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Mon, 25 Sep 2023 08:19:27 -0500 Received: from DFLE101.ent.ti.com (10.64.6.22) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Mon, 25 Sep 2023 08:19:26 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Mon, 25 Sep 2023 08:19:27 -0500 Received: from localhost (ileaxei01-snat.itg.ti.com [10.180.69.5]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 38PDJRx8065676; Mon, 25 Sep 2023 08:19:27 -0500 Date: Mon, 25 Sep 2023 08:19:27 -0500 From: Nishanth Menon To: Keerthy CC: , , , , , , , , Subject: Re: [PATCH v4 5/7] arm64: dts: ti: k3-j784s4-mcu: Add the main domain watchdog instances Message-ID: <20230925131927.f7ff2u2ip3jxejyg@dreadful> References: <20230925081332.15906-1-j-keerthy@ti.com> <20230925081332.15906-6-j-keerthy@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20230925081332.15906-6-j-keerthy@ti.com> X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Mon, 25 Sep 2023 06:19:51 -0700 (PDT) On 13:43-20230925, Keerthy wrote: > There are totally 2 instances of watchdog module in MCU domain. > > Signed-off-by: Keerthy > --- > .../boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi | 20 +++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi > index a7b5c4cb7d3e..0b7cc277a567 100644 > --- a/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi > @@ -714,4 +714,24 @@ > ti,esm-pins = <63>; > bootph-pre-ram; > }; > + > + mcu_watchdog0: watchdog@40600000 { > + compatible = "ti,j7-rti-wdt"; > + reg = <0x00 0x40600000 0x00 0x100>; > + clocks = <&k3_clks 367 1>; > + power-domains = <&k3_pds 367 TI_SCI_PD_EXCLUSIVE>; > + assigned-clocks = <&k3_clks 367 0>; > + assigned-clock-parents = <&k3_clks 367 4>; > + status = "disabled"; > + }; > + > + mcu_watchdog1: watchdog@40610000 { > + compatible = "ti,j7-rti-wdt"; > + reg = <0x00 0x40610000 0x00 0x100>; > + clocks = <&k3_clks 368 1>; > + power-domains = <&k3_pds 368 TI_SCI_PD_EXCLUSIVE>; > + assigned-clocks = <&k3_clks 368 0>; > + assigned-clock-parents = <&k3_clks 368 4>; > + status = "disabled"; Explain in commit message as to why these are disabled. I believe it is because this RTI instances are tightly coupled to the micro controllers. but that information needs to be documented. > + }; > }; > -- > 2.17.1 > -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D