Enable logs in venus through debugfs to print
debug information.

Signed-off-by: Malathi Gottam <mgot...@codeaurora.org>
---
 drivers/media/platform/qcom/venus/core.c       |  62 ++++++++-
 drivers/media/platform/qcom/venus/core.h       |  32 +++++
 drivers/media/platform/qcom/venus/firmware.c   |   6 +-
 drivers/media/platform/qcom/venus/helpers.c    |  51 +++++--
 drivers/media/platform/qcom/venus/hfi.c        |  93 ++++++++++---
 drivers/media/platform/qcom/venus/hfi_cmds.c   |  33 +++--
 drivers/media/platform/qcom/venus/hfi_msgs.c   |   5 +
 drivers/media/platform/qcom/venus/vdec.c       | 185 +++++++++++++++++++------
 drivers/media/platform/qcom/venus/vdec_ctrls.c |   7 +-
 drivers/media/platform/qcom/venus/venc.c       | 139 +++++++++++++++----
 drivers/media/platform/qcom/venus/venc_ctrls.c |   9 +-
 11 files changed, 512 insertions(+), 110 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c 
b/drivers/media/platform/qcom/venus/core.c
index cb411eb..6531830 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -13,6 +13,7 @@
  *
  */
 #include <linux/clk.h>
+#include <linux/debugfs.h>
 #include <linux/init.h>
 #include <linux/ioctl.h>
 #include <linux/list.h>
@@ -31,6 +32,50 @@
 #include "venc.h"
 #include "firmware.h"
 
+struct dentry *debugfs_root;
+int venus_debug = ERR;
+EXPORT_SYMBOL_GPL(venus_debug);
+
+static struct dentry *venus_debugfs_init_drv(void)
+{
+       bool ok = false;
+       struct dentry *dir = NULL;
+
+       dir = debugfs_create_dir("venus", NULL);
+       if (IS_ERR_OR_NULL(dir)) {
+               dir = NULL;
+               pr_err("failed to create debug dir");
+               goto failed_create_dir;
+       }
+
+#define __debugfs_create(__type, __fname, __value) ({                          
\
+       struct dentry *f = debugfs_create_##__type(__fname, 0644,       \
+               dir, __value);                                                \
+       if (IS_ERR_OR_NULL(f)) {                                              \
+               dprintk(ERR, "Failed creating debugfs file '%pd/%s'\n",  \
+                       dir, __name);                                         \
+               f = NULL;                                                     \
+       }                                                                     \
+       f;                                                                    \
+})
+
+       ok =
+       __debugfs_create(x32, "debug_level", &venus_debug);
+
+#undef __debugfs_create
+
+       if (!ok)
+               goto failed_create_dir;
+
+       return dir;
+
+failed_create_dir:
+       if (dir)
+               debugfs_remove_recursive(debugfs_root);
+
+       return NULL;
+}
+
 static void venus_event_notify(struct venus_core *core, u32 event)
 {
        struct venus_inst *inst;
@@ -137,6 +182,7 @@ static int venus_clks_enable(struct venus_core *core)
 
        return 0;
 err:
+       dprintk(ERR, "Failed to enable clk:%d\n", i);
        while (i--)
                clk_disable_unprepare(core->clks[i]);
 
@@ -236,6 +282,8 @@ static int venus_probe(struct platform_device *pdev)
        struct resource *r;
        int ret;
 
+       debugfs_root = venus_debugfs_init_drv();
+
        core = devm_kzalloc(dev, sizeof(*core), GFP_KERNEL);
        if (!core)
                return -ENOMEM;
@@ -245,8 +293,10 @@ static int venus_probe(struct platform_device *pdev)
 
        r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        core->base = devm_ioremap_resource(dev, r);
-       if (IS_ERR(core->base))
+       if (IS_ERR(core->base)) {
+               dprintk(ERR, "Failed to ioremap platform resources");
                return PTR_ERR(core->base);
+               }
 
        core->irq = platform_get_irq(pdev, 0);
        if (core->irq < 0)
@@ -297,8 +347,10 @@ static int venus_probe(struct platform_device *pdev)
                goto err_runtime_disable;
 
        ret = venus_firmware_init(core);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to init video firmware\n");
                goto err_runtime_disable;
+               }
 
        ret = venus_boot(core);
        if (ret)
@@ -321,8 +373,10 @@ static int venus_probe(struct platform_device *pdev)
                goto err_venus_shutdown;
 
        ret = v4l2_device_register(dev, &core->v4l2_dev);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to register v4l2 device\n");
                goto err_core_deinit;
+               }
 
        ret = pm_runtime_put_sync(dev);
        if (ret)
@@ -366,6 +420,8 @@ static int venus_remove(struct platform_device *pdev)
 
        v4l2_device_unregister(&core->v4l2_dev);
 
+       debugfs_remove_recursive(debugfs_root);
+
        return ret;
 }
 
diff --git a/drivers/media/platform/qcom/venus/core.h 
b/drivers/media/platform/qcom/venus/core.h
index 6382cea..c31d9e0 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -25,6 +25,38 @@
 
 #define VIDC_CLKS_NUM_MAX      4
 
+extern int venus_debug;
+enum venus_msg_prio {
+       ERR  = 0x0001,
+       WARN = 0x0002,
+       INFO = 0x0004,
+       DBG  = 0x0008,
+};
+
+static inline char *get_debug_level_str(int level)
+{
+       switch (level) {
+       case ERR:
+               return "err";
+       case WARN:
+               return "warn";
+       case INFO:
+               return "info";
+       case DBG:
+               return "dbg";
+       default:
+               return "???";
+       }
+}
+
+#define dprintk(dbg_lvl, fmt, arg...)                          \
+       do {                                                    \
+               if (venus_debug & dbg_lvl)                              \
+                       pr_info("venus:" fmt, \
+                                       get_debug_level_str(dbg_lvl),   \
+                                       ## arg);        \
+       } while (0)
+
 struct freq_tbl {
        unsigned int load;
        unsigned long freq;
diff --git a/drivers/media/platform/qcom/venus/firmware.c 
b/drivers/media/platform/qcom/venus/firmware.c
index c29acfd..eaf5951 100644
--- a/drivers/media/platform/qcom/venus/firmware.c
+++ b/drivers/media/platform/qcom/venus/firmware.c
@@ -142,7 +142,8 @@ static int venus_boot_no_tz(struct venus_core *core, 
phys_addr_t mem_phys,
                dev_err(dev, "could not map video firmware region\n");
                return ret;
        }
-
+       dprintk(DBG, "%s: Successfully mapped and performed test translation\n",
+               dev_name(dev));
        venus_reset_cpu(core);
 
        return 0;
@@ -258,7 +259,8 @@ int venus_firmware_init(struct venus_core *core)
                dev_err(core->fw.dev, "could not attach device\n");
                goto err_iommu_free;
        }
-
+       dprintk(DBG, "Attached and created mapping for %s\n",
+               dev_name(core->fw.dev));
        core->fw.iommu_domain = iommu_dom;
 
        of_node_put(np);
diff --git a/drivers/media/platform/qcom/venus/helpers.c 
b/drivers/media/platform/qcom/venus/helpers.c
index e436385..9065b44 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -75,6 +75,7 @@ bool venus_helper_check_codec(struct venus_inst *inst, u32 
v4l2_pixfmt)
                codec = HFI_VIDEO_CODEC_HEVC;
                break;
        default:
+               dprintk(WARN, "Unknown format:%x\n", pixfmt);
                return false;
        }
 
