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| author | Ingo Molnar <mingo@kernel.org> | 2012-03-26 17:18:44 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-03-26 17:19:03 +0200 |
| commit | 7fd52392c56361a40f0c630a82b36b95ca31eac6 (patch) | |
| tree | 14091de24c6b28ea4cae9826f98aeedb7be091f5 /drivers/w1/slaves/w1_bq27000.c | |
| parent | perf: Move mmap page data_head offset assertion out of header (diff) | |
| parent | Merge tag 'stable/for-linus-3.4-tag-two' of git://git.kernel.org/pub/scm/linu... (diff) | |
| download | linux-7fd52392c56361a40f0c630a82b36b95ca31eac6.tar.xz linux-7fd52392c56361a40f0c630a82b36b95ca31eac6.zip | |
Merge branch 'linus' into perf/urgent
Merge reason: we need to fix a non-trivial merge conflict.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/w1/slaves/w1_bq27000.c')
| -rw-r--r-- | drivers/w1/slaves/w1_bq27000.c | 36 |
1 files changed, 14 insertions, 22 deletions
diff --git a/drivers/w1/slaves/w1_bq27000.c b/drivers/w1/slaves/w1_bq27000.c index 8f4c91f6c680..52ad812fa1e7 100644 --- a/drivers/w1/slaves/w1_bq27000.c +++ b/drivers/w1/slaves/w1_bq27000.c @@ -15,6 +15,7 @@ #include <linux/types.h> #include <linux/platform_device.h> #include <linux/mutex.h> +#include <linux/power/bq27x00_battery.h> #include "../w1.h" #include "../w1_int.h" @@ -25,46 +26,37 @@ static int F_ID; -void w1_bq27000_write(struct device *dev, u8 buf, u8 reg) -{ - struct w1_slave *sl = container_of(dev, struct w1_slave, dev); - - if (!dev) { - pr_info("Could not obtain slave dev ptr\n"); - return; - } - - w1_write_8(sl->master, HDQ_CMD_WRITE | reg); - w1_write_8(sl->master, buf); -} -EXPORT_SYMBOL(w1_bq27000_write); - -int w1_bq27000_read(struct device *dev, u8 reg) +static int w1_bq27000_read(struct device *dev, unsigned int reg) { u8 val; - struct w1_slave *sl = container_of(dev, struct w1_slave, dev); - - if (!dev) - return 0; + struct w1_slave *sl = container_of(dev->parent, struct w1_slave, dev); + mutex_lock(&sl->master->mutex); w1_write_8(sl->master, HDQ_CMD_READ | reg); val = w1_read_8(sl->master); + mutex_unlock(&sl->master->mutex); return val; } -EXPORT_SYMBOL(w1_bq27000_read); + +static struct bq27000_platform_data bq27000_battery_info = { + .read = w1_bq27000_read, + .name = "bq27000-battery", +}; static int w1_bq27000_add_slave(struct w1_slave *sl) { int ret; - int id = 1; struct platform_device *pdev; - pdev = platform_device_alloc("bq27000-battery", id); + pdev = platform_device_alloc("bq27000-battery", -1); if (!pdev) { ret = -ENOMEM; return ret; } + ret = platform_device_add_data(pdev, + &bq27000_battery_info, + sizeof(bq27000_battery_info)); pdev->dev.parent = &sl->dev; ret = platform_device_add(pdev); |