[PATCH 2/2] usb: chipidea: imx: enable vbus and id wakeup only for OTG events

[Jun Li]

If ID or VBUS is from external block, don't enable its wakeup
because it isn't used at all.

Signed-off-by: Li Jun <jun...@nxp.com>
---
 drivers/usb/chipidea/ci_hdrc_imx.c |  6 ++++++
 drivers/usb/chipidea/ci_hdrc_imx.h |  2 ++
 drivers/usb/chipidea/usbmisc_imx.c | 17 ++++++++++++++++-
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c 
b/drivers/usb/chipidea/ci_hdrc_imx.c
index 9b45aa4..ccd59cc 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -419,6 +419,12 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
                goto err_clk;
        }
 
+       if (pdata.ext_id)
+               data->usbmisc_data->ext_id = 1;
+
+       if (pdata.ext_vbus)
+               data->usbmisc_data->ext_vbus = 1;
+
        ret = imx_usbmisc_init_post(data->usbmisc_data);
        if (ret) {
                dev_err(dev, "usbmisc post failed, ret=%d\n", ret);
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h 
b/drivers/usb/chipidea/ci_hdrc_imx.h
index 7cc53e2..8017144 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.h
+++ b/drivers/usb/chipidea/ci_hdrc_imx.h
@@ -21,6 +21,8 @@ struct imx_usbmisc_data {
        unsigned int evdo:1; /* set external vbus divider option */
        unsigned int ulpi:1; /* connected to an ULPI phy */
        unsigned int hsic:1; /* HSIC controlller */
+       unsigned int ext_id:1; /* ID from exteranl event */
+       unsigned int ext_vbus:1; /* Vbus from exteranl event */
 };
 
 int imx_usbmisc_init(struct imx_usbmisc_data *data);
diff --git a/drivers/usb/chipidea/usbmisc_imx.c 
b/drivers/usb/chipidea/usbmisc_imx.c
index 097ffbc..d357288 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -329,6 +329,20 @@ static int usbmisc_imx53_init(struct imx_usbmisc_data 
*data)
        return 0;
 }
 
+static u32 usbmisc_update_wakeup_setting(struct imx_usbmisc_data *data)
+{
+       u32 wakeup_setting = (MX6_BM_WAKEUP_ENABLE |
+               MX6_BM_VBUS_WAKEUP | MX6_BM_ID_WAKEUP);
+
+       if (data->ext_id)
+               wakeup_setting &= ~MX6_BM_ID_WAKEUP;
+
+       if (data->ext_vbus)
+               wakeup_setting &= ~MX6_BM_VBUS_WAKEUP;
+
+       return wakeup_setting;
+}
+
 static int usbmisc_imx6q_set_wakeup
        (struct imx_usbmisc_data *data, bool enabled)
 {
@@ -345,7 +359,7 @@ static int usbmisc_imx6q_set_wakeup
        spin_lock_irqsave(&usbmisc->lock, flags);
        val = readl(usbmisc->base + data->index * 4);
        if (enabled) {
-               val |= wakeup_setting;
+               val |= usbmisc_update_wakeup_setting(data);
        } else {
                if (val & MX6_BM_WAKEUP_INTR)
                        pr_debug("wakeup int at ci_hdrc.%d\n", data->index);
@@ -549,6 +563,7 @@ static int usbmisc_imx7d_set_wakeup
        spin_lock_irqsave(&usbmisc->lock, flags);
        val = readl(usbmisc->base);
        if (enabled) {
+               wakeup_setting = usbmisc_update_wakeup_setting(data);
                writel(val | wakeup_setting, usbmisc->base);
        } else {
                if (val & MX6_BM_WAKEUP_INTR)
-- 
2.7.4