@@ -102,8 +103,11 @@ static int venus_helper_queue_dpb_bufs(struct venus_inst 
*inst)
                fdata.buffer_type = buf->type;
 
                ret = hfi_session_process_buf(inst, &fdata);
-               if (ret)
+               if (ret) {
+                       dprintk(ERR, "%s: Failed to queue dpb buf to hfi: %d\n",
+                               __func__, ret);
                        goto fail;
+               }
        }
 
 fail:
@@ -157,6 +161,7 @@ int venus_helper_alloc_dpb_bufs(struct venus_inst *inst)
                return ret;
 
        count = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
+       dprintk(DBG, "buf count min %d", count);
 
        for (i = 0; i < count; i++) {
                buf = kzalloc(sizeof(*buf), GFP_KERNEL);
@@ -174,6 +179,7 @@ int venus_helper_alloc_dpb_bufs(struct venus_inst *inst)
                if (!buf->va) {
                        kfree(buf);
                        ret = -ENOMEM;
+                       dprintk(ERR, "Failed to alloc dma attrs for dpbbufs\n");
                        goto fail;
                }
 
@@ -208,6 +214,7 @@ static int intbufs_set_buffer(struct venus_inst *inst, u32 
type)
        for (i = 0; i < bufreq.count_actual; i++) {
                buf = kzalloc(sizeof(*buf), GFP_KERNEL);
                if (!buf) {
+                       dprintk(ERR, "Out of memory\n");
                        ret = -ENOMEM;
                        goto fail;
                }
@@ -220,6 +227,7 @@ static int intbufs_set_buffer(struct venus_inst *inst, u32 
type)
                                          buf->attrs);
                if (!buf->va) {
                        ret = -ENOMEM;
+                       dprintk(ERR, "Failed to alloc dma attrs for intbufs\n");
                        goto fail;
                }
 
@@ -228,6 +236,8 @@ static int intbufs_set_buffer(struct venus_inst *inst, u32 
type)
                bd.buffer_type = buf->type;
                bd.num_buffers = 1;
                bd.device_addr = buf->da;
+               dprintk(DBG, "Buffer address: %#x\n bufsize: %d, buf_type: %d",
+                       bd.device_addr, bd.buffer_size, bd.buffer_type);
 
                ret = hfi_session_set_buffers(inst, &bd);
                if (ret) {
@@ -380,8 +390,11 @@ static int load_scale_clocks(struct venus_core *core)
 set_freq:
 
        ret = clk_set_rate(clk, freq);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set clock rate %lu clk: %d\n",
+                       freq, ret);
                goto err;
+       }
 
        ret = clk_set_rate(core->core0_clk, freq);
        if (ret)
@@ -459,8 +472,10 @@ static void return_buf_error(struct venus_inst *inst,
        }
 
        ret = hfi_session_process_buf(inst, &fdata);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "%s: Failed qbuf to hfi: %d\n", __func__, ret);
                return ret;
+               }
 
        return 0;
 }
@@ -544,11 +559,15 @@ int venus_helper_get_bufreq(struct venus_inst *inst, u32 
type,
                memset(req, 0, sizeof(*req));
 
        ret = hfi_session_get_property(inst, ptype, &hprop);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed getting buffer requirements: %d", ret);
                return ret;
+               }
 
        ret = -EINVAL;
-
+       dprintk(DBG, "Buffer requirements from HW:\n");
+       dprintk(DBG, "%15s %8s %8s %8s\n",
+               "buffer type", "count", "mincount_fw", "size");
        for (i = 0; i < HFI_BUFFER_TYPE_MAX; i++) {
                if (hprop.bufreq[i].type != type)
                        continue;
@@ -556,6 +575,9 @@ int venus_helper_get_bufreq(struct venus_inst *inst, u32 
type,
                if (req)
                        memcpy(req, &hprop.bufreq[i], sizeof(*req));
                ret = 0;
+               dprintk(DBG, "%8d %8d %8d %8d\n",
+                       req->type, req->count_actual,
+                       req->count_min, req->size);
                break;
        }
 
@@ -730,16 +752,24 @@ int venus_helper_set_num_bufs(struct venus_inst *inst, 
unsigned int input_bufs,
        buf_count.count_actual = input_bufs;
 
        ret = hfi_session_set_property(inst, ptype, &buf_count);
-       if (ret)
+       if (ret) {
+               dprintk(ERR,
+                       "Failed to set actual buffer count %d for buffer type 
%d\n",
+                       buf_count.count_actual, buf_count.type);
                return ret;
 
        buf_count.type = HFI_BUFFER_OUTPUT;
        buf_count.count_actual = output_bufs;
 
        ret = hfi_session_set_property(inst, ptype, &buf_count);
-       if (ret)
+       if (ret) {
+               dprintk(ERR,
+                       "Failed to set actual buffer count %d for buffer type 
%d\n",
+                       buf_count.count_actual, buf_count.type);
                return ret;
-
+       }
+       dprintk(DBG, "output buf: num = %d, input buf = %d\n",
+               output_bufs, input_bufs);
        if (output2_bufs) {
                buf_count.type = HFI_BUFFER_OUTPUT2;
                buf_count.count_actual = output2_bufs;
@@ -776,8 +806,11 @@ int venus_helper_set_color_format(struct venus_inst *inst, 
u32 pixfmt)
                return -EINVAL;
 
        hfi_format = to_hfi_raw_fmt(pixfmt);
-       if (!hfi_format)
+       if (!hfi_format) {
+               dprintk(ERR, "Using unsupported colorformat %#x\n",
+                       pixfmt);
                return -EINVAL;
+       }
 
        return venus_helper_set_raw_format(inst, hfi_format, buftype);
 }
diff --git a/drivers/media/platform/qcom/venus/hfi.c 
b/drivers/media/platform/qcom/venus/hfi.c
index 2420782..80bfb47 100644
--- a/drivers/media/platform/qcom/venus/hfi.c
+++ b/drivers/media/platform/qcom/venus/hfi.c
@@ -52,6 +52,7 @@ static u32 to_codec_type(u32 pixfmt)
        case V4L2_PIX_FMT_HEVC:
                return HFI_VIDEO_CODEC_HEVC;
        default:
+               dprintk(WARN, "Wrong codec: fmt %x\n", pixfmt);
                return 0;
        }
 }
@@ -62,8 +63,11 @@ int hfi_core_init(struct venus_core *core)
 
        mutex_lock(&core->lock);
 
