From mboxrd@z Thu Jan 1 00:00:00 1970 From: sunil.m-fINqtvHxh+hg9hUCZPvPmw@public.gmane.org Subject: [PATCH] arm: dts: am33xx: Add spi alias to match SOC schematics Date: Tue, 22 Aug 2017 16:27:33 +0530 Message-ID: <1503399453-4946-1-git-send-email-sunil.m@techveda.org> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: bcousson-rdvid1DuHRBWk0Htik3J/w@public.gmane.org, tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org Cc: karthik-fINqtvHxh+hg9hUCZPvPmw@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Suniel Mahesh List-Id: devicetree@vger.kernel.org From: Suniel Mahesh Linux bus numbers should match the numbers defined by the chip manufacturer. This patch add's spi aliases to acheive that bus naming convention. Signed-off-by: Suniel Mahesh Signed-off-by: Karthik Tummala Tested-by: Karthik Tummala --- Note: - Patch was compile tested and built(ARCH=arm) on next-20170822. - Patch was hardware tested on AM335x (McSPI controller) with spi flash chips. - No build/run-time issues reported. - At present bus numbers are represented as spi1 and spi2 in sysfs instead of spi0 and spi1, as defined in SOC schematics. - The commit: "spi: Pick spi bus number from Linux idr or spi alias" (SHA1:9b61e302210eba55768962f2f11e96bb508c2408) has introduced bus numbering which happens dynamically either via Linux IDR or spi alias for master drivers. - The commit: "spi: omap: Allocate bus number from spi framework" (SHA1:b590782afe0a99fca84f451252ed7e2d64b2f155) is now using spi framework to allocate bus numbers. --- arch/arm/boot/dts/am33xx.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 7d7ca05..e58fab8 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -36,6 +36,8 @@ phy1 = &usb1_phy; ethernet0 = &cpsw_emac0; ethernet1 = &cpsw_emac1; + spi0 = &spi0; + spi1 = &spi1; }; cpus { -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html