From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Date: Thu, 28 Aug 2014 14:37:37 +0000 Subject: Re: [linux-sunxi] Re: [PATCH 4/4] simplefb: add clock handling code Message-Id: List-Id: References: <20140825150501.GE14763@ulmo.nvidia.com> <20140825152232.GE15297@lukather> <20140826080432.GD17263@ulmo> <20140826135341.GM15297@lukather> <20140826143550.GB3027@ulmo> <53FCE704.4030103@redhat.com> <20140827093121.GA23186@ulmo> <53FDB46C.5010609@redhat.com> <20140827125613.GF23186@ulmo> <53FDE0CE.5030807@redhat.com> <20140827141632.GB32243@ulmo> <53FF1D6C.6090205@redhat.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org On Thu, Aug 28, 2014 at 4:33 PM, jonsmirl@gmail.com wrote: > On Thu, Aug 28, 2014 at 10:20 AM, Geert Uytterhoeven > wrote: >> On Thu, Aug 28, 2014 at 3:22 PM, jonsmirl@gmail.com wrote: >>>> 2) We don't want to hardcode these clocks into the kernel (sunxi) clk >>>> driver, instead the bootloader should tell the kernel about these clocks. >>>> >>>> So the only point of discussion left seems to be how to do 2... >>> >>> Wouldn't it be a lot simpler just to use existing fbdev (not KMS) and >>> whip together a device specific driver that claims the proper >>> resources? And just implement the minimal about of fbdev possible? >>> fbdev already is a driver library. >> >> Like... drivers/video/fbdev/offb.c? > > I'd probably reclassify drivers/video/fbdev/simplefb.c as a skeleton > and use it as a template for making device specific versions of it. > > I don't see why there is so much resistance to just making device > specific fb drivers. Whenever the KMS driver gets written just > disable the device specific fb driver in the build. I explicitly named offb, because it already supports living with the video mode initialized by Open Firmware, which is passed to the kernel in a device tree. -- Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds