[PATCH] ARM: dts: stm32: Fix touchscreen IRQ line assignment on DHCOM

[Marek Vasut]

On 7/23/21 5:18 PM, Alexandre TORGUE wrote:
> Hi Marek
> 
> On 7/21/21 8:10 PM, Marek Vasut wrote:
>> While 7e5f3155dcbb4 ("ARM: dts: stm32: Fix LED5 on STM32MP1 DHCOM PDK2")
>> fixed the LED0 assignment on the PDK2 board, the same commit did not
>> update the touchscreen IRQ line assignment, which is the same GPIO line,
>> shared between the LED0 output and touchscreen IRQ input. To make this
>> more convoluted, the same EXTI input (not the same GPIO line) is shared
>> between Button B which is Active-Low IRQ, and touchscreen IRQ which is
>> Edge-Falling IRQ, which cannot be used at the same time. In case the LCD
>> board with touchscreen is in use, which is the case here, LED0 must be
>> disabled, Button B must be polled, so the touchscreen interrupt works as
>> it should.
>>
>> Update the touchscreen IRQ line assignment, disable LED0 and use polled
>> GPIO button driver for Button B, since the DT here describes baseboard
>> with LCD board.
>>
>> Fixes: 7e5f3155dcbb4 ("ARM: dts: stm32: Fix LED5 on STM32MP1 DHCOM PDK2")
>> Fixes: 34e0c7847dcf ("ARM: dts: stm32: Add DH Electronics DHCOM 
>> STM32MP1 SoM and PDK2 board")
> 
> I think you need to keep only one fixes tag.

Then it is the first one (LED5) if you want to pick it, or shall I 
resend it ?