| Message ID | 1505111416-21594-1-git-send-email-sunil.m@techveda.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
* sunil.m@techveda.org <sunil.m@techveda.org> [170910 23:31]: > From: Suniel Mahesh <sunil.m@techveda.org> > > Linux bus numbers should match the numbers defined by the chip > manufacturer. This patch add's spi aliases to acheive that bus > naming convention. OK applying into omap-for-v4.14/fixes to follow what we do already for am4372 and dra7. Regards, Tony > Signed-off-by: Suniel Mahesh <sunil.m@techveda.org> > Signed-off-by: Karthik Tummala <karthik@techveda.org> > Tested-by: Karthik Tummala <karthik@techveda.org> > --- > Note: > - Patch was compile tested and built(ARCH=arm) on next-20170911. > - 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 >
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 {