From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Date: Wed, 27 Oct 2021 21:17:02 +0000 Subject: [PATCH v2 32/45] mfd: retu: Use devm_register_simple_power_off_handler() Message-Id: <20211027211715.12671-33-digetx@gmail.com> List-Id: References: <20211027211715.12671-1-digetx@gmail.com> In-Reply-To: <20211027211715.12671-1-digetx@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Thierry Reding , Jonathan Hunter , Lee Jones , "Rafael J . Wysocki" , Mark Brown , Andrew Morton , Guenter Roeck , Russell King , Daniel Lezcano , Andy Shevchenko , Ulf Hansson Cc: Catalin Marinas , Will Deacon , Guo Ren , Geert Uytterhoeven , Greg Ungerer , Joshua Thompson , Thomas Bogendoerfer , Nick Hu , Greentime Hu , Vincent Chen , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yoshinori Sato , Rich Felker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , Len Brown , Santosh Shilimkar , Krzysztof Kozlowski , Linus Walleij , Chen-Yu Tsai , =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= , Tony Lindgren , Liam Girdwood , Philipp Zabel , Vladimir Zapolskiy , Avi Fishman , Tomer Maimon , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , Pavel Machek , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, linux-omap@vger.kernel.org, openbmc@lists.ozlabs.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org Use devm_register_simple_power_off_handler() that replaces global pm_power_off variable and allows to register multiple power-off handlers. Signed-off-by: Dmitry Osipenko --- drivers/mfd/retu-mfd.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c index c748fd29a220..d18f05c1f095 100644 --- a/drivers/mfd/retu-mfd.c +++ b/drivers/mfd/retu-mfd.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -81,9 +82,6 @@ static struct regmap_irq_chip retu_irq_chip = { .ack_base = RETU_REG_IDR, }; -/* Retu device registered for the power off. */ -static struct retu_dev *retu_pm_power_off; - static const struct resource tahvo_usb_res[] = { { .name = "tahvo-usb", @@ -165,12 +163,12 @@ int retu_write(struct retu_dev *rdev, u8 reg, u16 data) } EXPORT_SYMBOL_GPL(retu_write); -static void retu_power_off(void) +static void retu_power_off(void *data) { - struct retu_dev *rdev = retu_pm_power_off; + struct retu_dev *rdev = data; int reg; - mutex_lock(&retu_pm_power_off->mutex); + mutex_lock(&rdev->mutex); /* Ignore power button state */ regmap_read(rdev->regmap, RETU_REG_CC1, ®); @@ -183,7 +181,7 @@ static void retu_power_off(void) for (;;) cpu_relax(); - mutex_unlock(&retu_pm_power_off->mutex); + mutex_unlock(&rdev->mutex); } static int retu_regmap_read(void *context, const void *reg, size_t reg_size, @@ -261,6 +259,17 @@ static int retu_probe(struct i2c_client *i2c, const struct i2c_device_id *id) (ret & RETU_REG_ASICR_VILMA) ? rdat->companion_name : "", (ret >> 4) & 0x7, ret & 0xf); + if (i2c->addr = 1) { + ret = devm_register_simple_power_off_handler(&i2c->dev, + retu_power_off, + rdev); + if (ret) { + dev_err(rdev->dev, + "could not register power-off handler: %d\n", ret); + return ret; + } + } + /* Mask all interrupts. */ ret = retu_write(rdev, rdat->irq_chip->mask_base, 0xffff); if (ret < 0) @@ -279,10 +288,6 @@ static int retu_probe(struct i2c_client *i2c, const struct i2c_device_id *id) return ret; } - if (i2c->addr = 1 && !pm_power_off) { - retu_pm_power_off = rdev; - pm_power_off = retu_power_off; - } return 0; } @@ -291,10 +296,6 @@ static int retu_remove(struct i2c_client *i2c) { struct retu_dev *rdev = i2c_get_clientdata(i2c); - if (retu_pm_power_off = rdev) { - pm_power_off = NULL; - retu_pm_power_off = NULL; - } mfd_remove_devices(rdev->dev); regmap_del_irq_chip(i2c->irq, rdev->irq_data); -- 2.33.1