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[86.58.59.25]) by smtp.gmail.com with ESMTPSA id r11sm4727847wrt.84.2019.08.24.01.04.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Aug 2019 01:04:26 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: linux-sunxi@googlegroups.com, megous@megous.com Subject: Re: [linux-sunxi] [PATCH v2 0/3] Add basic support for RTC on Allwinner H6 SoC Date: Sat, 24 Aug 2019 10:04:24 +0200 Message-ID: <3686940.YHdMKP4MVq@jernej-laptop> In-Reply-To: <20190820151934.3860-1-megous@megous.com> References: <20190820151934.3860-1-megous@megous.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190824_010430_630807_06E79258 X-CRM114-Status: GOOD ( 17.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Alessandro Zummo , Alexandre Belloni , devicetree@vger.kernel.org, Maxime Ripard , linux-kernel@vger.kernel.org, Chen-Yu Tsai , Rob Herring , linux-arm-kernel@lists.infradead.org, linux-rtc@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi! Dne torek, 20. avgust 2019 ob 17:19:31 CEST je megous@megous.com napisal(a): > From: Ondrej Jirman > > I went through the datasheets for H6 and H5, and compared the differences. > RTCs are largely similar, but not entirely compatible. Incompatibilities > are in details not yet implemented by the rtc driver though. > > I also corrected the clock tree in H6 DTSI. > > This patchset is necessary for implementing the WiFi/Bluetooth support > on boards using H6 SoC. > > There was some discussion previously of describing HOSC, DCXO and XO > oscillators and clocks as part of RTC in DT, but I decided against it > because it's not necessary, becuse information that would be provided > as a part of DT can already be determined at runtime from RTC registers, > so this woudn't add any value and would only introduce complications > to the driver. See: https://patchwork.kernel.org/cover/10898083/ > > Please take a look. > > > Thank you and regards, > Ondrej Jirman Sorry for a bit late test, but with your patches on Tanix TX6 box I get this in dmesg: [ 17.431742] sun6i-rtc 7000000.rtc: Failed to set rtc time. [ 20.439742] sun6i-rtc 7000000.rtc: rtc is still busy. [ 21.435744] sun6i-rtc 7000000.rtc: rtc is still busy. [ 24.055741] sun6i-rtc 7000000.rtc: rtc is still busy. [ 24.439752] sun6i-rtc 7000000.rtc: rtc is still busy. Last line is repeated non-stop. Any idea what could be wrong? Best regards, Jernej _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel