } else if (done_buf) { + } else if (done_buf && (done_buf->is_drop_reconfig != 1)) { msm_isp_cfg_stream_scratch(stream_info, pingpong_status); } @@ -4107,8 +4164,10 @@ void msm_isp_process_axi_irq_stream(struct vfe_device *vfe_dev, } rc = msm_isp_update_deliver_count(vfe_dev, stream_info, - pingpong_bit); + pingpong_bit, done_buf); if (rc) { + if (done_buf->is_drop_reconfig == 1) + done_buf->is_drop_reconfig = 0; spin_unlock_irqrestore(&stream_info->lock, flags); pr_err_ratelimited("%s:VFE%d get done buf fail\n", __func__, vfe_dev->pdev->id); @@ -4117,17 +4176,28 @@ void msm_isp_process_axi_irq_stream(struct vfe_device *vfe_dev, return; } - spin_unlock_irqrestore(&stream_info->lock, flags); if ((done_buf->frame_id != frame_id) && vfe_dev->axi_data.enable_frameid_recovery) { + if (done_buf->is_drop_reconfig == 1) + done_buf->is_drop_reconfig = 0; + spin_unlock_irqrestore(&stream_info->lock, flags); msm_isp_handle_done_buf_frame_id_mismatch(vfe_dev, stream_info, done_buf, time_stamp, frame_id); return; } - msm_isp_process_done_buf(vfe_dev, stream_info, + if (done_buf->is_drop_reconfig == 1) { + /*When ping/pong buf is already reconfigured + * then dont issue buf-done for current buffer + */ + done_buf->is_drop_reconfig = 0; + spin_unlock_irqrestore(&stream_info->lock, flags); + } else { + spin_unlock_irqrestore(&stream_info->lock, flags); + msm_isp_process_done_buf(vfe_dev, stream_info, done_buf, time_stamp, frame_id); + } } void msm_isp_process_axi_irq(struct vfe_device *vfe_dev, diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index b0e2e292e3cb..bb6518159d12 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -510,7 +510,7 @@ sg_read(struct file *filp, char __user *buf, size_t count, loff_t * ppos) old_hdr->result = EIO; break; case DID_ERROR: - old_hdr->result = (srp->sense_b[0] == 0 && + old_hdr->result = (srp->sense_b[0] == 0 && hp->masked_status == GOOD) ? 0 : EIO; break; default: @@ -898,8 +898,10 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) return -ENXIO; if (!access_ok(VERIFY_WRITE, p, SZ_SG_IO_HDR)) return -EFAULT; + mutex_lock(&sfp->parentdp->open_rel_lock); result = sg_new_write(sfp, filp, p, SZ_SG_IO_HDR, 1, read_only, 1, &srp); + mutex_unlock(&sfp->parentdp->open_rel_lock); if (result < 0) return result; result = wait_event_interruptible(sfp->read_wait, @@ -939,8 +941,10 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) sfp->low_dma = 1; if ((0 == sfp->low_dma) && !sfp->res_in_use) { val = (int) sfp->reserve.bufflen; + mutex_lock(&sfp->parentdp->open_rel_lock); sg_remove_scat(sfp, &sfp->reserve); sg_build_reserve(sfp, val); + mutex_unlock(&sfp->parentdp->open_rel_lock); } } else { if (atomic_read(&sdp->detaching)) @@ -1009,8 +1013,8 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) result = get_user(val, ip); if (result) return result; - if (val < 0) - return -EINVAL; + if (val < 0) + return -EINVAL; val = min_t(int, val, max_sectors_bytes(sdp->device->request_queue)); mutex_lock(&sfp->f_mutex); @@ -1020,9 +1024,10 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) mutex_unlock(&sfp->f_mutex); return -EBUSY; } - + mutex_lock(&sfp->parentdp->open_rel_lock); sg_remove_scat(sfp, &sfp->reserve); sg_build_reserve(sfp, val); + mutex_unlock(&sfp->parentdp->open_rel_lock); } mutex_unlock(&sfp->f_mutex); return 0; @@ -1149,14 +1154,14 @@ static long sg_compat_ioctl(struct file *filp, unsigned int cmd_in, unsigned lon return -ENXIO; sdev = sdp->device; - if (sdev->host->hostt->compat_ioctl) { + if (sdev->host->hostt->compat_ioctl) { int ret; ret = sdev->host->hostt->compat_ioctl(sdev, cmd_in, (void __user *)arg); return ret; } - + return -ENOIOCTLCMD; } #endif @@ -1646,7 +1651,7 @@ init_sg(void) else def_reserved_size = sg_big_buff; - rc = register_chrdev_region(MKDEV(SCSI_GENERIC_MAJOR, 0), + rc = register_chrdev_region(MKDEV(SCSI_GENERIC_MAJOR, 0), SG_MAX_DEVS, "sg"); if (rc) return rc; @@ -2304,7 +2309,7 @@ static const struct file_operations adio_fops = { }; static int sg_proc_single_open_dressz(struct inode *inode, struct file *file); -static ssize_t sg_proc_write_dressz(struct file *filp, +static ssize_t sg_proc_write_dressz(struct file *filp, const char __user *buffer, size_t count, loff_t *off); static const struct file_operations dressz_fops = { .owner = THIS_MODULE, @@ -2444,7 +2449,7 @@ static int sg_proc_single_open_adio(struct inode *inode, struct file *file) return single_open(file, sg_proc_seq_show_int, &sg_allow_dio); } -static ssize_t +static ssize_t sg_proc_write_adio(struct file *filp, const char __user *buffer, size_t count, loff_t *off) { @@ -2465,7 +2470,7 @@ static int