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[82.149.19.102]) by smtp.gmail.com with ESMTPSA id v2-20020a170906292200b007aacfce2a91sm4605452ejd.27.2022.11.14.12.49.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Nov 2022 12:50:00 -0800 (PST) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Chen-Yu Tsai , Samuel Holland Cc: Ivaylo Dimitrov , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev, Andre Przywara , Samuel Holland Subject: Re: [PATCH v3 2/3] bus: sunxi-rsb: Support atomic transfers Date: Mon, 14 Nov 2022 21:49:58 +0100 Message-ID: <3506150.LM0AJKV5NW@jernej-laptop> In-Reply-To: <20221114015749.28490-3-samuel@sholland.org> References: <20221114015749.28490-1-samuel@sholland.org> <20221114015749.28490-3-samuel@sholland.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221114_125004_635426_5020628E X-CRM114-Status: UNSURE ( 8.21 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Dne ponedeljek, 14. november 2022 ob 02:57:48 CET je Samuel Holland napisal(a): > When communicating with a PMIC during system poweroff (pm_power_off()), > IRQs are disabled and we are in a RCU read-side critical section, so we > cannot use wait_for_completion_io_timeout(). Instead, poll the status > register for transfer completion. > > Fixes: d787dcdb9c8f ("bus: sunxi-rsb: Add driver for Allwinner Reduced > Serial Bus") Signed-off-by: Samuel Holland Reviewed-by: Jernej Skrabec Best regards, Jernej _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel