> Not all revisions have all the clocks so get the necessary clocks > based on hardware revision. > > This should avoid un-necessary clk_get failure messages that were > observed earlier. > > Be more strict and always fail on clk_get() error. > > CC: Lee Jones <lee.jones@xxxxxxxxxx> > CC: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx> > Signed-off-by: Roger Quadros <rogerq@xxxxxx> > --- > drivers/mfd/omap-usb-host.c | 93 +++++++++++++++++++++++++++++++-------------- > 1 file changed, 64 insertions(+), 29 deletions(-) > > diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c > index 1c9bca2..7202cc6 100644 > --- a/drivers/mfd/omap-usb-host.c > +++ b/drivers/mfd/omap-usb-host.c > @@ -92,7 +92,6 @@ > #define is_ehci_tll_mode(x) (x == OMAP_EHCI_PORT_MODE_TLL) > #define is_ehci_hsic_mode(x) (x == OMAP_EHCI_PORT_MODE_HSIC) > > - Sneaky! ;) > struct usbhs_hcd_omap { > int nports; > struct clk **utmi_clk; > @@ -665,22 +664,41 @@ static int usbhs_omap_probe(struct platform_device *pdev) > goto err_mem; > } > > - need_logic_fck = false; > + /* Set all clocks as invalid to begin with */ > + omap->ehci_logic_fck = omap->init_60m_fclk = ERR_PTR(-EINVAL); > + omap->utmi_p1_gfclk = omap->utmi_p2_gfclk = ERR_PTR(-EINVAL); > + omap->xclk60mhsp1_ck = omap->xclk60mhsp2_ck = ERR_PTR(-EINVAL); I don't think this is the correct error code. -EINVAL means 'invalid parameter'. You probably want -ENODEV or -ENOSYS ('function not implemented' probably isn't ideal either tbh, but you get the idea). Perhaps you can set them as NULL and check for IS_ERR_OR_NULL() instead? -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html