diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2019-06-25 08:38:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-26 05:33:08 +0300 |
| commit | ccc3264c2481c9bcbacfe935dc024aaab4423204 (patch) | |
| tree | a103ecaa93b8c5a7034bbae244d954f7f2d36bc4 /drivers/usb | |
| parent | edcf2b2c6629feac147e1a0abdbb3408769ff7e7 (diff) | |
| download | linux-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.c | 4 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod.c | 11 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod.h | 7 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod_gadget.c | 4 |
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); } |