linux kernel - What is the difference between using gpio_tlmm_config and gpio_request + gpio_direction_input/output? -

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please explain difference in usage of 1.gpio_tlmm_config , 2.gpio_request + gpio_direction_input/gpio_direction_output.

gpio_tlmm_config -"history"
gpio_request - "static configurations
gpio_direction_input - "using gpios"
gpio_direction_output -"using gpios"

gpio_tlmm_config first-generation api gpio configuration & multiplexing on msm while gpio_request request carries implicit msm_gpiomux_get. gpio_direction_input & gpio_direction_output issue these calls task context.


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