diff mbox series

[1/1] hw: aspeed_gpio: Fix pin I/O type declarations

Message ID 20210928032456.3192603-2-pdel@fb.com (mailing list archive)
State New, archived
Headers show
Series hw: aspeed_gpio: Fix pin I/O type declarations | expand

Commit Message

Peter Delevoryas Sept. 28, 2021, 3:24 a.m. UTC
From: Peter Delevoryas <pdel@fb.com>

Some of the pin declarations in the Aspeed GPIO module were incorrect,
probably because of confusion over which bits in the input and output
uint32_t's correspond to which groups in the label array. Since the
uint32_t literals are in big endian, it's sort of the opposite of what
would be intuitive. The least significant bit in ast2500_set_props[6]
corresponds to GPIOY0, not GPIOAB7.

GPIOxx indicates input and output capabilities, GPIxx indicates only
input, GPOxx indicates only output.

AST2500:
- Previously had GPIW0..GPIW7 and GPIX0..GPIX7, that's correct.
- Previously had GPIOY0..GPIOY3, should have been GPIOY0..GPIOY7.
- Previously had GPIOAB0..GPIOAB3 and GPIAB4..GPIAB7, should only have
  been GPIOAB0..GPIOAB3.

AST2600:
- GPIOT0..GPIOT7 should have been GPIT0..GPIT7.
- GPIOU0..GPIOU7 should have been GPIU0..GPIU7.
- GPIW0..GPIW7 should have been GPIOW0..GPIOW7.
- GPIOY0..GPIOY7 and GPIOZ0...GPIOZ7 were disabled.

Fixes: 4b7f956862dc2db4c5c ("hw/gpio: Add basic Aspeed GPIO model for AST2400 and AST2500")
Fixes: 36d737ee82b2972167e ("hw/gpio: Add in AST2600 specific implementation")
Signed-off-by: Peter Delevoryas <pdel@fb.com>
---
 hw/gpio/aspeed_gpio.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Damien Hedde Sept. 28, 2021, 10:53 a.m. UTC | #1
On 9/28/21 05:24, pdel@fb.com wrote:
> From: Peter Delevoryas <pdel@fb.com>
> 
> Some of the pin declarations in the Aspeed GPIO module were incorrect,
> probably because of confusion over which bits in the input and output
> uint32_t's correspond to which groups in the label array. Since the
> uint32_t literals are in big endian, it's sort of the opposite of what
> would be intuitive. The least significant bit in ast2500_set_props[6]
> corresponds to GPIOY0, not GPIOAB7.
> 
> GPIOxx indicates input and output capabilities, GPIxx indicates only
> input, GPOxx indicates only output.
> 
> AST2500:
> - Previously had GPIW0..GPIW7 and GPIX0..GPIX7, that's correct.
> - Previously had GPIOY0..GPIOY3, should have been GPIOY0..GPIOY7.
> - Previously had GPIOAB0..GPIOAB3 and GPIAB4..GPIAB7, should only have
>    been GPIOAB0..GPIOAB3.
> 
> AST2600:
> - GPIOT0..GPIOT7 should have been GPIT0..GPIT7.
> - GPIOU0..GPIOU7 should have been GPIU0..GPIU7.
> - GPIW0..GPIW7 should have been GPIOW0..GPIOW7.
> - GPIOY0..GPIOY7 and GPIOZ0...GPIOZ7 were disabled.
> 
> Fixes: 4b7f956862dc2db4c5c ("hw/gpio: Add basic Aspeed GPIO model for AST2400 and AST2500")
> Fixes: 36d737ee82b2972167e ("hw/gpio: Add in AST2600 specific implementation")
> Signed-off-by: Peter Delevoryas <pdel@fb.com>

Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>

> ---
>   hw/gpio/aspeed_gpio.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/hw/gpio/aspeed_gpio.c b/hw/gpio/aspeed_gpio.c
> index dfa6d6cb40..33a40a624a 100644
> --- a/hw/gpio/aspeed_gpio.c
> +++ b/hw/gpio/aspeed_gpio.c
> @@ -796,7 +796,7 @@ static const GPIOSetProperties ast2500_set_props[] = {
>       [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
>       [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
>       [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
> -    [6] = {0xffffff0f,  0x0fffff0f,  {"Y", "Z", "AA", "AB"} },
> +    [6] = {0x0fffffff,  0x0fffffff,  {"Y", "Z", "AA", "AB"} },
>       [7] = {0x000000ff,  0x000000ff,  {"AC"} },
>   };
>   
> @@ -805,9 +805,9 @@ static GPIOSetProperties ast2600_3_3v_set_props[] = {
>       [1] = {0xffffffff,  0xffffffff,  {"E", "F", "G", "H"} },
>       [2] = {0xffffffff,  0xffffffff,  {"I", "J", "K", "L"} },
>       [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
> -    [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
> -    [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
> -    [6] = {0xffff0000,  0x0fff0000,  {"Y", "Z", "", ""} },
> +    [4] = {0xffffffff,  0x00ffffff,  {"Q", "R", "S", "T"} },
> +    [5] = {0xffffffff,  0xffffff00,  {"U", "V", "W", "X"} },
> +    [6] = {0x0000ffff,  0x0000ffff,  {"Y", "Z"} },
>   };
>   
>   static GPIOSetProperties ast2600_1_8v_set_props[] = {
>
Peter Delevoryas Sept. 30, 2021, 12:45 a.m. UTC | #2
> On Sep 28, 2021, at 3:53 AM, Damien Hedde <damien.hedde@greensocs.com> wrote:
> 
> 
> 
> On 9/28/21 05:24, pdel@fb.com wrote:
>> From: Peter Delevoryas <pdel@fb.com>
>> Some of the pin declarations in the Aspeed GPIO module were incorrect,
>> probably because of confusion over which bits in the input and output
>> uint32_t's correspond to which groups in the label array. Since the
>> uint32_t literals are in big endian, it's sort of the opposite of what
>> would be intuitive. The least significant bit in ast2500_set_props[6]
>> corresponds to GPIOY0, not GPIOAB7.
>> GPIOxx indicates input and output capabilities, GPIxx indicates only
>> input, GPOxx indicates only output.
>> AST2500:
>> - Previously had GPIW0..GPIW7 and GPIX0..GPIX7, that's correct.
>> - Previously had GPIOY0..GPIOY3, should have been GPIOY0..GPIOY7.
>> - Previously had GPIOAB0..GPIOAB3 and GPIAB4..GPIAB7, should only have
>>   been GPIOAB0..GPIOAB3.
>> AST2600:
>> - GPIOT0..GPIOT7 should have been GPIT0..GPIT7.
>> - GPIOU0..GPIOU7 should have been GPIU0..GPIU7.
>> - GPIW0..GPIW7 should have been GPIOW0..GPIOW7.
>> - GPIOY0..GPIOY7 and GPIOZ0...GPIOZ7 were disabled.
>> Fixes: 4b7f956862dc2db4c5c ("hw/gpio: Add basic Aspeed GPIO model for AST2400 and AST2500")
>> Fixes: 36d737ee82b2972167e ("hw/gpio: Add in AST2600 specific implementation")
>> Signed-off-by: Peter Delevoryas <pdel@fb.com>
> 
> Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>

