Update the i2c uclass to support a live device tree.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v3: None Changes in v2: None
drivers/i2c/i2c-uclass.c | 28 +++++++++++++--------------- include/i2c.h | 3 +-- 2 files changed, 14 insertions(+), 17 deletions(-)
diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c index f3184c71d9..1397f34dda 100644 --- a/drivers/i2c/i2c-uclass.c +++ b/drivers/i2c/i2c-uclass.c @@ -7,7 +7,6 @@ #include <common.h> #include <dm.h> #include <errno.h> -#include <fdtdec.h> #include <i2c.h> #include <malloc.h> #include <dm/device-internal.h> @@ -467,18 +466,20 @@ int i2c_deblock(struct udevice *bus) }
#if CONFIG_IS_ENABLED(OF_CONTROL) -int i2c_chip_ofdata_to_platdata(const void *blob, int node, - struct dm_i2c_chip *chip) +int i2c_chip_ofdata_to_platdata(struct udevice *dev, struct dm_i2c_chip *chip) { - chip->offset_len = fdtdec_get_int(gd->fdt_blob, node, - "u-boot,i2c-offset-len", 1); + int addr; + + chip->offset_len = dev_read_u32_default(dev, "u-boot,i2c-offset-len", + 1); chip->flags = 0; - chip->chip_addr = fdtdec_get_int(gd->fdt_blob, node, "reg", -1); - if (chip->chip_addr == -1) { - debug("%s: I2C Node '%s' has no 'reg' property\n", __func__, - fdt_get_name(blob, node, NULL)); + addr = dev_read_u32_default(dev, "reg", -1); + if (addr == -1) { + debug("%s: I2C Node '%s' has no 'reg' property %s\n", __func__, + dev_read_name(dev), dev->name); return -EINVAL; } + chip->chip_addr = addr;
return 0; } @@ -489,8 +490,7 @@ static int i2c_post_probe(struct udevice *dev) #if CONFIG_IS_ENABLED(OF_CONTROL) struct dm_i2c_bus *i2c = dev_get_uclass_priv(dev);
- i2c->speed_hz = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), - "clock-frequency", 100000); + i2c->speed_hz = dev_read_u32_default(dev, "clock-frequency", 100000);
return dm_i2c_set_bus_speed(dev, i2c->speed_hz); #else @@ -503,11 +503,9 @@ static int i2c_child_post_bind(struct udevice *dev) #if CONFIG_IS_ENABLED(OF_CONTROL) struct dm_i2c_chip *plat = dev_get_parent_platdata(dev);
- if (dev_of_offset(dev) == -1) + if (!dev_of_valid(dev)) return 0; - - return i2c_chip_ofdata_to_platdata(gd->fdt_blob, dev_of_offset(dev), - plat); + return i2c_chip_ofdata_to_platdata(dev, plat); #else return 0; #endif diff --git a/include/i2c.h b/include/i2c.h index a88cc7cddf..d0950b5d01 100644 --- a/include/i2c.h +++ b/include/i2c.h @@ -525,8 +525,7 @@ int i2c_get_chip_for_busnum(int busnum, int chip_addr, uint offset_len, * @node: Node offset to read from * @spi: Place to put the decoded information */ -int i2c_chip_ofdata_to_platdata(const void *blob, int node, - struct dm_i2c_chip *chip); +int i2c_chip_ofdata_to_platdata(struct udevice *dev, struct dm_i2c_chip *chip);
/** * i2c_dump_msgs() - Dump a list of I2C messages