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Commit 20de12cc authored by Prashant Gaikwad's avatar Prashant Gaikwad Committed by Stephen Warren
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USB: ehci-tegra: add clk_prepare/clk_unprepare 



Use clk_prepare/clk_unprepare as required by the generic clk framework.

Cc: stern@rowland.harvard.edu
Cc: gregkh@linuxfoundation.org
Cc: linux-usb@vger.kernel.org
Signed-off-by: default avatarPrashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
parent 1e674bc6

drivers/usb/host/ehci-tegra.c

+10 −10
Original line number Diff line number Diff line
@@ -46,8 +46,8 @@ static void tegra_ehci_power_up(struct usb_hcd *hcd) 
{

	struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller);



	clk_enable(tegra->emc_clk);

	clk_enable(tegra->clk);

	clk_prepare_enable(tegra->emc_clk);

	clk_prepare_enable(tegra->clk);

	tegra_usb_phy_power_on(tegra->phy);

	tegra->host_resumed = 1;

}
@@ -58,8 +58,8 @@ static void tegra_ehci_power_down(struct usb_hcd *hcd) 


	tegra->host_resumed = 0;

	tegra_usb_phy_power_off(tegra->phy);

	clk_disable(tegra->clk);

	clk_disable(tegra->emc_clk);

	clk_disable_unprepare(tegra->clk);

	clk_disable_unprepare(tegra->emc_clk);

}



static int tegra_ehci_internal_port_reset(
@@ -671,7 +671,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) 
		goto fail_clk;

	}



	err = clk_enable(tegra->clk);

	err = clk_prepare_enable(tegra->clk);

	if (err)

		goto fail_clken;
@@ -682,7 +682,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) 
		goto fail_emc_clk;

	}



	clk_enable(tegra->emc_clk);

	clk_prepare_enable(tegra->emc_clk);

	clk_set_rate(tegra->emc_clk, 400000000);



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -782,10 +782,10 @@ fail: 
fail_phy:

	iounmap(hcd->regs);

fail_io:

	clk_disable(tegra->emc_clk);

	clk_disable_unprepare(tegra->emc_clk);

	clk_put(tegra->emc_clk);

fail_emc_clk:

	clk_disable(tegra->clk);

	clk_disable_unprepare(tegra->clk);

fail_clken:

	clk_put(tegra->clk);

fail_clk:
@@ -820,10 +820,10 @@ static int tegra_ehci_remove(struct platform_device *pdev) 
	tegra_usb_phy_close(tegra->phy);

	iounmap(hcd->regs);



	clk_disable(tegra->clk);

	clk_disable_unprepare(tegra->clk);

	clk_put(tegra->clk);



	clk_disable(tegra->emc_clk);

	clk_disable_unprepare(tegra->emc_clk);

	clk_put(tegra->emc_clk);



	kfree(tegra);