From 52929715634ad36782bd7018ab0bf59a6619c393 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sat, 30 Mar 2013 14:00:08 -0700 Subject: hwmon: (it87) Use is_visible for voltage sensors Simplify code and reduce object size by more than 300 bytes on x86_64. Tested-by: Martin Blumenstingl Signed-off-by: Guenter Roeck --- drivers/hwmon/it87.c | 124 +++++++++++++++++++++++---------------------------- 1 file changed, 56 insertions(+), 68 deletions(-) (limited to 'drivers/hwmon/it87.c') diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 4b38ecb91959..81c11d1d67e2 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -471,6 +471,7 @@ struct it87_data { unsigned long last_updated; /* In jiffies */ u16 in_scaled; /* Internal voltage sensors are scaled */ + u16 has_in; /* Bitfield, voltage sensors enabled */ u8 in[10][3]; /* [nr][0]=in, [1]=min, [2]=max */ u8 has_fan; /* Bitfield, fans enabled */ u16 fan[6][2]; /* Register values, [nr][0]=fan, [1]=min */ @@ -482,6 +483,7 @@ struct it87_data { u8 vid; /* Register encoding, combined */ u8 vrm; u32 alarms; /* Register encoding, combined */ + bool has_beep; /* true if beep supported */ u8 beeps; /* Register encoding */ u8 fan_main_ctrl; /* Register value */ u8 fan_ctl; /* Register value */ @@ -1751,74 +1753,85 @@ static ssize_t show_name(struct device *dev, struct device_attribute } static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); -static struct attribute *it87_attributes_in[10][5] = { +static umode_t it87_in_is_visible(struct kobject *kobj, + struct attribute *attr, int index) { + struct device *dev = container_of(kobj, struct device, kobj); + struct it87_data *data = dev_get_drvdata(dev); + int i = index / 5; /* voltage index */ + int a = index % 5; /* attribute index */ + + if (index >= 40) { /* in8, in9 only have input attributes */ + i = index - 40 + 8; + a = 0; + } + + if (!(data->has_in & (1 << i))) + return 0; + + if (a == 4 && !data->has_beep) + return 0; + + return attr->mode; +} + +static struct attribute *it87_attributes_in[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, &sensor_dev_attr_in0_alarm.dev_attr.attr, - NULL -}, { + &sensor_dev_attr_in0_beep.dev_attr.attr, /* 4 */ + &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in1_min.dev_attr.attr, &sensor_dev_attr_in1_max.dev_attr.attr, &sensor_dev_attr_in1_alarm.dev_attr.attr, - NULL -}, { + &sensor_dev_attr_in1_beep.dev_attr.attr, /* 9 */ + &sensor_dev_attr_in2_input.dev_attr.attr, &sensor_dev_attr_in2_min.dev_attr.attr, &sensor_dev_attr_in2_max.dev_attr.attr, &sensor_dev_attr_in2_alarm.dev_attr.attr, - NULL -}, { + &sensor_dev_attr_in2_beep.dev_attr.attr, /* 14 */ + &sensor_dev_attr_in3_input.dev_attr.attr, &sensor_dev_attr_in3_min.dev_attr.attr, &sensor_dev_attr_in3_max.dev_attr.attr, &sensor_dev_attr_in3_alarm.dev_attr.attr, - NULL -}, { + &sensor_dev_attr_in3_beep.dev_attr.attr, /* 19 */ + &sensor_dev_attr_in4_input.dev_attr.attr, &sensor_dev_attr_in4_min.dev_attr.attr, &sensor_dev_attr_in4_max.dev_attr.attr, &sensor_dev_attr_in4_alarm.dev_attr.attr, - NULL -}, { + &sensor_dev_attr_in4_beep.dev_attr.attr, /* 24 */ + &sensor_dev_attr_in5_input.dev_attr.attr, &sensor_dev_attr_in5_min.dev_attr.attr, &sensor_dev_attr_in5_max.dev_attr.attr, &sensor_dev_attr_in5_alarm.dev_attr.attr, - NULL -}, { + &sensor_dev_attr_in5_beep.dev_attr.attr, /* 