diff options
Diffstat (limited to 'drivers/i2c/muxes/i2c-mux-gpio.c')
-rw-r--r-- | drivers/i2c/muxes/i2c-mux-gpio.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index 5a0ce0081dc..a764da777f0 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -16,7 +16,6 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/gpio.h> -#include <linux/of_i2c.h> #include <linux/of_gpio.h> struct gpiomux { @@ -67,7 +66,7 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, struct device_node *adapter_np, *child; struct i2c_adapter *adapter; unsigned *values, *gpios; - int i = 0; + int i = 0, ret; if (!np) return -ENODEV; @@ -80,7 +79,7 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, adapter = of_find_i2c_adapter_by_node(adapter_np); if (!adapter) { dev_err(&pdev->dev, "Cannot find parent bus\n"); - return -ENODEV; + return -EPROBE_DEFER; } mux->data.parent = i2c_adapter_id(adapter); put_device(&adapter->dev); @@ -117,8 +116,12 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, return -ENOMEM; } - for (i = 0; i < mux->data.n_gpios; i++) - gpios[i] = of_get_named_gpio(np, "mux-gpios", i); + for (i = 0; i < mux->data.n_gpios; i++) { + ret = of_get_named_gpio(np, "mux-gpios", i); + if (ret < 0) + return ret; + gpios[i] = ret; + } mux->data.gpios = gpios; @@ -148,12 +151,14 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) platform_set_drvdata(pdev, mux); - if (!pdev->dev.platform_data) { + if (!dev_get_platdata(&pdev->dev)) { ret = i2c_mux_gpio_probe_dt(mux, pdev); if (ret < 0) return ret; - } else - memcpy(&mux->data, pdev->dev.platform_data, sizeof(mux->data)); + } else { + memcpy(&mux->data, dev_get_platdata(&pdev->dev), + sizeof(mux->data)); + } /* * If a GPIO chip name is provided, the GPIO pin numbers provided are @@ -176,7 +181,7 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) if (!parent) { dev_err(&pdev->dev, "Parent adapter (%d) not found\n", mux->data.parent); - return -ENODEV; + return -EPROBE_DEFER; } mux->parent = parent; |