diff mbox series

[v5,1/3] usb: dwc3: Track DWC_usb31 VERSIONTYPE

Message ID 622262de3da148ecccbed5a82406421b213c997e.1541648784.git.thinhn@synopsys.com (mailing list archive)
State Superseded
Headers show
Series usb: dwc3: Workaround isoc start_transfer failure | expand

Commit Message

Thinh Nguyen Nov. 8, 2018, 3:51 a.m. UTC
Add a new field to dwc3 structure to track VERSIONTYPE. The VERSIONTYPE
is represented in ASCII in the 32-bit VERSIONTYPE register. In
DWC_usb31, sub releases for each version are tracked with VERSIONTYPE
such as "ea01" and "ea02".

Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
---
 drivers/usb/dwc3/core.c | 1 +
 drivers/usb/dwc3/core.h | 5 +++++
 2 files changed, 6 insertions(+)

Comments

Felipe Balbi Nov. 8, 2018, 7:10 a.m. UTC | #1
Hi,

Thinh Nguyen <thinh.nguyen@synopsys.com> writes:
> Add a new field to dwc3 structure to track VERSIONTYPE. The VERSIONTYPE
> is represented in ASCII in the 32-bit VERSIONTYPE register. In
> DWC_usb31, sub releases for each version are tracked with VERSIONTYPE
> such as "ea01" and "ea02".
>
> Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
> ---
>  drivers/usb/dwc3/core.c | 1 +
>  drivers/usb/dwc3/core.h | 5 +++++
>  2 files changed, 6 insertions(+)
>
> diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
> index becfbb87f791..437816ff8860 100644
> --- a/drivers/usb/dwc3/core.c
> +++ b/drivers/usb/dwc3/core.c
> @@ -702,6 +702,7 @@ static bool dwc3_core_is_valid(struct dwc3 *dwc)
>  		/* Detected DWC_usb31 IP */
>  		dwc->revision = dwc3_readl(dwc->regs, DWC3_VER_NUMBER);
>  		dwc->revision |= DWC3_REVISION_IS_DWC31;
> +		dwc->version_type = dwc3_readl(dwc->regs, DWC3_VER_TYPE);
>  	} else {
>  		return false;
>  	}
> diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
> index 5bfb62533e0f..4573e1bfd56e 100644
> --- a/drivers/usb/dwc3/core.h
> +++ b/drivers/usb/dwc3/core.h
> @@ -918,6 +918,7 @@ struct dwc3_scratchpad_array {
>   * @u1u2: only used on revisions <1.83a for workaround
>   * @maximum_speed: maximum speed requested (mainly for testing purposes)
>   * @revision: revision register contents
> + * @version_type: VERSIONTYPE register contents, a sub release of a revision
>   * @dr_mode: requested mode of operation
>   * @current_dr_role: current role of operation when in dual-role mode
>   * @desired_dr_role: desired role of operation when in dual-role mode
> @@ -1104,6 +1105,10 @@ struct dwc3 {
>  #define DWC3_USB31_REVISION_110A	(0x3131302a | DWC3_REVISION_IS_DWC31)
>  #define DWC3_USB31_REVISION_120A	(0x3132302a | DWC3_REVISION_IS_DWC31)
>  
> +	u32			version_type;
> +
> +#define DWC31_VERSIONTYPE_EA01		0x65613031

on patch 2 you talk about ea06, why don't you have a define for all
those version types?
Thinh Nguyen Nov. 8, 2018, 7:41 p.m. UTC | #2
Hi Felipe,

