From mboxrd@z Thu Jan 1 00:00:00 1970 From: tushar.behera@linaro.org (Tushar Behera) Date: Fri, 31 May 2013 08:28:16 +0530 Subject: [PATCH] ARM: EXYNOS: Consolidate multiple low-level UART port definitions In-Reply-To: References: <1369888827-9427-1-git-send-email-tushar.behera@linaro.org> Message-ID: <51A811C8.9090509@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 05/31/2013 02:41 AM, Olof Johansson wrote: > Hi, > > On Wed, May 29, 2013 at 9:40 PM, Tushar Behera wrote: >> There are two definitions for low-level UART ports for Exynos platform. >> CONFIG_S3C_LOWLEVEL_UART_PORT is used for printing "Uncompressing >> Linux... done, booting the kernel." and CONFIG_S3C_UART for other >> low-level messages. >> >> The assumption for both the uart ports is that they are pre-configured >> in the bootloader. Since they are essentially the same always, it >> would be good to consolidate them to use only one macro, in this case >> 'DEBUG_S3C_UART' would be a better option. >> >> 'DEBUG_S3C_UART' is defined only if DEBUG_LL is enabled. We can safely >> disable this option when DEBUG_LL is not defined and we can boot various >> boards with different UART port settings. Only drawback of this >> approach is that when DEBUG_LL is not defined, we would be missing the >> print "Uncompressing Linux... done, booting the kernel." >> >> Since CONFIG_S3C_LOWLEVEL_UART_PORT is still used by other Samsung >> boards, the consolidation applies only for ARCH_EXYNOS. >> >> Signed-off-by: Tushar Behera > > This looks reasonable, but you have to convert the other samsung > platforms too -- it's not ok to ignore them. > Sure thing. I will update those platforms in a subsequent patchset. > > -Olof > -- Tushar Behera