| Message ID | 20211208003946.139423-1-chanho61.park@samsung.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | arm64: dts: exynosautov9: convert serial_0 for USI | expand |
On 08/12/2021 01:39, Chanho Park wrote: > According to USI v2 driver change[1], serial_0 node should be converted to > use the USI node hierarchy. syscon_peric0 will be used as a syscon node > to control the USI00_USI_SW_CONF register. > This also changes the serial node name from uart@ to serial@. > > [1]: https://lore.kernel.org/linux-samsung-soc/20211204195757.8600-2-semen.protsenko@linaro.org/ > > Cc: Sam Protsenko <semen.protsenko@linaro.org> > Signed-off-by: Chanho Park <chanho61.park@samsung.com> > --- > .../boot/dts/exynos/exynosautov9-sadk.dts | 4 +++ > arch/arm64/boot/dts/exynos/exynosautov9.dtsi | 36 ++++++++++++++----- > 2 files changed, 32 insertions(+), 8 deletions(-) > > diff --git a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts > index ef46d7aa6e28..6cc903443809 100644 > --- a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts > +++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts > @@ -41,6 +41,10 @@ ufs_0_fixed_vcc_reg: regulator-0 { > }; > }; > > +&usi_0 { > + status = "okay"; > +}; > + Put this one alphabetically in DTS. > &serial_0 { > status = "okay"; > }; Best regards, Krzysztof
Hi, > -----Original Message----- > From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> > Sent: Wednesday, December 8, 2021 6:15 PM > To: Chanho Park <chanho61.park@samsung.com>; Rob Herring > <robh+dt@kernel.org> > Cc: devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org; > linux-samsung-soc@vger.kernel.org; Sam Protsenko > <semen.protsenko@linaro.org> > Subject: Re: [PATCH] arm64: dts: exynosautov9: convert serial_0 for USI > > On 08/12/2021 01:39, Chanho Park wrote: > > According to USI v2 driver change[1], serial_0 node should be > > converted to use the USI node hierarchy. syscon_peric0 will be used as > > a syscon node to control the USI00_USI_SW_CONF register. > > This also changes the serial node name from uart@ to serial@. > > > > [1]: > > https://lore.kernel.org/linux-samsung-soc/20211204195757.8600-2-semen. > > protsenko@linaro.org/ > > > > Cc: Sam Protsenko <semen.protsenko@linaro.org> > > Signed-off-by: Chanho Park <chanho61.park@samsung.com> > > --- > > .../boot/dts/exynos/exynosautov9-sadk.dts | 4 +++ > > arch/arm64/boot/dts/exynos/exynosautov9.dtsi | 36 > > ++++++++++++++----- > > 2 files changed, 32 insertions(+), 8 deletions(-) > > > > diff --git a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts > > b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts > > index ef46d7aa6e28..6cc903443809 100644 > > --- a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts > > +++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts > > @@ -41,6 +41,10 @@ ufs_0_fixed_vcc_reg: regulator-0 { > > }; > > }; > > > > +&usi_0 { > > + status = "okay"; > > +}; > > + > > Put this one alphabetically in DTS. Regarding usi / serial/hsi2c/spi nodes, I thought it looks better to keep the order of DTSi. Anyway, I'll follow alphabetical order in DTS. I'll apply this next patch. Best Regards, Chanho Park
diff --git a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts index ef46d7aa6e28..6cc903443809 100644 --- a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts +++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts @@ -41,6 +41,10 @@ ufs_0_fixed_vcc_reg: regulator-0 { }; }; +&usi_0 { + status = "okay"; +}; + &serial_0 { status = "okay"; }; diff --git a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi index a960c0bc2dba..de8fcb82eaec 100644 --- a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi +++ b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi @@ -7,6 +7,7 @@ */ #include <dt-bindings/interrupt-controller/arm-gic.h> +#include <dt-bindings/soc/samsung,exynos-usi.h> / { compatible = "samsung,exynosautov9"; @@ -256,16 +257,35 @@ syscon_fsys2: syscon@17c20000 { reg = <0x17c20000 0x1000>; }; - /* USI: UART */ - serial_0: uart@10300000 { - compatible = "samsung,exynos850-uart"; - reg = <0x10300000 0x100>; - interrupts = <GIC_SPI 345 IRQ_TYPE_LEVEL_HIGH>; - pinctrl-names = "default"; - pinctrl-0 = <&uart0_bus_dual>; + syscon_peric0: syscon@10220000 { + compatible = "samsung,exynosautov9-sysreg", "syscon"; + reg = <0x10220000 0x2000>; + }; + + usi_0: usi@103000c0 { + compatible = "samsung,exynos850-usi"; + reg = <0x103000c0 0x20>; + samsung,sysreg = <&syscon_peric0 0x1000>; + samsung,mode = <USI_V2_UART>; + samsung,clkreq-on; /* needed for UART mode */ + #address-cells = <1>; + #size-cells = <1>; + ranges; clocks = <&uart_clock>, <&uart_clock>; - clock-names = "uart", "clk_uart_baud0"; + clock-names = "pclk", "ipclk"; status = "disabled"; + + /* USI: UART */ + serial_0: serial@10300000 { + compatible = "samsung,exynos850-uart"; + reg = <0x10300000 0xc0>; + interrupts = <GIC_SPI 345 IRQ_TYPE_LEVEL_HIGH>; + pinctrl-names = "default"; + pinctrl-0 = <&uart0_bus_dual>; + clocks = <&uart_clock>, <&uart_clock>; + clock-names = "uart", "clk_uart_baud0"; + status = "disabled"; + }; }; ufs_0_phy: ufs0-phy@17e04000 {
According to USI v2 driver change[1], serial_0 node should be converted to use the USI node hierarchy. syscon_peric0 will be used as a syscon node to control the USI00_USI_SW_CONF register. This also changes the serial node name from uart@ to serial@. [1]: https://lore.kernel.org/linux-samsung-soc/20211204195757.8600-2-semen.protsenko@linaro.org/ Cc: Sam Protsenko <semen.protsenko@linaro.org> Signed-off-by: Chanho Park <chanho61.park@samsung.com> --- .../boot/dts/exynos/exynosautov9-sadk.dts | 4 +++ arch/arm64/boot/dts/exynos/exynosautov9.dtsi | 36 ++++++++++++++----- 2 files changed, 32 insertions(+), 8 deletions(-)