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* [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey
@ 2016-08-04  2:16 Jin Guojun
  2016-08-08  7:10 ` Jinguojun
  0 siblings, 1 reply; 7+ messages in thread
From: Jin Guojun @ 2016-08-04  2:16 UTC (permalink / raw)
  To: linux-mmc, linux-kernel, linux-arm-kernel, kid.jin, ulf.hansson,
	adrian.hunter, jh80.chung, wsa+renesas, arnd, rmk+kernel,
	shawn.lin
  Cc: guodong.xu, kongfei, suzhuangluan

mmc: dw_mmc-k3: Hisilicon Hikey have no tuning function in 
dw_mmc-k3.c,so we must do the tuning function stub when we init UHS card.

V1:add .prepare_command in dw_mmc.c
V2:delete .prepare_command, add err = 0 in dw_mci_execute_tuning
V3:delete err = 0 in dw_mci_execute_tuning,add .execute_tuning in 
dw_mmc-k3.c
V4:add "linux-mmc@vger.kernel.org", patch version, Changelog, etc..

Signed-off-by: Jin Guojun <kid.jin@hisilicon.com>
---
 drivers/mmc/host/dw_mmc-k3.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
index 8e9d886..6247894 100644
--- a/drivers/mmc/host/dw_mmc-k3.c
+++ b/drivers/mmc/host/dw_mmc-k3.c
@@ -131,11 +131,17 @@ static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios)
 	host->bus_hz = clk_get_rate(host->biu_clk);
 }
 
+static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
+{
+	return 0;
+}
+
 static const struct dw_mci_drv_data hi6220_data = {
 	.caps			= dw_mci_hi6220_caps,
 	.switch_voltage		= dw_mci_hi6220_switch_voltage,
 	.set_ios		= dw_mci_hi6220_set_ios,
 	.parse_dt		= dw_mci_hi6220_parse_dt,
+	.execute_tuning		= dw_mci_hi6220_execute_tuning,
 };
 
 static const struct of_device_id dw_mci_k3_match[] = {
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 7+ messages in thread

* Re: [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey
  2016-08-04  2:16 [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey Jin Guojun
@ 2016-08-08  7:10 ` Jinguojun
  2016-08-08  9:10   ` Shawn Lin
  0 siblings, 1 reply; 7+ messages in thread
From: Jinguojun @ 2016-08-08  7:10 UTC (permalink / raw)
  To: linux-mmc, linux-kernel, linux-arm-kernel, ulf.hansson,
	adrian.hunter, jh80.chung, wsa+renesas, arnd, rmk+kernel,
	shawn.lin
  Cc: guodong.xu, kongfei, suzhuangluan

Hi,maintainers

Pls help to review code,this is the newest patch after your advise

Thx
On 2016/8/4 10:16, Jin Guojun wrote:
> mmc: dw_mmc-k3: Hisilicon Hikey have no tuning function in 
> dw_mmc-k3.c,so we must do the tuning function stub when we init UHS card.
> 
> V1:add .prepare_command in dw_mmc.c
> V2:delete .prepare_command, add err = 0 in dw_mci_execute_tuning
> V3:delete err = 0 in dw_mci_execute_tuning,add .execute_tuning in 
> dw_mmc-k3.c
> V4:add "linux-mmc@vger.kernel.org", patch version, Changelog, etc..
> 
> Signed-off-by: Jin Guojun <kid.jin@hisilicon.com>
> ---
>  drivers/mmc/host/dw_mmc-k3.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
> index 8e9d886..6247894 100644
> --- a/drivers/mmc/host/dw_mmc-k3.c
> +++ b/drivers/mmc/host/dw_mmc-k3.c
> @@ -131,11 +131,17 @@ static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios)
>  	host->bus_hz = clk_get_rate(host->biu_clk);
>  }
>  
> +static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
> +{
> +	return 0;
> +}
> +
>  static const struct dw_mci_drv_data hi6220_data = {
>  	.caps			= dw_mci_hi6220_caps,
>  	.switch_voltage		= dw_mci_hi6220_switch_voltage,
>  	.set_ios		= dw_mci_hi6220_set_ios,
>  	.parse_dt		= dw_mci_hi6220_parse_dt,
> +	.execute_tuning		= dw_mci_hi6220_execute_tuning,
>  };
>  
>  static const struct of_device_id dw_mci_k3_match[] = {
> 

