diff options
| author | Shubhrajyoti Datta <shubhrajyoti.datta@amd.com> | 2026-05-12 11:38:49 +0530 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> | 2026-05-13 09:28:43 +0200 |
| commit | eeb1d6dfd89344b17afe845d4839b79e37fdd547 (patch) | |
| tree | 97bdb71a6ac321906099f9bb728627cae15c4fc8 | |
| parent | 18409d06b4a002cb8550ad7c20273bedc77851df (diff) | |
gpio: zynq: Add eio gpio support
Add support for the EIO GPIO controller found on
xa2ve3288 silicon.
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 <shubhrajyoti.datta@amd.com>
Link: https://patch.msgid.link/20260512060917.2096456-4-shubhrajyoti.datta@amd.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
| -rw-r--r-- | drivers/gpio/gpio-zynq.c | 12 |
1 files changed, 12 insertions, 0 deletions
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); |