diff mbox

usb: musb: da8xx: Use the right DMA controller

Message ID 20170116170247.9862-1-abailon@baylibre.com (mailing list archive)
State New, archived
Headers show

Commit Message

Alexandre Bailon Jan. 16, 2017, 5:02 p.m. UTC
DA8xx driver is registering and using the CPPI DMA controller but actually,
the DA8xx has a CPPI 4.1 DMA controller.
Update the driver to register and use the CPPI 4.1 DMA controller.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
 drivers/usb/musb/da8xx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Sergei Shtylyov Jan. 16, 2017, 5:09 p.m. UTC | #1
Hello!

On 01/16/2017 08:02 PM, Alexandre Bailon wrote:

> DA8xx driver is registering and using the CPPI DMA controller but actually,
> the DA8xx has a CPPI 4.1 DMA controller.
> Update the driver to register and use the CPPI 4.1 DMA controller.
>
> Signed-off-by: Alexandre Bailon <abailon@baylibre.com>

    I have already expressed my opinion about this patch: I would like to see 
the CPPI 3.0 quirk/methods fixed first (backporting this to -stable). Then we 
can consider CPPI 4.1 DMA support.

MNR, Sergei

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Alexandre Bailon Jan. 16, 2017, 5:26 p.m. UTC | #2
On 01/16/2017 06:09 PM, Sergei Shtylyov wrote:
> Hello!
> 
> On 01/16/2017 08:02 PM, Alexandre Bailon wrote:
> 
>> DA8xx driver is registering and using the CPPI DMA controller but
>> actually,
>> the DA8xx has a CPPI 4.1 DMA controller.
>> Update the driver to register and use the CPPI 4.1 DMA controller.
>>
>> Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
> 
>    I have already expressed my opinion about this patch: I would like to
> see the CPPI 3.0 quirk/methods fixed first (backporting this to
> -stable). Then we can consider CPPI 4.1 DMA support.
I guess I have misunderstood you.
I though you asked to send this patch alone (separated from the series
that adds CPPI 4.1 support to DA8xx).

I still not sure to understand what you want me to do.

Best Regards,
Alexandre
> 
> MNR, Sergei
> 

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Sergei Shtylyov Jan. 16, 2017, 5:29 p.m. UTC | #3
On 01/16/2017 08:26 PM, Alexandre Bailon wrote:

>>> DA8xx driver is registering and using the CPPI DMA controller but
>>> actually,
>>> the DA8xx has a CPPI 4.1 DMA controller.
>>> Update the driver to register and use the CPPI 4.1 DMA controller.
>>>
>>> Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
>>
>>    I have already expressed my opinion about this patch: I would like to
>> see the CPPI 3.0 quirk/methods fixed first (backporting this to
>> -stable). Then we can consider CPPI 4.1 DMA support.

> I guess I have misunderstood you.
> I though you asked to send this patch alone (separated from the series
> that adds CPPI 4.1 support to DA8xx).

    No, it wasn't what I wanted...

> I still not sure to understand what you want me to do.

    I want the patch removing the CPPI (3.0) quirk and the corresponding 
method initializers. Then please do the patch enabling CPPI 4.1 support atop 
of that fix.

> Best Regards,
> Alexandre

MBR, Sergei

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Alexandre Bailon Jan. 16, 2017, 5:33 p.m. UTC | #4
On 01/16/2017 06:29 PM, Sergei Shtylyov wrote:
> On 01/16/2017 08:26 PM, Alexandre Bailon wrote:
> 
>>>> DA8xx driver is registering and using the CPPI DMA controller but
>>>> actually,
>>>> the DA8xx has a CPPI 4.1 DMA controller.
>>>> Update the driver to register and use the CPPI 4.1 DMA controller.
>>>>
>>>> Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
>>>
>>>    I have already expressed my opinion about this patch: I would like to
>>> see the CPPI 3.0 quirk/methods fixed first (backporting this to
>>> -stable). Then we can consider CPPI 4.1 DMA support.
> 
>> I guess I have misunderstood you.
>> I though you asked to send this patch alone (separated from the series
>> that adds CPPI 4.1 support to DA8xx).
> 
>    No, it wasn't what I wanted...
> 
>> I still not sure to understand what you want me to do.
> 
>    I want the patch removing the CPPI (3.0) quirk and the corresponding
> method initializers. Then please do the patch enabling CPPI 4.1 support
> atop of that fix.
Understood. I will do it.
> 
>> Best Regards,
>> Alexandre
> 
> MBR, Sergei
> 

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diff mbox

Patch

diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index e89708d..74dcc07 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -458,14 +458,14 @@  static inline u8 get_vbus_power(struct device *dev)
 }
 
 static const struct musb_platform_ops da8xx_ops = {
-	.quirks		= MUSB_DMA_CPPI | MUSB_INDEXED_EP,
+	.quirks		= MUSB_DMA_CPPI41 | MUSB_INDEXED_EP,
 	.init		= da8xx_musb_init,
 	.exit		= da8xx_musb_exit,
 
 	.fifo_mode	= 2,
-#ifdef CONFIG_USB_TI_CPPI_DMA
-	.dma_init	= cppi_dma_controller_create,
-	.dma_exit	= cppi_dma_controller_destroy,
+#ifdef CONFIG_USB_TI_CPPI41_DMA
+	.dma_init	= cppi41_dma_controller_create,
+	.dma_exit	= cppi41_dma_controller_destroy,
 #endif
 	.enable		= da8xx_musb_enable,
 	.disable	= da8xx_musb_disable,