On 28-12-2016 16:41, Luis Oliveira wrote:
> On 28-Dec-16 16:31, Andy Shevchenko wrote:
>> On Wed, 2016-12-28 at 15:53 +0000, Luis Oliveira wrote:
>>> On 28-Dec-16 15:44, Andy Shevchenko wrote:
>>>> On Wed, 2016-12-28 at 14:43 +0000, Luis Oliveira wrote:
>>>>> - Slave mode selected in platform module (devicetree support only)
>>>>> - Check for ACPI - not supported in SLAVE mode:
>>>>> - Changed the ifndef style to the use of ACPI_HANDLE that
>>>>> returns
>>>>> NULL
>>>>> if the device was not enumerated from ACPI namespace.
>>>>
>>>> I'm not sure what is wrong with ACPI?
>>>
>>> I dont have a way to test it. Just that.
>>
>> Okay, can you provide an excerpt to see how it will look like in DTS?
>
> Yes, it looks like this now:
>
> i2c@0x2000 {
> compatible = "snps,designware-i2c";
> #address-cells = <1>;
> #size-cells = <0>;
> reg = <0x2000 0x100>;
> clock-frequency = <400000>;
> clocks = <&i2cclk>;
> interrupts = <0>;
>
> eeprom@64 {
> compatible = "linux,slave-24c02";
> reg = <0x40000064>;
> };
> };
Probably this can be included as example in the device tree binding document.
>>
>>>>> - dev->functionality = I2C_FUNC_10BIT_ADDR |
>>>>> DW_IC_DEFAULT_FUNCTIONALITY;
>>>>> -
>>>>> - i2c_dw_configure_master(pdev);
>>>>> + if (ACPI_HANDLE(&pdev->dev) == NULL) {
>>>>
>>>> I don't think you need this at all.
>>>
>>> This is to avoid the use of the "ifdef" style I used before.
>>
>> My point is to drop it completely.
>>
>>>>
>>>>> + device_for_each_child_node(&pdev->dev, child) {
>>>>
>>>> This is resource agnostic.
>>>>
>>>>> + fwnode_property_read_u32(child, "reg",
>>>>> ®);
>>>>
>>>> This is as well.
>>>
>>> Are you suggesting I use of_ functions?
>>
>> Nope. See above.
>>
>>
>
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