cc’ing Dan

> 
>> ---
>>  hw/gpio/aspeed_gpio.c | 8 ++++----
>>  1 file changed, 4 insertions(+), 4 deletions(-)
>> diff --git a/hw/gpio/aspeed_gpio.c b/hw/gpio/aspeed_gpio.c
>> index dfa6d6cb40..33a40a624a 100644
>> --- a/hw/gpio/aspeed_gpio.c
>> +++ b/hw/gpio/aspeed_gpio.c
>> @@ -796,7 +796,7 @@ static const GPIOSetProperties ast2500_set_props[] = {
>>      [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
>>      [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
>>      [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
>> -    [6] = {0xffffff0f,  0x0fffff0f,  {"Y", "Z", "AA", "AB"} },
>> +    [6] = {0x0fffffff,  0x0fffffff,  {"Y", "Z", "AA", "AB"} },
>>      [7] = {0x000000ff,  0x000000ff,  {"AC"} },
>>  };
>>  @@ -805,9 +805,9 @@ static GPIOSetProperties ast2600_3_3v_set_props[] = {
>>      [1] = {0xffffffff,  0xffffffff,  {"E", "F", "G", "H"} },
>>      [2] = {0xffffffff,  0xffffffff,  {"I", "J", "K", "L"} },
>>      [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
>> -    [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
>> -    [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
>> -    [6] = {0xffff0000,  0x0fff0000,  {"Y", "Z", "", ""} },
>> +    [4] = {0xffffffff,  0x00ffffff,  {"Q", "R", "S", "T"} },
>> +    [5] = {0xffffffff,  0xffffff00,  {"U", "V", "W", "X"} },
>> +    [6] = {0x0000ffff,  0x0000ffff,  {"Y", "Z"} },
>>  };
>>    static GPIOSetProperties ast2600_1_8v_set_props[] = {
Rashmica Gupta Sept. 30, 2021, 12:05 p.m. UTC | #3
On Thu, 2021-09-30 at 00:45 +0000, Peter Delevoryas wrote:
> 
> > On Sep 28, 2021, at 3:53 AM, Damien Hedde
> > <damien.hedde@greensocs.com> wrote:
> > 
> > 
> > 
> > On 9/28/21 05:24, pdel@fb.com wrote:
> > > From: Peter Delevoryas <pdel@fb.com>
> > > Some of the pin declarations in the Aspeed GPIO module were
> > > incorrect,
> > > probably because of confusion over which bits in the input and
> > > output
> > > uint32_t's correspond to which groups in the label array. Since
> > > the
> > > uint32_t literals are in big endian, it's sort of the opposite of
> > > what
> > > would be intuitive. The least significant bit in
> > > ast2500_set_props[6]
> > > corresponds to GPIOY0, not GPIOAB7.

Looks like I didn't think about endianness! I remember there was
conflicting information about which groups of GPIOs were input only -
the input/output table says groups W and X for ast2600 while the info
in direction registers says T and U. I don't recall why I went with the
former over the latter but the latter seems to be correct as this is
what is in the kernel driver.

> > > GPIOxx indicates input and output capabilities, GPIxx indicates
> > > only
> > > input, GPOxx indicates only output.
> > > AST2500:
> > > - Previously had GPIW0..GPIW7 and GPIX0..GPIX7, that's correct.
> > > - Previously had GPIOY0..GPIOY3, should have been GPIOY0..GPIOY7.
> > > - Previously had GPIOAB0..GPIOAB3 and GPIAB4..GPIAB7, should only
> > > have
> > >   been GPIOAB0..GPIOAB3.
> > > AST2600:
> > > - GPIOT0..GPIOT7 should have been GPIT0..GPIT7.
> > > - GPIOU0..GPIOU7 should have been GPIU0..GPIU7.
> > > - GPIW0..GPIW7 should have been GPIOW0..GPIOW7.
> > > - GPIOY0..GPIOY7 and GPIOZ0...GPIOZ7 were disabled.
> > > Fixes: 4b7f956862dc2db4c5c ("hw/gpio: Add basic Aspeed GPIO model
> > > for AST2400 and AST2500")
> > > Fixes: 36d737ee82b2972167e ("hw/gpio: Add in AST2600 specific
> > > implementation")
> > > Signed-off-by: Peter Delevoryas <pdel@fb.com>
> > 
> > Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>
> 

