soc: xilinx: cleanup debug and error messages

Use dev_err/dev_dbg instead of pr_err/pr_debug.

Add the PM node ids to supplement the (arbitrary) power domain names to
include information which PM nodes are requested by the driver.

Drop function names from the messages, because they can easily be added
with dynamic debug.

Remove comments explaining that error messages are printed on errors.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Rajan Vaja <rajan.vaja@xilinx.com>
Link: https://lore.kernel.org/r/20210825150313.4033156-3-m.tretter@pengutronix.de
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 23 insertions, 22 deletions

diff --git a/drivers/soc/xilinx/zynqmp_pm_domains.c b/drivers/soc/xilinx/zynqmp_pm_domains.c
index 81e8e10f1092..27c46c68e5cc 100644
--- a/drivers/soc/xilinx/zynqmp_pm_domains.c
+++ b/drivers/soc/xilinx/zynqmp_pm_domains.c
@@ -80,12 +80,15 @@ static int zynqmp_gpd_power_on(struct generic_pm_domain *domain)
 					ZYNQMP_PM_MAX_QOS,
 					ZYNQMP_PM_REQUEST_ACK_BLOCKING);
 	if (ret) {
-		pr_err("%s() %s set requirement for node %d failed: %d\n",
-		       __func__, domain->name, pd->node_id, ret);
+		dev_err(&domain->dev,
+			"failed to set requirement to 0x%x for PM node id %d: %d\n",
+			ZYNQMP_PM_CAPABILITY_ACCESS, pd->node_id, ret);
 		return ret;
 	}
 
-	pr_debug("%s() Powered on %s domain\n", __func__, domain->name);
+	dev_dbg(&domain->dev, "set requirement to 0x%x for PM node id %d\n",
+		ZYNQMP_PM_CAPABILITY_ACCESS, pd->node_id);
+
 	return 0;
 }
 
@@ -110,8 +113,8 @@ static int zynqmp_gpd_power_off(struct generic_pm_domain *domain)
 
 	/* If domain is already released there is nothing to be done */
 	if (!(pd->flags & ZYNQMP_PM_DOMAIN_REQUESTED)) {
-		pr_debug("%s() %s domain is already released\n",
-			 __func__, domain->name);
+		dev_dbg(&domain->dev, "PM node id %d is already released\n",
+			pd->node_id);
 		return 0;
 	}
 
@@ -128,17 +131,16 @@ static int zynqmp_gpd_power_off(struct generic_pm_domain *domain)
 
 	ret = zynqmp_pm_set_requirement(pd->node_id, capabilities, 0,
 					ZYNQMP_PM_REQUEST_ACK_NO);
-	/**
-	 * If powering down of any node inside this domain fails,
-	 * report and return the error
-	 */
 	if (ret) {
-		pr_err("%s() %s set requirement for node %d failed: %d\n",
-		       __func__, domain->name, pd->node_id, ret);
+		dev_err(&domain->dev,
+			"failed to set requirement to 0x%x for PM node id %d: %d\n",
+			capabilities, pd->node_id, ret);
 		return ret;
 	}
 
-	pr_debug("%s() Powered off %s domain\n", __func__, domain->name);
+	dev_dbg(&domain->dev, "set requirement to 0x%x for PM node id %d\n",
+		capabilities, pd->node_id);
+
 	return 0;
 }
 
@@ -169,17 +171,17 @@ static int zynqmp_gpd_attach_dev(struct generic_pm_domain *domain,
 
 	ret = zynqmp_pm_request_node(pd->node_id, 0, 0,
 				     ZYNQMP_PM_REQUEST_ACK_BLOCKING);
-	/* If requesting a node fails print and return the error */
 	if (ret) {
-		pr_err("%s() %s request failed for node %d: %d\n",
-		       __func__, domain->name, pd->node_id, ret);
+		dev_err(&domain->dev, "%s request failed for node %d: %d\n",
+			domain->name, pd->node_id, ret);
 		return ret;
 	}
 
 	pd->flags |= ZYNQMP_PM_DOMAIN_REQUESTED;
 
-	pr_debug("%s() %s attached to %s domain\n", __func__,
-		 dev_name(dev), domain->name);
+	dev_dbg(&domain->dev, "%s requested PM node id %d\n",
+		dev_name(dev), pd->node_id);
+
 	return 0;
 }
 
@@ -201,17 +203,16 @@ static void zynqmp_gpd_detach_dev(struct generic_pm_domain *domain,
 		return;
 
 	ret = zynqmp_pm_release_node(pd->node_id);
-	/* If releasing a node fails print the error and return */
 	if (ret) {
-		pr_err("%s() %s release failed for node %d: %d\n",
-		       __func__, domain->name, pd->node_id, ret);
+		dev_err(&domain->dev, "failed to release PM node id %d: %d\n",
+			pd->node_id, ret);
 		return;
 	}
 
 	pd->flags &= ~ZYNQMP_PM_DOMAIN_REQUESTED;
 
-	pr_debug("%s() %s detached from %s domain\n", __func__,
-		 dev_name(dev), domain->name);
+	dev_dbg(&domain->dev, "%s released PM node id %d\n",
+		dev_name(dev), pd->node_id);
 }
 
 static struct generic_pm_domain *zynqmp_gpd_xlate