Some Broadcom boards have more GPIOs available. For example Linksys
E3200 home router is based on SoC id 0x5357, package 0x0A and uses GPIO
23 to reset internal USB WiFi (gpio23=wombo_reset).
---
drivers/bcma/driver_gpio.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/bcma/driver_gpio.c b/drivers/bcma/driver_gpio.c
index 25f9887..d7f81ad 100644
--- a/drivers/bcma/driver_gpio.c
+++ b/drivers/bcma/driver_gpio.c
@@ -218,7 +218,14 @@ int bcma_gpio_init(struct bcma_drv_cc *cc)
#if IS_BUILTIN(CONFIG_BCMA_HOST_SOC)
chip->to_irq = bcma_gpio_to_irq;
#endif
- chip->ngpio = 16;
+ switch (cc->core->bus->chipinfo.id) {
+ case BCMA_CHIP_ID_BCM5357:
+ chip->ngpio = 32;
+ break;
+ default:
+ chip->ngpio = 16;
+ }
+
/* There is just one SoC in one device and its GPIO addresses should be
* deterministic to address them more easily. The other buses could get
* a random base number. */
--
1.8.4.5
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