Re: [PATCH-v3 2/3] mfd: 88pm800: Allow configuration of interrupt clear method
From: Vaibhav Hiremath <hidden>
Date: 2015-06-25 05:57:49
Also in:
linux-arm-kernel, lkml
Subsystem:
multifunction devices (mfd), the rest · Maintainers:
Lee Jones, Linus Torvalds
On Thursday 25 June 2015 11:20 AM, Krzysztof Kozlowski wrote:
On 25.06.2015 14:44, Vaibhav Hiremath wrote:quoted
On Thursday 25 June 2015 11:02 AM, Krzysztof Kozlowski wrote:quoted
On 25.06.2015 14:26, Vaibhav Hiremath wrote:quoted
On Thursday 25 June 2015 05:33 AM, Krzysztof Kozlowski wrote:quoted
2015-06-24 18:21 GMT+09:00 Vaibhav Hiremath [off-list ref]:quoted
As per the spec, bit 1 (INT_CLEAR_MODE) of reg addr 0xe (page 0) controls the method of clearing interrupt status of 88pm800 family of devices; 0: clear on read 1: clear on write This patch allows to configure this field, through DT. Also, as suggested by "Lee Jones" renaming DT property and variable field to appropriate name. Signed-off-by: Zhao Ye <redacted> Signed-off-by: Vaibhav Hiremath <redacted>
<snip>
quoted
Yes, Fair enough... I see very little value in runtime configuration, why not just do it only way (either read or write)? I would prefer to just set it by default (during init), to clear irq on write.Hard-coding a default value, if board files are not present, looks OK to me.
This is how it will look, I will also update the binding information with this. hvaibhav@hvaibhav-ThinkPad-T440p:~/projects/mainline/linux$ git diff --cached
diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c
index 0a417ac..e415a06 100644
--- a/drivers/mfd/88pm800.c
+++ b/drivers/mfd/88pm800.c@@ -645,9 +645,8 @@ static int pm800_probe(struct i2c_client *client, dev_err(&client->dev, "failed to allocaate
memory\n");
return -ENOMEM;
}
-
- pdata->irq_clr_on_wr = of_property_read_bool(np,
- "marvell,irq-clr-on-write");
+ /* Setting irq clear method on write */
+ pdata->irq_clr_on_wr = true;
}
ret = pm80x_init(client);
Thanks,
Vaibhav
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