From mboxrd@z Thu Jan 1 00:00:00 1970 From: k.kozlowski@samsung.com (Krzysztof Kozlowski) Date: Wed, 17 Aug 2016 12:28:48 +0200 Subject: [PATCH] ARM: dts: exynos: Use stdout non-deprecated property and add serial options to Odroid XU/XU3/XU4 In-Reply-To: <20160817102506.GD30900@leverpostej> References: <1471419298-10414-1-git-send-email-k.kozlowski@samsung.com> <20160817102506.GD30900@leverpostej> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 08/17/2016 12:25 PM, Mark Rutland wrote: > On Wed, Aug 17, 2016 at 09:34:58AM +0200, Krzysztof Kozlowski wrote: >> The "linux,stdout-path" is deprecated. >> >> Add serial options so the console can be properly configured when >> bootloader does not pass "console" parameter to command line. Without >> options and lack of "console", the serial output dies during boot (just >> after probing sound). > > I'm confused. Is this just a cleanup (given "linux,stdout-path" is > deprecated but still supported), or a bug fix? There is no bug, so rather this is cleanup and improvement in one. Usually we pass full console=ttySAC2,115200n8 from UBoot to command line. The usage of serial options allows skipping that. I can split the cleanup part from improvement. To me it looked a little bit too much but I don't mind. > I guess that prior to this patch Linux might change the rate of the > console, but otherwise it should work. It still can be overridden by command line if needed. Best regards, Krzysztof