Initialize ctrl handler by reading platform specific firmware
capabilities. Capabilities are features supported by a
specific platform (SOC). Each capability is defined with
min, max, range, default value and corresponding HFI.
Implement s_ctrl and g_volatile_ctrl ctrl ops.
Co-developed-by: Vedang Nagar <quic_vnagar@xxxxxxxxxxx>
Signed-off-by: Vedang Nagar <quic_vnagar@xxxxxxxxxxx>
Signed-off-by: Dikshita Agarwal <quic_dikshita@xxxxxxxxxxx>
---
drivers/media/platform/qcom/iris/Makefile | 1 +
drivers/media/platform/qcom/iris/iris_core.h | 2 +
drivers/media/platform/qcom/iris/iris_ctrls.c | 186 +++++++++++++++++++++
drivers/media/platform/qcom/iris/iris_ctrls.h | 17 ++
.../platform/qcom/iris/iris_hfi_gen2_defines.h | 2 +
drivers/media/platform/qcom/iris/iris_instance.h | 4 +
.../platform/qcom/iris/iris_platform_common.h | 29 ++++
.../platform/qcom/iris/iris_platform_sm8550.c | 47 ++++++
drivers/media/platform/qcom/iris/iris_probe.c | 3 +
drivers/media/platform/qcom/iris/iris_vdec.c | 9 +-
drivers/media/platform/qcom/iris/iris_vdec.h | 2 +-
drivers/media/platform/qcom/iris/iris_vidc.c | 9 +-
12 files changed, 308 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/qcom/iris/Makefile b/drivers/media/platform/qcom/iris/Makefile
index 48ab264b7906..f685d76c2f79 100644
--- a/drivers/media/platform/qcom/iris/Makefile
+++ b/drivers/media/platform/qcom/iris/Makefile
@@ -1,5 +1,6 @@
iris-objs += iris_buffer.o \
iris_core.o \
+ iris_ctrls.o \
iris_firmware.o \
iris_hfi_common.o \
iris_hfi_gen1_command.o \
diff --git a/drivers/media/platform/qcom/iris/iris_core.h b/drivers/media/platform/qcom/iris/iris_core.h
index 578166d196f6..70e0dbc7c457 100644
--- a/drivers/media/platform/qcom/iris/iris_core.h
+++ b/drivers/media/platform/qcom/iris/iris_core.h
@@ -63,6 +63,7 @@ struct icc_info {
* @intr_status: interrupt status
* @sys_error_handler: a delayed work for handling system fatal error
* @instances: a list_head of all instances
+ * @inst_fw_caps: an array of supported instance capabilities
*/
struct iris_core {
@@ -101,6 +102,7 @@ struct iris_core {
u32 intr_status;
struct delayed_work sys_error_handler;
struct list_head instances;
+ struct platform_inst_fw_cap inst_fw_caps[INST_FW_CAP_MAX];
};
int iris_core_init(struct iris_core *core);
diff --git a/drivers/media/platform/qcom/iris/iris_ctrls.c b/drivers/media/platform/qcom/iris/iris_ctrls.c
new file mode 100644
index 000000000000..4b991145dbad
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_ctrls.c
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <media/v4l2-mem2mem.h>
+#include "iris_ctrls.h"
+#include "iris_instance.h"
+
+static inline bool iris_valid_cap_id(enum platform_inst_fw_cap_type cap_id)
+{
+ return cap_id >= 1 && cap_id < INST_FW_CAP_MAX;
+}
+
+static enum platform_inst_fw_cap_type iris_get_cap_id(u32 id)
+{
+ switch (id) {
+ case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
+ return PROFILE;
+ case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
+ return LEVEL;
+ default:
+ return INST_FW_CAP_MAX;
+ }
+}
+
+static u32 iris_get_v4l2_id(enum platform_inst_fw_cap_type cap_id)
+{
+ if (!iris_valid_cap_id(cap_id))
+ return 0;
+
+ switch (cap_id) {
+ case PROFILE:
+ return V4L2_CID_MPEG_VIDEO_H264_PROFILE;
+ case LEVEL:
+ return V4L2_CID_MPEG_VIDEO_H264_LEVEL;
+ default:
+ return 0;
+ }
+}
+
