lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sun, 9 Nov 2014 17:42:36 -0800 From: Guenter Roeck <linux@...ck-us.net> To: linux-kernel@...r.kernel.org Cc: linux-pm@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>, Chris Zhong <zyw@...k-chips.com>, Zhang Qing <zhangqing@...k-chips.com>, Lee Jones <lee.jones@...aro.org>, Samuel Ortiz <sameo@...ux.intel.com> Subject: [PATCH v6 19/48] mfd: rk808: Register power-off handler with kernel power-off handler Register with kernel power-off handler instead of setting pm_power_off directly. Register with low priority to reflect that the original code only sets pm_power_off if it was not already set. Cc: Chris Zhong <zyw@...k-chips.com> Cc: Zhang Qing <zhangqing@...k-chips.com> Acked-by: Lee Jones <lee.jones@...aro.org> Signed-off-by: Guenter Roeck <linux@...ck-us.net> --- v6: - This patch: No change. Global: Replaced priority defines with enum. v5: - Rebase to v3.18-rc3 v4: - Do not use notifiers but internal functions and data structures to manage the list of power-off handlers. Drop unused parameters from callbacks, and make the power-off function type void v3: - Replace poweroff in all newly introduced variables and in text with power_off or power-off as appropriate - Replace POWEROFF_PRIORITY_xxx with POWER_OFF_PRIORITY_xxx v2: - New patch drivers/mfd/rk808.c | 26 ++++++++++++-------------- include/linux/mfd/rk808.h | 2 ++ 2 files changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c index bd02150..93ffcf0 100644 --- a/drivers/mfd/rk808.c +++ b/drivers/mfd/rk808.c @@ -21,6 +21,7 @@ #include <linux/mfd/rk808.h> #include <linux/mfd/core.h> #include <linux/module.h> +#include <linux/pm.h> #include <linux/regmap.h> struct rk808_reg_data { @@ -147,23 +148,16 @@ static struct regmap_irq_chip rk808_irq_chip = { .init_ack_masked = true, }; -static struct i2c_client *rk808_i2c_client; -static void rk808_device_shutdown(void) +static void rk808_device_shutdown(struct power_off_handler_block *this) { + struct rk808 *rk808 = container_of(this, struct rk808, power_off_hb); int ret; - struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client); - - if (!rk808) { - dev_warn(&rk808_i2c_client->dev, - "have no rk808, so do nothing here\n"); - return; - } ret = regmap_update_bits(rk808->regmap, RK808_DEVCTRL_REG, DEV_OFF_RST, DEV_OFF_RST); if (ret) - dev_err(&rk808_i2c_client->dev, "power off error!\n"); + dev_err(&rk808->i2c->dev, "power off error!\n"); } static int rk808_probe(struct i2c_client *client, @@ -222,9 +216,14 @@ static int rk808_probe(struct i2c_client *client, pm_off = of_property_read_bool(np, "rockchip,system-power-controller"); - if (pm_off && !pm_power_off) { - rk808_i2c_client = client; - pm_power_off = rk808_device_shutdown; + if (pm_off) { + rk808->power_off_hb.handler = rk808_device_shutdown; + rk808->power_off_hb.priority = POWER_OFF_PRIORITY_LOW; + ret = devm_register_power_off_handler(&client->dev, + &rk808->power_off_hb); + if (ret) + dev_warn(&client->dev, + "Failed to register power-off handler\n"); } return 0; @@ -240,7 +239,6 @@ static int rk808_remove(struct i2c_client *client) regmap_del_irq_chip(client->irq, rk808->irq_data); mfd_remove_devices(&client->dev); - pm_power_off = NULL; return 0; } diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h index fb09312..a6619f2 100644 --- a/include/linux/mfd/rk808.h +++ b/include/linux/mfd/rk808.h @@ -19,6 +19,7 @@ #ifndef __LINUX_REGULATOR_rk808_H #define __LINUX_REGULATOR_rk808_H +#include <linux/pm.h> #include <linux/regulator/machine.h> #include <linux/regmap.h> @@ -192,5 +193,6 @@ struct rk808 { struct i2c_client *i2c; struct regmap_irq_chip_data *irq_data; struct regmap *regmap; + struct power_off_handler_block power_off_hb; }; #endif /* __LINUX_REGULATOR_rk808_H */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists