[06/14] drm/ast: Set PCI config before accessing I/O registers

[Sui Jingfeng]

Hi,

On 2023/6/19 16:16, Thomas Zimmermann wrote:
> Although cosmetical, I'm not so super-happy about the specs 
> disagreeing here: 
[...]
> PCI tends to treat status and command as separate 16-bit regs, while 
> the AST spec treats it as one 32-bit register.


I don't know this hardware constrain before,

but what's problem if we switch to using pci_read_config_word() function ?


I have tried this function on other platform, no problem.

I will go to test this function on my AST 2400 discrete card again, wait 
a while :-).

If there are hardware defect, I don't mind you keep using 
pci_read_config_dword().

-- 
Jingfeng