+static int iris_vdec_op_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct iris_inst *inst = container_of(ctrl->handler, struct iris_inst, ctrl_handler);
+ enum platform_inst_fw_cap_type cap_id;
+
+ switch (ctrl->id) {
+ case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
+ ctrl->val = inst->buffers[BUF_OUTPUT].min_count;
+ break;
+ case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT:
+ ctrl->val = inst->buffers[BUF_INPUT].min_count;
+ break;
+ default:
+ cap_id = iris_get_cap_id(ctrl->id);
+ if (iris_valid_cap_id(cap_id))
+ ctrl->val = inst->fw_caps[cap_id].value;
+ else
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int iris_vdec_op_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct iris_inst *inst = container_of(ctrl->handler, struct iris_inst, ctrl_handler);
+ enum platform_inst_fw_cap_type cap_id;
+ struct platform_inst_fw_cap *cap;
+ struct vb2_queue *q;
+
+ cap = &inst->fw_caps[0];
+ cap_id = iris_get_cap_id(ctrl->id);
+ if (!iris_valid_cap_id(cap_id))
+ return -EINVAL;
+
+ q = v4l2_m2m_get_src_vq(inst->m2m_ctx);
+ if (vb2_is_streaming(q) &&
+ (!(inst->fw_caps[cap_id].flags & CAP_FLAG_DYNAMIC_ALLOWED)))
+ return -EINVAL;
+
+ cap[cap_id].flags |= CAP_FLAG_CLIENT_SET;
+
+ inst->fw_caps[cap_id].value = ctrl->val;
+
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops iris_ctrl_ops = {
+ .s_ctrl = iris_vdec_op_s_ctrl,
+ .g_volatile_ctrl = iris_vdec_op_g_volatile_ctrl,
+};
+
+int iris_ctrls_init(struct iris_inst *inst)
+{
+ struct platform_inst_fw_cap *cap = &inst->fw_caps[0];
+ u32 num_ctrls = 0, ctrl_idx = 0, idx = 0;
+ u32 v4l2_id;
+ int ret;
+
+ for (idx = 1; idx < INST_FW_CAP_MAX; idx++) {
+ if (iris_get_v4l2_id(cap[idx].cap_id))
+ num_ctrls++;
+ }
+ if (!num_ctrls)
+ return -EINVAL;
+
+ ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, num_ctrls);
+ if (ret)
+ return ret;
+
+ for (idx = 1; idx < INST_FW_CAP_MAX; idx++) {
+ struct v4l2_ctrl *ctrl;
+
+ v4l2_id = iris_get_v4l2_id(cap[idx].cap_id);
+ if (!v4l2_id)
+ continue;
+
+ if (ctrl_idx >= num_ctrls) {
+ ret = -EINVAL;
+ goto error;
+ }
+
+ if (cap[idx].flags & CAP_FLAG_MENU) {
+ ctrl = v4l2_ctrl_new_std_menu(&inst->ctrl_handler,
+ &iris_ctrl_ops,
+ v4l2_id,
+ cap[idx].max,
+ ~(cap[idx].step_or_mask),
+ cap[idx].value);
+ } else {
+ ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler,
+ &iris_ctrl_ops,
+ v4l2_id,
+ cap[idx].min,
+ cap[idx].max,
+ cap[idx].step_or_mask,
+ cap[idx].value);
+ }
+ if (!ctrl) {
+ ret = -EINVAL;
+ goto error;
+ }
+
+ ret = inst->ctrl_handler.error;
+ if (ret)
+ goto error;
+
+ if ((cap[idx].flags & CAP_FLAG_VOLATILE) ||
+ (ctrl->id == V4L2_CID_MIN_BUFFERS_FOR_CAPTURE ||
+ ctrl->id == V4L2_CID_MIN_BUFFERS_FOR_OUTPUT))
+ ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
+
+ ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
+ ctrl_idx++;
+ }
+
+ return 0;
+error:
+ v4l2_ctrl_handler_free(&inst->ctrl_handler);
+
+ return ret;
+}
+
+void iris_session_init_caps(struct iris_core *core)
+{
+ struct platform_inst_fw_cap *caps;
+ u32 i, num_cap, cap_id;
+
+ caps = core->iris_platform_data->inst_fw_caps;
+ num_cap = core->iris_platform_data->inst_fw_caps_size;
+
+ for (i = 0; i < num_cap; i++) {
+ cap_id = caps[i].cap_id;
+ if (!iris_valid_cap_id(cap_id))
+ continue;
+
+ core->inst_fw_caps[cap_id].cap_id = caps[i].cap_id;
+ core->inst_fw_caps[cap_id].min = caps[i].min;
+ core->inst_fw_caps[cap_id].max = caps[i].max;
