Fix OMAP EHCI suspend/resume failure (i693) '354ab856' causes

an oops on boot for all omap3xxx platforms that use usbhs_omap for
EHCI. The actual oops comes from faulty ehci-omap cleanup, but the
failure caused by the change is evidenced here:

[    3.655059] ehci-omap ehci-omap.0: utmi_p1_gfclk failed error:-2
[    3.661376] ehci-omap: probe of ehci-omap.0 failed with error -2

utmi_p1_gfclk is a clock that exists on OMAP4, but not OMAP3. In the
OMAP3 case, it is configured as a dummy clock. However, OMAP4 lists
the dev_id as NULL, but OMAP3 lists it as "usbhs_omap".

Attempting to get that clock from ehci-omap then fails. The solution
is to just change the clock3xxx_data.c for dummy clocks used in the
errata fix to match the dev_id, NULL, used in clock44xx_data.c.

Tested on BB-xM.

Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c
index 1efdec2..d5c0cba 100644 (file)
--- a/arch/arm/mach-omap2/clock3xxx_data.c
+++ b/arch/arm/mach-omap2/clock3xxx_data.c
@@ -3391,15 +3391,15 @@ static struct omap_clk omap3xxx_clks[] = {
        CLK(NULL,       "usbhost_48m_fck", &usbhost_48m_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
        CLK(NULL,       "usbhost_ick",  &usbhost_ick,   CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
        CLK("usbhs_omap",       "usbhost_ick",  &usbhost_ick,   CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
-       CLK("usbhs_omap",       "utmi_p1_gfclk",        &dummy_ck,      CK_3XXX),
-       CLK("usbhs_omap",       "utmi_p2_gfclk",        &dummy_ck,      CK_3XXX),
-       CLK("usbhs_omap",       "xclk60mhsp1_ck",       &dummy_ck,      CK_3XXX),
-       CLK("usbhs_omap",       "xclk60mhsp2_ck",       &dummy_ck,      CK_3XXX),
-       CLK("usbhs_omap",       "usb_host_hs_utmi_p1_clk",      &dummy_ck,      CK_3XXX),
-       CLK("usbhs_omap",       "usb_host_hs_utmi_p2_clk",      &dummy_ck,      CK_3XXX),
+       CLK(NULL,       "utmi_p1_gfclk",        &dummy_ck,      CK_3XXX),
+       CLK(NULL,       "utmi_p2_gfclk",        &dummy_ck,      CK_3XXX),
+       CLK(NULL,       "xclk60mhsp1_ck",       &dummy_ck,      CK_3XXX),
+       CLK(NULL,       "xclk60mhsp2_ck",       &dummy_ck,      CK_3XXX),
+       CLK(NULL,       "usb_host_hs_utmi_p1_clk",      &dummy_ck,      CK_3XXX),
+       CLK(NULL,       "usb_host_hs_utmi_p2_clk",      &dummy_ck,      CK_3XXX),
        CLK("usbhs_omap",       "usb_tll_hs_usb_ch0_clk",       &dummy_ck,      CK_3XXX),
        CLK("usbhs_omap",       "usb_tll_hs_usb_ch1_clk",       &dummy_ck,      CK_3XXX),
-       CLK("usbhs_omap",       "init_60m_fclk",        &dummy_ck,      CK_3XXX),
+       CLK(NULL,       "init_60m_fclk",        &dummy_ck,      CK_3XXX),
        CLK(NULL,       "usim_fck",     &usim_fck,      CK_3430ES2PLUS | CK_36XX),
        CLK(NULL,       "gpt1_fck",     &gpt1_fck,      CK_3XXX),
        CLK(NULL,       "wkup_32k_fck", &wkup_32k_fck,  CK_3XXX),