From: Tomasz Figa <t.figa@samsung.com> To: linux-arm-kernel@lists.infradead.org Cc: devicetree-discuss@lists.ozlabs.org, linux-samsung-soc@vger.kernel.org, kgene.kim@samsung.com, kyungmin.park@samsung.com, tomasz.figa@gmail.com, m.szyprowski@samsung.com, arnd@arndb.de, john.stultz@linaro.org, tglx@linutronix.de, olof@lixom.net, ben-linux@fluff.org, thomas.abraham@linaro.org, Tomasz Figa <t.figa@samsung.com> Subject: [PATCH v3 01/13] Documentation: Add device tree bindings for Samsung PWM timers Date: Tue, 23 Apr 2013 17:46:22 +0200 [thread overview] Message-ID: <1366731994-7478-2-git-send-email-t.figa@samsung.com> (raw) In-Reply-To: <1366731994-7478-1-git-send-email-t.figa@samsung.com> This patch adds missing documentation describing Device Tree bindings for Samsung PWM timers. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> --- .../devicetree/bindings/pwm/pwm-samsung.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-samsung.txt diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt new file mode 100644 index 0000000..ac67c68 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt @@ -0,0 +1,43 @@ +* Samsung PWM timers + +Samsung SoCs contain PWM timer blocks which can be used for system clock source +and clock event timers, as well as to drive SoC outputs with PWM signal. Each +PWM timer block provides 5 PWM channels (not all of them can drive physical +outputs - see SoC and board manual). + +Be aware that the clocksource driver supports only uniprocessor systems. + +Required properties: +- compatible : should be one of following: + samsung,s3c2410-pwm - for 16-bit timers present on S3C24xx SoCs + samsung,s3c6400-pwm - for 32-bit timers present on S3C64xx SoCs + samsung,s5p6440-pwm - for 32-bit timers present on S5P64x0 SoCs + samsung,s5pc100-pwm - for 32-bit timers present on S5PC100, S5PV210, + Exynos4210 rev0 SoCs + samsung,exynos4210-pwm - for 32-bit timers present on Exynos4210, + Exynos4x12 and Exynos5250 SoCs +- reg: base address and size of register area +- interrupts: list of timer interrupts (one interrupt per timer, starting at + timer 0) +- #pwm-cells: number of cells used for PWM specifier - must be 3 + the specifier format is as follows: + - phandle to PWM controller node + - index of PWM channel (from 0 to 4) + - PWM signal period in nanoseconds + - bitmask of optional PWM flags: + 0x1 - invert PWM signal + +Optional properties: +- samsung,pwm-outputs: list of PWM channels used as PWM outputs on particular + platform - an array of up to 5 elements being indices of PWM channels + (from 0 to 4), the order does not matter. + +Example: + pwm@7f006000 { + compatible = "samsung,s3c6400-pwm"; + reg = <0x7f006000 0x1000>; + interrupt-parent = <&vic0>; + interrupts = <23>, <24>, <25>, <27>, <28>; + samsung,pwm-outputs = <0>, <1>; + #pwm-cells = <3>; + } -- 1.8.2.1
WARNING: multiple messages have this Message-ID (diff)
From: t.figa@samsung.com (Tomasz Figa) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 01/13] Documentation: Add device tree bindings for Samsung PWM timers Date: Tue, 23 Apr 2013 17:46:22 +0200 [thread overview] Message-ID: <1366731994-7478-2-git-send-email-t.figa@samsung.com> (raw) In-Reply-To: <1366731994-7478-1-git-send-email-t.figa@samsung.com> This patch adds missing documentation describing Device Tree bindings for Samsung PWM timers. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> --- .../devicetree/bindings/pwm/pwm-samsung.