[PATCH v1 2/6] media: ipu3-cio2: Use temporary storage for struct device pointer
From: Andy Shevchenko
Date: Tue Jul 13 2021 - 16:21:21 EST
Use temporary storage for struct device pointer to simplify the code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/media/pci/intel/ipu3/ipu3-cio2-main.c | 138 +++++++++---------
1 file changed, 67 insertions(+), 71 deletions(-)
diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
index 5fb379e91071..d3358817db6f 100644
--- a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
+++ b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
@@ -103,26 +103,29 @@ static inline u32 cio2_bytesperline(const unsigned int width)
static void cio2_fbpt_exit_dummy(struct cio2_device *cio2)
{
+ struct device *dev = &cio2->pci_dev->dev;
+
if (cio2->dummy_lop) {
- dma_free_coherent(&cio2->pci_dev->dev, PAGE_SIZE,
- cio2->dummy_lop, cio2->dummy_lop_bus_addr);
+ dma_free_coherent(dev, PAGE_SIZE, cio2->dummy_lop,
+ cio2->dummy_lop_bus_addr);
cio2->dummy_lop = NULL;
}
if (cio2->dummy_page) {
- dma_free_coherent(&cio2->pci_dev->dev, PAGE_SIZE,
- cio2->dummy_page, cio2->dummy_page_bus_addr);
+ dma_free_coherent(dev, PAGE_SIZE, cio2->dummy_page,
+ cio2->dummy_page_bus_addr);
cio2->dummy_page = NULL;
}
}
static int cio2_fbpt_init_dummy(struct cio2_device *cio2)
{
+ struct device *dev = &cio2->pci_dev->dev;
unsigned int i;
- cio2->dummy_page = dma_alloc_coherent(&cio2->pci_dev->dev, PAGE_SIZE,
+ cio2->dummy_page = dma_alloc_coherent(dev, PAGE_SIZE,
&cio2->dummy_page_bus_addr,
GFP_KERNEL);
- cio2->dummy_lop = dma_alloc_coherent(&cio2->pci_dev->dev, PAGE_SIZE,
+ cio2->dummy_lop = dma_alloc_coherent(dev, PAGE_SIZE,
&cio2->dummy_lop_bus_addr,
GFP_KERNEL);
if (!cio2->dummy_page || !cio2->dummy_lop) {
@@ -498,6 +501,7 @@ static int cio2_hw_init(struct cio2_device *cio2, struct cio2_queue *q)
static void cio2_hw_exit(struct cio2_device *cio2, struct cio2_queue *q)
{
+ struct device *dev = &cio2->pci_dev->dev;
void __iomem *const base = cio2->base;
unsigned int i;
u32 value;
@@ -515,8 +519,7 @@ static void cio2_hw_exit(struct cio2_device *cio2, struct cio2_queue *q)
value, value & CIO2_CDMAC0_DMA_HALTED,
4000, 2000000);
if (ret)
- dev_err(&cio2->pci_dev->dev,
- "DMA %i can not be halted\n", CIO2_DMA_CHAN);
+ dev_err(dev, "DMA %i can not be halted\n", CIO2_DMA_CHAN);
for (i = 0; i < CIO2_NUM_PORTS; i++) {
writel(readl(base + CIO2_REG_PXM_FRF_CFG(i)) |
@@ -540,8 +543,7 @@ static void cio2_buffer_done(struct cio2_device *cio2, unsigned int dma_chan)
entry = &q->fbpt[q->bufs_first * CIO2_MAX_LOPS];
if (entry->first_entry.ctrl & CIO2_FBPT_CTRL_VALID) {
- dev_warn(&cio2->pci_dev->dev,
- "no ready buffers found on DMA channel %u\n",
+ dev_warn(dev, "no ready buffers found on DMA channel %u\n",
dma_chan);
return;
}
@@ -558,8 +560,7 @@ static void cio2_buffer_done(struct cio2_device *cio2, unsigned int dma_chan)
q->bufs[q->bufs_first] = NULL;
atomic_dec(&q->bufs_queued);
- dev_dbg(&cio2->pci_dev->dev,
- "buffer %i done\n", b->vbb.vb2_buf.index);
+ dev_dbg(dev, "buffer %i done\n", b->vbb.vb2_buf.index);
b->vbb.vb2_buf.timestamp = ns;
b->vbb.field = V4L2_FIELD_NONE;
@@ -648,8 +649,8 @@ static void cio2_irq_log_port_errs(struct device *dev, u8 port, u32 status)