On 11/7/2018 11:10 PM, Felipe Balbi wrote:
> Hi,
>
> Thinh Nguyen <thinh.nguyen@synopsys.com> writes:
>> Add a new field to dwc3 structure to track VERSIONTYPE. The VERSIONTYPE
>> is represented in ASCII in the 32-bit VERSIONTYPE register. In
>> DWC_usb31, sub releases for each version are tracked with VERSIONTYPE
>> such as "ea01" and "ea02".
>>
>> Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
>> ---
>>  drivers/usb/dwc3/core.c | 1 +
>>  drivers/usb/dwc3/core.h | 5 +++++
>>  2 files changed, 6 insertions(+)
>>
>> diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
>> index becfbb87f791..437816ff8860 100644
>> --- a/drivers/usb/dwc3/core.c
>> +++ b/drivers/usb/dwc3/core.c
>> @@ -702,6 +702,7 @@ static bool dwc3_core_is_valid(struct dwc3 *dwc)
>>  		/* Detected DWC_usb31 IP */
>>  		dwc->revision = dwc3_readl(dwc->regs, DWC3_VER_NUMBER);
>>  		dwc->revision |= DWC3_REVISION_IS_DWC31;
>> +		dwc->version_type = dwc3_readl(dwc->regs, DWC3_VER_TYPE);
>>  	} else {
>>  		return false;
>>  	}
>> diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
>> index 5bfb62533e0f..4573e1bfd56e 100644
>> --- a/drivers/usb/dwc3/core.h
>> +++ b/drivers/usb/dwc3/core.h
>> @@ -918,6 +918,7 @@ struct dwc3_scratchpad_array {
>>   * @u1u2: only used on revisions <1.83a for workaround
>>   * @maximum_speed: maximum speed requested (mainly for testing purposes)
>>   * @revision: revision register contents
>> + * @version_type: VERSIONTYPE register contents, a sub release of a revision
>>   * @dr_mode: requested mode of operation
>>   * @current_dr_role: current role of operation when in dual-role mode
>>   * @desired_dr_role: desired role of operation when in dual-role mode
>> @@ -1104,6 +1105,10 @@ struct dwc3 {
>>  #define DWC3_USB31_REVISION_110A	(0x3131302a | DWC3_REVISION_IS_DWC31)
>>  #define DWC3_USB31_REVISION_120A	(0x3132302a | DWC3_REVISION_IS_DWC31)
>>  
>> +	u32			version_type;
>> +
>> +#define DWC31_VERSIONTYPE_EA01		0x65613031
> on patch 2 you talk about ea06, why don't you have a define for all
> those version types?
>
>
Sure. I can do that.

Thinh
diff mbox series

Patch

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index becfbb87f791..437816ff8860 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -702,6 +702,7 @@  static bool dwc3_core_is_valid(struct dwc3 *dwc)
 		/* Detected DWC_usb31 IP */
 		dwc->revision = dwc3_readl(dwc->regs, DWC3_VER_NUMBER);
 		dwc->revision |= DWC3_REVISION_IS_DWC31;
+		dwc->version_type = dwc3_readl(dwc->regs, DWC3_VER_TYPE);
 	} else {
 		return false;
 	}
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 5bfb62533e0f..4573e1bfd56e 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -918,6 +918,7 @@  struct dwc3_scratchpad_array {
  * @u1u2: only used on revisions <1.83a for workaround
  * @maximum_speed: maximum speed requested (mainly for testing purposes)
  * @revision: revision register contents
+ * @version_type: VERSIONTYPE register contents, a sub release of a revision
  * @dr_mode: requested mode of operation
  * @current_dr_role: current role of operation when in dual-role mode
  * @desired_dr_role: desired role of operation when in dual-role mode
@@ -1104,6 +1105,10 @@  struct dwc3 {
 #define DWC3_USB31_REVISION_110A	(0x3131302a | DWC3_REVISION_IS_DWC31)
 #define DWC3_USB31_REVISION_120A	(0x3132302a | DWC3_REVISION_IS_DWC31)
 
+	u32			version_type;
+
+#define DWC31_VERSIONTYPE_EA01		0x65613031
+
 	enum dwc3_ep0_next	ep0_next_event;
 	enum dwc3_ep0_state	ep0state;
 	enum dwc3_link_state	link_state;