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey
  2016-08-08  7:10 ` Jinguojun
@ 2016-08-08  9:10   ` Shawn Lin
  2016-08-08 10:46     ` Jaehoon Chung
  0 siblings, 1 reply; 7+ messages in thread
From: Shawn Lin @ 2016-08-08  9:10 UTC (permalink / raw)
  To: Jinguojun, linux-mmc, linux-kernel, linux-arm-kernel,
	ulf.hansson, adrian.hunter, jh80.chung, wsa+renesas, arnd,
	rmk+kernel, shawn.lin
  Cc: shawn.lin, guodong.xu, kongfei, suzhuangluan

Hi guy,

On 2016/8/8 15:10, Jinguojun wrote:
> Hi,maintainers
>
> Pls help to review code,this is the newest patch after your advise
>

Please give Jaehoon more time to review your patch before sending a
ping or resending one(~2 weeks), as it's only four days(weekend
included) since v4 was done....IMHO, it's quite bold...

> Thx
> On 2016/8/4 10:16, Jin Guojun wrote:
>> mmc: dw_mmc-k3: Hisilicon Hikey have no tuning function in
>> dw_mmc-k3.c,so we must do the tuning function stub when we init UHS card.
>>

Hrmmm....  remove "mmc: dw_mmc-k3:" from the meat of commit msg。

And you do nothing for dw_mci_hi6220_execute_tuning, why?
Could you elaborate more..


>> V1:add .prepare_command in dw_mmc.c
>> V2:delete .prepare_command, add err = 0 in dw_mci_execute_tuning
>> V3:delete err = 0 in dw_mci_execute_tuning,add .execute_tuning in
>> dw_mmc-k3.c
>> V4:add "linux-mmc@vger.kernel.org", patch version, Changelog, etc..

The changelog is totally wrong, namely it should not be listed in the
commit msg...

>>
>> Signed-off-by: Jin Guojun <kid.jin@hisilicon.com>
>> ---
>>  drivers/mmc/host/dw_mmc-k3.c | 6 ++++++
>>  1 file changed, 6 insertions(+)
>>
>> diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
>> index 8e9d886..6247894 100644
>> --- a/drivers/mmc/host/dw_mmc-k3.c
>> +++ b/drivers/mmc/host/dw_mmc-k3.c
>> @@ -131,11 +131,17 @@ static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios)
>>  	host->bus_hz = clk_get_rate(host->biu_clk);
>>  }
>>
>> +static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
>> +{
>> +	return 0;
>> +}
>> +
>>  static const struct dw_mci_drv_data hi6220_data = {
>>  	.caps			= dw_mci_hi6220_caps,
>>  	.switch_voltage		= dw_mci_hi6220_switch_voltage,
>>  	.set_ios		= dw_mci_hi6220_set_ios,
>>  	.parse_dt		= dw_mci_hi6220_parse_dt,
>> +	.execute_tuning		= dw_mci_hi6220_execute_tuning,
>>  };
>>
>>  static const struct of_device_id dw_mci_k3_match[] = {
>>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>


-- 
Best Regards
Shawn Lin

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey
  2016-08-08  9:10   ` Shawn Lin
@ 2016-08-08 10:46     ` Jaehoon Chung
  2016-08-17  6:11       ` Jinguojun
  0 siblings, 1 reply; 7+ messages in thread
From: Jaehoon Chung @ 2016-08-08 10:46 UTC (permalink / raw)
  To: Shawn Lin, Jinguojun, linux-mmc, linux-kernel, linux-arm-kernel,
	ulf.hansson, adrian.hunter, wsa+renesas, arnd, rmk+kernel
  Cc: guodong.xu, kongfei, suzhuangluan

Hi,

On 08/08/2016 06:10 PM, Shawn Lin wrote:
> Hi guy,
> 
> On 2016/8/8 15:10, Jinguojun wrote:
>> Hi,maintainers
>>
>> Pls help to review code,this is the newest patch after your advise

Subject..

s/UHS-SD/UHS-I/

>>
> 
> Please give Jaehoon more time to review your patch before sending a
> ping or resending one(~2 weeks), as it's only four days(weekend
> included) since v4 was done....IMHO, it's quite bold...
> 
>> Thx
>> On 2016/8/4 10:16, Jin Guojun wrote:
>>> mmc: dw_mmc-k3: Hisilicon Hikey have no tuning function in
>>> dw_mmc-k3.c,so we must do the tuning function stub when we init UHS card.
>>>
> 
> Hrmmm....  remove "mmc: dw_mmc-k3:" from the meat of commit msg。
> 
> And you do nothing for dw_mci_hi6220_execute_tuning, why?
> Could you elaborate more..
> 
> 
>>> V1:add .prepare_command in dw_mmc.c
>>> V2:delete .prepare_command, add err = 0 in dw_mci_execute_tuning
>>> V3:delete err = 0 in dw_mci_execute_tuning,add .execute_tuning in
>>> dw_mmc-k3.c
>>> V4:add "linux-mmc@vger.kernel.org", patch version, Changelog, etc..
> 
> The changelog is totally wrong, namely it should not be listed in the
> commit msg...
> 
>>>
>>> Signed-off-by: Jin Guojun <kid.jin@hisilicon.com>
>>> ---
>>>  drivers/mmc/host/dw_mmc-k3.c | 6 ++++++
>>>  1 file changed, 6 insertions(+)
>>>
>>> diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
>>> index 8e9d886..6247894 100644
>>> --- a/drivers/mmc/host/dw_mmc-k3.c
>>> +++ b/drivers/mmc/host/dw_mmc-k3.c
>>> @@ -131,11 +131,17 @@ static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios)
>>>      host->bus_hz = clk_get_rate(host->biu_clk);
>>>  }
>>>
>>> +static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
>>> +{
>>> +    return 0;
>>> +}


All of UHS-I cards didn't need to do tuning sequence on your SoC? it's strange.

I think we can fix more exactly in dw_mmc.c
As i know, some UHS cards don't need to send the tuning sequence.
(If i know wrong, let me know plz.)

But just skipping execute_tuning..I think it's not correct.

Best Regards,
Jaehoon Chung

>>> +
>>>  static const struct dw_mci_drv_data hi6220_data = {
>>>      .caps            = dw_mci_hi6220_caps,
>>>      .switch_voltage        = dw_mci_hi6220_switch_voltage,
>>>      .set_ios        = dw_mci_hi6220_set_ios,
>>>      .parse_dt        = dw_mci_hi6220_parse_dt,
>>> +    .execute_tuning        = dw_mci_hi6220_execute_tuning,
>>>  };
>>>
>>>  static const struct of_device_id dw_mci_k3_match[] = {
>>>
>>
>> -- 
>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
> 
> 

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey
  2016-08-08 10:46     ` Jaehoon Chung
@ 2016-08-17  6:11       ` Jinguojun
  2016-08-17  7:20         ` Jaehoon Chung
  0 siblings, 1 reply; 7+ messages in thread
From: Jinguojun @ 2016-08-17  6:11 UTC (permalink / raw)
  To: Jaehoon Chung, Shawn Lin, linux-mmc, linux-kernel,
	linux-arm-kernel, ulf.hansson, adrian.hunter, wsa+renesas, arnd,
	rmk+kernel
  Cc: guodong.xu, kongfei, suzhuangluan

Hi

On 2016/8/8 18:46, Jaehoon Chung wrote:
> Hi,
> 
> On 08/08/2016 06:10 PM, Shawn Lin wrote:
>> Hi guy,
>>
>> On 2016/8/8 15:10, Jinguojun wrote:
>>> Hi,maintainers
>>>
>>> Pls help to review code,this is the newest patch after your advise
> 
> Subject..
> 
> s/UHS-SD/UHS-I/
> 
>>>
>>
>> Please give Jaehoon more time to review your patch before sending a
>> ping or resending one(~2 weeks), as it's only four days(weekend
>> included) since v4 was done....IMHO, it's quite bold...
>>
>>> Thx
I apologize for my rudeness.
>>> On 2016/8/4 10:16, Jin Guojun wrote:
>>>> mmc: dw_mmc-k3: Hisilicon Hikey have no tuning function in
>>>> dw_mmc-k3.c,so we must do the tuning function stub when we init UHS card.
>>>>
>>
>> Hrmmm....  remove "mmc: dw_mmc-k3:" from the meat of commit msg。
>>
>> And you do nothing for dw_mci_hi6220_execute_tuning, why?
>> Could you elaborate more..
>>
>>
OK I'll remove the mmc: dw_mmc-k3:,Then Hikey can't support SDR104,so we only support SDR12 SDR25 SD50,and we do not need to do tuning for these modes.
>>>> V1:add .prepare_command in dw_mmc.c
>>>> V2:delete .prepare_command, add err = 0 in dw_mci_execute_tuning
>>>> V3:delete err = 0 in dw_mci_execute_tuning,add .execute_tuning in
>>>> dw_mmc-k3.c
>>>> V4:add "linux-mmc@vger.kernel.org", patch version, Changelog, etc..
>>
>> The changelog is totally wrong, namely it should not be listed in the
>> commit msg...
>>
OK I'll delete this part
>>>>
>>>> Signed-off-by: Jin Guojun <kid.jin@hisilicon.com>
>>>> ---
>>>>  drivers/mmc/host/dw_mmc-k3.c | 6 ++++++
>>>>  1 file changed, 6 insertions(+)
>>>>
>>>> diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
>>>> index 8e9d886..6247894 100644
>>>> --- a/drivers/mmc/host/dw_mmc-k3.c
>>>> +++ b/drivers/mmc/host/dw_mmc-k3.c
>>>> @@ -131,11 +131,17 @@ static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios)
>>>>      host->bus_hz = clk_get_rate(host->biu_clk);
>>>>  }
>>>>
>>>> +static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
>>>> +{
>>>> +    return 0;
>>>> +}
> 
> 
> All of UHS-I cards didn't need to do tuning sequence on your SoC? it's strange.
> 
> I think we can fix more exactly in dw_mmc.c
> As i know, some UHS cards don't need to send the tuning sequence.
> (If i know wrong, let me know plz.)
> 
> But just skipping execute_tuning..I think it's not correct.
> 
> Best Regards,
> Jaehoon Chung
> 
We cant support SDR104 currently.We only turn on SDR12 SDR25 SDR50.
>>>> +
>>>>  static const struct dw_mci_drv_data hi6220_data = {
>>>>      .caps            = dw_mci_hi6220_caps,
>>>>      .switch_voltage        = dw_mci_hi6220_switch_voltage,
>>>>      .set_ios        = dw_mci_hi6220_set_ios,
>>>>      .parse_dt        = dw_mci_hi6220_parse_dt,
>>>> +    .execute_tuning        = dw_mci_hi6220_execute_tuning,
>>>>  };
>>>>
>>>>  static const struct of_device_id dw_mci_k3_match[] = {
>>>>
>>>
>>> -- 
>>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>>
>>
>>
> 
> 
> .
> 

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey
  2016-08-17  6:11       ` Jinguojun
@ 2016-08-17  7:20         ` Jaehoon Chung
  2016-08-23  9:00           ` Jinguojun
  0 siblings, 1 reply; 7+ messages in thread
From: Jaehoon Chung @ 2016-08-17  7:20 UTC (permalink / raw)
  To: Jinguojun, Shawn Lin, linux-mmc, linux-kernel, linux-arm-kernel,
	ulf.hansson, adrian.hunter, wsa+renesas, arnd, rmk+kernel
  Cc: guodong.xu, kongfei, suzhuangluan

On 08/17/2016 03:11 PM, Jinguojun wrote:
> Hi
> 
> On 2016/8/8 18:46, Jaehoon Chung wrote:
>> Hi,
>>
>> On 08/08/2016 06:10 PM, Shawn Lin wrote:
>>> Hi guy,
>>>
>>> On 2016/8/8 15:10, Jinguojun wrote:
>>>> Hi,maintainers
>>>>
>>>> Pls help to review code,this is the newest patch after your advise
>>
>> Subject..
>>
>> s/UHS-SD/UHS-I/
>>
>>>>
>>>
>>> Please give Jaehoon more time to review your patch before sending a
>>> ping or resending one(~2 weeks), as it's only four days(weekend
>>> included) since v4 was done....IMHO, it's quite bold...
>>>
>>>> Thx
> I apologize for my rudeness.

