From b0e5992612a1079ddcc1810b786ab8ca438cddae Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Tue, 15 Oct 2013 15:30:34 +0300 Subject: mfd: omap-usb: prepare/unprepare clock while enable/disable This should fix the following warning at boot on OMAP5 uEVM [ 8.783155] WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:883 __clk_enable+0x94/0xa4() Signed-off-by: Roger Quadros Signed-off-by: Lee Jones --- drivers/mfd/omap-usb-host.c | 16 ++++++++-------- drivers/mfd/omap-usb-tll.c | 4 ++-- 2 files changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index 1b65ffe08ff9..142650fdc058 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -328,13 +328,13 @@ static int usbhs_runtime_resume(struct device *dev) omap_tll_enable(pdata); if (!IS_ERR(omap->ehci_logic_fck)) - clk_enable(omap->ehci_logic_fck); + clk_prepare_enable(omap->ehci_logic_fck); for (i = 0; i < omap->nports; i++) { switch (pdata->port_mode[i]) { case OMAP_EHCI_PORT_MODE_HSIC: if (!IS_ERR(omap->hsic60m_clk[i])) { - r = clk_enable(omap->hsic60m_clk[i]); + r = clk_prepare_enable(omap->hsic60m_clk[i]); if (r) { dev_err(dev, "Can't enable port %d hsic60m clk:%d\n", @@ -343,7 +343,7 @@ static int usbhs_runtime_resume(struct device *dev) } if (!IS_ERR(omap->hsic480m_clk[i])) { - r = clk_enable(omap->hsic480m_clk[i]); + r = clk_prepare_enable(omap->hsic480m_clk[i]); if (r) { dev_err(dev, "Can't enable port %d hsic480m clk:%d\n", @@ -354,7 +354,7 @@ static int usbhs_runtime_resume(struct device *dev) case OMAP_EHCI_PORT_MODE_TLL: if (!IS_ERR(omap->utmi_clk[i])) { - r = clk_enable(omap->utmi_clk[i]); + r = clk_prepare_enable(omap->utmi_clk[i]); if (r) { dev_err(dev, "Can't enable port %d clk : %d\n", @@ -382,15 +382,15 @@ static int usbhs_runtime_suspend(struct device *dev) switch (pdata->port_mode[i]) { case OMAP_EHCI_PORT_MODE_HSIC: if (!IS_ERR(omap->hsic60m_clk[i])) - clk_disable(omap->hsic60m_clk[i]); + clk_disable_unprepare(omap->hsic60m_clk[i]); if (!IS_ERR(omap->hsic480m_clk[i])) - clk_disable(omap->hsic480m_clk[i]); + clk_disable_unprepare(omap->hsic480m_clk[i]); /* Fall through as utmi_clks were used in HSIC mode */ case OMAP_EHCI_PORT_MODE_TLL: if (!IS_ERR(omap->utmi_clk[i])) - clk_disable(omap->utmi_clk[i]); + clk_disable_unprepare(omap->utmi_clk[i]); break; default: break; @@ -398,7 +398,7 @@ static int usbhs_runtime_suspend(struct device *dev) } if (!IS_ERR(omap->ehci_logic_fck)) - clk_disable(omap->ehci_logic_fck); + clk_disable_unprepare(omap->ehci_logic_fck); omap_tll_disable(pdata); diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c index b8f6401cbc22..0d946ae14453 100644 --- a/drivers/mfd/omap-usb-tll.c +++ b/drivers/mfd/omap-usb-tll.c @@ -429,7 +429,7 @@ int omap_tll_enable(struct usbhs_omap_platform_data *pdata) if (IS_ERR(tll->ch_clk[i])) continue; - r = clk_enable(tll->ch_clk[i]); + r = clk_prepare_enable(tll->ch_clk[i]); if (r) { dev_err(tll_dev, "Error enabling ch %d clock: %d\n", i, r); @@ -460,7 +460,7 @@ int omap_tll_disable(struct usbhs_omap_platform_data *pdata) for (i = 0; i < tll->nch; i++) { if (omap_usb_mode_needs_tll(pdata->port_mode[i])) { if (!IS_ERR(tll->ch_clk[i])) - clk_disable(tll->ch_clk[i]); + clk_disable_unprepare(tll->ch_clk[i]); } } -- cgit v1.2.3