linux/drivers/counter, branch v5.9

counter: microchip-tcb-capture: check the correct variable

2020-08-22T10:38:42Z

This should be testing "regmap" instead of "priv->regmap". The "priv->regmap" variable is always zero so it's not an error pointer. Fixes: 106b104137fd ("counter: Add microchip TCB capture counter") Signed-off-by: Dan Carpenter Signed-off-by: Jonathan Cameron

Merge branch 'ib-5.8-tcb' into HEAD

2020-07-22T13:37:23Z

Series needed as base for a clocksource tree hence immutable branch

counter: Add microchip TCB capture counter

2020-07-20T12:04:40Z

This drivers allows to use the capture mode of the Timer Counter Block hardware block available in Microchip SoCs through the counter subsystem. Two functions of the counter are supported for the moment: period capture and quadrature decoder. The latter is only supported by the SAMA5 series of SoCs. For the period capture mode a basic setup has been chosen that will reset the counter each time the period is actually reached. Of course the device offers much more possibilities. For quadrature mode, both channel 0 and 1 must be configured even if we only capture the position (no revolution/rotation). Signed-off-by: Kamel Bouhara Signed-off-by: Jonathan Cameron

Merge 5.8-rc6 into staging-next

2020-07-20T07:37:31Z

We need the staging fixes in here, and it resolves a merge issue with an iio driver. Signed-off-by: Greg Kroah-Hartman

counter: 104-quad-8: Add lock guards - filter clock prescaler

2020-06-14T13:46:52Z

Add lock protection from race conditions to the 104-quad-8 counter driver for filter clock prescaler code changes. Mutex calls used for protection. Signed-off-by: Syed Nayyar Waris Fixes: de65d0556343 ("counter: 104-quad-8: Support Filter Clock Prescaler") Signed-off-by: Jonathan Cameron

counter: 104-quad-8: Add lock guards - differential encoder

2020-06-14T13:44:32Z

Add lock protection from race conditions to 104-quad-8 counter driver for differential encoder status code changes. Mutex lock calls used for protection. Signed-off-by: Syed Nayyar Waris Fixes: 954ab5cc5f3e ("counter: 104-quad-8: Support Differential Encoder Cable Status") Signed-off-by: Jonathan Cameron

iio: remove explicit IIO device parent assignment

2020-06-14T10:49:59Z

This patch applies the semantic patch: @@ expression I, P, SP; @@ I = devm_iio_device_alloc(P, SP); ... - I->dev.parent = P; It updates 302 files and does 307 deletions. This semantic patch also removes some comments like '/* Establish that the iio_dev is a child of the i2c device */' But this is is only done in case where the block is left empty. The patch does not seem to cover all cases. It looks like in some cases a different variable is used in some cases to assign the parent, but it points to the same reference. In other cases, the block covered by ... may be just too big to be covered by the semantic patch. However, this looks pretty good as well, as it does cover a big bulk of the drivers that should remove the parent assignment. Signed-off-by: Alexandru Ardelean Signed-off-by: Jonathan Cameron

counter: 104-quad-8: Add lock guards - generic interface

2020-04-19T16:50:00Z

Add lock protection from race conditions to 104-quad-8 counter driver generic interface code changes. Mutex calls used for protection. Fixes: f1d8a071d45b ("counter: 104-quad-8: Add Generic Counter interface support") Signed-off-by: Syed Nayyar Waris Signed-off-by: William Breathitt Gray Signed-off-by: Jonathan Cameron

counter: 104-quad-8: Support Differential Encoder Cable Status

2020-03-08T17:28:53Z

The ACCES 104-QUAD-8 series provides status information about the connection state of the differential encoder cable inputs. This patch implements support to expose such information from these devices. Signed-off-by: William Breathitt Gray Signed-off-by: Jonathan Cameron

counter: 104-quad-8: Support Filter Clock Prescaler

2020-03-08T17:28:52Z

The ACCES 104-QUAD-8 series does active filtering on the quadrature input signals via the PC/104 bus clock (OSC 14.318 MHz). This patch exposes the filter clock prescaler available on each channel. Signed-off-by: William Breathitt Gray Signed-off-by: Jonathan Cameron