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[83.165.45.250]) by smtp.gmail.com with ESMTPSA id c11sm2620625wmd.36.2021.01.13.05.46.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Jan 2021 05:46:41 -0800 (PST) From: Juan Quintela To: Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Subject: Re: [RFC PATCH v6 06/11] hw/ssi: imx_spi: Rework imx_spi_read() to handle block disabled In-Reply-To: <20210112183529.2011863-7-f4bug@amsat.org> ("Philippe =?utf-8?Q?Mathieu-Daud=C3=A9=22's?= message of "Tue, 12 Jan 2021 19:35:24 +0100") References: <20210112183529.2011863-1-f4bug@amsat.org> <20210112183529.2011863-7-f4bug@amsat.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) Date: Wed, 13 Jan 2021 14:46:40 +0100 Message-ID: <87a6tdgda7.fsf@secure.mitica> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=quintela@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=216.205.24.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: quintela@redhat.com Cc: Peter Maydell , Alistair Francis , Bin Meng , qemu-devel@nongnu.org, Jean-Christophe Dubois , qemu-arm@nongnu.org, Peter Chubb , Bin Meng Errors-To: qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org Sender: "Qemu-arm" X-TUID: 98dhCk5k1R4/ Philippe Mathieu-Daud=C3=A9 wrote: > When the block is disabled, it stay it is 'internal reset logic' > (internal clocks are gated off). Reading any register returns > its reset value. Only update this value if the device is enabled. > > Ref: i.MX 6DQ Applications Processor Reference Manual (IMX6DQRM), > chapter 21.7.3: Control Register (ECSPIx_CONREG) > > Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Juan Quintela