-       if (core->state >= CORE_INIT)
+       if (core->state >= CORE_INIT) {
+               dprintk(INFO, "Video core is already in state: %d\n",
+                       core->state);
                goto unlock;
+       }
 
        reinit_completion(&core->done);
 
@@ -71,8 +75,11 @@ int hfi_core_init(struct venus_core *core)
        if (ret)
                goto unlock;
 
+       dprintk(DBG, "Waiting for HFI_MSG_SYS_INIT\n");
        ret = wait_for_completion_timeout(&core->done, TIMEOUT);
        if (!ret) {
+               dprintk(ERR, "%s: Wait interrupted or timed out\n",
+                       __func__);
                ret = -ETIMEDOUT;
                goto unlock;
        }
@@ -85,6 +92,7 @@ int hfi_core_init(struct venus_core *core)
        }
 
        core->state = CORE_INIT;
+       dprintk(DBG, "SYS_INIT_DONE!!!\n");
 unlock:
        mutex_unlock(&core->lock);
        return ret;
@@ -207,13 +215,21 @@ int hfi_session_init(struct venus_inst *inst, u32 pixfmt)
        const struct hfi_ops *ops = core->ops;
        int ret;
 
+       if (inst->state >= INST_INIT && inst->state < INST_STOP) {
+               dprintk(INFO, "inst: %pK is already in state: %d\n",
+                       inst, inst->state);
+               return 0;
+               }
        inst->hfi_codec = to_codec_type(pixfmt);
        reinit_completion(&inst->done);
 
+       dprintk(DBG, "%s: inst %pK\n", __func__, inst);
        ret = ops->session_init(inst, inst->session_type, inst->hfi_codec);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to init session, type = %d\n",
+                       inst->session_type);
                return ret;
-
+       }
        ret = wait_session_msg(inst);
        if (ret)
                return ret;
@@ -241,17 +257,27 @@ int hfi_session_deinit(struct venus_inst *inst)
        const struct hfi_ops *ops = inst->core->ops;
        int ret;
 
-       if (inst->state == INST_UNINIT)
+       if (inst->state == INST_UNINIT) {
+               dprintk(INFO,
+                       "inst: %pK is already in state: %d\n",
+               inst, inst->state);
                return 0;
+       }
 
-       if (inst->state < INST_INIT)
+       if (inst->state < INST_INIT) {
+               dprintk(ERR, "%s: inst %pK is in invalid state\n",
+                       __func__, inst);
                return -EINVAL;
+       }
 
        reinit_completion(&inst->done);
 
+       dprintk(DBG, "%s: inst %pK\n", __func__, inst);
        ret = ops->session_end(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to send close\n");
                return ret;
+               }
 
        ret = wait_session_msg(inst);
        if (ret)
@@ -268,14 +294,20 @@ int hfi_session_start(struct venus_inst *inst)
        const struct hfi_ops *ops = inst->core->ops;
        int ret;
 
-       if (inst->state != INST_LOAD_RESOURCES)
+       if (inst->state != INST_LOAD_RESOURCES) {
+               dprintk(ERR,
+                       "%s: inst %pK is in invalid state\n",
+                       __func__, inst);
                return -EINVAL;
+       }
 
        reinit_completion(&inst->done);
 
        ret = ops->session_start(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to send start\n");
                return ret;
+               }
 
        ret = wait_session_msg(inst);
        if (ret)
@@ -291,11 +323,16 @@ int hfi_session_stop(struct venus_inst *inst)
        const struct hfi_ops *ops = inst->core->ops;
        int ret;
 
-       if (inst->state != INST_START)
+       if (inst->state != INST_START) {
+               dprintk(ERR,
+                       "%s: inst %pK is in invalid state\n",
+                       __func__, inst);
                return -EINVAL;
+       }
 
        reinit_completion(&inst->done);
 
+       dprintk(DBG, "%s: inst %pK\n", __func__, inst);
        ret = ops->session_stop(inst);
        if (ret)
                return ret;
@@ -328,12 +365,17 @@ int hfi_session_abort(struct venus_inst *inst)
        reinit_completion(&inst->done);
 
        ret = ops->session_abort(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "session_abort failed ret: %d\n", ret);
                return ret;
+       }
 
        ret = wait_session_msg(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "%s: inst %pK session %x abort timed out\n",
+                       __func__, inst, inst->session_type);
                return ret;
+       }
 
        return 0;
 }
@@ -343,15 +385,21 @@ int hfi_session_load_res(struct venus_inst *inst)
        const struct hfi_ops *ops = inst->core->ops;
        int ret;
 
-       if (inst->state != INST_INIT)
+       if (inst->state != INST_INIT) {
+               dprintk(ERR,
+                       "%s: inst %pK is in invalid state\n",
+                       __func__, inst);
                return -EINVAL;
+       }
 
        reinit_completion(&inst->done);
 
+       dprintk(DBG, "%s: inst %pK\n", __func__, inst);
        ret = ops->session_load_res(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to send load resources\n");
                return ret;
-
+       }
        ret = wait_session_msg(inst);
        if (ret)
                return ret;
@@ -366,14 +414,21 @@ int hfi_session_unload_res(struct venus_inst *inst)
        const struct hfi_ops *ops = inst->core->ops;
        int ret;
 
-       if (inst->state != INST_STOP)
+       if (inst->state != INST_STOP) {
+               dprintk(ERR,
+                       "%s: inst %pK is in invalid state\n",
+                       __func__, inst);
                return -EINVAL;
+               }
 
        reinit_completion(&inst->done);
 
+       dprintk(DBG, "%s: inst %pK\n", __func__, inst);
        ret = ops->session_release_res(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to send release resources\n");
                return ret;
+               }
 
        ret = wait_session_msg(inst);
        if (ret)
@@ -461,8 +516,10 @@ int hfi_session_set_property(struct venus_inst *inst, u32 
ptype, void *pdata)
 {
        const struct hfi_ops *ops = inst->core->ops;
 