29 */ + &sensor_dev_attr_in6_input.dev_attr.attr, &sensor_dev_attr_in6_min.dev_attr.attr, &sensor_dev_attr_in6_max.dev_attr.attr, &sensor_dev_attr_in6_alarm.dev_attr.attr, - NULL -}, { + &sensor_dev_attr_in6_beep.dev_attr.attr, /* 34 */ + &sensor_dev_attr_in7_input.dev_attr.attr, &sensor_dev_attr_in7_min.dev_attr.attr, &sensor_dev_attr_in7_max.dev_attr.attr, &sensor_dev_attr_in7_alarm.dev_attr.attr, - NULL -}, { - &sensor_dev_attr_in8_input.dev_attr.attr, - NULL -}, { - &sensor_dev_attr_in9_input.dev_attr.attr, - NULL -} }; + &sensor_dev_attr_in7_beep.dev_attr.attr, /* 39 */ + + &sensor_dev_attr_in8_input.dev_attr.attr, /* 40 */ + + &sensor_dev_attr_in9_input.dev_attr.attr, /* 41 */ +}; -static const struct attribute_group it87_group_in[10] = { - { .attrs = it87_attributes_in[0] }, - { .attrs = it87_attributes_in[1] }, - { .attrs = it87_attributes_in[2] }, - { .attrs = it87_attributes_in[3] }, - { .attrs = it87_attributes_in[4] }, - { .attrs = it87_attributes_in[5] }, - { .attrs = it87_attributes_in[6] }, - { .attrs = it87_attributes_in[7] }, - { .attrs = it87_attributes_in[8] }, - { .attrs = it87_attributes_in[9] }, +static const struct attribute_group it87_group_in = { + .attrs = it87_attributes_in, + .is_visible = it87_in_is_visible, }; static struct attribute *it87_attributes_temp[3][6] = { @@ -1868,19 +1881,6 @@ static const struct attribute_group it87_group = { .attrs = it87_attributes, }; -static struct attribute *it87_attributes_in_beep[] = { - &sensor_dev_attr_in0_beep.dev_attr.attr, - &sensor_dev_attr_in1_beep.dev_attr.attr, - &sensor_dev_attr_in2_beep.dev_attr.attr, - &sensor_dev_attr_in3_beep.dev_attr.attr, - &sensor_dev_attr_in4_beep.dev_attr.attr, - &sensor_dev_attr_in5_beep.dev_attr.attr, - &sensor_dev_attr_in6_beep.dev_attr.attr, - &sensor_dev_attr_in7_beep.dev_attr.attr, - NULL, - NULL, -}; - static struct attribute *it87_attributes_temp_beep[] = { &sensor_dev_attr_temp1_beep.dev_attr.attr, &sensor_dev_attr_temp2_beep.dev_attr.attr, @@ -2435,14 +2435,8 @@ static void it87_remove_files(struct device *dev) int i; sysfs_remove_group(&dev->kobj, &it87_group); - for (i = 0; i < 10; i++) { - if (sio_data->skip_in & (1 << i)) - continue; - sysfs_remove_group(&dev->kobj, &it87_group_in[i]); - if (it87_attributes_in_beep[i]) - sysfs_remove_file(&dev->kobj, - it87_attributes_in_beep[i]); - } + sysfs_remove_group(&dev->kobj, &it87_group_in); + for (i = 0; i < 3; i++) { if (!(data->has_temp & (1 << i))) continue; @@ -2736,6 +2730,10 @@ static int it87_probe(struct platform_device *pdev) data->has_temp &= ~(1 << 2); } + data->has_in = 0x3ff & ~sio_data->skip_in; + + data->has_beep = !!sio_data->beep_pin; + /* Initialize the IT87 chip */ it87_init_device(pdev); @@ -2744,19 +2742,9 @@ static int it87_probe(struct platform_device *pdev) if (err) return err; - for (i = 0; i < 10; i++) { - if (sio_data->skip_in & (1 << i)) - continue; - err = sysfs_create_group(&dev->kobj, &it87_group_in[i]); - if (err) - goto error; - if (sio_data->beep_pin && it87_attributes_in_beep[i]) { - err = sysfs_create_file(&dev->kobj, - it87_attributes_in_beep[i]); - if (err) - goto error; - } - } + err = sysfs_create_group(&dev->kobj, &it87_group_in); + if (err) + goto error; for (i = 0; i < 3; i++) { if (!(data->has_temp & (1 << i))) -- cgit v1.2.3