Messages in this thread Patch in this message | | | From | Laxman Dewangan <> | Subject | [PATCH] mfd: palmas: initialise client->of_node for dummy created client | Date | Tue, 19 Mar 2013 14:28:20 +0530 |
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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> --- drivers/mfd/palmas.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c index 73bf76d..a3f2836 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]); -- 1.7.1.1
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