static void cio2_irq_handle_once(struct cio2_device *cio2, u32 int_status)
{
- void __iomem *const base = cio2->base;
struct device *dev = &cio2->pci_dev->dev;
+ void __iomem *const base = cio2->base;
if (int_status & CIO2_INT_IOOE) {
/*
@@ -792,6 +793,7 @@ static int cio2_vb2_queue_setup(struct vb2_queue *vq,
struct device *alloc_devs[])
{
struct cio2_device *cio2 = vb2_get_drv_priv(vq);
+ struct device *dev = &cio2->pci_dev->dev;
struct cio2_queue *q = vb2q_to_cio2_queue(vq);
unsigned int i;
@@ -799,7 +801,7 @@ static int cio2_vb2_queue_setup(struct vb2_queue *vq,
for (i = 0; i < *num_planes; ++i) {
sizes[i] = q->format.plane_fmt[i].sizeimage;
- alloc_devs[i] = &cio2->pci_dev->dev;
+ alloc_devs[i] = dev;
}
*num_buffers = clamp_val(*num_buffers, 1, CIO2_MAX_BUFFERS);
@@ -876,6 +878,7 @@ static int cio2_vb2_buf_init(struct vb2_buffer *vb)
static void cio2_vb2_buf_queue(struct vb2_buffer *vb)
{
struct cio2_device *cio2 = vb2_get_drv_priv(vb->vb2_queue);
+ struct device *dev = &cio2->pci_dev->dev;
struct cio2_queue *q =
container_of(vb->vb2_queue, struct cio2_queue, vbq);
struct cio2_buffer *b =
@@ -886,7 +889,7 @@ static void cio2_vb2_buf_queue(struct vb2_buffer *vb)
int bufs_queued = atomic_inc_return(&q->bufs_queued);
u32 fbpt_rp;
- dev_dbg(&cio2->pci_dev->dev, "queue buffer %d\n", vb->index);
+ dev_dbg(dev, "queue buffer %d\n", vb->index);
/*
* This code queues the buffer to the CIO2 DMA engine, which starts
@@ -937,12 +940,12 @@ static void cio2_vb2_buf_queue(struct vb2_buffer *vb)
return;
}
- dev_dbg(&cio2->pci_dev->dev, "entry %i was full!\n", next);
+ dev_dbg(dev, "entry %i was full!\n", next);
next = (next + 1) % CIO2_MAX_BUFFERS;
}
local_irq_restore(flags);
- dev_err(&cio2->pci_dev->dev, "error: all cio2 entries were full!\n");
+ dev_err(dev, "error: all cio2 entries were full!\n");
atomic_dec(&q->bufs_queued);
vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
}
@@ -951,6 +954,7 @@ static void cio2_vb2_buf_queue(struct vb2_buffer *vb)
static void cio2_vb2_buf_cleanup(struct vb2_buffer *vb)
{
struct cio2_device *cio2 = vb2_get_drv_priv(vb->vb2_queue);
+ struct device *dev = &cio2->pci_dev->dev;
struct cio2_buffer *b =
container_of(vb, struct cio2_buffer, vbb.vb2_buf);
unsigned int i;
@@ -958,7 +962,7 @@ static void cio2_vb2_buf_cleanup(struct vb2_buffer *vb)
/* Free LOP table */
for (i = 0; i < CIO2_MAX_LOPS; i++) {
if (b->lop[i])
- dma_free_coherent(&cio2->pci_dev->dev, PAGE_SIZE,
+ dma_free_coherent(dev, PAGE_SIZE,
b->lop[i], b->lop_bus_addr[i]);
}
}
@@ -967,14 +971,15 @@ static int cio2_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
{
struct cio2_queue *q = vb2q_to_cio2_queue(vq);
struct cio2_device *cio2 = vb2_get_drv_priv(vq);
+ struct device *dev = &cio2->pci_dev->dev;
int r;
cio2->cur_queue = q;
atomic_set(&q->frame_sequence, 0);
- r = pm_runtime_resume_and_get(&cio2->pci_dev->dev);
+ r = pm_runtime_resume_and_get(dev);
if (r < 0) {
- dev_info(&cio2->pci_dev->dev, "failed to set power %d\n", r);
+ dev_info(dev, "failed to set power %d\n", r);
return r;
}
@@ -1000,9 +1005,9 @@ static int cio2_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
fail_hw:
media_pipeline_stop(&q->vdev.entity);
fail_pipeline:
- dev_dbg(&cio2->pci_dev->dev, "failed to start streaming (%d)\n", r);