+ core->inst_fw_caps[cap_id].step_or_mask = caps[i].step_or_mask;
+ core->inst_fw_caps[cap_id].value = caps[i].value;
+ core->inst_fw_caps[cap_id].flags = caps[i].flags;
+ core->inst_fw_caps[cap_id].hfi_id = caps[i].hfi_id;
+ }
+}
diff --git a/drivers/media/platform/qcom/iris/iris_ctrls.h b/drivers/media/platform/qcom/iris/iris_ctrls.h
new file mode 100644
index 000000000000..3e4dd46e7a26
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_ctrls.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _IRIS_CTRLS_H_
+#define _IRIS_CTRLS_H_
+
+#include "iris_platform_common.h"
+
+struct iris_core;
+struct iris_inst;
+
+int iris_ctrls_init(struct iris_inst *inst);
+void iris_session_init_caps(struct iris_core *core);
+
+#endif
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_defines.h b/drivers/media/platform/qcom/iris/iris_hfi_gen2_defines.h
index 18cc9365ab75..457ab1887793 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen2_defines.h
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_defines.h
@@ -28,6 +28,8 @@
#define HFI_PROP_UBWC_BANK_SWZL_LEVEL3 0x03000008
#define HFI_PROP_UBWC_BANK_SPREADING 0x03000009
#define HFI_PROP_CODEC 0x03000100
+#define HFI_PROP_PROFILE 0x03000107
+#define HFI_PROP_LEVEL 0x03000108
#define HFI_PROP_DEC_DEFAULT_HEADER 0x03000168
#define HFI_PROP_END 0x03FFFFFF
diff --git a/drivers/media/platform/qcom/iris/iris_instance.h b/drivers/media/platform/qcom/iris/iris_instance.h
index d28b8fd7ec2f..43ced6ece289 100644
--- a/drivers/media/platform/qcom/iris/iris_instance.h
+++ b/drivers/media/platform/qcom/iris/iris_instance.h
@@ -23,8 +23,10 @@
* @fh: reference of v4l2 file handler
* @fmt_src: structure of v4l2_format for source
* @fmt_dst: structure of v4l2_format for destination
+ * @ctrl_handler: reference of v4l2 ctrl handler
* @crop: structure of crop info
* @completions: structure of signal completions
+ * @fw_caps: array of supported instance firmware capabilities
* @buffers: array of different iris buffers
* @fw_min_count: minimnum count of buffers needed by fw
* @once_per_session_set: boolean to set once per session property
@@ -42,8 +44,10 @@ struct iris_inst {
struct v4l2_fh fh;
struct v4l2_format *fmt_src;
struct v4l2_format *fmt_dst;
+ struct v4l2_ctrl_handler ctrl_handler;
struct iris_hfi_rect_desc crop;
struct completion completion;
+ struct platform_inst_fw_cap fw_caps[INST_FW_CAP_MAX];
struct iris_buffers buffers[BUF_TYPE_MAX];
u32 fw_min_count;
bool once_per_session_set;
diff --git a/drivers/media/platform/qcom/iris/iris_platform_common.h b/drivers/media/platform/qcom/iris/iris_platform_common.h
index 54a2d723797b..c45928a6c4fe 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_common.h
+++ b/drivers/media/platform/qcom/iris/iris_platform_common.h
@@ -49,6 +49,33 @@ struct platform_inst_caps {
u32 max_frame_height;
u32 max_mbpf;
};
+
+enum platform_inst_fw_cap_type {
+ PROFILE = 1,
+ LEVEL,
+ INST_FW_CAP_MAX,
+};
+
+enum platform_inst_fw_cap_flags {
+ CAP_FLAG_DYNAMIC_ALLOWED = BIT(0),
+ CAP_FLAG_MENU = BIT(1),
+ CAP_FLAG_INPUT_PORT = BIT(2),
+ CAP_FLAG_OUTPUT_PORT = BIT(3),
+ CAP_FLAG_CLIENT_SET = BIT(4),
+ CAP_FLAG_BITMASK = BIT(5),
+ CAP_FLAG_VOLATILE = BIT(6),
+};
+
+struct platform_inst_fw_cap {
+ enum platform_inst_fw_cap_type cap_id;
+ s64 min;
+ s64 max;
+ s64 step_or_mask;
+ s64 value;
+ u32 hfi_id;
+ enum platform_inst_fw_cap_flags flags;
