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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2019-06-25 08:38:48 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-26 05:33:08 +0300
commitccc3264c2481c9bcbacfe935dc024aaab4423204 (patch)
treea103ecaa93b8c5a7034bbae244d954f7f2d36bc4 /drivers/usb
parentedcf2b2c6629feac147e1a0abdbb3408769ff7e7 (diff)
downloadlinux-ccc3264c2481c9bcbacfe935dc024aaab4423204.tar.xz
usb: renesas_usbhs: Avoid to write platform_data's value
The very old commit 482982062f1b ("usb: gadget: renesas_usbhs: bugfix: don't modify platform data") changed to use copied whole structures values to fix the "hung-up" issue. However, we also can fix the issue if the driver copies the get_vbus function pointer to the driver's value. So, this patch adds get_vbus member into struct usbhs_mod_info and use the pointer instead of struct renesas_usbhs_platform_callback. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/renesas_usbhs/common.c4
-rw-r--r--drivers/usb/renesas_usbhs/mod.c11
-rw-r--r--drivers/usb/renesas_usbhs/mod.h7
-rw-r--r--drivers/usb/renesas_usbhs/mod_gadget.c4
4 files changed, 21 insertions, 5 deletions
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index f6b136a4f91e..739fe4b4c1d5 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -448,7 +448,7 @@ static void usbhsc_hotplug(struct usbhs_priv *priv)
/*
* get vbus status from platform
*/
- enable = usbhs_platform_call(priv, get_vbus, pdev);
+ enable = usbhs_mod_info_call(priv, get_vbus, pdev);
/*
* get id from platform
@@ -809,6 +809,8 @@ static int usbhs_probe(struct platform_device *pdev)
if (!usbhs_get_dparam(priv, runtime_pwctrl)) {
usbhsc_power_ctrl(priv, 1);
usbhs_mod_autonomy_mode(priv);
+ } else {
+ usbhs_mod_non_autonomy_mode(priv);
}
/*
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index 984bb2fff8b8..ddf0153dcf16 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -42,12 +42,19 @@ void usbhs_mod_autonomy_mode(struct usbhs_priv *priv)
{
struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
- info->irq_vbus = usbhsm_autonomy_irq_vbus;
- priv->pfunc.get_vbus = usbhsm_autonomy_get_vbus;
+ info->irq_vbus = usbhsm_autonomy_irq_vbus;
+ info->get_vbus = usbhsm_autonomy_get_vbus;
usbhs_irq_callback_update(priv, NULL);
}
+void usbhs_mod_non_autonomy_mode(struct usbhs_priv *priv)
+{
+ struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv);
+
+ info->get_vbus = priv->pfunc.get_vbus;
+}
+
/*
* host / gadget functions
*
diff --git a/drivers/usb/renesas_usbhs/mod.h b/drivers/usb/renesas_usbhs/mod.h
index 6678e8103bb1..65dc19ca528e 100644
--- a/drivers/usb/renesas_usbhs/mod.h
+++ b/drivers/usb/renesas_usbhs/mod.h
@@ -93,6 +93,12 @@ struct usbhs_mod_info {
*/
int (*irq_vbus)(struct usbhs_priv *priv,
struct usbhs_irq_state *irq_state);
+
+ /*
+ * This function will be used on any gadget mode. To simplify the code,
+ * this member is in here.
+ */
+ int (*get_vbus)(struct platform_device *pdev);
};
/*
@@ -107,6 +113,7 @@ int usbhs_mod_probe(struct usbhs_priv *priv);
void usbhs_mod_remove(struct usbhs_priv *priv);
void usbhs_mod_autonomy_mode(struct usbhs_priv *priv);
+void usbhs_mod_non_autonomy_mode(struct usbhs_priv *priv);
/*
* status functions
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index 0c1e8fa528fc..4d571a5205e2 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -915,8 +915,8 @@ static void usbhs_mod_phy_mode(struct usbhs_priv *priv)
{
struct usbhs_mod_info *info = &priv->mod_info;
- info->irq_vbus = NULL;
- priv->pfunc.get_vbus = usbhsm_phy_get_vbus;
+ info->irq_vbus = NULL;
+ info->get_vbus = usbhsm_phy_get_vbus;
usbhs_irq_callback_update(priv, NULL);
}