sg_proc_single_open_dressz(struct inode *inode, struct file *file) return single_open(file, sg_proc_seq_show_int, &sg_big_buff); } -static ssize_t +static ssize_t sg_proc_write_dressz(struct file *filp, const char __user *buffer, size_t count, loff_t *off) { @@ -2640,6 +2645,9 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) seq_puts(s, srp->done ? ((1 == srp->done) ? "rcv:" : "fin:") : "act:"); + seq_printf(s, srp->done ? + ((1 == srp->done) ? "rcv:" : "fin:") + : "act:"); seq_printf(s, " id=%d blen=%d", srp->header.pack_id, blen); if (srp->done) diff --git a/drivers/soc/qcom/qdsp6v2/msm_audio_ion_vm.c b/drivers/soc/qcom/qdsp6v2/msm_audio_ion_vm.c index a3aa8823d8ce..afc40461e8e8 100644 --- a/drivers/soc/qcom/qdsp6v2/msm_audio_ion_vm.c +++ b/drivers/soc/qcom/qdsp6v2/msm_audio_ion_vm.c @@ -22,7 +22,6 @@ #include <linux/msm_audio_ion.h> #include <linux/habmm.h> #include "../../../staging/android/ion/ion_priv.h" -#include "../../../staging/android/ion/ion_hvenv_driver.h" #define MSM_AUDIO_ION_PROBED (1 << 0) @@ -628,7 +627,7 @@ struct ion_client *msm_audio_ion_client_create(const char *name) { struct ion_client *pclient = NULL; - pclient = hvenv_ion_client_create(name); + pclient = msm_ion_client_create(name); return pclient; } diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index c08a524f3dab..5644051b4010 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -4294,6 +4294,8 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, enum usb_device_speed oldspeed = udev->speed; const char *speed; int devnum = udev->devnum; + char *error_event[] = { + "USB_DEVICE_ERROR=Device_No_Response", NULL }; /* root hub ports have a slightly longer reset period * (from USB 2.0 spec, section 7.1.7.5) @@ -4467,6 +4469,8 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, if (r != -ENODEV) dev_err(&udev->dev, "device descriptor read/64, error %d\n", r); + kobject_uevent_env(&udev->parent->dev.kobj, + KOBJ_CHANGE, error_event); retval = -EMSGSIZE; continue; } @@ -4519,6 +4523,8 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, dev_err(&udev->dev, "device descriptor read/8, error %d\n", retval); + kobject_uevent_env(&udev->parent->dev.kobj, + KOBJ_CHANGE, error_event); if (retval >= 0) retval = -EMSGSIZE; } else { diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index c244d908fa4f..24ecbc469eb6 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -282,7 +282,7 @@ out: return ret; } -static void dwc3_ep0_stall_and_restart(struct dwc3 *dwc) +void dwc3_ep0_stall_and_restart(struct dwc3 *dwc) { struct dwc3_ep *dep; diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 94709587f238..f108aecbfe52 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2882,6 +2882,15 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_DCTL, reg); dwc->test_mode = false; + /* + * From SNPS databook section 8.1.2 + * the EP0 should be in setup phase. So ensure + * that EP0 is in setup phase by issuing a stall + * and restart if EP0 is not in setup phase. + */ + if (dwc->ep0state != EP0_SETUP_PHASE) + dwc3_ep0_stall_and_restart(dwc); + dwc3_stop_active_transfers(dwc); dwc3_clear_stall_all_ep(dwc); diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h index baa83cf9638b..5b3ffbe3056d 100644 --- a/drivers/usb/dwc3/gadget.h +++ b/drivers/usb/dwc3/gadget.h @@ -98,6 +98,7 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, void dwc3_ep0_interrupt(struct dwc3 *dwc, const struct dwc3_event_depevt *event); void dwc3_ep0_out_start(struct dwc3 *dwc); +void dwc3_ep0_stall_and_restart(struct dwc3 *dwc); int __dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, diff --git a/drivers/video/msm/ba/msm_ba.c b/drivers/video/msm/ba/msm_ba.c index 0fc251f026b1..4200b8f20073 100644 --- a/drivers/video/msm/ba/msm_ba.c +++ b/drivers/video/msm/ba/msm_ba.c @@ -555,24 +555,6 @@ long msm_ba_private_ioctl(void *instance, int cmd, void *arg) } } break; - case VIDIOC_CVBS_G_FIELD_STATUS: { - dprintk(BA_DBG, "VIDIOC_CVBS_G_FIELD_STATUS"); - sd = inst->sd; - if (!sd) { - dprintk(BA_ERR, "No sd registered"); - return -EINVAL; - } - if (s_ioctl) { - rc = v4l2_subdev_call(sd, core, ioctl, cmd, s_ioctl); - if (rc) - dprintk(BA_ERR, "%s failed: %ld on cmd: 0x%x", - __func__, rc, cmd); - } else { - dprintk(BA_ERR, "%s: NULL argument provided", __func__); - rc = -EINVAL; - } - } - break; default: dprintk(BA_WARN, "Not a typewriter! Command: 0x%x", cmd); rc = -ENOTTY; @@ -830,6 +812,11 @@ void *msm_ba_open(const struct msm_ba_ext_ops *ext_ops) dev_ctxt = get_ba_dev(); + if (!dev_ctxt) { + dprintk(BA_ERR, "Failed to get ba dev"); + return NULL; + } + inst = kzalloc(sizeof(*inst), GFP_KERNEL); if (!inst) { |