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authorLaxman Dewangan <ldewangan@nvidia.com>2013-03-19 12:58:20 +0400
committerSamuel Ortiz <sameo@linux.intel.com>2013-04-08 20:13:20 +0400
commitc4fbec3c6b8d61366ce377cebd3b25ce6c41a0b0 (patch)
treed55f1e220778a54711cf7f074e6cf20256310211 /drivers/mfd/palmas.c
parent36c772e31fa72006e80d12d1a94db2a326ba00a5 (diff)
downloadlinux-c4fbec3c6b8d61366ce377cebd3b25ce6c41a0b0.tar.xz
mfd: palmas: Initialise client->of_node for dummy created client
Palmas device have three different i2c addresses. The device creates the two new dummy i2c clients for accessing the register by using primary client adapter. This new dummy i2c client have their of_node as NULL. The dummy i2c client is used for registering interrupt and on this, it creates irq domain handle. This created irq domain handle has their of_node as NULL. Now when any child of this device is registered through the DT as follows: palmas: tps65913@58 { :::::::::::::::::: #interrupt-cells = <2>; interrupt-controller; palmas_rtc { compatible = "ti,palmas-rtc"; interrupt-parent = <&palmas>; interrupts = <8 0>; }; ::::::::::;;; }; And child driver (palam-rtc in this case) get their irq number as irq = platform_get_irq(pdev, 0); The returned irq number is error in this case. The reason is that the created irq_domain handle for the palmas interrupt does not have valid node and so matching of node fails with palmas node. Hence initialising the newly dummy created client->of_node with the primary clients of_node so that irq_domain handle have proper of_node for matching. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/palmas.c')
-rw-r--r--drivers/mfd/palmas.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index c01b69a5a4ee..53e9fe638d32 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -349,6 +349,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
ret = -ENOMEM;
goto err;
}
+ palmas->i2c_clients[i]->dev.of_node = of_node_get(node);
}
palmas->regmap[i] = devm_regmap_init_i2c(palmas->i2c_clients[i],
&palmas_regmap_config[i]);