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DMA_BIT_MASK for PowerPC Qoriq

Question asked by AMARNATH SUBRAMANIAN on Jun 27, 2018
Latest reply on Jun 27, 2018 by ufedor

 We are trying to port custom pci based alsa driver on our custom board with Qoriq processor.

 

 when the driver is loaded,got below error, 

 

 [  120.014015] CTI_ALSA:  module init called, index=[1] 
 [  120.017797] CTI_ALSA:  device set 24bit DMA mask failed w/err=[0]

 

  The error occurs when i do dma_set_mask for 24bit

 

  /*
     if ((err = dma_set_mask(&pcidev->dev, DMA_BIT_MASK(24))) < 0) {
        printk(KERN_ERR CTI_PREFIX " device set 24bit DMA mask failed w/err=[%d]", err);
        err = -ENXIO;
        goto err_disable_dev;
        }

 

        if ((err = pci_set_consistent_dma_mask(pcidev,DMA_BIT_MASK(24)) < 0)) {
        printk(KERN_ERR CTI_PREFIX " device set 24bit consistent DMA mask failed w/err=[%d]", err);
        err = -ENXIO;
        goto err_disable_dev;
        }

 

  */

 

  The same driver is working fine with Intel processor.

 

  Let me know, if i need to do any change w.r.t Qoriq processor.

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