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media: amphion: support for reloading module

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As there is no interface to power off vpu core.
So it need to boot from cold on first load.
but on the second load, driver need to restore the status
instead of booting.

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Ming Qian 2022-05-17 09:01:16 +01:00 committed by Mauro Carvalho Chehab
parent f4334c51b1
commit 9059ca921b
1 changed files with 4 additions and 7 deletions
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11
drivers/media/platform/amphion/vpu_core.c
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@ -257,14 +257,8 @@ static int vpu_core_register(struct device *dev, struct vpu_core *core)
} }
list_add_tail(&core->list, &vpu->cores); list_add_tail(&core->list, &vpu->cores);
vpu_core_get_vpu(core); vpu_core_get_vpu(core);
if (vpu_iface_get_power_state(core))
ret = vpu_core_restore(core);
if (ret)
goto error;
return 0; return 0;
error: error:
if (core->msg_buffer) { if (core->msg_buffer) {
@ -362,7 +356,10 @@ struct vpu_core *vpu_request_core(struct vpu_dev *vpu, enum vpu_core_type type)
pm_runtime_resume_and_get(core->dev); pm_runtime_resume_and_get(core->dev);
if (core->state == VPU_CORE_DEINIT) { if (core->state == VPU_CORE_DEINIT) {
ret = vpu_core_boot(core, true); if (vpu_iface_get_power_state(core))
ret = vpu_core_restore(core);
else
ret = vpu_core_boot(core, true);
if (ret) { if (ret) {
pm_runtime_put_sync(core->dev); pm_runtime_put_sync(core->dev);
mutex_unlock(&core->lock); mutex_unlock(&core->lock);