From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: Re: [PATCH 1/2] serial: samsung: Add unified interrupt handler for s3c64xx and later SoC's Date: Wed, 10 Aug 2011 12:55:31 +0100 Message-ID: <20110810125531.38226d7a@bob.linux.org.uk> References: <1312971680-3898-1-git-send-email-thomas.abraham@linaro.org> <1312971680-3898-2-git-send-email-thomas.abraham@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1312971680-3898-2-git-send-email-thomas.abraham@linaro.org> Sender: linux-samsung-soc-owner@vger.kernel.org To: Thomas Abraham Cc: linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, kgene.kim@samsung.com, grant.likely@secretlab.ca, ben-linux@fluff.org List-Id: linux-serial@vger.kernel.org On Wed, 10 Aug 2011 15:51:19 +0530 Thomas Abraham wrote: > s3c64xx and later SoC's include the interrupt mask and pending > registers in the uart controller, unlike the s3c24xx SoC's which have > these registers in the interrupt controller. When the mask and > pending registers are part of the uart controller, a unified > interrupt handler can handle the tx/rx interrupt. With this, the > static reservation of interrupt numbers for the uart tx/rx/err > interrupts in the linux irq space is not required and simplifies > adding device tree support. Really only hardware changes so for the tty touching aspect of it Acked-by: Alan Cox