From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Landley Date: Wed, 08 May 2013 20:58:30 +0000 Subject: Re: [PATCH V2] video: implement a simple framebuffer driver Message-Id: <1368046710.18069.217@driftwood> List-Id: References: <1365043183-28905-1-git-send-email-swarren@wwwdotorg.org> <201304300004.20320.arnd@arndb.de> <5182AF83.4080705@wwwdotorg.org> <1956593.M6NmITdEKh@avalon> <20130507143338.79b3d893fcdc3bd79fbe9a57@linux-foundation.org> <5189BA36.9000105@wwwdotorg.org> In-Reply-To: <5189BA36.9000105@wwwdotorg.org> (from swarren@wwwdotorg.org on Tue May 7 21:36:38 2013) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org On 05/07/2013 09:36:38 PM, Stephen Warren wrote: > On 05/07/2013 03:33 PM, Andrew Morton wrote: ... > Subject: drivers/video: implement a simple framebuffer driver > > A simple frame-buffer describes a raw memory region that may be > rendered > to, with the assumption that the display hardware has already been set > up to scan out from that buffer. > > This is useful in cases where a bootloader exists and has set up the > display hardware, but a Linux driver doesn't yet exist for the display > hardware. > > Examples use-cases include: Virtual environments such as QEMU. Rob From mboxrd@z Thu Jan 1 00:00:00 1970 From: rob@landley.net (Rob Landley) Date: Wed, 08 May 2013 15:58:30 -0500 Subject: [PATCH V2] video: implement a simple framebuffer driver In-Reply-To: <5189BA36.9000105@wwwdotorg.org> (from swarren@wwwdotorg.org on Tue May 7 21:36:38 2013) References: <1365043183-28905-1-git-send-email-swarren@wwwdotorg.org> <201304300004.20320.arnd@arndb.de> <5182AF83.4080705@wwwdotorg.org> <1956593.M6NmITdEKh@avalon> <20130507143338.79b3d893fcdc3bd79fbe9a57@linux-foundation.org> <5189BA36.9000105@wwwdotorg.org> Message-ID: <1368046710.18069.217@driftwood> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 05/07/2013 09:36:38 PM, Stephen Warren wrote: > On 05/07/2013 03:33 PM, Andrew Morton wrote: ... > Subject: drivers/video: implement a simple framebuffer driver > > A simple frame-buffer describes a raw memory region that may be > rendered > to, with the assumption that the display hardware has already been set > up to scan out from that buffer. > > This is useful in cases where a bootloader exists and has set up the > display hardware, but a Linux driver doesn't yet exist for the display > hardware. > > Examples use-cases include: Virtual environments such as QEMU. Rob From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Landley Subject: Re: [PATCH V2] video: implement a simple framebuffer driver Date: Wed, 08 May 2013 15:58:30 -0500 Message-ID: <1368046710.18069.217@driftwood> References: <1365043183-28905-1-git-send-email-swarren@wwwdotorg.org> <201304300004.20320.arnd@arndb.de> <5182AF83.4080705@wwwdotorg.org> <1956593.M6NmITdEKh@avalon> <20130507143338.79b3d893fcdc3bd79fbe9a57@linux-foundation.org> <5189BA36.9000105@wwwdotorg.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="Flowed"; DelSp="Yes" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5189BA36.9000105-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org> (from swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org on Tue May 7 21:36:38 2013) Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: "devicetree-discuss" To: Stephen Warren Cc: linux-fbdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Tomasz Figa , Rob Clark , Laurent Pinchart , Andrew Morton , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org On 05/07/2013 09:36:38 PM, Stephen Warren wrote: > On 05/07/2013 03:33 PM, Andrew Morton wrote: ... > Subject: drivers/video: implement a simple framebuffer driver > > A simple frame-buffer describes a raw memory region that may be > rendered > to, with the assumption that the display hardware has already been set > up to scan out from that buffer. > > This is useful in cases where a bootloader exists and has set up the > display hardware, but a Linux driver doesn't yet exist for the display > hardware. > > Examples use-cases include: Virtual environments such as QEMU. Rob