Hi Gianluca,
On 2/19/21 11:38 AM, gianluca wrote:
On 2/19/21 11:18 AM, Giulio Benetti wrote:
On 2/19/21 11:12 AM, Giulio Benetti wrote:
Hi Andre,
On 2/19/21 2:44 AM, Andre Przywara wrote:
On Fri, 19 Feb 2021 00:26:19 +0100 Giulio Benetti giulio.benetti@benettiengineering.com wrote:
Hi Giulio,
From: Giulio Benetti giulio.benetti@micronovasrl.com
Add support for Micronova srl s027_3 board by adding new vendor/board folders and using in local Makefile the already present board/sunxi/Makefile. The reason is that s027_3 needs a pin to be asserted to enable lcd before setting controller up and sunxi board doesn't provide a way to do this customization.
Have you tried CONFIG_VIDEO_LCD_POWER?
Yes, I already use that for DISPONOFF.
I am strongly against introducing per-board code files, and we definitely won't introduce them just for one GPIO.
I knew it was a strange hack, but I have 2 different pins to be set high before init video controller. Another idea that comes into my mind is to handle CONFIG_VIDEO_LCD_POWER as a gpio list and iterate/enable, what about that?
Or introduce CONFIG_VIDEO_LCD_ENABLE, that would be easier. Here is the schematic of my lcd connector to understand: https://pasteboard.co/JP3PiYo.png
I have net LCD_PWR that should be CONFIG_VIDEO_LCD_POWER, while net LCD0_DISPONOFF should be CONFIG_VIDEO_LCD_ENABLE.
At least this is my idea. Do you have any suggestion to make it work?
May I say a word?
Of course!
Is it possible to wire the LCD0_DISPONOFF (I suppose it is high active) with the same pin routed to a SN74LVC1G04 to the pullup thru the Q6 Transistor?
Supposed there is no such timing restritctions
Unfortunately board can't be changed, thanks though.
Best regards