This patch will enable the ehci controller's clock when needed.
Signed-off-by: Saeed Bishara <saeed@xxxxxxxxxxx>
---
drivers/usb/host/ehci-orion.c | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index ba659e0..92680ad 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -361,6 +361,14 @@ static int __devinit ehci_orion_drv_probe(struct platform_device *pdev)
goto err3;
}
+#if defined(CONFIG_HAVE_CLK)
+ hcd->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(hcd->clk))
+ dev_notice(&pdev->dev, "cannot get clkdev\n");
+ else
+ clk_enable(hcd->clk);
+#endif
+
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
hcd->regs = regs;
@@ -382,6 +390,13 @@ static int __devinit ehci_orion_drv_probe(struct platform_device *pdev)
return 0;
err4:
+#if defined(CONFIG_HAVE_CLK)
+ if (!IS_ERR(hcd->clk)) {
+ clk_disable(hcd->clk);
+ clk_put(hcd->clk);
+ }
+#endif
+
usb_put_hcd(hcd);
err3:
iounmap(regs);
@@ -402,6 +417,12 @@ static int __exit ehci_orion_drv_remove(struct platform_device *pdev)
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
+#if defined(CONFIG_HAVE_CLK)
+ if (!IS_ERR(hcd->clk)) {
+ clk_disable(hcd->clk);
+ clk_put(hcd->clk);
+ }
+#endif
return 0;
}
--
1.6.0.4
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