diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-07 13:39:22 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-07 13:39:22 -0700 |
commit | f678d6da749983791850876e3421e7c48a0a7127 (patch) | |
tree | 553f818ef8e73bf9d6b1e53bdf623240c1279ffb /drivers/w1/masters | |
parent | 2310673c3c12e4b7f8a31c41f67f701d24b0de86 (diff) | |
parent | aad14ad3cf3a63bd258b65e18d49c3eb8472d344 (diff) |
Merge tag 'char-misc-5.2-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc update part 2 from Greg KH:
"Here is the "real" big set of char/misc driver patches for 5.2-rc1
Loads of different driver subsystem stuff in here, all over the places:
- thunderbolt driver updates
- habanalabs driver updates
- nvmem driver updates
- extcon driver updates
- intel_th driver updates
- mei driver updates
- coresight driver updates
- soundwire driver cleanups and updates
- fastrpc driver updates
- other minor driver updates
- chardev minor fixups
Feels like this tree is getting to be a dumping ground of "small
driver subsystems" these days. Which is fine with me, if it makes
things easier for those subsystem maintainers.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.2-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
intel_th: msu: Add current window tracking
intel_th: msu: Add a sysfs attribute to trigger window switch
intel_th: msu: Correct the block wrap detection
intel_th: Add switch triggering support
intel_th: gth: Factor out trace start/stop
intel_th: msu: Factor out pipeline draining
intel_th: msu: Switch over to scatterlist
intel_th: msu: Replace open-coded list_{first,last,next}_entry variants
intel_th: Only report useful IRQs to subdevices
intel_th: msu: Start handling IRQs
intel_th: pci: Use MSI interrupt signalling
intel_th: Communicate IRQ via resource
intel_th: Add "rtit" source device
intel_th: Skip subdevices if their MMIO is missing
intel_th: Rework resource passing between glue layers and core
intel_th: SPDX-ify the documentation
intel_th: msu: Fix single mode with IOMMU
coresight: funnel: Support static funnel
dt-bindings: arm: coresight: Unify funnel DT binding
coresight: replicator: Add new device id for static replicator
...
Diffstat (limited to 'drivers/w1/masters')
-rw-r--r-- | drivers/w1/masters/ds2482.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/w1/masters/ds2482.c b/drivers/w1/masters/ds2482.c index 8b5e598ffdb3..8f2b25f1614c 100644 --- a/drivers/w1/masters/ds2482.c +++ b/drivers/w1/masters/ds2482.c @@ -37,6 +37,11 @@ module_param_named(active_pullup, ds2482_active_pullup, int, 0644); MODULE_PARM_DESC(active_pullup, "Active pullup (apply to all buses): " \ "0-disable, 1-enable (default)"); +/* extra configurations - e.g. 1WS */ +static int extra_config; +module_param(extra_config, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(extra_config, "Extra Configuration settings 1=APU,2=PPM,3=SPU,8=1WS"); + /** * The DS2482 registers - there are 3 registers that are addressed by a read * pointer. The read pointer is set by the last command executed. @@ -70,8 +75,6 @@ MODULE_PARM_DESC(active_pullup, "Active pullup (apply to all buses): " \ #define DS2482_REG_CFG_PPM 0x02 /* presence pulse masking */ #define DS2482_REG_CFG_APU 0x01 /* active pull-up */ -/* extra configurations - e.g. 1WS */ -static int extra_config; /** * Write and verify codes for the CHANNEL_SELECT command (DS2482-800 only). @@ -130,6 +133,8 @@ struct ds2482_data { */ static inline u8 ds2482_calculate_config(u8 conf) { + conf |= extra_config; + if (ds2482_active_pullup) conf |= DS2482_REG_CFG_APU; @@ -405,7 +410,7 @@ static u8 ds2482_w1_reset_bus(void *data) /* If the chip did reset since detect, re-config it */ if (err & DS2482_REG_STS_RST) ds2482_send_cmd_data(pdev, DS2482_CMD_WRITE_CONFIG, - ds2482_calculate_config(extra_config)); + ds2482_calculate_config(0x00)); } mutex_unlock(&pdev->access_lock); @@ -431,7 +436,8 @@ static u8 ds2482_w1_set_pullup(void *data, int delay) ds2482_wait_1wire_idle(pdev); /* note: it seems like both SPU and APU have to be set! */ retval = ds2482_send_cmd_data(pdev, DS2482_CMD_WRITE_CONFIG, - ds2482_calculate_config(extra_config|DS2482_REG_CFG_SPU|DS2482_REG_CFG_APU)); + ds2482_calculate_config(DS2482_REG_CFG_SPU | + DS2482_REG_CFG_APU)); ds2482_wait_1wire_idle(pdev); } @@ -484,7 +490,7 @@ static int ds2482_probe(struct i2c_client *client, /* Set all config items to 0 (off) */ ds2482_send_cmd_data(data, DS2482_CMD_WRITE_CONFIG, - ds2482_calculate_config(extra_config)); + ds2482_calculate_config(0x00)); mutex_init(&data->access_lock); @@ -559,7 +565,5 @@ module_i2c_driver(ds2482_driver); MODULE_AUTHOR("Ben Gardner <bgardner@wabtec.com>"); MODULE_DESCRIPTION("DS2482 driver"); -module_param(extra_config, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(extra_config, "Extra Configuration settings 1=APU,2=PPM,3=SPU,8=1WS"); MODULE_LICENSE("GPL"); |