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drivers: video: tegra: host: decode fw version tag

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- Decode firmware version tag from ucode binary.
- Add debugfs to dump firmware version tag

Jira DLA-318

Change-Id: I0208d8c8da2d91454f3ba0f4efa618cb44e22787
Signed-off-by: Shridhar Rasal <srasal@nvidia.com>
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1645226
GVS: Gerrit_Virtual_Submit
Reviewed-by: Mitch Harwell <mharwell@nvidia.com>
Tested-by: Mitch Harwell <mharwell@nvidia.com>
Reviewed-by: Ken Adams <kadams@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Shridhar Rasal
2018-01-24 15:24:18 +05:30
committed by Laxman Dewangan
parent 2c981f2b3f
commit 2ea8b58dd3
1 changed files with 41 additions and 0 deletions
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41
drivers/video/tegra/host/nvdla/nvdla_debug.c
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@@ -524,6 +524,43 @@ static ssize_t debug_dla_fw_reload_set(struct file *file,
return count;
}
static int nvdla_fw_ver_tag_show(struct seq_file *s, void *unused)
{
struct nvdla_device *nvdla_dev;
struct platform_device *pdev;
int err;
unsigned int tag;
struct flcn *m;
nvdla_dev = (struct nvdla_device *)s->private;
pdev = nvdla_dev->pdev;
/* update fw_version if engine is not yet powered on */
err = nvhost_module_busy(pdev);
if (err)
return err;
m = get_flcn(pdev);
tag = m->os.bin_ver_tag;
nvhost_module_idle(pdev);
seq_printf(s, "%x\n", tag);
return 0;
}
static int nvdla_fw_ver_tag_open(struct inode *inode, struct file *file)
{
return single_open(file, nvdla_fw_ver_tag_show, inode->i_private);
}
static const struct file_operations nvdla_fw_ver_tag_fops = {
.open = nvdla_fw_ver_tag_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int debug_dla_fw_reload_show(struct seq_file *s, void *data)
{
seq_puts(s, "0\n");
@@ -613,6 +650,10 @@ static void dla_fw_debugfs_init(struct platform_device *pdev)
nvdla_dev, &nvdla_fw_ver_fops))
goto trace_failed;
if (!debugfs_create_file("tag", S_IRUGO, fw_dir,
nvdla_dev, &nvdla_fw_ver_tag_fops))
goto trace_failed;
if (!debugfs_create_file("reload", 0600, fw_dir,
nvdla_dev, &nvdla_fw_reload_fops))
goto trace_failed;