Don't mind. Feel free to tell me anytime! :)

>>>> On 2016/8/4 10:16, Jin Guojun wrote:
>>>>> mmc: dw_mmc-k3: Hisilicon Hikey have no tuning function in
>>>>> dw_mmc-k3.c,so we must do the tuning function stub when we init UHS card.
>>>>>
>>>
>>> Hrmmm....  remove "mmc: dw_mmc-k3:" from the meat of commit msg。
>>>
>>> And you do nothing for dw_mci_hi6220_execute_tuning, why?
>>> Could you elaborate more..
>>>
>>>
> OK I'll remove the mmc: dw_mmc-k3:,Then Hikey can't support SDR104,so we only support SDR12 SDR25 SD50,and we do not need to do tuning for these modes.
>>>>> V1:add .prepare_command in dw_mmc.c
>>>>> V2:delete .prepare_command, add err = 0 in dw_mci_execute_tuning
>>>>> V3:delete err = 0 in dw_mci_execute_tuning,add .execute_tuning in
>>>>> dw_mmc-k3.c
>>>>> V4:add "linux-mmc@vger.kernel.org", patch version, Changelog, etc..
>>>
>>> The changelog is totally wrong, namely it should not be listed in the
>>> commit msg...
>>>
> OK I'll delete this part
>>>>>
>>>>> Signed-off-by: Jin Guojun <kid.jin@hisilicon.com>
>>>>> ---
>>>>>  drivers/mmc/host/dw_mmc-k3.c | 6 ++++++
>>>>>  1 file changed, 6 insertions(+)
>>>>>
>>>>> diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
>>>>> index 8e9d886..6247894 100644
>>>>> --- a/drivers/mmc/host/dw_mmc-k3.c
>>>>> +++ b/drivers/mmc/host/dw_mmc-k3.c
>>>>> @@ -131,11 +131,17 @@ static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios)
>>>>>      host->bus_hz = clk_get_rate(host->biu_clk);
>>>>>  }
>>>>>
>>>>> +static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
>>>>> +{
>>>>> +    return 0;
>>>>> +}
>>
>>
>> All of UHS-I cards didn't need to do tuning sequence on your SoC? it's strange.
>>
>> I think we can fix more exactly in dw_mmc.c
>> As i know, some UHS cards don't need to send the tuning sequence.
>> (If i know wrong, let me know plz.)
>>
>> But just skipping execute_tuning..I think it's not correct.
>>
>> Best Regards,
>> Jaehoon Chung
>>
> We cant support SDR104 currently.We only turn on SDR12 SDR25 SDR50.

I will send the patch for execute_tuning in dwmmc.c within this week.
After that, could you check that patch? I will add your email to CC. How about?

I think it's better than using the dummy function. :)

Best Regards,
Jaehoon Chung

>>>>> +
>>>>>  static const struct dw_mci_drv_data hi6220_data = {
>>>>>      .caps            = dw_mci_hi6220_caps,
>>>>>      .switch_voltage        = dw_mci_hi6220_switch_voltage,
>>>>>      .set_ios        = dw_mci_hi6220_set_ios,
>>>>>      .parse_dt        = dw_mci_hi6220_parse_dt,
>>>>> +    .execute_tuning        = dw_mci_hi6220_execute_tuning,
>>>>>  };
>>>>>
>>>>>  static const struct of_device_id dw_mci_k3_match[] = {
>>>>>
>>>>
>>>> -- 
>>>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
>>>> the body of a message to majordomo@vger.kernel.org
>>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>>>
>>>
>>>
>>
>>
>> .
>>
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
> 

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey
  2016-08-17  7:20         ` Jaehoon Chung
@ 2016-08-23  9:00           ` Jinguojun
  0 siblings, 0 replies; 7+ messages in thread
From: Jinguojun @ 2016-08-23  9:00 UTC (permalink / raw)
  To: Jaehoon Chung, Shawn Lin, linux-mmc, linux-kernel,
	linux-arm-kernel, ulf.hansson, adrian.hunter, wsa+renesas, arnd,
	rmk+kernel
  Cc: guodong.xu, kongfei, suzhuangluan

Hi

On 2016/8/17 15:20, Jaehoon Chung wrote:
> On 08/17/2016 03:11 PM, Jinguojun wrote:
>> Hi
>>
>> On 2016/8/8 18:46, Jaehoon Chung wrote:
>>> Hi,
>>>
>>> On 08/08/2016 06:10 PM, Shawn Lin wrote:
>>>> Hi guy,
>>>>
>>>> On 2016/8/8 15:10, Jinguojun wrote:
>>>>> Hi,maintainers
>>>>>
>>>>> Pls help to review code,this is the newest patch after your advise
>>>
>>> Subject..
>>>
>>> s/UHS-SD/UHS-I/
>>>
>>>>>
>>>>
>>>> Please give Jaehoon more time to review your patch before sending a
>>>> ping or resending one(~2 weeks), as it's only four days(weekend
>>>> included) since v4 was done....IMHO, it's quite bold...
>>>>
>>>>> Thx
>> I apologize for my rudeness.
> 
> Don't mind. Feel free to tell me anytime! :)
> 
>>>>> On 2016/8/4 10:16, Jin Guojun wrote:
>>>>>> mmc: dw_mmc-k3: Hisilicon Hikey have no tuning function in
>>>>>> dw_mmc-k3.c,so we must do the tuning function stub when we init UHS card.
>>>>>>
>>>>
>>>> Hrmmm....  remove "mmc: dw_mmc-k3:" from the meat of commit msg。
>>>>
>>>> And you do nothing for dw_mci_hi6220_execute_tuning, why?
>>>> Could you elaborate more..
>>>>
>>>>
>> OK I'll remove the mmc: dw_mmc-k3:,Then Hikey can't support SDR104,so we only support SDR12 SDR25 SD50,and we do not need to do tuning for these modes.
>>>>>> V1:add .prepare_command in dw_mmc.c
>>>>>> V2:delete .prepare_command, add err = 0 in dw_mci_execute_tuning
>>>>>> V3:delete err = 0 in dw_mci_execute_tuning,add .execute_tuning in
>>>>>> dw_mmc-k3.c
>>>>>> V4:add "linux-mmc@vger.kernel.org", patch version, Changelog, etc..
>>>>
>>>> The changelog is totally wrong, namely it should not be listed in the
>>>> commit msg...
>>>>
>> OK I'll delete this part
>>>>>>
>>>>>> Signed-off-by: Jin Guojun <kid.jin@hisilicon.com>
>>>>>> ---
>>>>>>  drivers/mmc/host/dw_mmc-k3.c | 6 ++++++
>>>>>>  1 file changed, 6 insertions(+)
>>>>>>
>>>>>> diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
>>>>>> index 8e9d886..6247894 100644
>>>>>> --- a/drivers/mmc/host/dw_mmc-k3.c
>>>>>> +++ b/drivers/mmc/host/dw_mmc-k3.c
>>>>>> @@ -131,11 +131,17 @@ static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios)
>>>>>>      host->bus_hz = clk_get_rate(host->biu_clk);
>>>>>>  }
>>>>>>
>>>>>> +static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
>>>>>> +{
>>>>>> +    return 0;
>>>>>> +}
>>>
>>>
>>> All of UHS-I cards didn't need to do tuning sequence on your SoC? it's strange.
>>>
>>> I think we can fix more exactly in dw_mmc.c
>>> As i know, some UHS cards don't need to send the tuning sequence.
>>> (If i know wrong, let me know plz.)
>>>
>>> But just skipping execute_tuning..I think it's not correct.
>>>
>>> Best Regards,
>>> Jaehoon Chung
>>>
>> We cant support SDR104 currently.We only turn on SDR12 SDR25 SDR50.
> 
> I will send the patch for execute_tuning in dwmmc.c within this week.
> After that, could you check that patch? I will add your email to CC. How about?
> 
> I think it's better than using the dummy function. :)
> 
> Best Regards,
> Jaehoon Chung
> 
OK when you finish the patch,pls give me the modefy
thx
>>>>>> +
>>>>>>  static const struct dw_mci_drv_data hi6220_data = {
>>>>>>      .caps            = dw_mci_hi6220_caps,
>>>>>>      .switch_voltage        = dw_mci_hi6220_switch_voltage,
>>>>>>      .set_ios        = dw_mci_hi6220_set_ios,
>>>>>>      .parse_dt        = dw_mci_hi6220_parse_dt,
>>>>>> +    .execute_tuning        = dw_mci_hi6220_execute_tuning,
>>>>>>  };
>>>>>>
>>>>>>  static const struct of_device_id dw_mci_k3_match[] = {
>>>>>>
>>>>>
>>>>> -- 
>>>>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
>>>>> the body of a message to majordomo@vger.kernel.org
>>>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>>>>
>>>>
>>>>
>>>
>>>
>>> .
>>>
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>>
>>
> 
> 
> .
> 

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2016-08-23  9:01 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-08-04  2:16 [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey Jin Guojun
2016-08-08  7:10 ` Jinguojun
2016-08-08  9:10   ` Shawn Lin
2016-08-08 10:46     ` Jaehoon Chung
2016-08-17  6:11       ` Jinguojun
2016-08-17  7:20         ` Jaehoon Chung
2016-08-23  9:00           ` Jinguojun

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