diff mbox series

dfu: sf: rely on DT for spi speed and mode

Message ID 20240917-uboot-topic-dfu-sf-dt-v1-1-8cf38451eea4@linaro.org
State Superseded
Headers show
Series dfu: sf: rely on DT for spi speed and mode | expand

Commit Message

Neil Armstrong Sept. 17, 2024, 12:24 p.m. UTC
Align with cmd_sf, and try to rely on DT for spi speed and mode,
and still fallback on spi_flash_probe() if it fails.

With the current scheme, spi_flash_probe() will be called
with CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
with are set to 0 by default on DT platforms using DM_SPI_FLASH.

Like cmd_sf, keep the option to specify the speed and mode
from the dfu_alt_mode string, but rely on DT properties
if not specified.

Using CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
makes the SPIFC controller on Amlogic Meson G12B & SM1
hardware fail and is unable to recover until a system reboot.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 drivers/dfu/dfu_sf.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)


---
base-commit: 19dbc09405d3503ce3efef3c2e4b4f0f1a03372d
change-id: 20240917-uboot-topic-dfu-sf-dt-8ae62e5c7d79

Best regards,

Comments

Mattijs Korpershoek Oct. 1, 2024, 8:52 a.m. UTC | #1
Hi Neil,

Thank you for the patch and sorry the review delay.

On mar., sept. 17, 2024 at 14:24, Neil Armstrong <neil.armstrong@linaro.org> wrote:

> Align with cmd_sf, and try to rely on DT for spi speed and mode,
> and still fallback on spi_flash_probe() if it fails.
>
> With the current scheme, spi_flash_probe() will be called
> with CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
> with are set to 0 by default on DT platforms using DM_SPI_FLASH.
>
> Like cmd_sf, keep the option to specify the speed and mode
> from the dfu_alt_mode string, but rely on DT properties
> if not specified.
>
> Using CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
> makes the SPIFC controller on Amlogic Meson G12B & SM1
> hardware fail and is unable to recover until a system reboot.
>
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>  drivers/dfu/dfu_sf.c | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>
> diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c
> index 7c1c0f9e2dc..b5d875be5ea 100644
> --- a/drivers/dfu/dfu_sf.c
> +++ b/drivers/dfu/dfu_sf.c
> @@ -123,6 +123,9 @@ static struct spi_flash *parse_dev(char *devstr)
>  	unsigned int mode = CONFIG_SF_DEFAULT_MODE;
>  	char *s, *endp;
>  	struct spi_flash *dev;
> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
> +	bool use_dt = true;
> +#endif

Can we use if (IS_ENABLED(CONFIG...)) for this logic instead of #if ?

checkpatch.pl seems to warn about this:

$ ./scripts/checkpatch.pl --u-boot --git HEAD^..HEAD
WARNING: Use 'if (IS_ENABLED(CONFIG...))' instead of '#if or #ifdef' where possible
#36: FILE: drivers/dfu/dfu_sf.c:126:
+#if CONFIG_IS_ENABLED(DM_SPI_FLASH)

I know we will have an unused local variable (use_dt) when
DM_SPI_FLASH=n but to me that is fine.
We already have unused local variables based on KConfig symbols in
dfu_flush_medium_sf()

