| Message ID | 1364302821-17989-1-git-send-email-s.nawrocki@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Sylwester Nawrocki wrote: > > This patch adds device tree node for the SYSREG registers block > found in Samsung S5P/Exynos SoC series. The SYSREG module > generates control signals for the ARM CPU and various IP blocks > and buses. SYSREG block registers are exposed through APB bus > interface. A sysreg device tree node is to be associated with > mfd syscon driver and all SYSREG clients should use regmap > interface it provides. It allows to eliminate any possible races > and conflicts should different drivers attempt to concurrently > access same register. > > Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> > Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> > --- > > Changes since v1: > - Added missing "samsung," prefix to the compatible property, > - the binding documentation moved to ...bindings/arm/samsung > as SYSREG block can be also found on other SoCs than Exynos. > --- > .../devicetree/bindings/arm/samsung/sysreg.txt | 7 +++++++ > arch/arm/boot/dts/exynos4.dtsi | 5 +++++ > 2 files changed, 12 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/arm/samsung/sysreg.txt > > diff --git a/Documentation/devicetree/bindings/arm/samsung/sysreg.txt > b/Documentation/devicetree/bindings/arm/samsung/sysreg.txt > new file mode 100644 > index 0000000..5039c0a > --- /dev/null > +++ b/Documentation/devicetree/bindings/arm/samsung/sysreg.txt > @@ -0,0 +1,7 @@ > +SAMSUNG S5P/Exynos SoC series System Registers (SYSREG) > + > +Properties: > + - name : should be 'sysreg'; > + - compatible : should contain "samsung,<chip name>-sysreg", "syscon"; > + For Exynos4 SoC series it should be "samsung,exynos4-sysreg", "syscon"; > + - reg : offset and length of the register set. > diff --git a/arch/arm/boot/dts/exynos4.dtsi > b/arch/arm/boot/dts/exynos4.dtsi > index 9ac47d5..462f055 100644 > --- a/arch/arm/boot/dts/exynos4.dtsi > +++ b/arch/arm/boot/dts/exynos4.dtsi > @@ -82,6 +82,11 @@ > reg = <0x10440000 0x1000>; > }; > > + sys_reg: sysreg { > + compatible = "samsung,exynos4-sysreg", "syscon"; > + reg = <0x10010000 0x400>; > + }; > + > watchdog@10060000 { > compatible = "samsung,s3c2410-wdt"; > reg = <0x10060000 0x100>; > -- > 1.7.9.5 Looks ok to me, applied. Thanks. - Kukjin -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/arm/samsung/sysreg.txt b/Documentation/devicetree/bindings/arm/samsung/sysreg.txt new file mode 100644 index 0000000..5039c0a --- /dev/null +++ b/Documentation/devicetree/bindings/arm/samsung/sysreg.txt @@ -0,0 +1,7 @@ +SAMSUNG S5P/Exynos SoC series System Registers (SYSREG) + +Properties: + - name : should be 'sysreg'; + - compatible : should contain "samsung,<chip name>-sysreg", "syscon"; + For Exynos4 SoC series it should be "samsung,exynos4-sysreg", "syscon"; + - reg : offset and length of the register set. diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi index 9ac47d5..462f055 100644 --- a/arch/arm/boot/dts/exynos4.dtsi +++ b/arch/arm/boot/dts/exynos4.dtsi @@ -82,6 +82,11 @@ reg = <0x10440000 0x1000>; }; + sys_reg: sysreg { + compatible = "samsung,exynos4-sysreg", "syscon"; + reg = <0x10010000 0x400>; + }; + watchdog@10060000 { compatible = "samsung,s3c2410-wdt"; reg = <0x10060000 0x100>;