diff options
Diffstat (limited to 'target/linux/generic/patches-4.0/022-bcma-from-4.2.patch')
| -rw-r--r-- | target/linux/generic/patches-4.0/022-bcma-from-4.2.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.0/022-bcma-from-4.2.patch b/target/linux/generic/patches-4.0/022-bcma-from-4.2.patch new file mode 100644 index 0000000000..1a9f472a4a --- /dev/null +++ b/target/linux/generic/patches-4.0/022-bcma-from-4.2.patch @@ -0,0 +1,37 @@ +--- a/drivers/bcma/driver_gpio.c ++++ b/drivers/bcma/driver_gpio.c +@@ -226,6 +226,7 @@ int bcma_gpio_init(struct bcma_drv_cc *c + chip->of_node = cc->core->dev.of_node; + #endif + switch (bus->chipinfo.id) { ++ case BCMA_CHIP_ID_BCM4707: + case BCMA_CHIP_ID_BCM5357: + case BCMA_CHIP_ID_BCM53572: + chip->ngpio = 32; +@@ -235,16 +236,17 @@ int bcma_gpio_init(struct bcma_drv_cc *c + } + + /* +- * On MIPS we register GPIO devices (LEDs, buttons) using absolute GPIO +- * pin numbers. We don't have Device Tree there and we can't really use +- * relative (per chip) numbers. +- * So let's use predictable base for BCM47XX and "random" for all other. ++ * Register SoC GPIO devices with absolute GPIO pin base. ++ * On MIPS, we don't have Device Tree and we can't use relative (per chip) ++ * GPIO numbers. ++ * On some ARM devices, user space may want to access some system GPIO ++ * pins directly, which is easier to do with a predictable GPIO base. + */ +-#if IS_BUILTIN(CONFIG_BCM47XX) +- chip->base = bus->num * BCMA_GPIO_MAX_PINS; +-#else +- chip->base = -1; +-#endif ++ if (IS_BUILTIN(CONFIG_BCM47XX) || ++ cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC) ++ chip->base = bus->num * BCMA_GPIO_MAX_PINS; ++ else ++ chip->base = -1; + + err = bcma_gpio_irq_domain_init(cc); + if (err) |