[PATCH] usb: dwc3: keystone: drop dma_mask configuration

[PATCH] usb: dwc3: keystone: drop dma_mask configuration

[Grygorii Strashko]

The Keystone 2 supports DT-boot only, as result dma_mask will be
always configured properly from DT -
of_platform_device_create_pdata()->of_dma_configure(). More over,
dwc3-keystone.c can be built as module and in this case it's unsafe to
assign local variable as dma_mask.

Hence, remove dma_mask configuration code.

Cc: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
---
 drivers/usb/dwc3/dwc3-keystone.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-keystone.c b/drivers/usb/dwc3/dwc3-keystone.c
index 2be268d..7266470 100644
--- a/drivers/usb/dwc3/dwc3-keystone.c
+++ b/drivers/usb/dwc3/dwc3-keystone.c
@@ -39,8 +39,6 @@
 #define USBSS_IRQ_COREIRQ_EN	BIT(0)
 #define USBSS_IRQ_COREIRQ_CLR	BIT(0)
 
-static u64 kdwc3_dma_mask;
-
 struct dwc3_keystone {
 	struct device			*dev;
 	struct clk			*clk;
@@ -108,9 +106,6 @@ static int kdwc3_probe(struct platform_device *pdev)
 	if (IS_ERR(kdwc->usbss))
 		return PTR_ERR(kdwc->usbss);
 
-	kdwc3_dma_mask = dma_get_mask(dev);
-	dev->dma_mask = &kdwc3_dma_mask;
-
 	kdwc->clk = devm_clk_get(kdwc->dev, "usb");
 
 	error = clk_prepare_enable(kdwc->clk);
-- 
2.8.0

Re: [PATCH] usb: dwc3: keystone: drop dma_mask configuration

[Felipe Balbi]

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Hi,

Grygorii Strashko <grygorii.strashko@ti.com> writes:
> The Keystone 2 supports DT-boot only, as result dma_mask will be
> always configured properly from DT -
> of_platform_device_create_pdata()->of_dma_configure(). More over,
> dwc3-keystone.c can be built as module and in this case it's unsafe to
> assign local variable as dma_mask.
>
> Hence, remove dma_mask configuration code.
>
> Cc: Murali Karicheri <m-karicheri2@ti.com>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>

with these two patches from you, does USB Peripheral work on k2 devices ?

I'll drop my k2 changes from my series which I sent on saturday.

-- 
balbi

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Re: [PATCH] usb: dwc3: keystone: drop dma_mask configuration

[Grygorii Strashko]

On 04/04/2016 02:45 PM, Felipe Balbi wrote:
>
> Hi,
>
> Grygorii Strashko <grygorii.strashko@ti.com> writes:
>> The Keystone 2 supports DT-boot only, as result dma_mask will be
>> always configured properly from DT -
>> of_platform_device_create_pdata()->of_dma_configure(). More over,
>> dwc3-keystone.c can be built as module and in this case it's unsafe to
>> assign local variable as dma_mask.
>>
>> Hence, remove dma_mask configuration code.
>>
>> Cc: Murali Karicheri <m-karicheri2@ti.com>
>> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
>
> with these two patches from you, does USB Peripheral work on k2 devices ?

I've tried CONFIG_USB_DWC3_GADGET=y + g_zero and k2e was detected
as gzero dev from Host PC

>
> I'll drop my k2 changes from my series which I sent on saturday.
>

Yes, please.

-- 
regards,
-grygorii

Re: [PATCH] usb: dwc3: keystone: drop dma_mask configuration

[Felipe Balbi]

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Hi,

Grygorii Strashko <grygorii.strashko@ti.com> writes:
> On 04/04/2016 02:45 PM, Felipe Balbi wrote:
>>
>> Hi,
>>
>> Grygorii Strashko <grygorii.strashko@ti.com> writes:
>>> The Keystone 2 supports DT-boot only, as result dma_mask will be
>>> always configured properly from DT -
>>> of_platform_device_create_pdata()->of_dma_configure(). More over,
>>> dwc3-keystone.c can be built as module and in this case it's unsafe to
>>> assign local variable as dma_mask.
>>>
>>> Hence, remove dma_mask configuration code.
>>>
>>> Cc: Murali Karicheri <m-karicheri2@ti.com>
>>> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
>>
>> with these two patches from you, does USB Peripheral work on k2 devices ?
>
> I've tried CONFIG_USB_DWC3_GADGET=y + g_zero and k2e was detected
> as gzero dev from Host PC
>
>>
>> I'll drop my k2 changes from my series which I sent on saturday.
>>
>
> Yes, please.

can you test a similar patch to dwc3-omap.c, then ?

-- 
balbi

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