diff options
| author | Chris Packham <judge.packham@gmail.com> | 2017-09-29 10:53:36 +1300 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2017-10-11 06:17:22 +0200 |
| commit | 5bc90a8953a902152bd640322ffc8111dccbe3ab (patch) | |
| tree | dcb31609ff5744d36595d474bbcd64d1cfe33a89 | |
| parent | 45c9d96ae40b0c4292eb67d687f0bf698a0ce72b (diff) | |
| download | u-boot-5bc90a8953a902152bd640322ffc8111dccbe3ab.tar.gz | |
i2c: muxes: pca954x: look up width from chip_desc
Commit 8e6eda7cda6c ("drivers/i2c/muxes/pca954x: Add pca9547 I2C mux
support") introduced a chip_desc for the pca954x devices but failed to
update pca954x_ofdata_to_platdata() to be aware of it. Make
pca954x_ofdata_to_platdata() lookup the chip_desc to validate the device
width.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Marek Behun <marek.behun@nic.cz>
| -rw-r--r-- | drivers/i2c/muxes/pca954x.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/i2c/muxes/pca954x.c b/drivers/i2c/muxes/pca954x.c index 01ca1ff48d..2b70ff82bd 100644 --- a/drivers/i2c/muxes/pca954x.c +++ b/drivers/i2c/muxes/pca954x.c @@ -27,6 +27,7 @@ struct chip_desc { pca954x_ismux = 0, pca954x_isswi, } muxtype; + u32 width; }; struct pca954x_priv { @@ -39,14 +40,17 @@ static const struct chip_desc chips[] = { [PCA9544] = { .enable = 0x4, .muxtype = pca954x_ismux, + .width = 4, }, [PCA9547] = { .enable = 0x8, .muxtype = pca954x_ismux, + .width = 8, }, [PCA9548] = { .enable = 0x8, .muxtype = pca954x_isswi, + .width = 8, }, }; @@ -89,13 +93,14 @@ static const struct udevice_id pca954x_ids[] = { static int pca954x_ofdata_to_platdata(struct udevice *dev) { struct pca954x_priv *priv = dev_get_priv(dev); + const struct chip_desc *chip = &chips[dev_get_driver_data(dev)]; priv->addr = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), "reg", 0); if (!priv->addr) { debug("MUX not found\n"); return -ENODEV; } - priv->width = dev_get_driver_data(dev); + priv->width = chip->width; if (!priv->width) { debug("No I2C MUX width specified\n"); |