+ dev_dbg(dev, "failed to start streaming (%d)\n", r);
cio2_vb2_return_all_buffers(q, VB2_BUF_STATE_QUEUED);
- pm_runtime_put(&cio2->pci_dev->dev);
+ pm_runtime_put(dev);
return r;
}
@@ -1011,16 +1016,16 @@ static void cio2_vb2_stop_streaming(struct vb2_queue *vq)
{
struct cio2_queue *q = vb2q_to_cio2_queue(vq);
struct cio2_device *cio2 = vb2_get_drv_priv(vq);
+ struct device *dev = &cio2->pci_dev->dev;
if (v4l2_subdev_call(q->sensor, video, s_stream, 0))
- dev_err(&cio2->pci_dev->dev,
- "failed to stop sensor streaming\n");
+ dev_err(dev, "failed to stop sensor streaming\n");
cio2_hw_exit(cio2, q);
synchronize_irq(cio2->pci_dev->irq);
cio2_vb2_return_all_buffers(q, VB2_BUF_STATE_ERROR);
media_pipeline_stop(&q->vdev.entity);
- pm_runtime_put(&cio2->pci_dev->dev);
+ pm_runtime_put(dev);
cio2->streaming = false;
}
@@ -1312,12 +1317,12 @@ static int cio2_video_link_validate(struct media_link *link)
struct video_device, entity);
struct cio2_queue *q = container_of(vd, struct cio2_queue, vdev);
struct cio2_device *cio2 = video_get_drvdata(vd);
+ struct device *dev = &cio2->pci_dev->dev;
struct v4l2_subdev_format source_fmt;
int ret;
if (!media_entity_remote_pad(link->sink->entity->pads)) {
- dev_info(&cio2->pci_dev->dev,
- "video node %s pad not connected\n", vd->name);
+ dev_info(dev, "video node %s pad not connected\n", vd->name);
return -ENOTCONN;
}
@@ -1327,8 +1332,7 @@ static int cio2_video_link_validate(struct media_link *link)
if (source_fmt.format.width != q->format.width ||
source_fmt.format.height != q->format.height) {
- dev_err(&cio2->pci_dev->dev,
- "Wrong width or height %ux%u (%ux%u expected)\n",
+ dev_err(dev, "Wrong width or height %ux%u (%ux%u expected)\n",
q->format.width, q->format.height,
source_fmt.format.width, source_fmt.format.height);
return -EINVAL;
@@ -1409,6 +1413,7 @@ static int cio2_notifier_complete(struct v4l2_async_notifier *notifier)
{
struct cio2_device *cio2 = container_of(notifier, struct cio2_device,
notifier);
+ struct device *dev = &cio2->pci_dev->dev;
struct sensor_async_subdev *s_asd;
struct v4l2_async_subdev *asd;
struct cio2_queue *q;
@@ -1425,8 +1430,7 @@ static int cio2_notifier_complete(struct v4l2_async_notifier *notifier)
break;
if (pad == q->sensor->entity.num_pads) {
- dev_err(&cio2->pci_dev->dev,
- "failed to find src pad for %s\n",
+ dev_err(dev, "failed to find src pad for %s\n",
q->sensor->name);
return -ENXIO;
}
@@ -1436,8 +1440,7 @@ static int cio2_notifier_complete(struct v4l2_async_notifier *notifier)
&q->subdev.entity, CIO2_PAD_SINK,
0);
if (ret) {
- dev_err(&cio2->pci_dev->dev,
- "failed to create link for %s\n",
+ dev_err(dev, "failed to create link for %s\n",
q->sensor->name);
return ret;
}
@@ -1454,6 +1457,7 @@ static const struct v4l2_async_notifier_operations cio2_async_ops = {
static int cio2_parse_firmware(struct cio2_device *cio2)
{
+ struct device *dev = &cio2->pci_dev->dev;
unsigned int i;
int ret;
@@ -1464,10 +1468,8 @@ static int cio2_parse_firmware(struct cio2_device *cio2)
struct sensor_async_subdev *s_asd;
struct fwnode_handle *ep;
- ep = fwnode_graph_get_endpoint_by_id(
- dev_fwnode(&cio2->pci_dev->dev), i, 0,
- FWNODE_GRAPH_ENDPOINT_NEXT);
-
+ ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev), i, 0,
+ FWNODE_GRAPH_ENDPOINT_NEXT);
