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Tue, 07 Oct 2014 05:29:35 +0000 From: Guenter Roeck To: linux-kernel@vger.kernel.org Subject: [PATCH 16/44] mfd: tps6586x: Register with kernel poweroff handler Date: Mon, 6 Oct 2014 22:28:18 -0700 Message-Id: <1412659726-29957-17-git-send-email-linux@roeck-us.net> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1412659726-29957-1-git-send-email-linux@roeck-us.net> References: <1412659726-29957-1-git-send-email-linux@roeck-us.net> X-Authenticated_sender: guenter@roeck-us.net X-OutGoing-Spam-Status: No, score=2.8 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=2.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_NONE, SUSPICIOUS_RECIPS, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY,URIBL_RHS_DOB autolearn=no version=3.3.1 X-CTCH-PVer: 0000001 X-CTCH-Spam: Unknown X-CTCH-VOD: Unknown X-CTCH-Flags: 0 X-CTCH-RefID: str=0001.0A020206.54337A65.00C6, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-Score: 0.000 X-CTCH-ScoreCust: 0.000 X-CTCH-Rules: X-CTCH-SenderID: linux@roeck-us.net X-CTCH-SenderID-Flags: 0 X-CTCH-SenderID-TotalMessages: 486 X-CTCH-SenderID-TotalSpam: 0 X-CTCH-SenderID-TotalSuspected: 0 X-CTCH-SenderID-TotalConfirmed: 0 X-CTCH-SenderID-TotalBulk: 0 X-CTCH-SenderID-TotalVirus: 0 X-CTCH-SenderID-TotalRecipients: 0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - lists.infradead.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: mailgid no entry from get_relayhosts_entry X-Source: X-Source-Args: X-Source-Dir: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141006_231843_655141_AAE6BFCF X-CRM114-Status: GOOD ( 12.84 ) X-Spam-Score: 2.7 (++) Cc: linux-m32r-ja@ml.linux-m32r.org, linux-mips@linux-mips.org, linux-efi@vger.kernel.org, linux-ia64@vger.kernel.org, linux-xtensa@linux-xtensa.org, Lee Jones , devel@driverdev.osuosl.org, linux-s390@vger.kernel.org, lguest@lists.ozlabs.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-sh@vger.kernel.org, linux-acpi@vger.kernel.org, xen-devel@lists.xenproject.org, Guenter Roeck , devicetree@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net, linux-pm@vger.kernel.org, adi-buildroot-devel@lists.sourceforge.net, linux-m68k@lists.linux-m68k.org, linux-am33-list@redhat.com, linux-tegra@vger.kernel.org, openipmi-developer@lists.sourceforge.net, linux-metag@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Samuel Ortiz , linux-parisc@vger.kernel.org, linux-cris-kernel@axis.com, linux-alpha@vger.kernel.org, linuxppc-dev@lists.ozlabs.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Level: ** X-Virus-Scanned: ClamAV using ClamSMTP Register with kernel poweroff handler instead of setting pm_power_off directly. Register with a low priority value of 64 to reflect that the original code only sets pm_power_off if it was not already set. Cc: Samuel Ortiz Cc: Lee Jones Signed-off-by: Guenter Roeck --- drivers/mfd/tps6586x.c | 31 +++++++++++++++++++++++-------- 1 file changed, 23 insertions(+), 8 deletions(-) diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index 8e1dbc4..bc14509 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -21,10 +21,12 @@ #include #include #include +#include #include #include #include #include +#include #include #include @@ -133,6 +135,8 @@ struct tps6586x { u32 irq_en; u8 mask_reg[5]; struct irq_domain *irq_domain; + + struct notifier_block poweroff_nb; }; static inline struct tps6586x *dev_to_tps6586x(struct device *dev) @@ -472,13 +476,18 @@ static const struct regmap_config tps6586x_regmap_config = { .cache_type = REGCACHE_RBTREE, }; -static struct device *tps6586x_dev; -static void tps6586x_power_off(void) +static int tps6586x_power_off(struct notifier_block *this, + unsigned long unused1, void *unused2) { - if (tps6586x_clr_bits(tps6586x_dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT)) - return; + struct tps6586x *tps6586x = container_of(this, struct tps6586x, + poweroff_nb); + + if (tps6586x_clr_bits(tps6586x->dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT)) + return NOTIFY_DONE; - tps6586x_set_bits(tps6586x_dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT); + tps6586x_set_bits(tps6586x->dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT); + + return NOTIFY_DONE; } static void tps6586x_print_version(struct i2c_client *client, int version) @@ -575,9 +584,13 @@ static int tps6586x_i2c_probe(struct i2c_client *client, goto err_add_devs; } - if (pdata->pm_off && !pm_power_off) { - tps6586x_dev = &client->dev; - pm_power_off = tps6586x_power_off; + if (pdata->pm_off) { + tps6586x->poweroff_nb.notifier_call = tps6586x_power_off; + tps6586x->poweroff_nb.priority = 64; + ret = register_poweroff_handler(&tps6586x->poweroff_nb); + if (ret) + dev_err(&client->dev, + "failed to register poweroff handler\n"); } return 0; @@ -594,6 +607,8 @@ static int tps6586x_i2c_remove(struct i2c_client *client) { struct tps6586x *tps6586x = i2c_get_clientdata(client); + unregister_poweroff_handler(&tps6586x->poweroff_nb); + tps6586x_remove_subdevs(tps6586x); mfd_remove_devices(tps6586x->dev); if (client->irq)