===
This code is based upon v11 of Lina and Raju's RPMh series.
Suggested-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Lina Iyer <ilina@codeaurora.org>
---
Changes in v2:
- 1 space after a period as per Lina
drivers/soc/qcom/rpmh-rsc.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
@@ -18,6 +18,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <soc/qcom/cmd-db.h>
#include <soc/qcom/tcs.h>
#include <dt-bindings/soc/qcom,rpmh-rsc.h>
@@ -621,6 +622,18 @@ static int rpmh_rsc_probe(struct platform_device *pdev)
struct rsc_drv *drv;
int ret, irq;
+ /*
+ * Even though RPMh doesn't directly use cmd-db, all of its children
+ * do. To avoid adding this check to our children we'll do it now.
+ */
+ ret = cmd_db_ready();
+ if (ret) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Command DB not available (%d)\n",
+ ret);
+ return ret;
+ }
+
drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
if (!drv)
return -ENOMEM;