-       if (inst->state < INST_INIT || inst->state >= INST_STOP)
+       if (inst->state < INST_INIT || inst->state >= INST_STOP) {
+               dprintk(ERR, "Not in proper state to set property\n");
                return -EINVAL;
+               }
 
        return ops->session_set_property(inst, ptype, pdata);
 }
@@ -478,6 +535,8 @@ int hfi_session_process_buf(struct venus_inst *inst, struct 
hfi_frame_data *fd)
                 fd->buffer_type == HFI_BUFFER_OUTPUT2)
                return ops->session_ftb(inst, fd);
 
+       dprintk(ERR, "%s: invalid qbuf type %d:\n", __func__,
+               fd->buffer_type);
        return -EINVAL;
 }
 EXPORT_SYMBOL_GPL(hfi_session_process_buf);
diff --git a/drivers/media/platform/qcom/venus/hfi_cmds.c 
b/drivers/media/platform/qcom/venus/hfi_cmds.c
index 87a4414..3c451a7 100644
--- a/drivers/media/platform/qcom/venus/hfi_cmds.c
+++ b/drivers/media/platform/qcom/venus/hfi_cmds.c
@@ -16,6 +16,7 @@
 #include <linux/hash.h>
 
 #include "hfi_cmds.h"
+#include "core.h"
 
 static enum hfi_version hfi_ver;
 
@@ -161,8 +162,10 @@ void pkt_sys_image_version(struct hfi_sys_get_property_pkt 
*pkt)
 int pkt_session_init(struct hfi_session_init_pkt *pkt, void *cookie,
                     u32 session_type, u32 codec)
 {
-       if (!pkt || !cookie || !codec)
+       if (!pkt || !cookie || !codec) {
+               dprintk(ERR, "%s invalid parameters\n", __func__);
                return -EINVAL;
+               }
 
        pkt->shdr.hdr.size = sizeof(*pkt);
        pkt->shdr.hdr.pkt_type = HFI_CMD_SYS_SESSION_INIT;
@@ -185,8 +188,10 @@ int pkt_session_set_buffers(struct 
hfi_session_set_buffers_pkt *pkt,
 {
        unsigned int i;
 
-       if (!cookie || !pkt || !bd)
+       if (!cookie || !pkt || !bd) {
+               dprintk(ERR, "%s - invalid params\n", __func__);
                return -EINVAL;
+               }
 
        pkt->shdr.hdr.pkt_type = HFI_CMD_SESSION_SET_BUFFERS;
        pkt->shdr.session_id = hash32_ptr(cookie);
@@ -215,7 +220,8 @@ int pkt_session_set_buffers(struct 
hfi_session_set_buffers_pkt *pkt,
        }
 
        pkt->buffer_type = bd->buffer_type;
-
+       dprintk(DBG, "buftype:%d buffer addr: %x\n",
+               pkt->buffer_type, bd->device_addr);
        return 0;
 }
 
@@ -263,9 +269,11 @@ int pkt_session_unset_buffers(struct 
hfi_session_release_buffer_pkt *pkt,
 int pkt_session_etb_decoder(struct hfi_session_empty_buffer_compressed_pkt 
*pkt,
                            void *cookie, struct hfi_frame_data *in_frame)
 {
-       if (!cookie || !in_frame->device_addr)
+       if (!cookie || !in_frame->device_addr) {
+               dprintk(ERR, "%s: invalid params addr: %#x\n",
+                       __func__, in_frame->device_addr);
                return -EINVAL;
-
+       }
        pkt->shdr.hdr.size = sizeof(*pkt);
        pkt->shdr.hdr.pkt_type = HFI_CMD_SESSION_EMPTY_BUFFER;
        pkt->shdr.session_id = hash32_ptr(cookie);
@@ -287,8 +295,11 @@ int pkt_session_etb_encoder(
                struct hfi_session_empty_buffer_uncompressed_plane0_pkt *pkt,
                void *cookie, struct hfi_frame_data *in_frame)
 {
-       if (!cookie || !in_frame->device_addr)
+       if (!cookie || !in_frame->device_addr) {
+               dprintk(ERR, "%s: invalid params addr: %#x\n",
+                       __func__, in_frame->device_addr);
                return -EINVAL;
+       }
 
        pkt->shdr.hdr.size = sizeof(*pkt);
        pkt->shdr.hdr.pkt_type = HFI_CMD_SESSION_EMPTY_BUFFER;
@@ -312,8 +323,11 @@ int pkt_session_etb_encoder(
 int pkt_session_ftb(struct hfi_session_fill_buffer_pkt *pkt, void *cookie,
                    struct hfi_frame_data *out_frame)
 {
-       if (!cookie || !out_frame || !out_frame->device_addr)
+       if (!cookie || !out_frame || !out_frame->device_addr) {
+               dprintk(ERR, "%s: invalid params addr: %#x\n",
+                       __func__, out_frame->device_addr);
                return -EINVAL;
+       }
 
        pkt->shdr.hdr.size = sizeof(*pkt);
        pkt->shdr.hdr.pkt_type = HFI_CMD_SESSION_FILL_BUFFER;
@@ -339,8 +353,11 @@ int pkt_session_parse_seq_header(
                struct hfi_session_parse_sequence_header_pkt *pkt,
                void *cookie, u32 seq_hdr, u32 seq_hdr_len)
 {
-       if (!cookie || !seq_hdr || !seq_hdr_len)
+       if (!cookie || !seq_hdr || !seq_hdr_len) {
+               dprintk(ERR, "%s: invalid params hdr: %d, hdr_len:%d\n",
+                       __func__, seq_hdr, seq_hdr_len);
                return -EINVAL;
+       }
 
        pkt->shdr.hdr.size = sizeof(*pkt);
        pkt->shdr.hdr.pkt_type = HFI_CMD_SESSION_PARSE_SEQUENCE_HEADER;
diff --git a/drivers/media/platform/qcom/venus/hfi_msgs.c 
b/drivers/media/platform/qcom/venus/hfi_msgs.c
index 0ecdaa1..b6ea2f9 100644
--- a/drivers/media/platform/qcom/venus/hfi_msgs.c
+++ b/drivers/media/platform/qcom/venus/hfi_msgs.c
@@ -238,9 +238,14 @@ static void hfi_sys_init_done(struct venus_core *core, 
struct venus_inst *inst,
        }
 
        error = hfi_parser(core, inst, pkt->data, rem_bytes);
+       dprintk(DBG,
+               "supported_codecs[%d]: enc = %#x, dec = %#x\n",
+               core->codecs_count, core->enc_codecs,
+               core->dec_codecs);
 
 done:
        core->error = error;
+       dprintk(INFO, "sys init ret: %d", core->error);
        complete(&core->done);
 }
 
diff --git a/drivers/media/platform/qcom/venus/vdec.c 
b/drivers/media/platform/qcom/venus/vdec.c
index 282de21..7f65e10 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -97,9 +97,10 @@
                        break;
        }
 
