Hi Marek,
On 2023/02/10 23:09, Marek Vasut wrote:
On 2/8/23 10:15, Kunihiko Hayashi wrote:
[...]
+static int uniphier_usb3phy_init(struct phy *phy)
+{
+ struct uniphier_usb3phy_priv *priv = dev_get_priv(phy->dev);
+ int ret;
+
+ ret = clk_enable_bulk(&priv->clks);
+ if (ret)
+ goto out_clk;
This should be just 'return ret;'
+ ret = reset_deassert_bulk(&priv->rsts);
+ if (ret)
+ goto out_rst;
This should be goto out_rst, however ...
+ return 0;
+
+out_rst:
+ reset_release_bulk(&priv->rsts);
+out_clk:
+ clk_release_bulk(&priv->clks);
... the out_rst: should only do:
out_rst:
clk_disable_bulk();
return ret
out_clk part can be removed.
I see. These operations are unpaired.
I'll fix them.
+ return ret;
+}
+
+static int uniphier_usb3phy_probe(struct udevice *dev)
+{
+ struct uniphier_usb3phy_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ ret = clk_get_bulk(dev, &priv->clks);
+ if (ret) {
+ if (ret != -ENOSYS && ret != -ENOENT) {
This can be single line:
if (ret && ret != -ENOSYS && ret != -ENOENT)
return ret;
OK, This will be fixed.
+ printf("Failed to get clocks\n");
+ return ret;
+ }
+ }
+
+ ret = reset_get_bulk(dev, &priv->rsts);
+ if (ret) {
+ if (ret != -ENOSYS && ret != -ENOENT) {
Same here.
+ printf("Failed to get resets\n");
+ clk_release_bulk(&priv->clks);
Better use goto out_clk fail path.
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static struct phy_ops uniphier_usb3phy_ops = {
+ .init = uniphier_usb3phy_init,
You should implement .exit callback too, that one should do these two steps:
reset_assert_bulk()
clk_disable_bulk()
I think so, however, when I added .exit() and executed "usb stop;usb start",
unfortunately the command got stuck.
Currently uniphier clk doesn't support CLK_CCF and can't be nested.
I think more changes are needed.
Thank you,
---
Best Regards
Kunihiko Hayashi
