On Thu, Feb 12, 2015 at 11:13:16AM +0530, George Cherian wrote:
> 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.
>
> Signed-off-by: George Cherian <george.cherian@xxxxxx>
please resend with:
Fixes: 72246da40f37 (usb: Introduce DesignWare USB3 DRD Driver)
Cc: <stable@xxxxxxxxxxxxxxx> # v3.2+
> ---
> 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
>
--
balbi
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