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From: JP <jp@jpvw.nl>
To: Sean Young <sean@mess.org>
Cc: linux-media@vger.kernel.org,
	Michael Ira Krufky <mkrufky@linuxtv.org>,
	Antti Palosaari <crope@iki.fi>,
	Frantisek Rysanek <Frantisek.Rysanek@post.cz>
Subject: Re: [PATCH V3.6 2/2] linux-media: dvbsky: add support for Mygica T230C v2
Date: Thu, 18 Jul 2019 02:29:28 +0200	[thread overview]
Message-ID: <cb7975dc-e553-a07d-eac4-ecae1096b74b@jpvw.nl> (raw)
In-Reply-To: <20190717192548.6d4jsyfbkj3y2z6w@gofer.mess.org>



On 7/17/19 9:25 PM, Sean Young wrote:
> On Wed, Jul 17, 2019 at 08:11:50PM +0200, Jan Pieter van Woerkom wrote:
>> The T230C v2 hardware needs a mode of the si2168 chip to be
>> set for which the si2168 driver previously had no support.
>> This patch uses a specific measure to configure this on the
>> T230C v2 hardware only - see the flag passed via the ts_mode
>> attribute and its dependency on USB_PID_MYGICA_T230C2.
>>
>> Signed-off-by: Jan Pieter van Woerkom <jp@jpvw.nl>
>> Tested-by: Frank Rysanek <Frantisek.Rysanek@post.cz>
>> ---
>> diff -ru a/drivers/media/dvb-frontends/si2168.c b/drivers/media/dvb-frontends/si2168.c
>> --- a/drivers/media/dvb-frontends/si2168.c	2019-07-08 00:41:56.000000000 +0200
>> +++ b/drivers/media/dvb-frontends/si2168.c	2019-07-16 21:21:39.267802750 +0200
>> @@ -82,8 +82,18 @@
>>   
>>   	dev_dbg(&client->dev, "%s acquire: %d\n", __func__, acquire);
>>   
>> +	/* set manual value */
>> +	if (dev->ts_mode & SI2168_TS_CLK_MANUAL) {
>> +		memcpy(cmd.args, "\x14\x00\x0d\x10\xe8\x03", 6);
>> +		cmd.wlen = 6;
>> +		cmd.rlen = 4;
>> +		ret = si2168_cmd_execute(client, &cmd);
>> +		if (ret)
>> +			return ret;
>> +	}
>>   	/* set TS_MODE property */
>>   	memcpy(cmd.args, "\x14\x00\x01\x10\x10\x00", 6);
>> +	cmd.args[4] <<= (dev->ts_mode & SI2168_TS_CLK_MANUAL) >> 5;
> I'm sorry but this is not very readable. How about:
>
> 	if (dev->ts_mode & SI2168_TS_CLK_MANUAL)
> 		cmd.args[4] = SI2168_TS_CLK_MANUAL;
>
> ?
Yes you're right. I'll post update in this thread.
>
> Sean
>
>>   	if (acquire)
>>   		cmd.args[4] |= dev->ts_mode;
>>   	else
>> diff -ru a/drivers/media/dvb-frontends/si2168.h b/drivers/media/dvb-frontends/si2168.h
>> --- a/drivers/media/dvb-frontends/si2168.h	2019-07-08 00:41:56.000000000 +0200
>> +++ b/drivers/media/dvb-frontends/si2168.h	2019-07-16 06:29:53.913009262 +0200
>> @@ -30,6 +30,7 @@
>>   #define SI2168_TS_PARALLEL	0x06
>>   #define SI2168_TS_SERIAL	0x03
>>   #define SI2168_TS_TRISTATE	0x00
>> +#define SI2168_TS_CLK_MANUAL	0x20
>>   	u8 ts_mode;
>>   
>>   	/* TS clock inverted */


  reply	other threads:[~2019-07-18  0:29 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-17 18:05 [PATCH V3.6 0/2] " Jan Pieter van Woerkom
2019-07-17 18:09 ` [PATCH V3.6 1/2] " Jan Pieter van Woerkom
2019-07-17 18:11 ` [PATCH V3.6 2/2] " Jan Pieter van Woerkom
2019-07-17 19:25   ` Sean Young
2019-07-18  0:29     ` JP [this message]
2019-07-18  0:36 ` [PATCH V3.6.1 " Jan Pieter van Woerkom

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