linux-kernel - Re: [PATCH -next] fbdev: atyfb: use LCD management functions for PPC

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Date:   Fri, 26 Feb 2021 08:38:02 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Jani Nikula <jani.nikula@...ux.intel.com>
Subject: Re: [PATCH -next] fbdev: atyfb: use LCD management functions for
 PPC_PMAC also

On 2/26/21 4:12 AM, Ville Syrjälä wrote:
> On Thu, Feb 25, 2021 at 04:05:37PM -0800, Randy Dunlap wrote:
>> Include PPC_PMAC in the configs that use aty_ld_lcd() and
>> aty_st_lcd() implementations so that the PM code may work
>> correctly for PPC_PMAC.
>>
>> Suggested-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>
>> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
>> Cc: Daniel Vetter <daniel.vetter@...ll.ch>
>> Cc: Nick Desaulniers <ndesaulniers@...gle.com>
>> Cc: linux-fbdev@...r.kernel.org
>> Cc: dri-devel@...ts.freedesktop.org
>> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
>> Cc: Sam Ravnborg <sam@...nborg.org>
>> Cc: David Airlie <airlied@...ux.ie>
>> Cc: Jani Nikula <jani.nikula@...ux.intel.com>
>> ---
>> Daniel- We also need this patch:
>> https://lore.kernel.org/dri-devel/20210224215528.822-1-rdunlap@infradead.org/
>> to fix a kernel test robot build error.
>>
>>  drivers/video/fbdev/aty/atyfb_base.c |    8 +++-----
>>  1 file changed, 3 insertions(+), 5 deletions(-)
>>
>> --- linux-next-20210219.orig/drivers/video/fbdev/aty/atyfb_base.c
>> +++ linux-next-20210219/drivers/video/fbdev/aty/atyfb_base.c
>> @@ -132,8 +132,7 @@
>>  #define PRINTKI(fmt, args...)	printk(KERN_INFO "atyfb: " fmt, ## args)
>>  #define PRINTKE(fmt, args...)	printk(KERN_ERR "atyfb: " fmt, ## args)
>>  
>> -#if defined(CONFIG_PMAC_BACKLIGHT) || defined(CONFIG_FB_ATY_GENERIC_LCD) || \
>> -defined(CONFIG_FB_ATY_BACKLIGHT)
>> +#if defined(CONFIG_PPC_PMAC)
> 
> Did you send an old version by accident? That's definitely
> not what we want since it would break everything except PPC_PMAC.


Yikes!

Yes, thanks for catching that.
I'll get the newer version out soon.

>>  static const u32 lt_lcd_regs[] = {
>>  	CNFG_PANEL_LG,
>>  	LCD_GEN_CNTL_LG,
>> @@ -175,8 +174,7 @@ u32 aty_ld_lcd(int index, const struct a
>>  		return aty_ld_le32(LCD_DATA, par);
>>  	}
>>  }
>> -#else /* defined(CONFIG_PMAC_BACKLIGHT) || defined(CONFIG_FB_ATY_BACKLIGHT) \
>> -	 defined(CONFIG_FB_ATY_GENERIC_LCD) */
>> +#else /* defined(CONFIG_PPC_PMAC) */
>>  void aty_st_lcd(int index, u32 val, const struct atyfb_par *par)
>>  { }
>>  
>> @@ -184,7 +182,7 @@ u32 aty_ld_lcd(int index, const struct a
>>  {
>>  	return 0;
>>  }
>> -#endif /* defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD) */
>> +#endif /* defined(CONFIG_PPC_PMAC) */
>>  
>>  #ifdef CONFIG_FB_ATY_GENERIC_LCD
>>  /*
> 


-- 
~Randy