diff options
| author |   Janusz Krzysztofik <jmkrzyszt@gmail.com> | 2022-04-02 13:43:53 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-21 19:17:42 +0200 |
| commit | a85f023022f0e094b82ab43c44cb69cc19603631 (patch) | |
| tree | fe91d115732c3beba987ac23c676efb49f25d970 | |
| parent | usb: gadget: omap_udc: Make it CCF clk API compatible (diff) | |
| download | linux-dev-a85f023022f0e094b82ab43c44cb69cc19603631.tar.xz linux-dev-a85f023022f0e094b82ab43c44cb69cc19603631.zip | |
usb: host: ohci-omap: Make it CCF clk API compatible
The driver, OMAP1 specific, now omits clk_prepare/unprepare() steps, not
supported by OMAP1 custom implementation of clock API. However, non-CCF
stubs of those functions exist for use on such platforms until converted
to CCF.
Update the driver to be compatible with CCF implementation of clock API.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Link: https://lore.kernel.org/r/20220402114353.130775-1-jmkrzyszt@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/host/ohci-omap.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 45dcf8292072..2ab2e089a2b7 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -281,6 +281,10 @@ static int ohci_hcd_omap_probe(struct platform_device *pdev) goto err_put_hcd; } + retval = clk_prepare(priv->usb_host_ck); + if (retval) + goto err_put_host_ck; + if (!cpu_is_omap15xx()) priv->usb_dc_ck = clk_get(&pdev->dev, "usb_dc_ck"); else @@ -288,13 +292,17 @@ static int ohci_hcd_omap_probe(struct platform_device *pdev) if (IS_ERR(priv->usb_dc_ck)) { retval = PTR_ERR(priv->usb_dc_ck); - goto err_put_host_ck; + goto err_unprepare_host_ck; } + retval = clk_prepare(priv->usb_dc_ck); + if (retval) + goto err_put_dc_ck; + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { dev_dbg(&pdev->dev, "request_mem_region failed\n"); retval = -EBUSY; - goto err_put_dc_ck; + goto err_unprepare_dc_ck; } hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); @@ -319,8 +327,12 @@ err3: iounmap(hcd->regs); err2: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); +err_unprepare_dc_ck: + clk_unprepare(priv->usb_dc_ck); err_put_dc_ck: clk_put(priv->usb_dc_ck); +err_unprepare_host_ck: + clk_unprepare(priv->usb_host_ck); err_put_host_ck: clk_put(priv->usb_host_ck); err_put_hcd: @@ -355,7 +367,9 @@ static int ohci_hcd_omap_remove(struct platform_device *pdev) } iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + clk_unprepare(priv->usb_dc_ck); clk_put(priv->usb_dc_ck); + clk_unprepare(priv->usb_host_ck); clk_put(priv->usb_host_ck); usb_put_hcd(hcd); return 0; |