-       if (i == size || fmt[i].type != type)
+       if (i == size || fmt[i].type != type) {
+               dprintk(INFO, "Format not found\n");
                return NULL;
-
+       }
        if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
            !venus_helper_check_codec(inst, fmt[i].pixfmt))
                return NULL;
@@ -130,8 +131,10 @@
                        k++;
        }
 
-       if (i == size)
+       if (i == size) {
+               dprintk(INFO, "Format not found by index\n");
                return NULL;
+               }
 
        return &fmt[i];
 }
@@ -236,6 +239,13 @@ static int vdec_g_fmt(struct file *file, void *fh, struct 
v4l2_format *f)
 
        vdec_try_fmt_common(inst, f);
 
+       dprintk(DBG,
+               "g_fmt: %x : type %d wxh %dx%d pixelfmt %#x num_planes %d 
size[0] %d in_reconfig %d\n",
+               inst->session_type, f->type,
+               f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+               f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.num_planes,
+               f->fmt.pix_mp.plane_fmt[0].sizeimage, inst->reconfig);
+
        return 0;
 }
 
@@ -292,7 +302,8 @@ static int vdec_s_fmt(struct file *file, void *fh, struct 
v4l2_format *f)
                inst->fmt_out = fmt;
        else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
                inst->fmt_cap = fmt;
-
+       dprintk(INFO, "s_fmt: inst width: %d height: %d\n",
+               inst->width, inst->height);
        return 0;
 }
 
@@ -372,8 +383,10 @@ static int vdec_s_parm(struct file *file, void *fh, struct 
v4l2_streamparm *a)
        u64 us_per_frame, fps;
 
        if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
-           a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+           a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+               dprintk(ERR, "Unknown buffer type %d\n", a->type);
                return -EINVAL;
+               }
 
        memset(cap->reserved, 0, sizeof(cap->reserved));
        if (!timeperframe->denominator)
@@ -386,8 +399,11 @@ static int vdec_s_parm(struct file *file, void *fh, struct 
v4l2_streamparm *a)
        us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
        do_div(us_per_frame, timeperframe->denominator);
 
-       if (!us_per_frame)
+       if (!us_per_frame) {
+               dprintk(ERR,
+                       "Failed to scale clocks : time between frames is 0\n");
                return -EINVAL;
+       }
 
        fps = (u64)USEC_PER_SEC;
        do_div(fps, us_per_frame);
@@ -395,6 +411,7 @@ static int vdec_s_parm(struct file *file, void *fh, struct 
v4l2_streamparm *a)
        inst->fps = fps;
        inst->timeperframe = *timeperframe;
 
+       dprintk(INFO, "dec: reported fps for %pK: %d\n", inst, inst->fps);
        return 0;
 }
 
@@ -439,6 +456,7 @@ static int vdec_subscribe_event(struct v4l2_fh *fh,
        case V4L2_EVENT_CTRL:
                return v4l2_ctrl_subscribe_event(fh, sub);
        default:
+               dprintk(ERR, "Failed to subscribe event\n");
                return -EINVAL;
        }
 }
@@ -452,6 +470,7 @@ static int vdec_subscribe_event(struct v4l2_fh *fh,
                        return -EINVAL;
                break;
        default:
+               dprintk(ERR, "Invalid decoder cmd\n");
                return -EINVAL;
        }
 
@@ -527,8 +546,10 @@ static int vdec_set_properties(struct venus_inst *inst)
        if (ctr->post_loop_deb_mode) {
                ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
                ret = hfi_session_set_property(inst, ptype, &en);
-               if (ret)
+               if (ret) {
+                       dprintk(ERR, "Failed to set dec prop: 0x%x", ptype);
                        return ret;
+                       }
        }
 
        return 0;
@@ -548,18 +569,24 @@ static int vdec_output_conf(struct venus_inst *inst)
        int ret;
 
        ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set workmode 2\n");
                return ret;
+       }
 
        ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_1);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set core usage\n");
                return ret;
+               }
 
        if (core->res->hfi_version == HFI_VERSION_1XX) {
                ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
                ret = hfi_session_set_property(inst, ptype, &en);
-               if (ret)
+               if (ret) {
+                       dprintk(ERR, "Failed to set dec prop: 0x%x", ptype);
                        return ret;
+                       }
        }
 
        /* Force searching UBWC formats for bigger then HD resolutions */
@@ -572,8 +599,10 @@ static int vdec_output_conf(struct venus_inst *inst)
 
        ret = venus_helper_get_out_fmts(inst, inst->fmt_cap->pixfmt, &out_fmt,
                                        &out2_fmt, ubwc);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to get outfmt:%x", inst->fmt_cap->pixfmt);
                return ret;
+               }
 
        inst->output_buf_size =
                        venus_helper_get_framesz_raw(out_fmt, width, height);
@@ -599,23 +628,34 @@ static int vdec_output_conf(struct venus_inst *inst)
 
        ret = venus_helper_set_raw_format(inst, inst->opb_fmt,
                                          inst->opb_buftype);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set raw fmt opb fmt:0x%x",
+                       inst->opb_fmt);
                return ret;
+       }
 
        if (inst->dpb_fmt) {
                ret = venus_helper_set_multistream(inst, false, true);
-               if (ret)
+               if (ret) {
+                       dprintk(ERR, "Failed to set multistream");
                        return ret;
+               }
 
                ret = venus_helper_set_raw_format(inst, inst->dpb_fmt,
                                                  inst->dpb_buftype);
-               if (ret)
+               if (ret) {
+                       dprintk(ERR, "Failed to set raw fmt dpb fmt:0x%x",
+                               inst->dpb_fmt);
                        return ret;
-
+                       }
                ret = venus_helper_set_output_resolution(inst, width, height,
                                                         HFI_BUFFER_OUTPUT2);
-               if (ret)
+               if (ret) {
+                       dprintk(ERR,
+                               "Failed to set o/p resolution width:%d, 
height:%d",
+                               width, height);
                        return ret;
+               }
        }
 
        if (IS_V3(core) || IS_V4(core)) {
@@ -623,23 +663,32 @@ static int vdec_output_conf(struct venus_inst *inst)
                        ret = venus_helper_set_bufsize(inst,
                                                       inst->output2_buf_size,
                                                       HFI_BUFFER_OUTPUT2);
-                       if (ret)
+                       if (ret) {
+                               dprintk(ERR,
+                                       "Failed to set bufsize: %d for o/p2",
+                                       inst->output2_buf_size);
                                return ret;
+                       }
                }
 
                if (inst->output_buf_size) {
                        ret = venus_helper_set_bufsize(inst,
                                                       inst->output_buf_size,
                                                       HFI_BUFFER_OUTPUT);
-                       if (ret)
+                       if (ret) {
+                               dprintk(ERR,
+                                       "Failed to set bufsize: %d for o/p",
+                                               inst->output_buf_size);
                                return ret;
+                       }
                }
        }
 
        ret = venus_helper_set_dyn_bufmode(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set dynamic buffer mode\n");
                return ret;
-
+               }
        return 0;
 }
 
