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Message-ID: <52163cca-ee17-4c58-b247-8092ab9006f2@xs4all.nl>
Date: Wed, 23 Oct 2024 13:02:49 +0200
From: Hans Verkuil <hverkuil@...all.nl>
To: Dikshita Agarwal <quic_dikshita@...cinc.com>,
Vikash Garodia <quic_vgarodia@...cinc.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
<conor+dt@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>
Cc: Sebastian Fricke <sebastian.fricke@...labora.com>,
linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Vedang Nagar <quic_vnagar@...cinc.com>
Subject: Re: [PATCH v4 14/28] media: iris: implement iris v4l2_ctrl_ops
On 14/10/2024 11:07, Dikshita Agarwal wrote:
> 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@...cinc.com>
> Signed-off-by: Vedang Nagar <quic_vnagar@...cinc.com>
> Signed-off-by: Dikshita Agarwal <quic_dikshita@...cinc.com>
> ---
> 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;
This is NOT volatile. It is just a regular read-only control. If the min_count
changes, then just call v4l2_ctrl_s_ctrl for it in the driver to update the
value of this control.
> + default:
> + cap_id = iris_get_cap_id(ctrl->id);
> + if (iris_valid_cap_id(cap_id))
> + ctrl->val = inst->fw_caps[cap_id].value;
Looking at this code, this is almost certainly not volatile either.
I.e. whenever the driver updates inst->fw_caps[cap_id].value, it can
update this control at the same time.
A volatile control typically reads from the hardware register that is
automatically modified by the hardware. An example is the gain value if
the hardware is in autogain mode and changes the gain value autonomously.
> + 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,
So g_volatile_ctrl isn't needed.
> +};
> +
> +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;
Move this out of the loop, you can check the result at the end.
> +
> + 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;
Do you really need this? It certainly does not make sense for
V4L2_CID_MIN_BUFFERS_FOR_CAPTURE/OUTPUT.
If a control needs this, then set it in cap[idx].flags and don't add
it for all. It is rarely needed.
> + 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);
>
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