diff options
| author | Simon Glass <sjg@chromium.org> | 2017-09-17 22:54:53 (GMT) |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2017-10-09 02:41:09 (GMT) |
| commit | 7c84319af9c76084f50f3f2b97545bfa05f3971d (patch) | |
| tree | b4bad5c9afc2ca9dbd59778e306e11b4a34786c2 /drivers/gpio | |
| parent | 4d686041895a8fd419bbc3842856239c6298d1f2 (diff) | |
| download | u-boot-7c84319af9c76084f50f3f2b97545bfa05f3971d.tar.xz | |
dm: gpio: Correct use of -ENODEV in drivers
In U-Boot -ENODEV means that there is no device. When there is a problem
with the device, drivers should return an error like -ENXIO or -EREMOTEIO.
When the device tree properties cannot be read correct , they should
return -EINVAL.
Update various GPIO drivers to follow this rule, to help with consistency
for future driver writers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Adam Ford <aford173@gmail.com>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/adi_gpio2.c | 2 | ||||
| -rw-r--r-- | drivers/gpio/atmel_pio4.c | 12 | ||||
| -rw-r--r-- | drivers/gpio/imx_rgpio2p.c | 2 | ||||
| -rw-r--r-- | drivers/gpio/mxc_gpio.c | 2 | ||||
| -rw-r--r-- | drivers/gpio/omap_gpio.c | 2 | ||||
| -rw-r--r-- | drivers/gpio/tegra186_gpio.c | 2 |
6 files changed, 11 insertions, 11 deletions
diff --git a/drivers/gpio/adi_gpio2.c b/drivers/gpio/adi_gpio2.c index 4db08a3..1012f2d 100644 --- a/drivers/gpio/adi_gpio2.c +++ b/drivers/gpio/adi_gpio2.c @@ -138,7 +138,7 @@ int peripheral_request(unsigned short per, const char *label) return 0; if (!(per & P_DEFINED)) - return -ENODEV; + return -EINVAL; BUG_ON(ident >= MAX_RESOURCES); diff --git a/drivers/gpio/atmel_pio4.c b/drivers/gpio/atmel_pio4.c index f368946..30bc429 100644 --- a/drivers/gpio/atmel_pio4.c +++ b/drivers/gpio/atmel_pio4.c @@ -50,11 +50,11 @@ static int atmel_pio4_config_io_func(u32 port, u32 pin, u32 reg, mask; if (pin >= ATMEL_PIO_NPINS_PER_BANK) - return -ENODEV; + return -EINVAL; port_base = atmel_pio4_port_base(port); if (!port_base) - return -ENODEV; + return -EINVAL; mask = 1 << pin; reg = func; @@ -128,11 +128,11 @@ int atmel_pio4_set_pio_output(u32 port, u32 pin, u32 value) u32 reg, mask; if (pin >= ATMEL_PIO_NPINS_PER_BANK) - return -ENODEV; + return -EINVAL; port_base = atmel_pio4_port_base(port); if (!port_base) - return -ENODEV; + return -EINVAL; mask = 0x01 << pin; reg = ATMEL_PIO_CFGR_FUNC_GPIO | ATMEL_PIO_DIR_MASK; @@ -154,11 +154,11 @@ int atmel_pio4_get_pio_input(u32 port, u32 pin) u32 reg, mask; if (pin >= ATMEL_PIO_NPINS_PER_BANK) - return -ENODEV; + return -EINVAL; port_base = atmel_pio4_port_base(port); if (!port_base) - return -ENODEV; + return -EINVAL; mask = 0x01 << pin; reg = ATMEL_PIO_CFGR_FUNC_GPIO; diff --git a/drivers/gpio/imx_rgpio2p.c b/drivers/gpio/imx_rgpio2p.c index e60e9d2..7825714 100644 --- a/drivers/gpio/imx_rgpio2p.c +++ b/drivers/gpio/imx_rgpio2p.c @@ -168,7 +168,7 @@ static int imx_rgpio2p_bind(struct udevice *dev) addr = devfdt_get_addr_index(dev, 1); if (addr == FDT_ADDR_T_NONE) - return -ENODEV; + return -EINVAL; /* * TODO: diff --git a/drivers/gpio/mxc_gpio.c b/drivers/gpio/mxc_gpio.c index 0c42bd6..c480eba 100644 --- a/drivers/gpio/mxc_gpio.c +++ b/drivers/gpio/mxc_gpio.c @@ -304,7 +304,7 @@ static int mxc_gpio_bind(struct udevice *dev) addr = devfdt_get_addr(dev); if (addr == FDT_ADDR_T_NONE) - return -ENODEV; + return -EINVAL; /* * TODO: diff --git a/drivers/gpio/omap_gpio.c b/drivers/gpio/omap_gpio.c index 1ab12f3..7243100 100644 --- a/drivers/gpio/omap_gpio.c +++ b/drivers/gpio/omap_gpio.c @@ -307,7 +307,7 @@ static int omap_gpio_bind(struct udevice *dev) base_addr = devfdt_get_addr(dev); if (base_addr == FDT_ADDR_T_NONE) - return -ENODEV; + return -EINVAL; /* * TODO: diff --git a/drivers/gpio/tegra186_gpio.c b/drivers/gpio/tegra186_gpio.c index c5a7e13..deb59e8 100644 --- a/drivers/gpio/tegra186_gpio.c +++ b/drivers/gpio/tegra186_gpio.c @@ -181,7 +181,7 @@ static int tegra186_gpio_bind(struct udevice *parent) regs = (uint32_t *)devfdt_get_addr_name(parent, "gpio"); if (regs == (uint32_t *)FDT_ADDR_T_NONE) - return -ENODEV; + return -EINVAL; for (port = 0; port < ctlr_data->port_count; port++) { struct tegra186_gpio_platdata *plat; |