@@ -648,17 +697,26 @@ static int vdec_init_session(struct venus_inst *inst)
        int ret;
 
        ret = hfi_session_init(inst, inst->fmt_out->pixfmt);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to init firmware session\n");
                return ret;
+       }
 
        ret = venus_helper_set_input_resolution(inst, inst->out_width,
                                                inst->out_height);
-       if (ret)
+       if (ret) {
+               dprintk(ERR,
+                       "Failed to set i/p resolution width:%d, height:%d",
+                       inst->out_width, inst->out_height);
                goto deinit;
+       }
 
        ret = venus_helper_set_color_format(inst, inst->fmt_cap->pixfmt);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set color format fmt:0x%x",
+                       inst->fmt_cap->pixfmt);
                goto deinit;
+               }
 
        return 0;
 deinit:
@@ -676,18 +734,24 @@ static int vdec_num_buffers(struct venus_inst *inst, 
unsigned int *in_num,
        *in_num = *out_num = 0;
 
        ret = vdec_init_session(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to init decoder session");
                return ret;
+               }
 
        ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to get bufreq on i/p");
                goto deinit;
+               }
 
        *in_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
 
        ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to get bufreq on i/p");
                goto deinit;
+       }
 
        *out_num = HFI_BUFREQ_COUNT_MIN(&bufreq, ver);
 
@@ -728,8 +792,10 @@ static int vdec_queue_setup(struct vb2_queue *q,
        }
 
        ret = vdec_num_buffers(inst, &in_num, &out_num);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed : No buffer requirements\n");
                return ret;
+               }
 
        switch (q->type) {
        case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
@@ -752,10 +818,14 @@ static int vdec_queue_setup(struct vb2_queue *q,
                inst->num_output_bufs = *num_buffers;
                break;
        default:
+               dprintk(ERR, "Invalid q type = %d\n", q->type);
                ret = -EINVAL;
                break;
        }
-
+       dprintk(DBG,
+               "%s: %d : type %d num_buffers %d num_planes %d sizes[0] %d\n",
+               __func__, inst->session_type, q->type, *num_buffers,
+               *num_planes, sizes[0]);
        return ret;
 }
 
@@ -765,24 +835,45 @@ static int vdec_verify_conf(struct venus_inst *inst)
        struct hfi_buffer_requirements bufreq;
        int ret;
 
-       if (!inst->num_input_bufs || !inst->num_output_bufs)
+       if (!inst->num_input_bufs || !inst->num_output_bufs) {
+               dprintk(ERR, "Failed: insuffice bufs i/p_buf: %d o/p_buf: %d",
+                       inst->num_input_bufs, inst->num_output_bufs);
                return -EINVAL;
+               }
 
        ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to get bufreq o/p\n");
                return ret;
-
+               }
+       dprintk(DBG, "Verifying Buffer: %d\n", bufreq.type);
        if (inst->num_output_bufs < bufreq.count_actual ||
-           inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
+           inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver)) {
+               dprintk(ERR,
+                       "Invalid data : Counts mismatch\n");
+               dprintk(ERR, "num of output bufs = %d ",
+                       inst->num_output_bufs);
+               dprintk(ERR, "actual buf count = %d ",
+                       bufreq.count_actual);
+               dprintk(ERR, "Min Actual Count = %d\n",
+                       HFI_BUFREQ_COUNT_MIN(&bufreq, ver));
                return -EINVAL;
-
+       }
+       dprintk(DBG, "Verifying Buffer: %d\n", bufreq.type);
        ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to get bufreq i/p\n");
                return ret;
-
-       if (inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
+               }
+       if (inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver)) {
+               dprintk(ERR,
+                       "Invalid data : Counts mismatch\n");
+               dprintk(ERR, "num of input bufs = %d ",
+                       inst->num_input_bufs);
+               dprintk(ERR, "Min Actual Count = %d\n",
+                       HFI_BUFREQ_COUNT_MIN(&bufreq, ver));
                return -EINVAL;
-
+       }
        return 0;
 }
 
@@ -791,6 +882,9 @@ static int vdec_start_streaming(struct vb2_queue *q, 
unsigned int count)
        struct venus_inst *inst = vb2_get_drv_priv(q);
        int ret;
 
+       dprintk(DBG, "Streamon called on: %d capability for inst: %pK\n",
+               q->type, inst);
+
        mutex_lock(&inst->lock);
 
        if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
@@ -894,8 +988,12 @@ static void vdec_buf_done(struct venus_inst *inst, 
unsigned int buf_type,
                if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
                        const struct v4l2_event ev = { .type = V4L2_EVENT_EOS };
 
+                       dprintk(DBG, "Received EOS buffer");
                        v4l2_event_queue_fh(&inst->fh, &ev);
                }
+               dprintk(INFO,
+                       "buf done: data_offset = %d; bytesused = %d; length = 
%d\n",
+                       vb->planes[0].data_offset, vb->planes[0].length);
        } else {
                vbuf->sequence = inst->sequence_out++;
        }
@@ -1021,8 +1119,10 @@ static int vdec_open(struct file *file)
        int ret;
 
        inst = kzalloc(sizeof(*inst), GFP_KERNEL);
-       if (!inst)
+       if (!inst) {
+               dprintk(ERR, "dec: Failed to create video instance");
                return -ENOMEM;
+               }
 
        INIT_LIST_HEAD(&inst->dpbbufs);
        INIT_LIST_HEAD(&inst->registeredbufs);
@@ -1041,12 +1141,16 @@ static int vdec_open(struct file *file)
                goto err_free_inst;
 
        ret = vdec_ctrl_init(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed control initialization\n");
                goto err_put_sync;
+       }
 
        ret = hfi_session_create(inst, &vdec_hfi_ops);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to create session\n");
                goto err_ctrl_deinit;
+       }
 
        vdec_inst_init(inst);
 
