This adds suspend (power collapse) functionality by reusing
the suspend function for Venus 3xx and also enables idle indicator
property for Venus 4xx (where it is disabled by default).
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@xxxxxxxxxx>
Reviewed-by: Tomasz Figa <tfiga@xxxxxxxxxxxx>
---
drivers/media/platform/qcom/venus/hfi_venus.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
index 7a83e967a8ea..9366dae16b0a 100644
--- a/drivers/media/platform/qcom/venus/hfi_venus.c
+++ b/drivers/media/platform/qcom/venus/hfi_venus.c
@@ -879,6 +879,14 @@ static int venus_sys_set_default_properties(struct venus_hfi_device *hdev)
if (ret)
dev_warn(dev, "setting fw debug msg ON failed (%d)\n", ret);
+ /*
+ * Idle indicator is disabled by default on some 4xx firmware versions,
+ * enable it explicitly in order to make suspend functional by checking
+ * WFI (wait-for-interrupt) bit.
+ */
+ if (IS_V4(hdev->core))
+ venus_sys_idle_indicator = true;
+
ret = venus_sys_set_idle_message(hdev, venus_sys_idle_indicator);
if (ret)
dev_warn(dev, "setting idle response ON failed (%d)\n", ret);
@@ -1533,7 +1541,8 @@ static int venus_suspend_3xx(struct venus_core *core)
static int venus_suspend(struct venus_core *core)
{
- if (core->res->hfi_version == HFI_VERSION_3XX)
+ if (core->res->hfi_version == HFI_VERSION_3XX ||
+ core->res->hfi_version == HFI_VERSION_4XX)
return venus_suspend_3xx(core);
return venus_suspend_1xx(core);
--
2.14.1
