From: Tony Lindgren <tony@atomide.com>
To: Nishanth Menon <nm@ti.com>
Cc: Conor Dooley <conor+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Tero Kristo <kristo@kernel.org>,
Vignesh Raghavendra <vigneshr@ti.com>,
Udit Kumar <u-kumar1@ti.com>, Nitin Yadav <n-yadav@ti.com>,
Neha Malcom Francis <n-francis@ti.com>
Subject: Re: [PATCH 1/6] arm64: dts: ti: k3-j721e: Add general purpose timers
Date: Fri, 2 Jun 2023 10:07:24 +0300 [thread overview]
Message-ID: <20230602070724.GH14287@atomide.com> (raw)
In-Reply-To: <20230531213215.602395-2-nm@ti.com>
* Nishanth Menon <nm@ti.com> [230531 21:32]:
> There are 20 general purpose timers on j721e that can be used for
> things like PWM using pwm-omap-dmtimer driver. There are also
> additional ten timers in the MCU domain which are meant for MCU
> firmware usage and hence marked reserved by default.
>
> The odd numbered timers have the option of being cascaded to even
> timers to create a 64 bit non-atomic counter which is racy in simple
> usage, hence the clock muxes are explicitly setup to individual 32 bit
> counters driven off system crystal (HFOSC) as default.
>
> These instantiation differs from J7200 and other SoCs with the device
> IDs and clocks involved for muxing.
Reviewed-by: Tony Lindgren <tony@atomide.com>
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next prev parent reply other threads:[~2023-06-02 7:08 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-31 21:32 [PATCH 0/6] arm64: dts: ti: k3-j7*: Add general purpose timers Nishanth Menon
2023-05-31 21:32 ` [PATCH 1/6] arm64: dts: ti: k3-j721e: " Nishanth Menon
2023-06-02 7:07 ` Tony Lindgren [this message]
2023-05-31 21:32 ` [PATCH 2/6] arm64: dts: ti: k3-j721e: Configure pinctrl for timer IO Nishanth Menon
2023-06-02 7:08 ` Tony Lindgren
2023-05-31 21:32 ` [PATCH 3/6] arm64: dts: ti: k3-j721s2: Add general purpose timers Nishanth Menon
2023-06-02 7:09 ` Tony Lindgren
2023-05-31 21:32 ` [PATCH 4/6] arm64: dts: ti: k3-j721s2: Configure pinctrl for timer IO Nishanth Menon
2023-06-02 7:09 ` Tony Lindgren
2023-05-31 21:32 ` [PATCH 5/6] arm64: dts: ti: k3-j784s4: Add general purpose timers Nishanth Menon
2023-06-02 7:10 ` Tony Lindgren
2023-05-31 21:32 ` [PATCH 6/6] arm64: dts: ti: k3-j784s4: Configure pinctrl for timer IO Nishanth Menon
2023-06-02 7:10 ` Tony Lindgren
2023-06-15 13:19 ` [PATCH 0/6] arm64: dts: ti: k3-j7*: Add general purpose timers Vignesh Raghavendra
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