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usb: dwc3: dwc3-omap: Fix disable IRQ 

In the wrapper the IRQ disable should be done by writing 1's to the
IRQ*_CLR register. Existing code is broken because it instead writes
zeros to IRQ*_SET register.

Fix this by adding functions dwc3_omap_write_irqmisc_clr() and
dwc3_omap_write_irq0_clr() which do the right thing.

Fixes: 72246da40f ("usb: Introduce DesignWare USB3 DRD Driver")
Cc: <stable@vger.kernel.org> # v3.2+
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
George Cherian 2015-02-13 10:13:24 +05:30 committed by Felipe Balbi
parent 1f754ef103
commit 96e5d31244
1 changed files with 28 additions and 2 deletions
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30
drivers/usb/dwc3/dwc3-omap.c
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@ -205,6 +205,18 @@ static void dwc3_omap_write_irq0_set(struct dwc3_omap *omap, u32 value)
omap->irq0_offset, value);
}
static void dwc3_omap_write_irqmisc_clr(struct dwc3_omap *omap, u32 value)
{
dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_CLR_MISC +
omap->irqmisc_offset, value);
}
static void dwc3_omap_write_irq0_clr(struct dwc3_omap *omap, u32 value)
{
dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_CLR_0 -
omap->irq0_offset, value);
}
static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
enum omap_dwc3_vbus_id_status status)
{
@ -345,9 +357,23 @@ static void dwc3_omap_enable_irqs(struct dwc3_omap *omap)
static void dwc3_omap_disable_irqs(struct dwc3_omap *omap)
{
u32 reg;
/* disable all IRQs */
dwc3_omap_write_irqmisc_set(omap, 0x00);
dwc3_omap_write_irq0_set(omap, 0x00);
reg = USBOTGSS_IRQO_COREIRQ_ST;
dwc3_omap_write_irq0_clr(omap, reg);
reg = (USBOTGSS_IRQMISC_OEVT |
USBOTGSS_IRQMISC_DRVVBUS_RISE |
USBOTGSS_IRQMISC_CHRGVBUS_RISE |
USBOTGSS_IRQMISC_DISCHRGVBUS_RISE |
USBOTGSS_IRQMISC_IDPULLUP_RISE |
USBOTGSS_IRQMISC_DRVVBUS_FALL |
USBOTGSS_IRQMISC_CHRGVBUS_FALL |
USBOTGSS_IRQMISC_DISCHRGVBUS_FALL |
USBOTGSS_IRQMISC_IDPULLUP_FALL);
dwc3_omap_write_irqmisc_clr(omap, reg);
}
static u64 dwc3_omap_dma_mask = DMA_BIT_MASK(32);