diff options
| author | Moritz Fischer <moritz.fischer@ettus.com> | 2016-09-27 15:42:07 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-10-08 09:33:36 -0400 |
| commit | 6d1a718fdffc92e5d1622d6892384328f5f73d03 (patch) | |
| tree | 61ef78f15d2100449ea0e79ba2c52aca92fa30a7 /drivers/i2c/cros_ec_tunnel.c | |
| parent | 1053a769fb14ff6824977a42a74a11bc8522a418 (diff) | |
cros_ec: Honor the google,remote-bus dt property
Boards where ECs that use a I2C port != 0 specify this in the
devicetree file via the google,remote-bus property.
Previously this was ignored and hardcoded to port 0.
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Heiko Schocher <hs@denx.de>
Cc: u-boot@lists.denx.de
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/i2c/cros_ec_tunnel.c')
| -rw-r--r-- | drivers/i2c/cros_ec_tunnel.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/i2c/cros_ec_tunnel.c b/drivers/i2c/cros_ec_tunnel.c index e2c6e44795..9cf8e7dec0 100644 --- a/drivers/i2c/cros_ec_tunnel.c +++ b/drivers/i2c/cros_ec_tunnel.c @@ -11,6 +11,12 @@ #include <errno.h> #include <i2c.h> +DECLARE_GLOBAL_DATA_PTR; + +struct cros_ec_i2c_bus { + int remote_bus; +}; + static int cros_ec_i2c_set_bus_speed(struct udevice *dev, unsigned int speed) { return 0; @@ -19,7 +25,21 @@ static int cros_ec_i2c_set_bus_speed(struct udevice *dev, unsigned int speed) static int cros_ec_i2c_xfer(struct udevice *dev, struct i2c_msg *msg, int nmsgs) { - return cros_ec_i2c_tunnel(dev->parent, msg, nmsgs); + struct cros_ec_i2c_bus *i2c_bus = dev_get_priv(dev); + + return cros_ec_i2c_tunnel(dev->parent, i2c_bus->remote_bus, msg, nmsgs); +} + +static int cros_ec_i2c_ofdata_to_platdata(struct udevice *dev) +{ + struct cros_ec_i2c_bus *i2c_bus = dev_get_priv(dev); + const void *blob = gd->fdt_blob; + int node = dev->of_offset; + + i2c_bus->remote_bus = fdtdec_get_uint(blob, node, "google,remote-bus", + 0); + + return 0; } static const struct dm_i2c_ops cros_ec_i2c_ops = { @@ -36,5 +56,7 @@ U_BOOT_DRIVER(cros_ec_tunnel) = { .name = "cros_ec_tunnel", .id = UCLASS_I2C, .of_match = cros_ec_i2c_ids, + .ofdata_to_platdata = cros_ec_i2c_ofdata_to_platdata, + .priv_auto_alloc_size = sizeof(struct cros_ec_i2c_bus), .ops = &cros_ec_i2c_ops, }; |