Thanks,
Mattijs

>  
>  	s = strsep(&devstr, ":");
>  	if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) {
> @@ -143,6 +146,9 @@ static struct spi_flash *parse_dev(char *devstr)
>  			printf("Invalid SPI speed %s\n", s);
>  			return NULL;
>  		}
> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
> +		use_dt = false;
> +#endif
>  	}
>  
>  	s = strsep(&devstr, ":");
> @@ -152,9 +158,25 @@ static struct spi_flash *parse_dev(char *devstr)
>  			printf("Invalid SPI mode %s\n", s);
>  			return NULL;
>  		}
> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
> +		use_dt = false;
> +#endif
>  	}
>  
> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
> +	if (use_dt) {
> +		struct udevice *new;
> +
> +		if (!spi_flash_probe_bus_cs(bus, cs, &new))
> +			dev = dev_get_uclass_priv(new);
> +		else
> +			dev = NULL;
> +	} else {
> +		dev = spi_flash_probe(bus, cs, speed, mode);
> +	}
> +#else
>  	dev = spi_flash_probe(bus, cs, speed, mode);
> +#endif
>  	if (!dev) {
>  		printf("Failed to create SPI flash at %u:%u:%u:%u\n",
>  		       bus, cs, speed, mode);
>
> ---
> base-commit: 19dbc09405d3503ce3efef3c2e4b4f0f1a03372d
> change-id: 20240917-uboot-topic-dfu-sf-dt-8ae62e5c7d79
>
> Best regards,
> -- 
> Neil Armstrong <neil.armstrong@linaro.org>
Neil Armstrong Oct. 1, 2024, 10:01 a.m. UTC | #2
On 01/10/2024 10:52, Mattijs Korpershoek wrote:
> Hi Neil,
> 
> Thank you for the patch and sorry the review delay.
> 
> On mar., sept. 17, 2024 at 14:24, Neil Armstrong <neil.armstrong@linaro.org> wrote:
> 
>> Align with cmd_sf, and try to rely on DT for spi speed and mode,
>> and still fallback on spi_flash_probe() if it fails.
>>
>> With the current scheme, spi_flash_probe() will be called
>> with CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
>> with are set to 0 by default on DT platforms using DM_SPI_FLASH.
>>
>> Like cmd_sf, keep the option to specify the speed and mode
>> from the dfu_alt_mode string, but rely on DT properties
>> if not specified.
>>
>> Using CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
>> makes the SPIFC controller on Amlogic Meson G12B & SM1
>> hardware fail and is unable to recover until a system reboot.
>>
>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>> ---
>>   drivers/dfu/dfu_sf.c | 22 ++++++++++++++++++++++
>>   1 file changed, 22 insertions(+)
>>
>> diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c
>> index 7c1c0f9e2dc..b5d875be5ea 100644
>> --- a/drivers/dfu/dfu_sf.c
>> +++ b/drivers/dfu/dfu_sf.c
>> @@ -123,6 +123,9 @@ static struct spi_flash *parse_dev(char *devstr)
>>   	unsigned int mode = CONFIG_SF_DEFAULT_MODE;
>>   	char *s, *endp;
>>   	struct spi_flash *dev;
>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>> +	bool use_dt = true;
>> +#endif
> 
> Can we use if (IS_ENABLED(CONFIG...)) for this logic instead of #if ?
> 
> checkpatch.pl seems to warn about this:
> 
> $ ./scripts/checkpatch.pl --u-boot --git HEAD^..HEAD
> WARNING: Use 'if (IS_ENABLED(CONFIG...))' instead of '#if or #ifdef' where possible
> #36: FILE: drivers/dfu/dfu_sf.c:126:
> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
> 
> I know we will have an unused local variable (use_dt) when
> DM_SPI_FLASH=n but to me that is fine.
> We already have unused local variables based on KConfig symbols in
> dfu_flush_medium_sf()

Sure, let me check !

