From mboxrd@z Thu Jan 1 00:00:00 1970 From: sebastian.hesselbarth@gmail.com (Sebastian Hesselbarth) Date: Wed, 27 May 2015 10:36:25 +0200 Subject: [PATCH] ARM: berlin: add SPI nodes for BG2Q In-Reply-To: <20150525090100.GC29660@kwain> References: <1432126385-27402-1-git-send-email-antoine.tenart@free-electrons.com> <555D1706.7040309@gmail.com> <20150525090100.GC29660@kwain> Message-ID: <55658209.4000904@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 25.05.2015 11:01, Antoine Tenart wrote: > On Thu, May 21, 2015 at 01:21:42AM +0200, Sebastian Hesselbarth wrote: >> On 20.05.2015 14:53, Antoine Tenart wrote: >>> + >>> + spi0_pmux: spi0-pmux { >>> + groups = "G8", "G9", "G10", "G11"; >>> + function = "spi1"; >>> + }; >> >> ... can you check which of G8-G11 are actually clock/data and which >> are CSn lines? >> >> CSn lines should all be optional and per-board pinmux - same for the >> other spi pinmux. > > G8 and GSM3 are for clock/data, the other groups (G9-11 and GSM0-2) > control the CSn lines. I'll update. Re-reading this mail after you published v2, I thought it would be a good idea to add this information to the pinmux driver. We already have some /* comments */ about the actual function, why not add the above, too? Also, I guess G8/GSM3 are for clk/data _and_ cs0n while G9-G11/GSM0-GSM2 add cs{1,2,3}n ? Sebastian