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usb: musb: core: drop recover_work

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that's not needed anymore. Everything that we
call is irq-safe, so we might as well not
have a delayed work for babble recovery.

Tested-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2015-02-26 14:27:12 -06:00
parent b28a643240
commit 83b8f5b8c0
2 changed files with 9 additions and 9 deletions
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17
drivers/usb/musb/musb_core.c
View File

@ -509,6 +509,7 @@ void musb_hnp_stop(struct musb *musb)
static void musb_disable_interrupts(struct musb *musb);
static void musb_generic_disable(struct musb *musb);
static void musb_recover_from_babble(struct musb *musb);
/*
* Interrupt Service Routine to record USB "global" interrupts.
@ -885,8 +886,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
if (is_host_active(musb)) {
musb_disable_interrupts(musb);
schedule_delayed_work(&musb->recover_work,
usecs_to_jiffies(10));
musb_recover_from_babble(musb);
}
}
} else {
@ -1831,13 +1831,17 @@ static void musb_irq_work(struct work_struct *data)
}
}
/* Recover from babble interrupt conditions */
static void musb_recover_work(struct work_struct *data)
static void musb_recover_from_babble(struct musb *musb)
{
struct musb *musb = container_of(data, struct musb, recover_work.work);
int ret;
u8 devctl;
/*
* wait at least 320 cycles of 60MHz clock. That's 5.3us, we will give
* it some slack and wait for 10us.
*/
udelay(10);
ret = musb_platform_recover(musb);
if (ret) {
musb_enable_interrupts(musb);
@ -2098,7 +2102,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
/* Init IRQ workqueue before request_irq */
INIT_WORK(&musb->irq_work, musb_irq_work);
INIT_DELAYED_WORK(&musb->recover_work, musb_recover_work);
INIT_DELAYED_WORK(&musb->deassert_reset_work, musb_deassert_reset);
INIT_DELAYED_WORK(&musb->finish_resume_work, musb_host_finish_resume);
@ -2194,7 +2197,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
fail3:
cancel_work_sync(&musb->irq_work);
cancel_delayed_work_sync(&musb->recover_work);
cancel_delayed_work_sync(&musb->finish_resume_work);
cancel_delayed_work_sync(&musb->deassert_reset_work);
if (musb->dma_controller)
@ -2260,7 +2262,6 @@ static int musb_remove(struct platform_device *pdev)
dma_controller_destroy(musb->dma_controller);
cancel_work_sync(&musb->irq_work);
cancel_delayed_work_sync(&musb->recover_work);
cancel_delayed_work_sync(&musb->finish_resume_work);
cancel_delayed_work_sync(&musb->deassert_reset_work);
musb_free(musb);

1
drivers/usb/musb/musb_core.h
View File

@ -301,7 +301,6 @@ struct musb {
irqreturn_t (*isr)(int, void *);
struct work_struct irq_work;
struct delayed_work recover_work;
struct delayed_work deassert_reset_work;
struct delayed_work finish_resume_work;
u16 hwvers;