ehci-platform: Add support for shared reset controllers
Add support for shared platform controllers by using
devm_reset_control_get_shared_by_index instead of
of_reset_control_get_by_index.
Note we use the devm function because there is no
of_reset_control_get_shared_by_index, this also leads
to a nice cleanup of the cleanup code.
This brings the ehci-platform reset handling code inline
with ohci-platform.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index bc33f45..6816b8c 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -236,8 +236,8 @@
}
for (rst = 0; rst < EHCI_MAX_RSTS; rst++) {
- priv->rsts[rst] = of_reset_control_get_by_index(
- dev->dev.of_node, rst);
+ priv->rsts[rst] = devm_reset_control_get_shared_by_index(
+ &dev->dev, rst);
if (IS_ERR(priv->rsts[rst])) {
err = PTR_ERR(priv->rsts[rst]);
if (err == -EPROBE_DEFER)
@@ -247,10 +247,8 @@
}
err = reset_control_deassert(priv->rsts[rst]);
- if (err) {
- reset_control_put(priv->rsts[rst]);
+ if (err)
goto err_reset;
- }
}
if (pdata->big_endian_desc)
@@ -307,10 +305,8 @@
if (pdata->power_off)
pdata->power_off(dev);
err_reset:
- while (--rst >= 0) {
+ while (--rst >= 0)
reset_control_assert(priv->rsts[rst]);
- reset_control_put(priv->rsts[rst]);
- }
err_put_clks:
while (--clk >= 0)
clk_put(priv->clks[clk]);
@@ -335,10 +331,8 @@
if (pdata->power_off)
pdata->power_off(dev);
- for (rst = 0; rst < EHCI_MAX_RSTS && priv->rsts[rst]; rst++) {
+ for (rst = 0; rst < EHCI_MAX_RSTS && priv->rsts[rst]; rst++)
reset_control_assert(priv->rsts[rst]);
- reset_control_put(priv->rsts[rst]);
- }
for (clk = 0; clk < EHCI_MAX_CLKS && priv->clks[clk]; clk++)
clk_put(priv->clks[clk]);