[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <558B984D.9040309@linaro.org>
Date: Thu, 25 Jun 2015 11:27:33 +0530
From: Vaibhav Hiremath <vaibhav.hiremath@...aro.org>
To: Krzysztof Kozlowski <k.kozlowski@...sung.com>
CC: linux-arm-kernel@...ts.infradead.org, Zhao Ye <zhaoy@...vell.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
robh+dt@...nel.org, lee.jones@...aro.org
Subject: Re: [PATCH-v3 2/3] mfd: 88pm800: Allow configuration of interrupt
clear method
On Thursday 25 June 2015 11:20 AM, Krzysztof Kozlowski wrote:
> On 25.06.2015 14:44, Vaibhav Hiremath wrote:
>>
>>
>> On Thursday 25 June 2015 11:02 AM, Krzysztof Kozlowski wrote:
>>> On 25.06.2015 14:26, Vaibhav Hiremath wrote:
>>>>
>>>>
>>>> On Thursday 25 June 2015 05:33 AM, Krzysztof Kozlowski wrote:
>>>>> 2015-06-24 18:21 GMT+09:00 Vaibhav Hiremath
>>>>> <vaibhav.hiremath@...aro.org>:
>>>>>> 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 <zhaoy@...vell.com>
>>>>>> Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@...aro.org>
>>>>>
>>>
<snip>
>>
>> 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@...ibhav-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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists