[U-Boot] [PATCH V2] fsl: esdhc: consolidate fsl_esdhc_cfg structure

[york sun]

On 03/28/2016 06:23 PM, Peng Fan wrote:
> Hi York,
> 
> On Tue, Mar 29, 2016 at 12:33:42AM +0000, york sun wrote:
>> On 03/15/2016 03:14 AM, Peng Fan wrote:
>>> We can use phys_addr_to for esdhc_base to discard
>>> the #ifdef.
>>>
>>> Signed-off-by: Peng Fan <van.freenix at gmail.com>
>>> Cc: York Sun <york.sun at nxp.com>
>>> Cc: Yangbo Lu <yangbo.lu at nxp.com>
>>> Cc: Eric Nelson <eric at nelint.com>
>>> Cc: Fabio Estevam <fabio.estevam at nxp.com>
>>> Cc: Pantelis Antoniou <panto at antoniou-consulting.com>
>>> Cc: Tom Rini <trini at konsulko.com>
>>> ---
>>>
>>> V2:
>>>  Split this patch from the V1 patch set.
>>>
>>>  include/fsl_esdhc.h | 6 +-----
>>>  1 file changed, 1 insertion(+), 5 deletions(-)
>>>
>>> diff --git a/include/fsl_esdhc.h b/include/fsl_esdhc.h
>>> index 073048f..fa760a5 100644
>>> --- a/include/fsl_esdhc.h
>>> +++ b/include/fsl_esdhc.h
>>> @@ -168,11 +168,7 @@
>>>  #define ESDHC_VENDORSPEC_VSELECT 0x00000002 /* Use 1.8V */
>>>  
>>>  struct fsl_esdhc_cfg {
>>> -#ifdef CONFIG_FSL_LAYERSCAPE
>>> -	u64	esdhc_base;
>>> -#else
>>> -	u32	esdhc_base;
>>> -#endif
>>> +	phys_addr_t esdhc_base;
>>>  	u32	sdhc_clk;
>>>  	u8	max_bus_width;
>>>  	struct mmc_config cfg;
>>>
>>
>> Peng,
>>
>> I thought this change is trivial and should be OK. But it turns out this change
>> brings comping warning to many PPC boards
>>
>> drivers/mmc/fsl_esdhc.c:184:27: warning: cast to pointer from integer of
>> different size [-Wint-to-pointer-cast]
> 
> You can apply https://patchwork.ozlabs.org/patch/601919/ and retest.
> I think the reason is that to PPC 64bit, "typedef unsigned long long phys_addr_t"
> I think "esdhc_regs = (struct fsl_esdhc *)(unsigned long)(cfg->esdhc_base);"
> can fix it.
> 
> Do I need to send a single V3 patch to fix the warning, or you apply the
> driver model V3 patch, if the driver model V3 can fix it?
> 

I am concerned about git bisect. It is not good to have a patch with compiling
warning. I prefer you fix it.

York