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-samsung.txt diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt new file mode 100644 index 0000000..ac67c68 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt @@ -0,0 +1,43 @@ +* Samsung PWM timers + +Samsung SoCs contain PWM timer blocks which can be used for system clock source +and clock event timers, as well as to drive SoC outputs with PWM signal. Each +PWM timer block provides 5 PWM channels (not all of them can drive physical +outputs - see SoC and board manual). + +Be aware that the clocksource driver supports only uniprocessor systems. + +Required properties: +- compatible : should be one of following: + samsung,s3c2410-pwm - for 16-bit timers present on S3C24xx SoCs + samsung,s3c6400-pwm - for 32-bit timers present on S3C64xx SoCs + samsung,s5p6440-pwm - for 32-bit timers present on S5P64x0 SoCs + samsung,s5pc100-pwm - for 32-bit timers present on S5PC100, S5PV210, + Exynos4210 rev0 SoCs + samsung,exynos4210-pwm - for 32-bit timers present on Exynos4210, + Exynos4x12 and Exynos5250 SoCs +- reg: base address and size of register area +- interrupts: list of timer interrupts (one interrupt per timer, starting at + timer 0) +- #pwm-cells: number of cells used for PWM specifier - must be 3 + the specifier format is as follows: + - phandle to PWM controller node + - index of PWM channel (from 0 to 4) + - PWM signal period in nanoseconds + - bitmask of optional PWM flags: + 0x1 - invert PWM signal + +Optional properties: +- samsung,pwm-outputs: list of PWM channels used as PWM outputs on particular + platform - an array of up to 5 elements being indices of PWM channels + (from 0 to 4), the order does not matter. + +Example: + pwm at 7f006000 { + compatible = "samsung,s3c6400-pwm"; + reg = <0x7f006000 0x1000>; + interrupt-parent = <&vic0>; + interrupts = <23>, <24>, <25>, <27>, <28>; + samsung,pwm-outputs = <0>, <1>; + #pwm-cells = <3>; + } -- 1.8.2.1
next prev parent reply other threads:[~2013-04-23 15:46 UTC|newest] Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-04-23 15:46 [PATCH v3 00/13] ARM: EXYNOS: Fix Universal C210 support Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa [this message] 2013-04-23 15:46 ` [PATCH v3 01/13] Documentation: Add device tree bindings for Samsung PWM timers Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 02/13] clocksource: samsung_pwm_timer: Let platforms select the driver Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 03/13] clocksource: samsung_pwm_timer: Make PWM spinlock global Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 04/13] clocksource: samsung_pwm_timer: Keep all driver data in a structure Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 05/13] clocksource: samsung_pwm_timer: Drop unused samsung_pwm struct Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 06/13] clocksource: samsung_pwm_timer: Add support for non-DT platforms Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 07/13] clocksource: samsung_pwm_timer: Use proper clockevents max_delta Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 08/13] clocksource: samsung_pwm_timer: Correct programming of clock events Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 09/13] clocksource: samsung_pwm_timer: Work around rounding errors in clockevents core Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 10/13] ARM: SAMSUNG: Do not register legacy timer interrupts on Exynos Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 11/13] ARM: EXYNOS: Fix support of Exynos4210 rev0 SoC Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-28 19:22 ` Olof Johansson 2013-04-28 19:22 ` Olof Johansson 2013-04-28 22:17 ` Tomasz Figa 2013-04-28 22:17 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 12/13] ARM: dts: exynos4: Add node for PWM device Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-23 15:46 ` [PATCH v3 13/13] ARM: dts: exynos4210: Add basic dts file for universal_c210 board Tomasz Figa 2013-04-23 15:46 ` Tomasz Figa 2013-04-24 15:56 ` [PATCH v3 00/13] ARM: EXYNOS: Fix Universal C210 support Tomasz Figa 2013-04-24 15:56 ` Tomasz Figa 2013-04-25 14:46 ` Arnd Bergmann 2013-04-25 14:46 ` Arnd Bergmann 2013-04-25 15:48 ` Kukjin Kim 2013-04-25 15:48 ` Kukjin Kim 2013-04-27 0:34 ` Olof Johansson 2013-04-27 0:34 ` Olof Johansson 2013-04-28 6:52 ` Kukjin Kim 2013-04-28 6:52 ` Kukjin Kim 2013-04-28 19:17 ` Olof Johansson 2013-04-28 19:17 ` Olof Johansson
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