linux.git/drivers/base/regmap, branch v3.17-rc2 Linux kernel source tree regmap: Allow regmap_get_device() to be used by modules 2014-07-25T17:30:31+00:00 Mark Brown broonie@linaro.org 2014-07-25T17:30:31+00:00 fa2fbe4a981a70866d20cee62af0d89eb6b6027e Signed-off-by: Mark Brown <broonie@linaro.org> 
Signed-off-by: Mark Brown <broonie@linaro.org>
regmap: Add regmap_get_device 2014-07-25T17:29:28+00:00 Tuomas Tynkkynen ttynkkynen@nvidia.com 2014-07-21T15:38:47+00:00 8d7d3972a9ae962bbf8ce49c83f4a40082708f69 Add a new function regmap_get_device to obtain the underlying struct device from a regmap. Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org> 
Add a new function regmap_get_device to obtain the underlying struct
device from a regmap.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Merge remote-tracking branch 'regmap/topic/smbus' into regmap-next 2014-06-02T16:07:42+00:00 Mark Brown broonie@linaro.org 2014-06-02T16:07:42+00:00 ef98ae45e6b3ea17d3ed27cec9afdd7e46f916ae 






Merge remote-tracking branches 'regmap/topic/irq', 'regmap/topic/le', 'regmap/topic/mmio' and 'regmap/topic/rbtree' into regmap-next
2014-06-02T16:07:39+00:00

Mark Brown
broonie@linaro.org

2014-06-02T16:07:39+00:00

522168d178208ff821b9bc37ffcd2442b80f6e6d












regmap: mmio: Fix regmap_mmio_write for uneven counts
2014-05-26T15:56:02+00:00

Philipp Zabel
p.zabel@pengutronix.de

2014-05-16T14:25:34+00:00

2e804b7c72d4efd2318428a2c1e40fd0e173c487

Commit 932580409a9dacbf42215fa737bf06ae2c0aa624
"regmap: mmio: Add support for 1/2/8 bytes wide register address."
broke regmap_mmio_write for uneven counts, for example 32-bit register
addresses with no padding and 8-byte values (count = 5).
Fix this by allowing all counts large enough to include some value.
This check was BUG_ON(count < 4) before the last change.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>





Commit 932580409a9dacbf42215fa737bf06ae2c0aa624
"regmap: mmio: Add support for 1/2/8 bytes wide register address."
broke regmap_mmio_write for uneven counts, for example 32-bit register
addresses with no padding and 8-byte values (count = 5).
Fix this by allowing all counts large enough to include some value.
This check was BUG_ON(count < 4) before the last change.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>







regmap: irq: Fix possible ZERO_SIZE_PTR pointer dereferencing error.
2014-05-26T15:37:04+00:00

Xiubo Li
Li.Xiubo@freescale.com

2014-05-19T07:13:45+00:00

e12892070184ee782c207f09722a93d0236be955

Since we cannot make sure the 'chip->num_regs' will always be none zero
from the users, and then if 'chip->num_regs' equals to zero by mistake
or other reasons, the kzalloc() will return ZERO_SIZE_PTR, which equals
to ((void *)16).

So this patch fix this with just checking the 'chip->num_regs' before
calling kzalloc().

This also sorts the header files in alphabetical order at the same time.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>





Since we cannot make sure the 'chip->num_regs' will always be none zero
from the users, and then if 'chip->num_regs' equals to zero by mistake
or other reasons, the kzalloc() will return ZERO_SIZE_PTR, which equals
to ((void *)16).

So this patch fix this with just checking the 'chip->num_regs' before
calling kzalloc().

This also sorts the header files in alphabetical order at the same time.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>







regmap: Add missing initialization of this_page
2014-05-01T03:45:58+00:00

Geert Uytterhoeven
geert@linux-m68k.org

2014-04-22T10:47:29+00:00

b48d13988bee440e43a510ea8878f1f329cee189

drivers/base/regmap/regmap.c: In function ‘_regmap_range_multi_paged_reg_write’:
drivers/base/regmap/regmap.c:1665: warning: ‘this_page’ may be used uninitialized in this function

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>





drivers/base/regmap/regmap.c: In function ‘_regmap_range_multi_paged_reg_write’:
drivers/base/regmap/regmap.c:1665: warning: ‘this_page’ may be used uninitialized in this function

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>







regmap: Fix possible ZERO_SIZE_PTR pointer dereferencing error.
2014-05-01T03:33:57+00:00

Xiubo Li
Li.Xiubo@freescale.com

2014-04-30T09:31:08+00:00

f5727cd31283aa478f7f9396c6eb7b5aceebb869

Since we cannot make sure the 'len = pair_size * num_regs' will always
be none zero from the users, and then if 'num_regs' equals to zero by
mistake or other reasons, the kzalloc() will return ZERO_SIZE_PTR, which
equals to ((void *)16).

So this patch fix this with just doing the 'len' zero check before calling
kzalloc().

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>





Since we cannot make sure the 'len = pair_size * num_regs' will always
be none zero from the users, and then if 'num_regs' equals to zero by
mistake or other reasons, the kzalloc() will return ZERO_SIZE_PTR, which
equals to ((void *)16).

So this patch fix this with just doing the 'len' zero check before calling
kzalloc().

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>







regmap: i2c: fallback to SMBus if the adapter does not support standard I2C
2014-04-22T11:57:28+00:00

Boris BREZILLON
boris.brezillon@free-electrons.com

2014-04-21T20:56:59+00:00

b42261078a91db8a8307db42cad41a619077d1df

Some I2C adapters are only compatible with the SMBus protocol and do not
support standard I2C transfers.

Fallback to SMBus transfers if we encounter such kind of adapters.
The transfer type is chosen according to the val_bits field in the regmap
config.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>





Some I2C adapters are only compatible with the SMBus protocol and do not
support standard I2C transfers.

Fallback to SMBus transfers if we encounter such kind of adapters.
The transfer type is chosen according to the val_bits field in the regmap
config.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>







regmap: add reg_read/reg_write callbacks to regmap_bus struct
2014-04-18T15:07:22+00:00

Boris BREZILLON
boris.brezillon@free-electrons.com

2014-04-17T09:40:11+00:00

3ac170376f2c5123414e0267aa0f9cf218965e24

Some busses do not support sending/receiving multiple registers in one go.
Such kind of busses just unpack the registers that have been previously
packed by the regmap core or pack registers that will be later unpacked by
the core code.

Add reg_write and reg_read callbacks in order to optimize access through
this kind of busses.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>





Some busses do not support sending/receiving multiple registers in one go.
Such kind of busses just unpack the registers that have been previously
packed by the regmap core or pack registers that will be later unpacked by
the core code.

Add reg_write and reg_read callbacks in order to optimize access through
this kind of busses.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Mark Brown <broonie@linaro.org>