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authorJulien Panis <jpanis@baylibre.com>2022-09-27 18:53:45 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-09-30 14:32:35 +0200
commit4e2f42aa00b67605938173a61d07a44fe13bad68 (patch)
treeb45506382c44e6776baac18b2c797126b45245ae /drivers/counter/Kconfig
parent5a47aed0d651490ad0d6f9dbc98bc6dfc71de787 (diff)
counter: ti-ecap-capture: capture driver support for ECAP
ECAP hardware on TI AM62x SoC supports capture feature. It can be used to timestamp events (falling/rising edges) detected on input signal. This commit adds capture driver support for ECAP hardware on AM62x SoC. In the ECAP hardware, capture pin can also be configured to be in PWM mode. Current implementation only supports capture operating mode. Hardware also supports timebase sync between multiple instances, but this driver supports simple independent capture functionality. Signed-off-by: Julien Panis <jpanis@baylibre.com> Link: https://lore.kernel.org/r/20220923142437.271328-4-jpanis@baylibre.com/ Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Link: https://lore.kernel.org/r/25644ce1f2fd15d116977770ede20e024f658513.1664318353.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/counter/Kconfig')
-rw-r--r--drivers/counter/Kconfig15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/counter/Kconfig b/drivers/counter/Kconfig
index 5edd155f1911..d388bf26f4dc 100644
--- a/drivers/counter/Kconfig
+++ b/drivers/counter/Kconfig
@@ -101,4 +101,19 @@ config INTEL_QEP
To compile this driver as a module, choose M here: the module
will be called intel-qep.
+config TI_ECAP_CAPTURE
+ tristate "TI eCAP capture driver"
+ depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
+ depends on HAS_IOMEM
+ select REGMAP_MMIO
+ help
+ Select this option to enable the Texas Instruments Enhanced Capture
+ (eCAP) driver in input mode.
+
+ It can be used to timestamp events (falling/rising edges) detected
+ on ECAP input signal.
+
+ To compile this driver as a module, choose M here: the module
+ will be called ti-ecap-capture.
+
endif # COUNTER