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Re: [PATCH] add support for the dvb-t part of CT-3650 v3



Reviewed-by: Antti Palosaari <crope@xxxxxx>

It looks just fine.

regards
Antti


On 08/08/2011 01:35 PM, Jose Alberto Reguero wrote:
> On Martes, 2 de Agosto de 2011 21:21:13 Jose Alberto Reguero escribió:
>> On Jueves, 28 de Julio de 2011 21:25:01 Jose Alberto Reguero escribió:
>>> On Miércoles, 27 de Julio de 2011 21:22:26 Antti Palosaari escribió:
>>>> On 07/24/2011 12:45 AM, Jose Alberto Reguero wrote:
>>>>> Read without write work as with write. Attached updated patch.
>>>>>
>>>>> ttusb2-6.diff
>>>>>
>>>>> -		read = i+1<  num&&  (msg[i+1].flags&  I2C_M_RD);
>>>>> +		write_read = i+1<  num&&  (msg[i+1].flags&  I2C_M_RD);
>>>>> +		read = msg[i].flags&  I2C_M_RD;
>>>>
>>>> ttusb2 I2C-adapter seems to be fine for my eyes now. No more writing
>>>> any random bytes in case of single read. Good!
>>>>
>>>>> +	.dtv6_if_freq_khz = TDA10048_IF_4000,
>>>>> +	.dtv7_if_freq_khz = TDA10048_IF_4500,
>>>>> +	.dtv8_if_freq_khz = TDA10048_IF_5000,
>>>>> +	.clk_freq_khz     = TDA10048_CLK_16000,
>>>>>
>>>>>
>>>>> +static int ct3650_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
>>>>
>>>> cosmetic issue rename to ttusb2_ct3650_i2c_gate_ctrl
>>>>
>>>>>   	{ TDA10048_CLK_16000, TDA10048_IF_4000,  10, 3, 0 },
>>>>>
>>>>> +	{ TDA10048_CLK_16000, TDA10048_IF_4500,   5, 3, 0 },
>>>>> +	{ TDA10048_CLK_16000, TDA10048_IF_5000,   5, 3, 0 },
>>>>>
>>>>> +	/* Set the  pll registers */
>>>>> +	tda10048_writereg(state, TDA10048_CONF_PLL1, 0x0f);
>>>>> +	tda10048_writereg(state, TDA10048_CONF_PLL2, (u8)(state-
>>>>
>>>> pll_mfactor));
>>>>
>>>>> +	tda10048_writereg(state, TDA10048_CONF_PLL3,
>>>>> tda10048_readreg(state, TDA10048_CONF_PLL3) |
>>>>> ((u8)(state->pll_nfactor) | 0x40));
>>>>
>>>> This if only issue can have effect to functionality and I want double
>>>> check. I see few things.
>>>>
>>>> 1) clock (and PLL) settings should be done generally only once at
>>>> .init() and probably .sleep() in case of needed for sleep. Something
>>>> like start clock in init, stop clock in sleep. It is usually very first
>>>> thing to set before other. Now it is in wrong place - .set_frontend().
>>>>
>>>> 2) Those clock settings seem somehow weird. As you set different PLL M
>>>> divider for 6 MHz bandwidth than others. Have you looked those are
>>>> really correct? I suspect there could be some other Xtal than 16MHz and
>>>> thus those are wrong. Which Xtals there is inside device used? There is
>>>> most likely 3 Xtals, one for each chip. It is metal box nearest to
>>>> chip.
>>>
>>> I left 6MHz like it was before in the driver. I try to do other way,
>>> allowing to put different PLL in config that the default ones of the
>>> driver and initialize it in init.
>>>
>>> Jose Alberto
>>
>> Attached new version of the patch. Adding tda827x lna and doing tda10048
>> pll in other way.
>>
>> Jose Alberto
> 
> Another version, without tda827x lna. It don't improve anything.
> 
> Jose Alberto
> 
>>
>>>> Ran checkpatch.pl also to find out style issues before send patch.
>>>>
>>>> I have send new version, hopefully final, of MFE. It changes array name
>>>> from adap->mfe to adap-fe. You should also update that.
>>>>
>>>>
>>>> regards
>>>> Antti
>>>
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