From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Date: Sat, 20 Feb 2016 11:46:35 +0000 Subject: Re: [02/11] video: ARM CLCD: support DT signal inversion flags Message-Id: List-Id: References: <1454594660-7532-3-git-send-email-linus.walleij@linaro.org> <0cebf93a-ee0a-3637-3242-8aed266df091@broadcom.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 Sat, Feb 20, 2016 at 2:23 AM, Ray Jui wrote: >> Do you have a system that needs this? > > Yah, we have a system (Cygnus) that can either use the HCLK, or an external > clock generated from a PLL. To get certain pixel clock frequencies > (depending on the LCD panel we use), we need to use the external clock > source with the PLL configured to a particular VCO frequency. > > We have not enabled full LCD/video support on that platform in the mainline > kernel, but we'll eventually get to it. OK I hope to finish these patches soon so you have some nice stuff to build upon. I guess it will need the same per-vendor plug-in that I supplied for the ARMs and the Nomadik. Yours, Linus Walleij From mboxrd@z Thu Jan 1 00:00:00 1970 From: linus.walleij@linaro.org (Linus Walleij) Date: Sat, 20 Feb 2016 12:46:35 +0100 Subject: [02/11] video: ARM CLCD: support DT signal inversion flags In-Reply-To: References: <1454594660-7532-3-git-send-email-linus.walleij@linaro.org> <0cebf93a-ee0a-3637-3242-8aed266df091@broadcom.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Feb 20, 2016 at 2:23 AM, Ray Jui wrote: >> Do you have a system that needs this? > > Yah, we have a system (Cygnus) that can either use the HCLK, or an external > clock generated from a PLL. To get certain pixel clock frequencies > (depending on the LCD panel we use), we need to use the external clock > source with the PLL configured to a particular VCO frequency. > > We have not enabled full LCD/video support on that platform in the mainline > kernel, but we'll eventually get to it. OK I hope to finish these patches soon so you have some nice stuff to build upon. I guess it will need the same per-vendor plug-in that I supplied for the ARMs and the Nomadik. Yours, Linus Walleij