static int apl_get_registers(void)
{
+ int ret = -ENODEV;
int i;
if (RD_REG(&asym_2way, b_cr_asym_2way_mem_region_mchbar))
return -ENODEV;
+ /*
+ * RD_REGP() will fail for unpopulated or non-existent
+ * DIMM slots. Return success if we find at least one DIMM.
+ */
for (i = 0; i < APL_NUM_CHANNELS; i++)
- if (RD_REGP(&drp0[i], d_cr_drp0, apl_dports[i]))
- return -ENODEV;
+ if (!RD_REGP(&drp0[i], d_cr_drp0, apl_dports[i]))
+ ret = 0;
- return 0;
+ return ret;
}
static int dnv_get_registers(void)