MHI MMIO endian issue

["Martin Fäcknitz" <faecknitz@hotsplots.de>]

Hello,

the function mhi_init_mmio configures MMIO registers using the reg_info
table:

  eg_info[] = {
    {
	  CCABAP_HIGHER,
      upper_32_bits(mhi_cntrl->mhi_ctxt->chan_ctxt_addr),
	},
	...

  mhi_write_reg(mhi_cntrl, base, reg_info[i].offset,
    reg_info[i].val);

However, the values are in host byte orders, not in device byte order. I
have a PPC64 system which is big endian, but the device is little
endian. Without wrapping each value in eg_info using cpu_to_le32 the
device (sdx55) doesn't response:

  cpu_to_le32(upper_32_bits(mhi_cntrl->mhi_ctxt->chan_ctxt_addr))

Hard to believe i am the first one which has this issue? Let me know if
i should make a patch.

-- 
Martin Fäcknitz

hotsplots GmbH
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10245 Berlin
Fon: +49 (0)30 29 77 348-0
Fax: +49 (0)30 29 77 348-99
E-Mail: faecknitz@hotsplots.de

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