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The EIO GPIO block provides access to multiplexed I/O pins exposed through the EIO interface. Only bank 0 and bank 1 are connected to external MIO pins, with 26 GPIOs per bank (52 GPIOs total). This change extends the Zynq GPIO driver to support the EIO GPIO variant. Signed-off-by: Shubhrajyoti Datta --- (no changes since v1) drivers/gpio/gpio-zynq.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c index 571e366624d2..8118ae3412c2 100644 --- a/drivers/gpio/gpio-zynq.c +++ b/drivers/gpio/gpio-zynq.c @@ -25,6 +25,7 @@ #define VERSAL_GPIO_MAX_BANK 4 #define PMC_GPIO_MAX_BANK 5 #define VERSAL_UNUSED_BANKS 2 +#define EIO_GPIO_MAX_BANK 2 #define ZYNQ_GPIO_BANK0_NGPIO 32 #define ZYNQ_GPIO_BANK1_NGPIO 22 @@ -818,6 +819,16 @@ static const struct dev_pm_ops zynq_gpio_dev_pm_ops = { RUNTIME_PM_OPS(zynq_gpio_runtime_suspend, zynq_gpio_runtime_resume, NULL) }; +static const struct zynq_platform_data eio_gpio_def = { + .label = "eio_gpio", + .ngpio = 52, + .max_bank = EIO_GPIO_MAX_BANK, + .bank_min[0] = 0, + .bank_max[0] = 25, /* 0 to 25 are connected to MIOs (26 pins) */ + .bank_min[1] = 26, + .bank_max[1] = 51, /* Bank 1 are connected to MIOs (26 pins) */ +}; + static const struct zynq_platform_data versal_gpio_def = { .label = "versal_gpio", .quirks = GPIO_QUIRK_VERSAL, @@ -882,6 +893,7 @@ static const struct of_device_id zynq_gpio_of_match[] = { { .compatible = "xlnx,zynqmp-gpio-1.0", .data = &zynqmp_gpio_def }, { .compatible = "xlnx,versal-gpio-1.0", .data = &versal_gpio_def }, { .compatible = "xlnx,pmc-gpio-1.0", .data = &pmc_gpio_def }, + { .compatible = "xlnx,eio-gpio-1.0", .data = &eio_gpio_def }, { /* end of table */ } }; MODULE_DEVICE_TABLE(of, zynq_gpio_of_match); -- 2.34.1