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usb: gadget: renesas_usbhs: bugfix: don't modify platform data

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renesas_usbhs has default callback functions and settings.
And it tried overwrite to platform private data
if platform doesn't have them.
So, if renesas_usbhs was compiled as module,
it will be hung-up on 2nd insmod.
This patch fixup it.
Special thanks to Bastian

Reported-by: Bastian Hecht <hechtb@googlemail.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Kuninori Morimoto 2011-10-12 21:02:22 -07:00 committed by Felipe Balbi
parent 034d7c13a7
commit 482982062f
3 changed files with 18 additions and 14 deletions
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24
drivers/usb/renesas_usbhs/common.c
View File

@ -61,8 +61,8 @@
*/
#define usbhs_platform_call(priv, func, args...)\
(!(priv) ? -ENODEV : \
!((priv)->pfunc->func) ? 0 : \
(priv)->pfunc->func(args))
!((priv)->pfunc.func) ? 0 : \
(priv)->pfunc.func(args))
/*
* common functions
@ -446,24 +446,28 @@ static int __devinit usbhs_probe(struct platform_device *pdev)
/*
* care platform info
*/
priv->pfunc = &info->platform_callback;
priv->dparam = &info->driver_param;
memcpy(&priv->pfunc,
&info->platform_callback,
sizeof(struct renesas_usbhs_platform_callback));
memcpy(&priv->dparam,
&info->driver_param,
sizeof(struct renesas_usbhs_driver_param));
/* set driver callback functions for platform */
dfunc = &info->driver_callback;
dfunc->notify_hotplug = usbhsc_drvcllbck_notify_hotplug;
/* set default param if platform doesn't have */
if (!priv->dparam->pipe_type) {
priv->dparam->pipe_type = usbhsc_default_pipe_type;
priv->dparam->pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
if (!priv->dparam.pipe_type) {
priv->dparam.pipe_type = usbhsc_default_pipe_type;
priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
}
if (!priv->dparam->pio_dma_border)
priv->dparam->pio_dma_border = 64; /* 64byte */
if (!priv->dparam.pio_dma_border)
priv->dparam.pio_dma_border = 64; /* 64byte */
/* FIXME */
/* runtime power control ? */
if (priv->pfunc->get_vbus)
if (priv->pfunc.get_vbus)
usbhsc_flags_set(priv, USBHSF_RUNTIME_PWCTRL);
/*

6
drivers/usb/renesas_usbhs/common.h
View File

@ -242,8 +242,8 @@ struct usbhs_priv {
void __iomem *base;
unsigned int irq;
struct renesas_usbhs_platform_callback *pfunc;
struct renesas_usbhs_driver_param *dparam;
struct renesas_usbhs_platform_callback pfunc;
struct renesas_usbhs_driver_param dparam;
struct delayed_work notify_hotplug_work;
struct platform_device *pdev;
@ -318,7 +318,7 @@ int usbhs_set_device_speed(struct usbhs_priv *priv, int devnum, u16 upphub,
* data
*/
struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev);
#define usbhs_get_dparam(priv, param) (priv->dparam->param)
#define usbhs_get_dparam(priv, param) (priv->dparam.param)
#define usbhs_priv_to_pdev(priv) (priv->pdev)
#define usbhs_priv_to_dev(priv) (&priv->pdev->dev)
#define usbhs_priv_to_lock(priv) (&priv->lock)

2
drivers/usb/renesas_usbhs/mod.c
View File

@ -58,7 +58,7 @@ 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;
priv->pfunc.get_vbus = usbhsm_autonomy_get_vbus;
usbhs_irq_callback_update(priv, NULL);
}