Neil

> 
> Thanks,
> Mattijs
> 
>>   
>>   	s = strsep(&devstr, ":");
>>   	if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) {
>> @@ -143,6 +146,9 @@ static struct spi_flash *parse_dev(char *devstr)
>>   			printf("Invalid SPI speed %s\n", s);
>>   			return NULL;
>>   		}
>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>> +		use_dt = false;
>> +#endif
>>   	}
>>   
>>   	s = strsep(&devstr, ":");
>> @@ -152,9 +158,25 @@ static struct spi_flash *parse_dev(char *devstr)
>>   			printf("Invalid SPI mode %s\n", s);
>>   			return NULL;
>>   		}
>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>> +		use_dt = false;
>> +#endif
>>   	}
>>   
>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>> +	if (use_dt) {
>> +		struct udevice *new;
>> +
>> +		if (!spi_flash_probe_bus_cs(bus, cs, &new))
>> +			dev = dev_get_uclass_priv(new);
>> +		else
>> +			dev = NULL;
>> +	} else {
>> +		dev = spi_flash_probe(bus, cs, speed, mode);
>> +	}
>> +#else
>>   	dev = spi_flash_probe(bus, cs, speed, mode);
>> +#endif
>>   	if (!dev) {
>>   		printf("Failed to create SPI flash at %u:%u:%u:%u\n",
>>   		       bus, cs, speed, mode);
>>
>> ---
>> base-commit: 19dbc09405d3503ce3efef3c2e4b4f0f1a03372d
>> change-id: 20240917-uboot-topic-dfu-sf-dt-8ae62e5c7d79
>>
>> Best regards,
>> -- 
>> Neil Armstrong <neil.armstrong@linaro.org>
Neil Armstrong Oct. 1, 2024, 10:13 a.m. UTC | #3
On 01/10/2024 12:01, Neil Armstrong wrote:
> On 01/10/2024 10:52, Mattijs Korpershoek wrote:
>> Hi Neil,
>>
>> Thank you for the patch and sorry the review delay.
>>
>> On mar., sept. 17, 2024 at 14:24, Neil Armstrong <neil.armstrong@linaro.org> wrote:
>>
>>> Align with cmd_sf, and try to rely on DT for spi speed and mode,
>>> and still fallback on spi_flash_probe() if it fails.
>>>
>>> With the current scheme, spi_flash_probe() will be called
>>> with CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
>>> with are set to 0 by default on DT platforms using DM_SPI_FLASH.
>>>
>>> Like cmd_sf, keep the option to specify the speed and mode
>>> from the dfu_alt_mode string, but rely on DT properties
>>> if not specified.
>>>
>>> Using CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
>>> makes the SPIFC controller on Amlogic Meson G12B & SM1
>>> hardware fail and is unable to recover until a system reboot.
>>>
>>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>>> ---
>>>   drivers/dfu/dfu_sf.c | 22 ++++++++++++++++++++++
>>>   1 file changed, 22 insertions(+)
>>>
>>> diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c
>>> index 7c1c0f9e2dc..b5d875be5ea 100644
>>> --- a/drivers/dfu/dfu_sf.c
>>> +++ b/drivers/dfu/dfu_sf.c
>>> @@ -123,6 +123,9 @@ static struct spi_flash *parse_dev(char *devstr)
>>>       unsigned int mode = CONFIG_SF_DEFAULT_MODE;
>>>       char *s, *endp;
>>>       struct spi_flash *dev;
>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>> +    bool use_dt = true;
>>> +#endif
>>
>> Can we use if (IS_ENABLED(CONFIG...)) for this logic instead of #if ?
>>
>> checkpatch.pl seems to warn about this:
>>
>> $ ./scripts/checkpatch.pl --u-boot --git HEAD^..HEAD
>> WARNING: Use 'if (IS_ENABLED(CONFIG...))' instead of '#if or #ifdef' where possible
>> #36: FILE: drivers/dfu/dfu_sf.c:126:
>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>
>> I know we will have an unused local variable (use_dt) when
>> DM_SPI_FLASH=n but to me that is fine.
>> We already have unused local variables based on KConfig symbols in
>> dfu_flush_medium_sf()
> 
> Sure, let me check !

OK so there's:
u-boot/drivers/dfu/dfu_sf.c: In function ‘parse_dev’:
u-boot-upstream/u-boot/drivers/dfu/dfu_sf.c:163:8: warning: implicit declaration of function ‘spi_flash_probe_bus_cs’; did you mean ‘spi_flash_protect’? [-Wimplicit-function-declaration]
   163 |   if (!spi_flash_probe_bus_cs(bus, cs, &new))
       |        ^~~~~~~~~~~~~~~~~~~~~~
       |        spi_flash_protect

because there's no dummy spi_flash_probe_bus_cs fallback when !DM_SPI_FLASH

Neil
> 
> Neil
> 
>>
>> Thanks,
>> Mattijs
>>
>>>       s = strsep(&devstr, ":");
>>>       if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) {
>>> @@ -143,6 +146,9 @@ static struct spi_flash *parse_dev(char *devstr)
>>>               printf("Invalid SPI speed %s\n", s);
>>>               return NULL;
>>>           }
>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>> +        use_dt = false;
>>> +#endif
>>>       }
>>>       s = strsep(&devstr, ":");
>>> @@ -152,9 +158,25 @@ static struct spi_flash *parse_dev(char *devstr)
>>>               printf("Invalid SPI mode %s\n", s);
>>>               return NULL;
>>>           }
>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>> +        use_dt = false;
>>> +#endif
>>>       }
>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>> +    if (use_dt) {
>>> +        struct udevice *new;
>>> +
>>> +        if (!spi_flash_probe_bus_cs(bus, cs, &new))
>>> +            dev = dev_get_uclass_priv(new);
>>> +        else
>>> +            dev = NULL;
>>> +    } else {
>>> +        dev = spi_flash_probe(bus, cs, speed, mode);
>>> +    }
>>> +#else
>>>       dev = spi_flash_probe(bus, cs, speed, mode);
>>> +#endif
>>>       if (!dev) {
>>>           printf("Failed to create SPI flash at %u:%u:%u:%u\n",
>>>                  bus, cs, speed, mode);
>>>
>>> ---
>>> base-commit: 19dbc09405d3503ce3efef3c2e4b4f0f1a03372d
>>> change-id: 20240917-uboot-topic-dfu-sf-dt-8ae62e5c7d79
>>>
>>> Best regards,
>>> -- 
>>> Neil Armstrong <neil.armstrong@linaro.org>
>
Mattijs Korpershoek Oct. 1, 2024, 12:02 p.m. UTC | #4
On mar., oct. 01, 2024 at 12:13, Neil Armstrong <neil.armstrong@linaro.org> wrote:

> On 01/10/2024 12:01, Neil Armstrong wrote:
>> On 01/10/2024 10:52, Mattijs Korpershoek wrote:
>>> Hi Neil,
>>>
>>> Thank you for the patch and sorry the review delay.
>>>
>>> On mar., sept. 17, 2024 at 14:24, Neil Armstrong <neil.armstrong@linaro.org> wrote:
>>>
>>>> Align with cmd_sf, and try to rely on DT for spi speed and mode,
>>>> and still fallback on spi_flash_probe() if it fails.
>>>>
>>>> With the current scheme, spi_flash_probe() will be called
>>>> with CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
>>>> with are set to 0 by default on DT platforms using DM_SPI_FLASH.
>>>>
>>>> Like cmd_sf, keep the option to specify the speed and mode
>>>> from the dfu_alt_mode string, but rely on DT properties
>>>> if not specified.
>>>>
>>>> Using CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
>>>> makes the SPIFC controller on Amlogic Meson G12B & SM1
>>>> hardware fail and is unable to recover until a system reboot.
>>>>
>>>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>>>> ---
>>>>   drivers/dfu/dfu_sf.c | 22 ++++++++++++++++++++++
>>>>   1 file changed, 22 insertions(+)
>>>>
>>>> diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c
>>>> index 7c1c0f9e2dc..b5d875be5ea 100644
>>>> --- a/drivers/dfu/dfu_sf.c
>>>> +++ b/drivers/dfu/dfu_sf.c
>>>> @@ -123,6 +123,9 @@ static struct spi_flash *parse_dev(char *devstr)
>>>>       unsigned int mode = CONFIG_SF_DEFAULT_MODE;
>>>>       char *s, *endp;
>>>>       struct spi_flash *dev;
>>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>> +    bool use_dt = true;
>>>> +#endif
>>>
>>> Can we use if (IS_ENABLED(CONFIG...)) for this logic instead of #if ?
>>>
>>> checkpatch.pl seems to warn about this:
>>>
>>> $ ./scripts/checkpatch.pl --u-boot --git HEAD^..HEAD
>>> WARNING: Use 'if (IS_ENABLED(CONFIG...))' instead of '#if or #ifdef' where possible
>>> #36: FILE: drivers/dfu/dfu_sf.c:126:
>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>
>>> I know we will have an unused local variable (use_dt) when
>>> DM_SPI_FLASH=n but to me that is fine.
>>> We already have unused local variables based on KConfig symbols in
>>> dfu_flush_medium_sf()
>> 
>> Sure, let me check !
>
> OK so there's:
> u-boot/drivers/dfu/dfu_sf.c: In function ‘parse_dev’:
> u-boot-upstream/u-boot/drivers/dfu/dfu_sf.c:163:8: warning: implicit declaration of function ‘spi_flash_probe_bus_cs’; did you mean ‘spi_flash_protect’? [-Wimplicit-function-declaration]
>    163 |   if (!spi_flash_probe_bus_cs(bus, cs, &new))
>        |        ^~~~~~~~~~~~~~~~~~~~~~
>        |        spi_flash_protect
>
> because there's no dummy spi_flash_probe_bus_cs fallback when !DM_SPI_FLASH

Ok,
Can we add a dummy function?

If you'd prefer not to, we can keep the #if block for that part and
use if (IS_ENABLED) on the other 3 occurences.