+};
+
struct iris_core_power {
u64 clk_freq;
u64 icc_bw;
@@ -79,6 +106,8 @@ struct iris_platform_data {
const char *fwname;
u32 pas_id;
struct platform_inst_caps *inst_caps;
+ struct platform_inst_fw_cap *inst_fw_caps;
+ u32 inst_fw_caps_size;
struct tz_cp_config *tz_cp_config_data;
u32 core_arch;
u32 hw_response_timeout;
diff --git a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
index 37c0130d7059..7e3703adb5b3 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
+++ b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
@@ -5,11 +5,56 @@
#include "iris_core.h"
#include "iris_hfi_gen2.h"
+#include "iris_hfi_gen2_defines.h"
#include "iris_platform_common.h"
#include "iris_vpu_common.h"
#define VIDEO_ARCH_LX 1
+static struct platform_inst_fw_cap inst_fw_cap_sm8550[] = {
+ {
+ .cap_id = PROFILE,
+ .min = V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE,
+ .max = V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_HIGH,
+ .step_or_mask = BIT(V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
+ BIT(V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_HIGH) |
+ BIT(V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE) |
+ BIT(V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
+ BIT(V4L2_MPEG_VIDEO_H264_PROFILE_HIGH),
+ .value = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
+ .hfi_id = HFI_PROP_PROFILE,
+ .flags = CAP_FLAG_OUTPUT_PORT | CAP_FLAG_MENU,
+ },
+ {
+ .cap_id = LEVEL,
+ .min = V4L2_MPEG_VIDEO_H264_LEVEL_1_0,
+ .max = V4L2_MPEG_VIDEO_H264_LEVEL_6_2,
+ .step_or_mask = BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1_0) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1B) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1_1) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1_2) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1_3) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_2_1) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_2_2) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_0) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_1) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_2) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_5_0) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_5_1) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_5_2) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_6_0) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_6_1) |
+ BIT(V4L2_MPEG_VIDEO_H264_LEVEL_6_2),
+ .value = V4L2_MPEG_VIDEO_H264_LEVEL_6_1,
+ .hfi_id = HFI_PROP_LEVEL,
+ .flags = CAP_FLAG_OUTPUT_PORT | CAP_FLAG_MENU,
+ },
+};
+
static struct platform_inst_caps platform_inst_cap_sm8550 = {
.min_frame_width = 96,
.max_frame_width = 8192,
@@ -77,6 +122,8 @@ struct iris_platform_data sm8550_data = {
.fwname = "qcom/vpu/vpu30_p4.mbn",
.pas_id = IRIS_PAS_ID,
.inst_caps = &platform_inst_cap_sm8550,
+ .inst_fw_caps = inst_fw_cap_sm8550,
+ .inst_fw_caps_size = ARRAY_SIZE(inst_fw_cap_sm8550),
.tz_cp_config_data = &tz_cp_config_sm8550,
.core_arch = VIDEO_ARCH_LX,
.hw_response_timeout = HW_RESPONSE_TIMEOUT_VALUE,
diff --git a/drivers/media/platform/qcom/iris/iris_probe.c b/drivers/media/platform/qcom/iris/iris_probe.c
index 15463a07ae59..86ef2e5c488e 100644
--- a/drivers/media/platform/qcom/iris/iris_probe.c
+++ b/drivers/media/platform/qcom/iris/iris_probe.c
@@ -12,6 +12,7 @@
#include <linux/reset.h>
