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The struct counter_synapse actions_list member expects a const enum
counter_synapse_action array. This patch adds the const qualifier to the
mchp_tc_synapse_actions to match actions_list.
Cc: Kamel Bouhara <kamel.bouhara@bootlin.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/165f9682ce308a60a477aaa56fdae7bc949dc218.1623201081.git.vilhelm.gray@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The struct counter_count functions_list member expects a const enum
counter_count_function array. This patch adds the const qualifier to the
mchp_tc_count_functions to match functions_list.
Cc: Kamel Bouhara <kamel.bouhara@bootlin.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/74cb91ab7b459563762ec28633cd8808093aa2ad.1623201081.git.vilhelm.gray@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The ATMEL_TC_ETRGEDG_* defines are not masks but rather possible values
for CMR. This patch fixes the action_get() callback to properly check
for these values rather than mask them.
Fixes: 106b104137fd ("counter: Add microchip TCB capture counter")
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201114232805.253108-1-vilhelm.gray@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The only usage of mchp_tc_ops is to assign its address to the ops field
in the counter_device struct which is a const pointer. Make it const to
allow the compiler to put it in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20200922201941.41328-1-rikard.falkeborn@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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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 <dan.carpenter@oracle.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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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 <kamel.bouhara@bootlin.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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