>
> Neil
>> 
>> Neil
>> 
>>>
>>> Thanks,
>>> Mattijs
>>>
>>>>       s = strsep(&devstr, ":");
>>>>       if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) {
>>>> @@ -143,6 +146,9 @@ static struct spi_flash *parse_dev(char *devstr)
>>>>               printf("Invalid SPI speed %s\n", s);
>>>>               return NULL;
>>>>           }
>>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>> +        use_dt = false;
>>>> +#endif
>>>>       }
>>>>       s = strsep(&devstr, ":");
>>>> @@ -152,9 +158,25 @@ static struct spi_flash *parse_dev(char *devstr)
>>>>               printf("Invalid SPI mode %s\n", s);
>>>>               return NULL;
>>>>           }
>>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>> +        use_dt = false;
>>>> +#endif
>>>>       }
>>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>> +    if (use_dt) {
>>>> +        struct udevice *new;
>>>> +
>>>> +        if (!spi_flash_probe_bus_cs(bus, cs, &new))
>>>> +            dev = dev_get_uclass_priv(new);
>>>> +        else
>>>> +            dev = NULL;
>>>> +    } else {
>>>> +        dev = spi_flash_probe(bus, cs, speed, mode);
>>>> +    }
>>>> +#else
>>>>       dev = spi_flash_probe(bus, cs, speed, mode);
>>>> +#endif
>>>>       if (!dev) {
>>>>           printf("Failed to create SPI flash at %u:%u:%u:%u\n",
>>>>                  bus, cs, speed, mode);
>>>>
>>>> ---
>>>> base-commit: 19dbc09405d3503ce3efef3c2e4b4f0f1a03372d
>>>> change-id: 20240917-uboot-topic-dfu-sf-dt-8ae62e5c7d79
>>>>
>>>> Best regards,
>>>> -- 
>>>> Neil Armstrong <neil.armstrong@linaro.org>
>>
Neil Armstrong Oct. 1, 2024, 2:09 p.m. UTC | #5
On 01/10/2024 14:02, Mattijs Korpershoek wrote:
> On mar., oct. 01, 2024 at 12:13, Neil Armstrong <neil.armstrong@linaro.org> wrote:
> 
>> On 01/10/2024 12:01, Neil Armstrong wrote:
>>> On 01/10/2024 10:52, Mattijs Korpershoek wrote:
>>>> Hi Neil,
>>>>
>>>> Thank you for the patch and sorry the review delay.
>>>>
>>>> On mar., sept. 17, 2024 at 14:24, Neil Armstrong <neil.armstrong@linaro.org> wrote:
>>>>
>>>>> Align with cmd_sf, and try to rely on DT for spi speed and mode,
>>>>> and still fallback on spi_flash_probe() if it fails.
>>>>>
>>>>> With the current scheme, spi_flash_probe() will be called
>>>>> with CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
>>>>> with are set to 0 by default on DT platforms using DM_SPI_FLASH.
>>>>>
>>>>> Like cmd_sf, keep the option to specify the speed and mode
>>>>> from the dfu_alt_mode string, but rely on DT properties
>>>>> if not specified.
>>>>>
>>>>> Using CONFIG_SF_DEFAULT_SPEED and CONFIG_SF_DEFAULT_MODE
>>>>> makes the SPIFC controller on Amlogic Meson G12B & SM1
>>>>> hardware fail and is unable to recover until a system reboot.
>>>>>
>>>>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>>>>> ---
>>>>>    drivers/dfu/dfu_sf.c | 22 ++++++++++++++++++++++
>>>>>    1 file changed, 22 insertions(+)
>>>>>
>>>>> diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c
>>>>> index 7c1c0f9e2dc..b5d875be5ea 100644
>>>>> --- a/drivers/dfu/dfu_sf.c
>>>>> +++ b/drivers/dfu/dfu_sf.c
>>>>> @@ -123,6 +123,9 @@ static struct spi_flash *parse_dev(char *devstr)
>>>>>        unsigned int mode = CONFIG_SF_DEFAULT_MODE;
>>>>>        char *s, *endp;
>>>>>        struct spi_flash *dev;
>>>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>>> +    bool use_dt = true;
>>>>> +#endif
>>>>
>>>> Can we use if (IS_ENABLED(CONFIG...)) for this logic instead of #if ?
>>>>
>>>> checkpatch.pl seems to warn about this:
>>>>
>>>> $ ./scripts/checkpatch.pl --u-boot --git HEAD^..HEAD
>>>> WARNING: Use 'if (IS_ENABLED(CONFIG...))' instead of '#if or #ifdef' where possible
>>>> #36: FILE: drivers/dfu/dfu_sf.c:126:
>>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>>
>>>> I know we will have an unused local variable (use_dt) when
>>>> DM_SPI_FLASH=n but to me that is fine.
>>>> We already have unused local variables based on KConfig symbols in
>>>> dfu_flush_medium_sf()
>>>
>>> Sure, let me check !
>>
>> OK so there's:
>> u-boot/drivers/dfu/dfu_sf.c: In function ‘parse_dev’:
>> u-boot-upstream/u-boot/drivers/dfu/dfu_sf.c:163:8: warning: implicit declaration of function ‘spi_flash_probe_bus_cs’; did you mean ‘spi_flash_protect’? [-Wimplicit-function-declaration]
>>     163 |   if (!spi_flash_probe_bus_cs(bus, cs, &new))
>>         |        ^~~~~~~~~~~~~~~~~~~~~~
>>         |        spi_flash_protect
>>
>> because there's no dummy spi_flash_probe_bus_cs fallback when !DM_SPI_FLASH
> 
> Ok,
> Can we add a dummy function?

