(Resending as the message didn't seem to end up on the mailing list)
> Hi Stanislaw,
>
> Some more comments on top of those of Gabor.
>
> Sent from my iPad
>
> On 9 apr. 2013, at 17:05, stf_xl@xxxxx wrote:
>
>> From: Stanislaw Gruszka <stf_xl@xxxxx>
>>
>> Add separate functions for rf init calibration code and use it in
>> proper init rf routines.
>>
>> Signed-off-by: Stanislaw Gruszka <stf_xl@xxxxx>
>> ---
>> drivers/net/wireless/rt2x00/rt2800lib.c | 53 ++++++++++++++++++-------------
>> 1 files changed, 31 insertions(+), 22 deletions(-)
>>
>> diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
>> index d092b47..334973a 100644
>> --- a/drivers/net/wireless/rt2x00/rt2800lib.c
>> +++ b/drivers/net/wireless/rt2x00/rt2800lib.c
>> @@ -4425,6 +4425,18 @@ static void rt2800_normal_mode_setup_5xxx(struct rt2x00_dev *rt2x00dev)
>> rt2800_rfcsr_write(rt2x00dev, 30, reg);
>> }
>>
>> +static void rt2800_rf_init_calibration_53xx(struct rt2x00_dev *rt2x00dev)
>
> The name of the function is't great, as you call it from the RT3290 setup code as well. How about generalizing it to a rt2800_init_calibration, which also takes an RF CSR number and a value bitmask as parameters, which then can also be used for the other chipsets?
>
>> +{
>> + u8 rfcsr;
>> +
>> + rt2800_rfcsr_read(rt2x00dev, 2, &rfcsr);
>> + rt2x00_set_field8(&rfcsr, RFCSR2_RESCAL_EN, 1);
>> + rt2800_rfcsr_write(rt2x00dev, 2, rfcsr);
>> + msleep(1);
>> + rt2x00_set_field8(&rfcsr, RFCSR2_RESCAL_EN, 0);
>> + rt2800_rfcsr_write(rt2x00dev, 2, rfcsr);
>> +}
>> +
>> static void rt2800_init_rfcsr_305x_soc(struct rt2x00_dev *rt2x00dev)
>> {
>> rt2800_rfcsr_write(rt2x00dev, 0, 0x50);
>> @@ -4463,6 +4475,19 @@ static void rt2800_init_rfcsr_305x_soc(struct rt2x00_dev *rt2x00dev)
>>
>> static void rt2800_init_rfcsr_30xx(struct rt2x00_dev *rt2x00dev)
>> {
>> + u8 rfcsr;
>> +
>> + /*
>> + * Init RF calibration.
>> + * XXX: vendor driver do this only for 3070 ?
>> + */
>> + rt2800_rfcsr_read(rt2x00dev, 30, &rfcsr);
>> + rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 1);
>> + rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
>> + msleep(1);
>> + rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 0);
>> + rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
>> +
>> rt2800_rfcsr_write(rt2x00dev, 4, 0x40);
>> rt2800_rfcsr_write(rt2x00dev, 5, 0x03);
>> rt2800_rfcsr_write(rt2x00dev, 6, 0x02);
>> @@ -4486,6 +4511,8 @@ static void rt2800_init_rfcsr_30xx(struct rt2x00_dev *rt2x00dev)
>>
>> static void rt2800_init_rfcsr_3290(struct rt2x00_dev *rt2x00dev)
>> {
>> + rt2800_rf_init_calibration_53xx(rt2x00dev);
>> +
>> rt2800_rfcsr_write(rt2x00dev, 1, 0x0f);
>> rt2800_rfcsr_write(rt2x00dev, 2, 0x80);
>> rt2800_rfcsr_write(rt2x00dev, 3, 0x08);
>> @@ -4674,6 +4701,8 @@ static void rt2800_init_rfcsr_3572(struct rt2x00_dev *rt2x00dev)
>>
>> static void rt2800_init_rfcsr_5390(struct rt2x00_dev *rt2x00dev)
>> {
>> + rt2800_rf_init_calibration_53xx(rt2x00dev);
>> +
>> rt2800_rfcsr_write(rt2x00dev, 1, 0x0f);
>> rt2800_rfcsr_write(rt2x00dev, 2, 0x80);
>> rt2800_rfcsr_write(rt2x00dev, 3, 0x88);
>> @@ -4760,6 +4789,8 @@ static void rt2800_init_rfcsr_5390(struct rt2x00_dev *rt2x00dev)
>>
>> static void rt2800_init_rfcsr_5392(struct rt2x00_dev *rt2x00dev)
>> {
>> + rt2800_rf_init_calibration_53xx(rt2x00dev);
>> +
>> rt2800_rfcsr_write(rt2x00dev, 1, 0x17);
>> rt2800_rfcsr_write(rt2x00dev, 2, 0x80);
>> rt2800_rfcsr_write(rt2x00dev, 3, 0x88);
>> @@ -4882,28 +4913,6 @@ static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
>> !rt2800_is_305x_soc(rt2x00dev))
>> return 0;
>>
>> - /*
>> - * Init RF calibration.
>> - */
>> -
>> - if (rt2x00_rt(rt2x00dev, RT3290) ||
>> - rt2x00_rt(rt2x00dev, RT5390) ||
>> - rt2x00_rt(rt2x00dev, RT5392)) {
>> - rt2800_rfcsr_read(rt2x00dev, 2, &rfcsr);
>> - rt2x00_set_field8(&rfcsr, RFCSR2_RESCAL_EN, 1);
>> - rt2800_rfcsr_write(rt2x00dev, 2, rfcsr);
>> - msleep(1);
>> - rt2x00_set_field8(&rfcsr, RFCSR2_RESCAL_EN, 0);
>> - rt2800_rfcsr_write(rt2x00dev, 2, rfcsr);
>> - } else {
>> - rt2800_rfcsr_read(rt2x00dev, 30, &rfcsr);
>> - rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 1);
>> - rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
>> - msleep(1);
>> - rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 0);
>> - rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
>> - }
>> -
>
> As Gabor already mentioned, this else branch is used for other chipsets (not just 305x_soc, but also RT35xx, RT55xx).
>
>> if (rt2800_is_305x_soc(rt2x00dev)) {
>> rt2800_init_rfcsr_305x_soc(rt2x00dev);
>> return 0;
>> --
>> 1.7.4.4
>>
>> --
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