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media: ti-vpe: cal: support 8 DMA contexts 

The current driver only ever needs 2 DMA contexts (one per PHY), but we
need to use more of the 8 contexts to add support for multiple streams.

Change the code so that we allocate DMA contexts as needed, which at
this time is 1 per PHY, but could be up to 8.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Tomi Valkeinen 2021-06-14 13:23:38 +02:00 committed by Mauro Carvalho Chehab
parent 2e7e09a902
commit 75e7e58bfa
2 changed files with 14 additions and 22 deletions
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31
drivers/media/platform/ti-vpe/cal.c
View File

@ -658,7 +658,7 @@ static irqreturn_t cal_irq(int irq_cal, void *data)
/* Clear Interrupt status */
cal_write(cal, CAL_HL_IRQSTATUS(1), status);
for (i = 0; i < ARRAY_SIZE(cal->ctx); ++i) {
for (i = 0; i < cal->num_contexts; ++i) {
if (status & CAL_HL_IRQ_WDMA_END_MASK(i))
cal_irq_wdma_end(cal->ctx[i]);
}
@ -672,7 +672,7 @@ static irqreturn_t cal_irq(int irq_cal, void *data)
/* Clear Interrupt status */
cal_write(cal, CAL_HL_IRQSTATUS(2), status);
for (i = 0; i < ARRAY_SIZE(cal->ctx); ++i) {
for (i = 0; i < cal->num_contexts; ++i) {
if (status & CAL_HL_IRQ_WDMA_START_MASK(i))
cal_irq_wdma_start(cal->ctx[i]);
}
@ -742,10 +742,7 @@ static int cal_async_notifier_complete(struct v4l2_async_notifier *notifier)
unsigned int i;
int ret;
for (i = 0; i < ARRAY_SIZE(cal->ctx); ++i) {
if (!cal->ctx[i])
continue;
for (i = 0; i < cal->num_contexts; ++i) {
ret = cal_ctx_v4l2_register(cal->ctx[i]);
if (ret)
goto err_ctx_unreg;
@ -865,10 +862,8 @@ static void cal_media_unregister(struct cal_dev *cal)
unsigned int i;
/* Unregister all the V4L2 video devices. */
for (i = 0; i < ARRAY_SIZE(cal->ctx); i++) {
if (cal->ctx[i])
cal_ctx_v4l2_unregister(cal->ctx[i]);
}
for (i = 0; i < cal->num_contexts; i++)
cal_ctx_v4l2_unregister(cal->ctx[i]);
cal_async_notifier_unregister(cal);
media_device_unregister(&cal->mdev);
@ -915,10 +910,8 @@ static void cal_media_cleanup(struct cal_dev *cal)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(cal->ctx); i++) {
if (cal->ctx[i])
cal_ctx_v4l2_cleanup(cal->ctx[i]);
}
for (i = 0; i < cal->num_contexts; i++)
cal_ctx_v4l2_cleanup(cal->ctx[i]);
v4l2_device_unregister(&cal->v4l2_dev);
media_device_cleanup(&cal->mdev);
@ -1067,7 +1060,6 @@ static int cal_init_camerarx_regmap(struct cal_dev *cal)
static int cal_probe(struct platform_device *pdev)
{
struct cal_dev *cal;
struct cal_ctx *ctx;
bool connected = false;
unsigned int i;
int ret;
@ -1157,6 +1149,8 @@ static int cal_probe(struct platform_device *pdev)
ret = -ENODEV;
goto error_context;
}
cal->num_contexts++;
}
/* Register the media device. */
@ -1167,11 +1161,8 @@ static int cal_probe(struct platform_device *pdev)
return 0;
error_context:
for (i = 0; i < ARRAY_SIZE(cal->ctx); i++) {
ctx = cal->ctx[i];
if (ctx)
cal_ctx_v4l2_cleanup(ctx);
}
for (i = 0; i < cal->num_contexts; i++)
cal_ctx_v4l2_cleanup(cal->ctx[i]);
error_camerarx:
for (i = 0; i < cal->data->num_csi2_phy; i++)

5
drivers/media/platform/ti-vpe/cal.h
View File

@ -29,7 +29,7 @@
#include <media/videobuf2-v4l2.h>
#define CAL_MODULE_NAME "cal"
#define CAL_NUM_CONTEXT 2
#define CAL_MAX_NUM_CONTEXT 8
#define CAL_NUM_CSI2_PORTS 2
/*
@ -182,7 +182,8 @@ struct cal_dev {
/* Camera Core Module handle */
struct cal_camerarx *phy[CAL_NUM_CSI2_PORTS];
struct cal_ctx *ctx[CAL_NUM_CONTEXT];
u32 num_contexts;
struct cal_ctx *ctx[CAL_MAX_NUM_CONTEXT];
struct media_device mdev;
struct v4l2_device v4l2_dev;