[PATCH v2] usb: host: ohci-generic: Make usage of clock/reset bulk() API

[Fabrice Gasnier]

Make usage of clock and reset bulk API in order to simplify the code

Reviewed-by: Marek Vasut <marex at denx.de>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier at foss.st.com>
---

Changes in v2:
- fix copy/paste on dev_err message since Marek's review comment
- add Marek's review tag

---
 drivers/usb/host/ohci-generic.c | 92 +++++++++++----------------------
 1 file changed, 29 insertions(+), 63 deletions(-)

diff --git a/drivers/usb/host/ohci-generic.c b/drivers/usb/host/ohci-generic.c
index 2d8d38ce9a40..ceed1911a95a 100644
--- a/drivers/usb/host/ohci-generic.c
+++ b/drivers/usb/host/ohci-generic.c
@@ -16,75 +16,41 @@
 
 struct generic_ohci {
 	ohci_t ohci;
-	struct clk *clocks;	/* clock list */
-	struct reset_ctl *resets; /* reset list */
+	struct clk_bulk clocks;	/* clock list */
+	struct reset_ctl_bulk resets; /* reset list */
 	struct phy phy;
-	int clock_count;	/* number of clock in clock list */
-	int reset_count;	/* number of reset in reset list */
 };
 
 static int ohci_usb_probe(struct udevice *dev)
 {
 	struct ohci_regs *regs = dev_read_addr_ptr(dev);
 	struct generic_ohci *priv = dev_get_priv(dev);
-	int i, err, ret, clock_nb, reset_nb;
-
-	err = 0;
-	priv->clock_count = 0;
-	clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells",
-					       0);
-	if (clock_nb > 0) {
-		priv->clocks = devm_kcalloc(dev, clock_nb, sizeof(struct clk),
-					    GFP_KERNEL);
-		if (!priv->clocks)
-			return -ENOMEM;
-
-		for (i = 0; i < clock_nb; i++) {
-			err = clk_get_by_index(dev, i, &priv->clocks[i]);
-			if (err < 0)
-				break;
-
-			err = clk_enable(&priv->clocks[i]);
-			if (err && err != -ENOSYS) {
-				dev_err(dev, "failed to enable clock %d\n", i);
-				clk_free(&priv->clocks[i]);
-				goto clk_err;
-			}
-			priv->clock_count++;
-		}
-	} else if (clock_nb != -ENOENT) {
-		dev_err(dev, "failed to get clock phandle(%d)\n", clock_nb);
-		return clock_nb;
+	int err, ret;
+
+	ret = clk_get_bulk(dev, &priv->clocks);
+	if (ret && ret != -ENOENT) {
+		dev_err(dev, "Failed to get clocks (ret=%d)\n", ret);
+		return ret;
+	}
+
+	err = clk_enable_bulk(&priv->clocks);
+	if (err) {
+		dev_err(dev, "Failed to enable clocks (err=%d)\n", err);
+		goto clk_err;
 	}
 
-	priv->reset_count = 0;
-	reset_nb = dev_count_phandle_with_args(dev, "resets", "#reset-cells",
-					       0);
-	if (reset_nb > 0) {
-		priv->resets = devm_kcalloc(dev, reset_nb,
-					    sizeof(struct reset_ctl),
-					    GFP_KERNEL);
-		if (!priv->resets)
-			return -ENOMEM;
-
-		for (i = 0; i < reset_nb; i++) {
-			err = reset_get_by_index(dev, i, &priv->resets[i]);
-			if (err < 0)
-				break;
-
-			err = reset_deassert(&priv->resets[i]);
-			if (err) {
-				dev_err(dev, "failed to deassert reset %d\n", i);
-				reset_free(&priv->resets[i]);
-				goto reset_err;
-			}
-			priv->reset_count++;
-		}
-	} else if (reset_nb != -ENOENT) {
-		dev_err(dev, "failed to get reset phandle(%d)\n", reset_nb);
+	err = reset_get_bulk(dev, &priv->resets);
+	if (err && err != -ENOENT) {
+		dev_err(dev, "failed to get resets (err=%d)\n", err);
 		goto clk_err;
 	}
 
+	err = reset_deassert_bulk(&priv->resets);
+	if (err) {
+		dev_err(dev, "failed to deassert resets (err=%d)\n", err);
+		goto reset_err;
+	}
+
 	err = generic_setup_phy(dev, &priv->phy, 0);
 	if (err)
 		goto reset_err;
@@ -101,13 +67,13 @@ phy_err:
 		dev_err(dev, "failed to shutdown usb phy\n");
 
 reset_err:
-	ret = reset_release_all(priv->resets, priv->reset_count);
+	ret = reset_release_bulk(&priv->resets);
 	if (ret)
-		dev_err(dev, "failed to assert all resets\n");
+		dev_err(dev, "failed to release resets (ret=%d)\n", ret);
 clk_err:
-	ret = clk_release_all(priv->clocks, priv->clock_count);
+	ret = clk_release_bulk(&priv->clocks);
 	if (ret)
-		dev_err(dev, "failed to disable all clocks\n");
+		dev_err(dev, "failed to release clocks (ret=%d)\n", ret);
 
 	return err;
 }
@@ -125,11 +91,11 @@ static int ohci_usb_remove(struct udevice *dev)
 	if (ret)
 		return ret;
 
-	ret = reset_release_all(priv->resets, priv->reset_count);
+	ret = reset_release_bulk(&priv->resets);
 	if (ret)
 		return ret;
 
-	return clk_release_all(priv->clocks, priv->clock_count);
+	return clk_release_bulk(&priv->clocks);
 }
 
 static const struct udevice_id ohci_usb_ids[] = {
-- 
2.25.1