@@ -1232,6 +1336,7 @@ static __maybe_unused int vdec_runtime_resume(struct 
device *dev)
 err_unprepare_core0:
        clk_disable_unprepare(core->core0_clk);
 err_power_disable:
+       dprintk(ERR, "Failed to enable core0 clk\n");
        venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
        return ret;
 }
diff --git a/drivers/media/platform/qcom/venus/vdec_ctrls.c 
b/drivers/media/platform/qcom/venus/vdec_ctrls.c
index f4604b0..bfc6904 100644
--- a/drivers/media/platform/qcom/venus/vdec_ctrls.c
+++ b/drivers/media/platform/qcom/venus/vdec_ctrls.c
@@ -91,8 +91,11 @@ int vdec_ctrl_init(struct venus_inst *inst)
        int ret;
 
        ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 7);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "CTRL ERR: Control handler init failed, %d\n",
+                       inst->ctrl_handler.error);
                return ret;
+       }
 
        ctrl = v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &vdec_ctrl_ops,
                V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
@@ -147,6 +150,8 @@ int vdec_ctrl_init(struct venus_inst *inst)
 
        ret = inst->ctrl_handler.error;
        if (ret) {
+               dprintk(ERR, "Error adding ctrl to ctrl handle, %d\n",
+                       inst->ctrl_handler.error);
                v4l2_ctrl_handler_free(&inst->ctrl_handler);
                return ret;
        }
diff --git a/drivers/media/platform/qcom/venus/venc.c 
b/drivers/media/platform/qcom/venus/venc.c
index 32cff29..0151b01 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -79,9 +79,10 @@
                        break;
        }
 
-       if (i == size || fmt[i].type != type)
+       if (i == size || fmt[i].type != type) {
+               dprintk(INFO, "Format not found\n");
                return NULL;
-
+       }
        if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
            !venus_helper_check_codec(inst, fmt[i].pixfmt))
                return NULL;
@@ -112,9 +113,10 @@
                        k++;
        }
 
-       if (i == size)
+       if (i == size) {
+               dprintk(INFO, "Format not found by index\n");
                return NULL;
-
+       }
        return &fmt[i];
 }
 
@@ -289,8 +291,10 @@ static int venc_enum_fmt(struct file *file, void *fh, 
struct v4l2_fmtdesc *f)
 
        memset(f->reserved, 0, sizeof(f->reserved));
 
-       if (!fmt)
+       if (!fmt) {
+               dprintk(DBG, "No more formats found\n");
                return -EINVAL;
+       }
 
        f->pixelformat = fmt->pixfmt;
 
@@ -367,8 +371,11 @@ static int venc_s_fmt(struct file *file, void *fh, struct 
v4l2_format *f)
        orig_pixmp = *pixmp;
 
        fmt = venc_try_fmt_common(inst, f);
-       if (!fmt)
+       if (!fmt) {
+               dprintk(ERR, "Format: %d not supported\n",
+                       f->fmt.pix_mp.pixelformat);
                return -EINVAL;
+       }
 
        if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
                pixfmt_out = pixmp->pixelformat;
@@ -410,7 +417,8 @@ static int venc_s_fmt(struct file *file, void *fh, struct 
v4l2_format *f)
                inst->fmt_out = fmt;
        else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
                inst->fmt_cap = fmt;
-
+       dprintk(INFO, "s_fmt: inst width: %d height: %d\n",
+               inst->width, inst->height);
        return 0;
 }
 
@@ -443,6 +451,13 @@ static int venc_g_fmt(struct file *file, void *fh, struct 
v4l2_format *f)
 
        venc_try_fmt_common(inst, f);
 
+       dprintk(DBG,
+               "g_fmt: %x : type %d wxh %dx%d pixelfmt %#x num_planes %d 
size[0] %d in_reconfig %d\n",
+               inst->session_type, f->type,
+               f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+               f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.num_planes,
+               f->fmt.pix_mp.plane_fmt[0].sizeimage, inst->reconfig);
+
        return 0;
 }
 
@@ -504,8 +519,10 @@ static int venc_s_parm(struct file *file, void *fh, struct 
v4l2_streamparm *a)
        u64 us_per_frame, fps;
 
        if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
-           a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+           a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+               dprintk(ERR, "Unknown buffer type %d\n", a->type);
                return -EINVAL;
+       }
 
        memset(out->reserved, 0, sizeof(out->reserved));
 
@@ -519,8 +536,11 @@ static int venc_s_parm(struct file *file, void *fh, struct 
v4l2_streamparm *a)
        us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
        do_div(us_per_frame, timeperframe->denominator);
 
-       if (!us_per_frame)
+       if (!us_per_frame) {
+               dprintk(ERR,
+                       "Failed to scale clocks : time between frames is 0\n");
                return -EINVAL;
+               }
 
        fps = (u64)USEC_PER_SEC;
        do_div(fps, us_per_frame);
@@ -528,6 +548,7 @@ static int venc_s_parm(struct file *file, void *fh, struct 
v4l2_streamparm *a)
        inst->timeperframe = *timeperframe;
        inst->fps = fps;
 
+       dprintk(INFO, "enc: reported fps for %pK: %d\n", inst, inst->fps);
        return 0;
 }
 
@@ -657,20 +678,26 @@ static int venc_set_properties(struct venus_inst *inst)
        int ret;
 
        ret = venus_helper_set_work_mode(inst, VIDC_WORK_MODE_2);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set workmode 2\n");
                return ret;
+       }
 
        ret = venus_helper_set_core_usage(inst, VIDC_CORE_ID_2);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set core usage\n");
                return ret;
+               }
 
        ptype = HFI_PROPERTY_CONFIG_FRAME_RATE;
        frate.buffer_type = HFI_BUFFER_OUTPUT;
        frate.framerate = inst->fps * (1 << 16);
 
        ret = hfi_session_set_property(inst, ptype, &frate);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set core usage\n");
                return ret;
+               }
 
        if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264) {
                struct hfi_h264_vui_timing_info info;
@@ -829,28 +856,41 @@ static int venc_init_session(struct venus_inst *inst)
        int ret;
 
        ret = hfi_session_init(inst, inst->fmt_cap->pixfmt);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to init firmware session\n");
                return ret;
+       }
 
        ret = venus_helper_set_input_resolution(inst, inst->width,
                                                inst->height);
-       if (ret)
+       if (ret) {
+               dprintk(ERR,
+                       "Failed to set i/p resolution width: %d, height: %d",
+                       inst->width, inst->height);
                goto deinit;
+       }
 
        ret = venus_helper_set_output_resolution(inst, inst->width,
                                                 inst->height,
                                                 HFI_BUFFER_OUTPUT);
-       if (ret)
+       if (ret) {
+               dprintk(ERR,
+                       "Failed to set o/p resolution width: %d, height: %d",
+                       inst->width, inst->height);
                goto deinit;
+       }
 
        ret = venus_helper_set_color_format(inst, inst->fmt_out->pixfmt);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set color format");
                goto deinit;
+               }
 
        ret = venc_set_properties(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to set enc properties");
                goto deinit;
-
+       }
        return 0;
 deinit:
        hfi_session_deinit(inst);
@@ -863,8 +903,10 @@ static int venc_out_num_buffers(struct venus_inst *inst, 
unsigned int *num)
        int ret;
 
        ret = venc_init_session(inst);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to init encoder session");
                return ret;
+               }
 
        ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
 
@@ -908,9 +950,12 @@ static int venc_queue_setup(struct vb2_queue *q,
                *num_planes = inst->fmt_out->num_planes;
 
                ret = venc_out_num_buffers(inst, &num);
-               if (ret)
+               if (ret) {
+                       dprintk(ERR,
+                               "Failed : No buffer requirements : %x\n",
+                               HFI_BUFFER_INPUT);
                        break;
-
+               }
                num = max(num, min);
                *num_buffers = max(*num_buffers, num);
                inst->num_input_bufs = *num_buffers;
@@ -930,10 +975,15 @@ static int venc_queue_setup(struct vb2_queue *q,
                inst->output_buf_size = sizes[0];
                break;
        default:
+               dprintk(ERR, "Invalid q type = %d\n", q->type);
                ret = -EINVAL;
                break;
        }
 
+       dprintk(DBG,
+               "queue_setup: %d : type %d num_buffers %d num_planes %d 
sizes[0] %d\n",
+               inst->session_type, q->type, *num_buffers,
+               *num_planes, sizes[0]);
        return ret;
 }
 
@@ -943,25 +993,52 @@ static int venc_verify_conf(struct venus_inst *inst)
        struct hfi_buffer_requirements bufreq;
        int ret;
 
-       if (!inst->num_input_bufs || !inst->num_output_bufs)
+       if (!inst->num_input_bufs || !inst->num_output_bufs) {
+               dprintk(ERR,
+                       "Failed with insufficient bufs i/p_buf: %d o/p_buf: %d",
+                       inst->num_input_bufs, inst->num_output_bufs);
                return -EINVAL;
+       }
 
        ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to get bufreq o/p\n");
                return ret;
+               }
+       dprintk(DBG, "Verifying Buffer: %d\n", bufreq.type);
 
        if (inst->num_output_bufs < bufreq.count_actual ||
-           inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
+           inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver)) {
+               dprintk(ERR,
+                       "Invalid data : Counts mismatch\n");
+               dprintk(ERR, "num of output bufs = %d ",
+                       inst->num_output_bufs);
+               dprintk(ERR, "actual buf count = %d ",
+                       bufreq.count_actual);
+               dprintk(ERR, "Min Actual Count = %d\n",
+                       HFI_BUFREQ_COUNT_MIN(&bufreq, ver));
                return -EINVAL;
+               }
 
+       dprintk(DBG, "Verifying Buffer: %d\n", bufreq.type);
        ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "Failed to get bufreq i/p\n");
                return ret;
+               }
 
        if (inst->num_input_bufs < bufreq.count_actual ||
-           inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
+           inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver)) {
+               dprintk(ERR,
+                       "Invalid data : Counts mismatch\n");
+               dprintk(ERR, "num of input bufs = %d ",
+                       inst->num_output_bufs);
+               dprintk(ERR, "actual buf count = %d ",
+                       bufreq.count_actual);
+               dprintk(ERR, "Min Actual Count = %d\n",
+                       HFI_BUFREQ_COUNT_MIN(&bufreq, ver));
                return -EINVAL;
-
+               }
        return 0;
 }
 
@@ -972,6 +1049,9 @@ static int venc_start_streaming(struct vb2_queue *q, 
unsigned int count)
 
        mutex_lock(&inst->lock);
 
+       dprintk(DBG, "Streamon called on: %d capability for inst: %pK\n",
+               q->type, inst);
+
        if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
                inst->streamon_out = 1;
        else
@@ -1148,8 +1228,10 @@ static int venc_open(struct file *file)
        int ret;
 
        inst = kzalloc(sizeof(*inst), GFP_KERNEL);
-       if (!inst)
+       if (!inst) {
+               dprintk(ERR, "enc: Failed to create video instance");
                return -ENOMEM;
+       }
 
        INIT_LIST_HEAD(&inst->dpbbufs);
        INIT_LIST_HEAD(&inst->registeredbufs);
@@ -1358,6 +1440,7 @@ static __maybe_unused int venc_runtime_resume(struct 
device *dev)
 err_unprepare_core1:
        clk_disable_unprepare(core->core1_clk);
 err_power_disable:
+       dprintk(ERR, "Failed to enable core1 clk");
        venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, false);
        return ret;
 }
diff --git a/drivers/media/platform/qcom/venus/venc_ctrls.c 
b/drivers/media/platform/qcom/venus/venc_ctrls.c
index ac1e1d2..dbbec61 100644
--- a/drivers/media/platform/qcom/venus/venc_ctrls.c
+++ b/drivers/media/platform/qcom/venus/venc_ctrls.c
@@ -203,6 +203,7 @@ static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
                mutex_unlock(&inst->lock);
                break;
        default:
+               dprintk(ERR, "Unsupported ctrl: %x\n", ctrl->id);
                return -EINVAL;
        }
 
@@ -218,9 +219,11 @@ int venc_ctrl_init(struct venus_inst *inst)
        int ret;
 
        ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 28);
-       if (ret)
+       if (ret) {
+               dprintk(ERR, "CTRL ERR: Control handler init failed, %d\n",
+                       inst->ctrl_handler.error);
                return ret;
-
+       }
        v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
                V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
                V4L2_MPEG_VIDEO_BITRATE_MODE_CBR,
@@ -351,6 +354,8 @@ int venc_ctrl_init(struct venus_inst *inst)
 
        return 0;
 err:
+       dprintk(ERR, "Error adding ctrl to ctrl handle, %d\n",
+               inst->ctrl_handler.error);
        v4l2_ctrl_handler_free(&inst->ctrl_handler);
        return ret;
 }
-- 
1.9.1

Reply via email to