Reviewed-by: Rashmica Gupta <rashmica.g@gmail.com>

> cc’ing Dan
> 
> > 
> > > ---
> > >  hw/gpio/aspeed_gpio.c | 8 ++++----
> > >  1 file changed, 4 insertions(+), 4 deletions(-)
> > > diff --git a/hw/gpio/aspeed_gpio.c b/hw/gpio/aspeed_gpio.c
> > > index dfa6d6cb40..33a40a624a 100644
> > > --- a/hw/gpio/aspeed_gpio.c
> > > +++ b/hw/gpio/aspeed_gpio.c
> > > @@ -796,7 +796,7 @@ static const GPIOSetProperties
> > > ast2500_set_props[] = {
> > >      [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
> > >      [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
> > >      [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
> > > -    [6] = {0xffffff0f,  0x0fffff0f,  {"Y", "Z", "AA", "AB"} },
> > > +    [6] = {0x0fffffff,  0x0fffffff,  {"Y", "Z", "AA", "AB"} },
> > >      [7] = {0x000000ff,  0x000000ff,  {"AC"} },
> > >  };
> > >  @@ -805,9 +805,9 @@ static GPIOSetProperties
> > > ast2600_3_3v_set_props[] = {
> > >      [1] = {0xffffffff,  0xffffffff,  {"E", "F", "G", "H"} },
> > >      [2] = {0xffffffff,  0xffffffff,  {"I", "J", "K", "L"} },
> > >      [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
> > > -    [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
> > > -    [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
> > > -    [6] = {0xffff0000,  0x0fff0000,  {"Y", "Z", "", ""} },
> > > +    [4] = {0xffffffff,  0x00ffffff,  {"Q", "R", "S", "T"} },
> > > +    [5] = {0xffffffff,  0xffffff00,  {"U", "V", "W", "X"} },
> > > +    [6] = {0x0000ffff,  0x0000ffff,  {"Y", "Z"} },
> > >  };
> > >    static GPIOSetProperties ast2600_1_8v_set_props[] = {
>
Peter Delevoryas Sept. 30, 2021, 2:09 p.m. UTC | #4
> On Sep 30, 2021, at 5:05 AM, Rashmica Gupta <rashmica.g@gmail.com> wrote:
> 
> On Thu, 2021-09-30 at 00:45 +0000, Peter Delevoryas wrote:
>> 
>>> On Sep 28, 2021, at 3:53 AM, Damien Hedde
>>> <damien.hedde@greensocs.com> wrote:
>>> 
>>> 
>>> 
>>> On 9/28/21 05:24, pdel@fb.com wrote:
>>>> From: Peter Delevoryas <pdel@fb.com>
>>>> Some of the pin declarations in the Aspeed GPIO module were
>>>> incorrect,
>>>> probably because of confusion over which bits in the input and
>>>> output
>>>> uint32_t's correspond to which groups in the label array. Since
>>>> the
>>>> uint32_t literals are in big endian, it's sort of the opposite of
>>>> what
>>>> would be intuitive. The least significant bit in
>>>> ast2500_set_props[6]
>>>> corresponds to GPIOY0, not GPIOAB7.
> 
> Looks like I didn't think about endianness! I remember there was
> conflicting information about which groups of GPIOs were input only -
> the input/output table says groups W and X for ast2600 while the info
> in direction registers says T and U. I don't recall why I went with the
> former over the latter but the latter seems to be correct as this is
> what is in the kernel driver.

Oh I see, thanks for checking.

> 
>>>> GPIOxx indicates input and output capabilities, GPIxx indicates
>>>> only
>>>> input, GPOxx indicates only output.
>>>> AST2500:
>>>> - Previously had GPIW0..GPIW7 and GPIX0..GPIX7, that's correct.
>>>> - Previously had GPIOY0..GPIOY3, should have been GPIOY0..GPIOY7.
>>>> - Previously had GPIOAB0..GPIOAB3 and GPIAB4..GPIAB7, should only
>>>> have
>>>>   been GPIOAB0..GPIOAB3.
>>>> AST2600:
>>>> - GPIOT0..GPIOT7 should have been GPIT0..GPIT7.
>>>> - GPIOU0..GPIOU7 should have been GPIU0..GPIU7.
>>>> - GPIW0..GPIW7 should have been GPIOW0..GPIOW7.
>>>> - GPIOY0..GPIOY7 and GPIOZ0...GPIOZ7 were disabled.
>>>> Fixes: 4b7f956862dc2db4c5c ("hw/gpio: Add basic Aspeed GPIO model
>>>> for AST2400 and AST2500")
>>>> Fixes: 36d737ee82b2972167e ("hw/gpio: Add in AST2600 specific
>>>> implementation")
>>>> Signed-off-by: Peter Delevoryas <pdel@fb.com>
>>> 
>>> Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>
>> 
> 
> Reviewed-by: Rashmica Gupta <rashmica.g@gmail.com>

Thanks Rashmica!

