* [PATCH] usb: dwc3: dwc3-omap: Fix disable IRQ
@ 2015-02-12 5:43 George Cherian
2015-02-12 18:22 ` Felipe Balbi
0 siblings, 1 reply; 3+ messages in thread
From: George Cherian @ 2015-02-12 5:43 UTC (permalink / raw)
To: linux-usb, linux-kernel; +Cc: balbi, gregkh, George Cherian
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@ti.com>
---
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
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] usb: dwc3: dwc3-omap: Fix disable IRQ
2015-02-12 5:43 [PATCH] usb: dwc3: dwc3-omap: Fix disable IRQ George Cherian
@ 2015-02-12 18:22 ` Felipe Balbi
2015-02-13 4:44 ` George Cherian
0 siblings, 1 reply; 3+ messages in thread
From: Felipe Balbi @ 2015-02-12 18:22 UTC (permalink / raw)
To: George Cherian; +Cc: linux-usb, linux-kernel, balbi, gregkh
[-- Attachment #1: Type: text/plain, Size: 2409 bytes --]
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@ti.com>
please resend with:
Fixes: 72246da40f37 (usb: Introduce DesignWare USB3 DRD Driver)
Cc: <stable@vger.kernel.org> # 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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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] usb: dwc3: dwc3-omap: Fix disable IRQ
2015-02-12 18:22 ` Felipe Balbi
@ 2015-02-13 4:44 ` George Cherian
0 siblings, 0 replies; 3+ messages in thread
From: George Cherian @ 2015-02-13 4:44 UTC (permalink / raw)
To: balbi; +Cc: linux-usb, linux-kernel, gregkh
On 02/12/2015 11:52 PM, Felipe Balbi wrote:
> 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@ti.com>
> please resend with:
>
> Fixes: 72246da40f37 (usb: Introduce DesignWare USB3 DRD Driver)
> Cc:<stable@vger.kernel.org> # v3.2+
Done!!
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-02-12 5:43 [PATCH] usb: dwc3: dwc3-omap: Fix disable IRQ George Cherian
2015-02-12 18:22 ` Felipe Balbi
2015-02-13 4:44 ` George Cherian
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