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bh=JMZ/oInEU7oEL9FGIfXqs5RmJGGuh8H+igWGe+fMaH4=; b=H1kYgxqIzzQt2kQak+Uufeo3EADolf6jsIweGprcTT3j4eXLHjkNbk0WDkG4Btg3lu tzYWO+pdjzICEEmDSiEqtiqK1LarLNjiDd+p+iqPk9S+x+/7ScJjYDc7SYKv57uXNAKY PdkDFszm3lrN8njTAjo80r6RNUvDoO2Q92lIbXu2G4P7lEO0xtcDPby1byieyn8V+hrd po+WU7b9i4++CeqGV6LtxLdFo2uUzeyiWMQp+KylapECthz9UjCiBFvf6xUnUSFObRQW qEBRy2Y9TQUFAqCoPtjQ9RHQl3Jo9ZZ1W2AUL5ZfiHIoVCIlzGEr+um+EQqx48IN9BrP 9EcQ== X-Gm-Message-State: AHYfb5jp+qiH3h3DLX/wA+Kn6AyWKa1Z2g+ApBw/ZFNyHJxLjO+4mjaM uzS7axWAtRGsIg== X-Received: by 10.223.167.13 with SMTP id c13mr188417wrd.72.1503434826991; Tue, 22 Aug 2017 13:47:06 -0700 (PDT) Received: from mail.broadcom.com ([192.19.231.250]) by smtp.gmail.com with ESMTPSA id e5sm231723wma.31.2017.08.22.13.47.03 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 22 Aug 2017 13:47:06 -0700 (PDT) From: Kamal Dasu To: cyrille.pitchen@wedev4u.fr, marek.vasut@gmail.com Subject: [PATCH v8 2/2] mtd: spi-nor: Add spi-nor mtd resume handler Date: Tue, 22 Aug 2017 16:45:22 -0400 Message-Id: <1503434722-5429-3-git-send-email-kdasu.kdev@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1503434722-5429-1-git-send-email-kdasu.kdev@gmail.com> References: <1503434722-5429-1-git-send-email-kdasu.kdev@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170822_134729_337611_ACF1A826 X-CRM114-Status: GOOD ( 10.26 ) X-Spam-Score: -2.0 (--) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-2.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2a00:1450:400c:c0c:0:0:0:244 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (kdasu.kdev[at]gmail.com) -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: boris.brezillon@free-electrons.com, f.fainelli@gmail.com, Kamal Dasu , richard@nod.at, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, computersforpeace@gmail.com MIME-Version: 1.0 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Implemented and populated spi-nor mtd PM handlers for resume ops. spi-nor resume op re-initializes spi-nor flash to its probed state by calling the newly implemented spi_nor_init() function. Signed-off-by: Kamal Dasu --- drivers/mtd/spi-nor/spi-nor.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index ab98ecff..69164bc 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -1871,6 +1871,19 @@ static int spi_nor_init(struct spi_nor *nor) return 0; } +/* mtd resume handler */ +static void spi_nor_resume(struct mtd_info *mtd) +{ + struct spi_nor *nor = mtd_to_spi_nor(mtd); + struct device *dev = nor->dev; + int ret; + + /* re-initialize the nor chip */ + ret = spi_nor_init(nor); + if (ret) + dev_err(dev, "resume() failed\n"); +} + int spi_nor_scan(struct spi_nor *nor, const char *name, const struct spi_nor_hwcaps *hwcaps) { @@ -1947,6 +1960,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, mtd->size = params.size; mtd->_erase = spi_nor_erase; mtd->_read = spi_nor_read; + mtd->_resume = spi_nor_resume; /* NOR protection support for STmicro/Micron chips and similar */ if (JEDEC_MFR(info) == SNOR_MFR_MICRON ||