We can, not sure about the strategy of the SPI FLASH Driver Model, but it
should be the default at some point, so let me add it.

Neil

> 
> If you'd prefer not to, we can keep the #if block for that part and
> use if (IS_ENABLED) on the other 3 occurences.
> 
>>
>> Neil
>>>
>>> Neil
>>>
>>>>
>>>> Thanks,
>>>> Mattijs
>>>>
>>>>>        s = strsep(&devstr, ":");
>>>>>        if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) {
>>>>> @@ -143,6 +146,9 @@ static struct spi_flash *parse_dev(char *devstr)
>>>>>                printf("Invalid SPI speed %s\n", s);
>>>>>                return NULL;
>>>>>            }
>>>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>>> +        use_dt = false;
>>>>> +#endif
>>>>>        }
>>>>>        s = strsep(&devstr, ":");
>>>>> @@ -152,9 +158,25 @@ static struct spi_flash *parse_dev(char *devstr)
>>>>>                printf("Invalid SPI mode %s\n", s);
>>>>>                return NULL;
>>>>>            }
>>>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>>> +        use_dt = false;
>>>>> +#endif
>>>>>        }
>>>>> +#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
>>>>> +    if (use_dt) {
>>>>> +        struct udevice *new;
>>>>> +
>>>>> +        if (!spi_flash_probe_bus_cs(bus, cs, &new))
>>>>> +            dev = dev_get_uclass_priv(new);
>>>>> +        else
>>>>> +            dev = NULL;
>>>>> +    } else {
>>>>> +        dev = spi_flash_probe(bus, cs, speed, mode);
>>>>> +    }
>>>>> +#else
>>>>>        dev = spi_flash_probe(bus, cs, speed, mode);
>>>>> +#endif
>>>>>        if (!dev) {
>>>>>            printf("Failed to create SPI flash at %u:%u:%u:%u\n",
>>>>>                   bus, cs, speed, mode);
>>>>>
>>>>> ---
>>>>> base-commit: 19dbc09405d3503ce3efef3c2e4b4f0f1a03372d
>>>>> change-id: 20240917-uboot-topic-dfu-sf-dt-8ae62e5c7d79
>>>>>
>>>>> Best regards,
>>>>> -- 
>>>>> Neil Armstrong <neil.armstrong@linaro.org>
>>>
diff mbox series

Patch

diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c
index 7c1c0f9e2dc..b5d875be5ea 100644
--- a/drivers/dfu/dfu_sf.c
+++ b/drivers/dfu/dfu_sf.c
@@ -123,6 +123,9 @@  static struct spi_flash *parse_dev(char *devstr)
 	unsigned int mode = CONFIG_SF_DEFAULT_MODE;
 	char *s, *endp;
 	struct spi_flash *dev;
+#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
+	bool use_dt = true;
+#endif
 
 	s = strsep(&devstr, ":");
 	if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) {
@@ -143,6 +146,9 @@  static struct spi_flash *parse_dev(char *devstr)
 			printf("Invalid SPI speed %s\n", s);
 			return NULL;
 		}
+#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
+		use_dt = false;
+#endif
 	}
 
 	s = strsep(&devstr, ":");
@@ -152,9 +158,25 @@  static struct spi_flash *parse_dev(char *devstr)
 			printf("Invalid SPI mode %s\n", s);
 			return NULL;
 		}
+#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
+		use_dt = false;
+#endif
 	}
 
+#if CONFIG_IS_ENABLED(DM_SPI_FLASH)
+	if (use_dt) {
+		struct udevice *new;
+
+		if (!spi_flash_probe_bus_cs(bus, cs, &new))
+			dev = dev_get_uclass_priv(new);
+		else
+			dev = NULL;
+	} else {
+		dev = spi_flash_probe(bus, cs, speed, mode);
+	}
+#else
 	dev = spi_flash_probe(bus, cs, speed, mode);
+#endif
 	if (!dev) {
 		printf("Failed to create SPI flash at %u:%u:%u:%u\n",
 		       bus, cs, speed, mode);