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Date: Mon, 21 Jan 2013 15:52:32 +0530
From: Prabhakar Lad <prabhakar.csengg@...il.com>
To: Hans Verkuil <hverkuil@...all.nl>
Cc: LMML <linux-media@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
Mauro Carvalho Chehab <mchehab@...radead.org>,
Hans Verkuil <hans.verkuil@...co.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
"Lad, Prabhakar" <prabhakar.lad@...com>
Subject: Re: [PATCH] media: adv7343: accept configuration through platform data
Hi Hans,
Thanks for the review!
On Mon, Jan 21, 2013 at 3:31 PM, Hans Verkuil <hverkuil@...all.nl> wrote:
> On Tue January 15 2013 09:00:53 Lad, Prabhakar wrote:
>> The current code was implemented with some default configurations,
>> this default configuration works on board and doesn't work on other.
>>
>> This patch accepts the configuration through platform data and configures
>> the encoder depending on the data set.
>
> Just one small comment...
>
>>
>> Signed-off-by: Lad, Prabhakar <prabhakar.lad@...com>
>> ---
>> drivers/media/i2c/adv7343.c | 36 +++++++++++++++++++++++++++++++-----
>> include/media/adv7343.h | 32 ++++++++++++++++++++++++++++++++
>> 2 files changed, 63 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c
>> index 2b5aa67..a058058 100644
>> --- a/drivers/media/i2c/adv7343.c
>> +++ b/drivers/media/i2c/adv7343.c
>> @@ -43,6 +43,7 @@ MODULE_PARM_DESC(debug, "Debug level 0-1");
>> struct adv7343_state {
>> struct v4l2_subdev sd;
>> struct v4l2_ctrl_handler hdl;
>> + const struct adv7343_platform_data *pdata;
>> u8 reg00;
>> u8 reg01;
>> u8 reg02;
>> @@ -215,12 +216,23 @@ static int adv7343_setoutput(struct v4l2_subdev *sd, u32 output_type)
>> /* Enable Appropriate DAC */
>> val = state->reg00 & 0x03;
>>
>> - if (output_type == ADV7343_COMPOSITE_ID)
>> - val |= ADV7343_COMPOSITE_POWER_VALUE;
>> - else if (output_type == ADV7343_COMPONENT_ID)
>> - val |= ADV7343_COMPONENT_POWER_VALUE;
>> + /* configure default configuration */
>> + if (!state->pdata)
>> + if (output_type == ADV7343_COMPOSITE_ID)
>> + val |= ADV7343_COMPOSITE_POWER_VALUE;
>> + else if (output_type == ADV7343_COMPONENT_ID)
>> + val |= ADV7343_COMPONENT_POWER_VALUE;
>> + else
>> + val |= ADV7343_SVIDEO_POWER_VALUE;
>> else
>> - val |= ADV7343_SVIDEO_POWER_VALUE;
>> + val = state->pdata->mode_config.sleep_mode << 0 |
>> + state->pdata->mode_config.pll_control << 1 |
>> + state->pdata->mode_config.dac_3 << 2 |
>> + state->pdata->mode_config.dac_2 << 3 |
>> + state->pdata->mode_config.dac_1 << 4 |
>> + state->pdata->mode_config.dac_6 << 5 |
>> + state->pdata->mode_config.dac_5 << 6 |
>> + state->pdata->mode_config.dac_4 << 7;
>>
>> err = adv7343_write(sd, ADV7343_POWER_MODE_REG, val);
>> if (err < 0)
>> @@ -238,6 +250,17 @@ static int adv7343_setoutput(struct v4l2_subdev *sd, u32 output_type)
>>
>> /* configure SD DAC Output 2 and SD DAC Output 1 bit to zero */
>> val = state->reg82 & (SD_DAC_1_DI & SD_DAC_2_DI);
>> +
>> + if (state->pdata && state->pdata->sd_config.sd_dac_out1)
>> + val = val | (state->pdata->sd_config.sd_dac_out1 << 1);
>> + else if (state->pdata && !state->pdata->sd_config.sd_dac_out1)
>> + val = val & ~(state->pdata->sd_config.sd_dac_out1 << 1);
>> +
>> + if (state->pdata && state->pdata->sd_config.sd_dac_out2)
>> + val = val | (state->pdata->sd_config.sd_dac_out2 << 2);
>> + else if (state->pdata && !state->pdata->sd_config.sd_dac_out2)
>> + val = val & ~(state->pdata->sd_config.sd_dac_out2 << 2);
>> +
>> err = adv7343_write(sd, ADV7343_SD_MODE_REG2, val);
>> if (err < 0)
>> goto setoutput_exit;
>> @@ -401,6 +424,9 @@ static int adv7343_probe(struct i2c_client *client,
>> if (state == NULL)
>> return -ENOMEM;
>>
>> + /* Copy board specific information here */
>> + state->pdata = client->dev.platform_data;
>> +
>> state->reg00 = 0x80;
>> state->reg01 = 0x00;
>> state->reg02 = 0x20;
>> diff --git a/include/media/adv7343.h b/include/media/adv7343.h
>> index d6f8a4e..8086e46 100644
>> --- a/include/media/adv7343.h
>> +++ b/include/media/adv7343.h
>> @@ -20,4 +20,36 @@
>> #define ADV7343_COMPONENT_ID (1)
>> #define ADV7343_SVIDEO_ID (2)
>>
>> +struct adv7343_power_mode {
>> + bool sleep_mode;
>> + bool pll_control;
>> + bool dac_1;
>> + bool dac_2;
>> + bool dac_3;
>> + bool dac_4;
>> + bool dac_5;
>> + bool dac_6;
>> +};
>
> Can you add a short description for struct adv7343_power_mode? It's
> sufficient to point to the relevant section in the datasheet (add a url
> or something like that).
>
Ok I'll do the needy. and respin v2.
Regards,
--Prabhakar
> Regards,
>
> Hans
>
>> +
>> +/**
>> + * struct adv7343_sd_config - SD Only Output Configuration.
>> + * @sd_dac_out1: Configure SD DAC Output 1.
>> + * @sd_dac_out2: Configure SD DAC Output 2.
>> + */
>> +struct adv7343_sd_config {
>> + /* SD only Output Configuration */
>> + bool sd_dac_out1;
>> + bool sd_dac_out2;
>> +};
>> +
>> +/**
>> + * struct adv7343_platform_data - Platform data values and access functions.
>> + * @mode_config: Configuration for power mode.
>> + * @sd_config: SD Only Configuration.
>> + */
>> +struct adv7343_platform_data {
>> + struct adv7343_power_mode mode_config;
>> + struct adv7343_sd_config sd_config;
>> +};
>> +
>> #endif /* End of #ifndef ADV7343_H */
>>
--
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