summaryrefslogtreecommitdiffstats
path: root/drivers/usb/phy
diff options
context:
space:
mode:
authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>2014-06-30 19:29:49 +0200
committerFelipe Balbi <balbi@ti.com>2014-06-30 19:56:07 +0200
commite44f1f4c04f273469b2a396f5f0fe03b5bb373d2 (patch)
tree09f5773cbe1d3bddbfeefca8d4ef43423922d188 /drivers/usb/phy
parentusb: gadget: pxa27x_udc: prepare and unprepare the clock (diff)
downloadlinux-e44f1f4c04f273469b2a396f5f0fe03b5bb373d2.tar.xz
linux-e44f1f4c04f273469b2a396f5f0fe03b5bb373d2.zip
usb: phy: msm: Make phy_reset clk and reset line optional.
This patch makes the phy reset clk and reset line optional as this clk is not available on boards like IFC6410 with APQ8064. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/phy')
-rw-r--r--drivers/usb/phy/phy-msm-usb.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 625c14494c9a..d1f5da5b8d1b 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -279,11 +279,11 @@ static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert)
static int msm_otg_phy_clk_reset(struct msm_otg *motg)
{
- int ret;
+ int ret = 0;
- if (motg->pdata->phy_clk_reset)
+ if (motg->pdata->phy_clk_reset && motg->phy_reset_clk)
ret = motg->pdata->phy_clk_reset(motg->phy_reset_clk);
- else
+ else if (motg->phy_rst)
ret = reset_control_reset(motg->phy_rst);
if (ret)
@@ -1464,7 +1464,7 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
motg->phy_rst = devm_reset_control_get(&pdev->dev, "phy");
if (IS_ERR(motg->phy_rst))
- return PTR_ERR(motg->phy_rst);
+ motg->phy_rst = NULL;
pdata->mode = of_usb_get_dr_mode(node);
if (pdata->mode == USB_DR_MODE_UNKNOWN)
@@ -1556,7 +1556,7 @@ static int msm_otg_probe(struct platform_device *pdev)
np ? "phy" : "usb_phy_clk");
if (IS_ERR(motg->phy_reset_clk)) {
dev_err(&pdev->dev, "failed to get usb_phy_clk\n");
- return PTR_ERR(motg->phy_reset_clk);
+ motg->phy_reset_clk = NULL;
}
motg->clk = devm_clk_get(&pdev->dev, np ? "core" : "usb_hs_clk");