if (!ep)
continue;
@@ -1501,8 +1503,7 @@ static int cio2_parse_firmware(struct cio2_device *cio2)
cio2->notifier.ops = &cio2_async_ops;
ret = v4l2_async_notifier_register(&cio2->v4l2_dev, &cio2->notifier);
if (ret)
- dev_err(&cio2->pci_dev->dev,
- "failed to register async notifier : %d\n", ret);
+ dev_err(dev, "failed to register async notifier : %d\n", ret);
return ret;
}
@@ -1521,7 +1522,7 @@ static int cio2_queue_init(struct cio2_device *cio2, struct cio2_queue *q)
static const u32 default_width = 1936;
static const u32 default_height = 1096;
const struct ipu3_cio2_fmt dflt_fmt = formats[0];
-
+ struct device *dev = &cio2->pci_dev->dev;
struct video_device *vdev = &q->vdev;
struct vb2_queue *vbq = &q->vbq;
struct v4l2_subdev *subdev = &q->subdev;
@@ -1563,8 +1564,7 @@ static int cio2_queue_init(struct cio2_device *cio2, struct cio2_queue *q)
subdev->internal_ops = &cio2_subdev_internal_ops;
r = media_entity_pads_init(&subdev->entity, CIO2_PADS, q->subdev_pads);
if (r) {
- dev_err(&cio2->pci_dev->dev,
- "failed initialize subdev media entity (%d)\n", r);
+ dev_err(dev, "failed initialize subdev media entity (%d)\n", r);
goto fail_subdev_media_entity;
}
@@ -1572,8 +1572,8 @@ static int cio2_queue_init(struct cio2_device *cio2, struct cio2_queue *q)
vdev->entity.ops = &cio2_video_entity_ops;
r = media_entity_pads_init(&vdev->entity, 1, &q->vdev_pad);
if (r) {
- dev_err(&cio2->pci_dev->dev,
- "failed initialize videodev media entity (%d)\n", r);
+ dev_err(dev, "failed initialize videodev media entity (%d)\n",
+ r);
goto fail_vdev_media_entity;
}
@@ -1587,8 +1587,7 @@ static int cio2_queue_init(struct cio2_device *cio2, struct cio2_queue *q)
v4l2_set_subdevdata(subdev, cio2);
r = v4l2_device_register_subdev(&cio2->v4l2_dev, subdev);
if (r) {
- dev_err(&cio2->pci_dev->dev,
- "failed initialize subdev (%d)\n", r);
+ dev_err(dev, "failed initialize subdev (%d)\n", r);
goto fail_subdev;
}
@@ -1604,8 +1603,7 @@ static int cio2_queue_init(struct cio2_device *cio2, struct cio2_queue *q)
vbq->lock = &q->lock;
r = vb2_queue_init(vbq);
if (r) {
- dev_err(&cio2->pci_dev->dev,
- "failed to initialize videobuf2 queue (%d)\n", r);
+ dev_err(dev, "failed to initialize videobuf2 queue (%d)\n", r);
goto fail_subdev;
}
@@ -1622,8 +1620,7 @@ static int cio2_queue_init(struct cio2_device *cio2, struct cio2_queue *q)
video_set_drvdata(vdev, cio2);
r = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
if (r) {
- dev_err(&cio2->pci_dev->dev,
- "failed to register video device (%d)\n", r);
+ dev_err(dev, "failed to register video device (%d)\n", r);
goto fail_vdev;
}
@@ -1645,7 +1642,7 @@ static int cio2_queue_init(struct cio2_device *cio2, struct cio2_queue *q)
fail_vdev_media_entity:
media_entity_cleanup(&subdev->entity);
fail_subdev_media_entity:
- cio2_fbpt_exit(q, &cio2->pci_dev->dev);
+ cio2_fbpt_exit(q, dev);
fail_fbpt:
mutex_destroy(&q->subdev_lock);
mutex_destroy(&q->lock);
@@ -1712,11 +1709,12 @@ static int cio2_check_fwnode_graph(struct fwnode_handle *fwnode)
static int cio2_pci_probe(struct pci_dev *pci_dev,
const struct pci_device_id *id)
{
- struct fwnode_handle *fwnode = dev_fwnode(&pci_dev->dev);
+ struct device *dev = &pci_dev->dev;
+ struct fwnode_handle *fwnode = dev_fwnode(dev);
