Linux - How to find the GPIO usage status ?

$cat /sys/kernel/debug/gpio

GPIOs 576-607, platform/qcom,smp2pgpio-ssr-smp2p-4-out.19, master-kernel:

GPIOs 608-639, platform/qcom,smp2pgpio-ssr-smp2p-4-in.18, slave-kernel:

GPIOs 640-671, platform/qcom,smp2pgpio-ssr-smp2p-1-out.13, master-kernel:

GPIOs 672-703, platform/qcom,smp2pgpio-ssr-smp2p-1-in.12, slave-kernel:

GPIOs 704-735, platform/qcom,smp2pgpio-smp2p-4-out.16, smp2p:

GPIOs 736-767, platform/qcom,smp2pgpio-smp2p-4-in.14, smp2p:

GPIOs 768-799, platform/qcom,smp2pgpio-smp2p-1-out.10, smp2p:

GPIOs 800-831, platform/qcom,smp2pgpio-smp2p-1-in.8, smp2p:

GPIOs 832-863, platform/qcom,smp2pgpio-smp2p-7-out.6, smp2p:

GPIOs 864-895, platform/qcom,smp2pgpio-smp2p-7-in.4, smp2p:

GPIOs 896-899, spmi/qpnp-pin-ffffffc03161cc00, pm8916-gpio:

 gpio-896 (qcom,hub-reset-gpio ) out hi

 gpio-897 (qcom,sw-sel-gpio    ) in  lo

GPIOs 900-901, spmi/qpnp-pin-ffffffc03161c800, pm8916-mpp:

GPIOs 902-1023, platform/1000000.pinctrl, msm_tlmm_gpio:

 gpio-922 (adv7533_hpd_irq_gpio) in  lo

 gpio-923 (led1                ) out lo

 gpio-927 (disp_rst_n          ) in  lo

 gpio-933 (adv7533_irq_gpio    ) in  lo

 gpio-934 (adv7533_switch_gpio ) out lo

 gpio-940 (7864900.sdhci cd    ) in  hi

 gpio-1009 (volume_up           ) in  hi

 gpio-1012 (USB_ID_GPIO         ) in  hi

 gpio-1022 (led2                ) out lo

reference : https://stackoverflow.com/questions/16033748/how-do-can-i-find-out-which-linux-driver-is-hogging-my-gpio