MSGID: 2:240/12 6251c19d   
   TZUTC: 0200   
   REPLY: 2:5020/545 627e0ba9   
   CHRS: LATIN-1 2   
   TID: hpt/fbsd 1.9 2021-12-02   
   Hello Alexey!   
      
   13 May 22 10:28, Alexey Vissarionov wrote to Gerrit Kuehn:   
      
      
    GK>> I have an Intel-based mainboard with build-in gpios that I'd like   
    GK>> to use. However, I cannot get the kernel (5.16) to recognise the   
    GK>> chip (NXP PCA9554). To my understanding, this should be supported   
    GK>> with the gpio_pca953x kernel module.   
      
    AV> Or not supported.   
      
   https://github.com/torvalds/linux/blob/master/drivers/gpio/gpio-pca953x.c   
      
   { .compatible = "nxp,pca9554", .data = OF_953X( 8, PCA_INT), },   
      
   From looking at the source, I think it should be supported by the existing   
   module. kernelconfig has the same info:   
      
   -> PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports   
      
   8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,   
   pca9556, pca9557, pca9574, tca6408, tca9554, xra1202   
      
    AV> https://www.ti.com/lit/gpn/pca9554   
    AV> https://www.onsemi.com/pdf/datasheet/pca9554-d.pdf   
    AV> https://www.nxp.com/docs/en/data-sheet/PCA9554_9554A.pdf   
      
    AV> Quite enough to write your own kernel module.   
      
   Yeah, sure, but why bother if the driver is already there?   
      
      
   Regards,   
   Gerrit   
      
   ... 10:21AM  up 51 days, 15:27, 8 users, load averages: 0.36, 0.44, 0.40   
      
   --- msged/fbsd 6.3 2021-12-02   
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