#include "iris_core.h"
+#include "iris_ctrls.h"
#include "iris_vidc.h"
static int iris_init_icc(struct iris_core *core)
@@ -237,6 +238,8 @@ static int iris_probe(struct platform_device *pdev)
if (ret)
return ret;
+ iris_session_init_caps(core);
+
ret = v4l2_device_register(dev, &core->v4l2_dev);
if (ret)
return ret;
diff --git a/drivers/media/platform/qcom/iris/iris_vdec.c b/drivers/media/platform/qcom/iris/iris_vdec.c
index c4eeba5ed6da..66a54771b9e8 100644
--- a/drivers/media/platform/qcom/iris/iris_vdec.c
+++ b/drivers/media/platform/qcom/iris/iris_vdec.c
@@ -7,6 +7,7 @@
#include <media/v4l2-mem2mem.h>
#include "iris_buffer.h"
+#include "iris_ctrls.h"
#include "iris_instance.h"
#include "iris_vdec.h"
#include "iris_vpu_buffer.h"
@@ -16,8 +17,9 @@
#define DEFAULT_CODEC_ALIGNMENT 16
#define MAX_EVENTS 30
-void iris_vdec_inst_init(struct iris_inst *inst)
+int iris_vdec_inst_init(struct iris_inst *inst)
{
+ struct iris_core *core = inst->core;
struct v4l2_format *f;
inst->fmt_src = kzalloc(sizeof(*inst->fmt_src), GFP_KERNEL);
@@ -54,6 +56,11 @@ void iris_vdec_inst_init(struct iris_inst *inst)
inst->buffers[BUF_OUTPUT].min_count = iris_vpu_buf_count(inst, BUF_OUTPUT);
inst->buffers[BUF_OUTPUT].actual_count = inst->buffers[BUF_OUTPUT].min_count;
inst->buffers[BUF_OUTPUT].size = f->fmt.pix_mp.plane_fmt[0].sizeimage;
+
+ memcpy(&inst->fw_caps[0], &core->inst_fw_caps[0],
+ INST_FW_CAP_MAX * sizeof(struct platform_inst_fw_cap));
+
+ return iris_ctrls_init(inst);
}
void iris_vdec_inst_deinit(struct iris_inst *inst)
diff --git a/drivers/media/platform/qcom/iris/iris_vdec.h b/drivers/media/platform/qcom/iris/iris_vdec.h
index 707fff34bf4d..d7b8a0ad6fa8 100644
--- a/drivers/media/platform/qcom/iris/iris_vdec.h
+++ b/drivers/media/platform/qcom/iris/iris_vdec.h
@@ -8,7 +8,7 @@
struct iris_inst;
-void iris_vdec_inst_init(struct iris_inst *inst);
+int iris_vdec_inst_init(struct iris_inst *inst);
void iris_vdec_inst_deinit(struct iris_inst *inst);
int iris_vdec_enum_fmt(struct iris_inst *inst, struct v4l2_fmtdesc *f);
int iris_vdec_try_fmt(struct iris_inst *inst, struct v4l2_format *f);
diff --git a/drivers/media/platform/qcom/iris/iris_vidc.c b/drivers/media/platform/qcom/iris/iris_vidc.c
index 8068c06c1f11..93d2be118a81 100644
--- a/drivers/media/platform/qcom/iris/iris_vidc.c
+++ b/drivers/media/platform/qcom/iris/iris_vidc.c
@@ -22,12 +22,14 @@
static void iris_v4l2_fh_init(struct iris_inst *inst)
{
v4l2_fh_init(&inst->fh, inst->core->vdev_dec);
+ inst->fh.ctrl_handler = &inst->ctrl_handler;
v4l2_fh_add(&inst->fh);
}
static void iris_v4l2_fh_deinit(struct iris_inst *inst)
{
v4l2_fh_del(&inst->fh);
+ inst->fh.ctrl_handler = NULL;
v4l2_fh_exit(&inst->fh);
}
@@ -159,7 +161,9 @@ int iris_open(struct file *filp)
goto fail_m2m_release;
}
- iris_vdec_inst_init(inst);
+ ret = iris_vdec_inst_init(inst);
+ if (ret)
+ goto fail_m2m_ctx_release;
iris_add_session(inst);
@@ -168,6 +172,8 @@ int iris_open(struct file *filp)
return 0;
+fail_m2m_ctx_release:
+ v4l2_m2m_ctx_release(inst->m2m_ctx);
fail_m2m_release:
v4l2_m2m_release(inst->m2m_dev);
fail_v4l2_fh_deinit:
@@ -199,6 +205,7 @@ int iris_close(struct file *filp)
{
struct iris_inst *inst = iris_get_inst(filp, NULL);
+ v4l2_ctrl_handler_free(&inst->ctrl_handler);
v4l2_m2m_ctx_release(inst->m2m_ctx);
v4l2_m2m_release(inst->m2m_dev);
mutex_lock(&inst->lock);
--
2.34.1
