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: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver")
Cc: <stable@xxxxxxxxxxxxxxx> # v3.2+
Signed-off-by: George Cherian <george.cherian@xxxxxx>
---
drivers/usb/dwc3/dwc3-omap.c | 30 ++++++++++++++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 172d64e..52e0c4e 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -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);
--
1.8.3.1
--
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