mirror of https://gitee.com/openkylin/linux.git
f1fb64b04b
The behaviour, by default, to not deselect after each transfer is unsafe when there is a device with an address that conflicts with another device on another mux on the same parent bus, and it may not be convenient to use devicetree to set the deselect mux, e.g. when running on x86_64 when ACPI is used to discover most of the device hierarchy. Therefore, provide the ability to set the idle state behaviour using a new sysfs file, idle_state as a complement to the method of instantiating the device via sysfs. The possible behaviours are disconnect, i.e. to deselect all channels from the mux, as-is (the default), i.e. leave the last channel selected, and set a predetermined channel. The current behaviour of leaving the channel as-is after each transaction is preserved. Signed-off-by: Robert Shearman <robert.shearman@att.com> Signed-off-by: Peter Rosin <peda@axentia.se> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| i2c-arb-gpio-challenge.c | ||
| i2c-demux-pinctrl.c | ||
| i2c-mux-gpio.c | ||
| i2c-mux-gpmux.c | ||
| i2c-mux-ltc4306.c | ||
| i2c-mux-mlxcpld.c | ||
| i2c-mux-pca954x.c | ||
| i2c-mux-pca9541.c | ||
| i2c-mux-pinctrl.c | ||
| i2c-mux-reg.c | ||