Re: [PATCH v2 02/24] drivers/video/fbdev: use ioremap_wc/wt() instead of __ioremap()

From: Bartlomiej Zolnierkiewicz
Date: Thu Sep 13 2018 - 13:02:42 EST



On 09/12/2018 05:58 PM, Christophe Leroy wrote:
> _PAGE_NO_CACHE is a platform specific flag. In addition, this flag
> is misleading because one would think it requests a noncached page
> whereas a noncached page is _PAGE_NO_CACHE | _PAGE_GUARDED
>
> _PAGE_NO_CACHE alone means write combined noncached page, so lets
> use ioremap_wc() instead.
>
> _PAGE_WRITETHRU is also platform specific flag. Use ioremap_wt()
> instead.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>

After reading patch #1 this one LGTM.

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>

> ---
> drivers/video/fbdev/chipsfb.c | 3 +--
> drivers/video/fbdev/controlfb.c | 5 +----
> drivers/video/fbdev/platinumfb.c | 5 +----
> drivers/video/fbdev/valkyriefb.c | 12 ++++++------
> 4 files changed, 9 insertions(+), 16 deletions(-)

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics