Ofcourse using names suffix for clocks and interrupts has been justified!That's very much specific to reg, it's not true of the use of names in
general - Rob mentions cases like interrupts for example.
I see that patch to support hdmi adds another reg-name along with "lpass-lpaif".
So, platform_get_resource_byname() is better option.
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpass-hdmiif");