From 728d04cc72855e23f6a9116e68911dcac5be4693 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 15 Mar 2021 17:25:30 +1300 Subject: sandbox: i2c: Support i2c emulation with of-platdata At present the i2c emulators require access to the devicetree, which is not possible (by design) with of-platdata. Add a way for drivers to record the of-platdata index of their emulator, so that we can still find the emulator. This allows i2c emulation to work with of-platdata. Signed-off-by: Simon Glass Signed-off-by: Simon Glass --- drivers/i2c/i2c-emul-uclass.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'drivers/i2c') diff --git a/drivers/i2c/i2c-emul-uclass.c b/drivers/i2c/i2c-emul-uclass.c index 9ef4651fa4..7917b63c55 100644 --- a/drivers/i2c/i2c-emul-uclass.c +++ b/drivers/i2c/i2c-emul-uclass.c @@ -31,14 +31,27 @@ struct udevice *i2c_emul_get_device(struct udevice *emul) return uc_plat->dev; } +void i2c_emul_set_idx(struct udevice *dev, int emul_idx) +{ + struct dm_i2c_chip *plat = dev_get_parent_plat(dev); + + plat->emul_idx = emul_idx; +} + int i2c_emul_find(struct udevice *dev, struct udevice **emulp) { struct i2c_emul_uc_plat *uc_plat; struct udevice *emul; int ret; - ret = uclass_find_device_by_phandle(UCLASS_I2C_EMUL, dev, - "sandbox,emul", &emul); + if (!CONFIG_IS_ENABLED(OF_PLATDATA)) { + ret = uclass_find_device_by_phandle(UCLASS_I2C_EMUL, dev, + "sandbox,emul", &emul); + } else { + struct dm_i2c_chip *plat = dev_get_parent_plat(dev); + + ret = device_get_by_ofplat_idx(plat->emul_idx, &emul); + } if (ret) { log_err("No emulators for device '%s'\n", dev->name); return ret; -- cgit v1.2.3