Peter

> 
>> cc’ing Dan
>> 
>>> 
>>>> ---
>>>>  hw/gpio/aspeed_gpio.c | 8 ++++----
>>>>  1 file changed, 4 insertions(+), 4 deletions(-)
>>>> diff --git a/hw/gpio/aspeed_gpio.c b/hw/gpio/aspeed_gpio.c
>>>> index dfa6d6cb40..33a40a624a 100644
>>>> --- a/hw/gpio/aspeed_gpio.c
>>>> +++ b/hw/gpio/aspeed_gpio.c
>>>> @@ -796,7 +796,7 @@ static const GPIOSetProperties
>>>> ast2500_set_props[] = {
>>>>      [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
>>>>      [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
>>>>      [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
>>>> -    [6] = {0xffffff0f,  0x0fffff0f,  {"Y", "Z", "AA", "AB"} },
>>>> +    [6] = {0x0fffffff,  0x0fffffff,  {"Y", "Z", "AA", "AB"} },
>>>>      [7] = {0x000000ff,  0x000000ff,  {"AC"} },
>>>>  };
>>>>  @@ -805,9 +805,9 @@ static GPIOSetProperties
>>>> ast2600_3_3v_set_props[] = {
>>>>      [1] = {0xffffffff,  0xffffffff,  {"E", "F", "G", "H"} },
>>>>      [2] = {0xffffffff,  0xffffffff,  {"I", "J", "K", "L"} },
>>>>      [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
>>>> -    [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
>>>> -    [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
>>>> -    [6] = {0xffff0000,  0x0fff0000,  {"Y", "Z", "", ""} },
>>>> +    [4] = {0xffffffff,  0x00ffffff,  {"Q", "R", "S", "T"} },
>>>> +    [5] = {0xffffffff,  0xffffff00,  {"U", "V", "W", "X"} },
>>>> +    [6] = {0x0000ffff,  0x0000ffff,  {"Y", "Z"} },
>>>>  };
>>>>    static GPIOSetProperties ast2600_1_8v_set_props[] = {
diff mbox series

Patch

diff --git a/hw/gpio/aspeed_gpio.c b/hw/gpio/aspeed_gpio.c
index dfa6d6cb40..33a40a624a 100644
--- a/hw/gpio/aspeed_gpio.c
+++ b/hw/gpio/aspeed_gpio.c
@@ -796,7 +796,7 @@  static const GPIOSetProperties ast2500_set_props[] = {
     [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
     [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
     [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
-    [6] = {0xffffff0f,  0x0fffff0f,  {"Y", "Z", "AA", "AB"} },
+    [6] = {0x0fffffff,  0x0fffffff,  {"Y", "Z", "AA", "AB"} },
     [7] = {0x000000ff,  0x000000ff,  {"AC"} },
 };
 
@@ -805,9 +805,9 @@  static GPIOSetProperties ast2600_3_3v_set_props[] = {
     [1] = {0xffffffff,  0xffffffff,  {"E", "F", "G", "H"} },
     [2] = {0xffffffff,  0xffffffff,  {"I", "J", "K", "L"} },
     [3] = {0xffffffff,  0xffffffff,  {"M", "N", "O", "P"} },
-    [4] = {0xffffffff,  0xffffffff,  {"Q", "R", "S", "T"} },
-    [5] = {0xffffffff,  0x0000ffff,  {"U", "V", "W", "X"} },
-    [6] = {0xffff0000,  0x0fff0000,  {"Y", "Z", "", ""} },
+    [4] = {0xffffffff,  0x00ffffff,  {"Q", "R", "S", "T"} },
+    [5] = {0xffffffff,  0xffffff00,  {"U", "V", "W", "X"} },
+    [6] = {0x0000ffff,  0x0000ffff,  {"Y", "Z"} },
 };
 
 static GPIOSetProperties ast2600_1_8v_set_props[] = {