struct cio2_device *cio2;
int r;
- cio2 = devm_kzalloc(&pci_dev->dev, sizeof(*cio2), GFP_KERNEL);
+ cio2 = devm_kzalloc(dev, sizeof(*cio2), GFP_KERNEL);
if (!cio2)
return -ENOMEM;
cio2->pci_dev = pci_dev;
@@ -1729,7 +1727,7 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
r = cio2_check_fwnode_graph(fwnode);
if (r) {
if (fwnode && !IS_ERR_OR_NULL(fwnode->secondary)) {
- dev_err(&pci_dev->dev, "fwnode graph has no endpoints connected\n");
+ dev_err(dev, "fwnode graph has no endpoints connected\n");
return -EINVAL;
}
@@ -1740,16 +1738,16 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
r = pcim_enable_device(pci_dev);
if (r) {
- dev_err(&pci_dev->dev, "failed to enable device (%d)\n", r);
+ dev_err(dev, "failed to enable device (%d)\n", r);
return r;
}
- dev_info(&pci_dev->dev, "device 0x%x (rev: 0x%x)\n",
+ dev_info(dev, "device 0x%x (rev: 0x%x)\n",
pci_dev->device, pci_dev->revision);
r = pcim_iomap_regions(pci_dev, 1 << CIO2_PCI_BAR, pci_name(pci_dev));
if (r) {
- dev_err(&pci_dev->dev, "failed to remap I/O memory (%d)\n", r);
+ dev_err(dev, "failed to remap I/O memory (%d)\n", r);
return -ENODEV;
}
@@ -1761,13 +1759,13 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
r = pci_set_dma_mask(pci_dev, CIO2_DMA_MASK);
if (r) {
- dev_err(&pci_dev->dev, "failed to set DMA mask (%d)\n", r);
+ dev_err(dev, "failed to set DMA mask (%d)\n", r);
return -ENODEV;
}
r = pci_enable_msi(pci_dev);
if (r) {
- dev_err(&pci_dev->dev, "failed to enable MSI (%d)\n", r);
+ dev_err(dev, "failed to enable MSI (%d)\n", r);
return r;
}
@@ -1777,7 +1775,7 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
mutex_init(&cio2->lock);
- cio2->media_dev.dev = &cio2->pci_dev->dev;
+ cio2->media_dev.dev = dev;
strscpy(cio2->media_dev.model, CIO2_DEVICE_NAME,
sizeof(cio2->media_dev.model));
snprintf(cio2->media_dev.bus_info, sizeof(cio2->media_dev.bus_info),
@@ -1790,10 +1788,9 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
goto fail_mutex_destroy;
cio2->v4l2_dev.mdev = &cio2->media_dev;
- r = v4l2_device_register(&pci_dev->dev, &cio2->v4l2_dev);
+ r = v4l2_device_register(dev, &cio2->v4l2_dev);
if (r) {
- dev_err(&pci_dev->dev,
- "failed to register V4L2 device (%d)\n", r);
+ dev_err(dev, "failed to register V4L2 device (%d)\n", r);
goto fail_media_device_unregister;
}
@@ -1808,15 +1805,15 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
if (r)
goto fail_clean_notifier;
- r = devm_request_irq(&pci_dev->dev, pci_dev->irq, cio2_irq,
- IRQF_SHARED, CIO2_NAME, cio2);
+ r = devm_request_irq(dev, pci_dev->irq, cio2_irq, IRQF_SHARED,
+ CIO2_NAME, cio2);
if (r) {
- dev_err(&pci_dev->dev, "failed to request IRQ (%d)\n", r);
+ dev_err(dev, "failed to request IRQ (%d)\n", r);
goto fail_clean_notifier;
}
- pm_runtime_put_noidle(&pci_dev->dev);
- pm_runtime_allow(&pci_dev->dev);
+ pm_runtime_put_noidle(dev);
+ pm_runtime_allow(dev);
return 0;
@@ -2003,10 +2000,9 @@ static int __maybe_unused cio2_resume(struct device *dev)
if (!cio2->streaming)
return 0;
/* Start stream */
- r = pm_runtime_force_resume(&cio2->pci_dev->dev);
+ r = pm_runtime_force_resume(dev);
if (r < 0) {
- dev_err(&cio2->pci_dev->dev,
- "failed to set power %d\n", r);
+ dev_err(dev, "failed to set power %d\n", r);
return r;
}
--
2.30.2