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Date: Tue, 22 Jan 2013 12:50:38 +0100
From: Hans Verkuil <hverkuil@...all.nl>
To: Prabhakar Lad <prabhakar.csengg@...il.com>
Cc: LMML <linux-media@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
"Lad, Prabhakar" <prabhakar.lad@...com>,
Hans Verkuil <hans.verkuil@...co.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Mauro Carvalho Chehab <mchehab@...hat.com>
Subject: Re: [PATCH v2] media: adv7343: accept configuration through platform data
On Tue 22 January 2013 06:19:50 Prabhakar Lad wrote:
> From: Lad, Prabhakar <prabhakar.lad@...com>
>
> 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 passed.
>
> Signed-off-by: Lad, Prabhakar <prabhakar.lad@...com>
> Cc: Hans Verkuil <hans.verkuil@...co.com>
> Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> Cc: Mauro Carvalho Chehab <mchehab@...hat.com>
Acked-by: Hans Verkuil <hans.verkuil@...co.com>
Regards,
Hans
> ---
> Changes for v2:
> 1: Fixed review comments pointed by Hans.
>
> drivers/media/i2c/adv7343.c | 36 +++++++++++++++++++++++++----
> include/media/adv7343.h | 52 +++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 83 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..944757b 100644
> --- a/include/media/adv7343.h
> +++ b/include/media/adv7343.h
> @@ -20,4 +20,56 @@
> #define ADV7343_COMPONENT_ID (1)
> #define ADV7343_SVIDEO_ID (2)
>
> +/**
> + * adv7343_power_mode - power mode configuration.
> + * @sleep_mode: on enable the current consumption is reduced to micro ampere
> + * level. All DACs and the internal PLL circuit are disabled.
> + * Registers can be read from and written in sleep mode.
> + * @pll_control: PLL and oversampling control. This control allows internal
> + * PLL 1 circuit to be powered down and the oversampling to be
> + * switched off.
> + * @dac_1: power on/off DAC 1.
> + * @dac_2: power on/off DAC 2.
> + * @dac_3: power on/off DAC 3.
> + * @dac_4: power on/off DAC 4.
> + * @dac_5: power on/off DAC 5.
> + * @dac_6: power on/off DAC 6.
> + *
> + * Power mode register (Register 0x0), for more info refer REGISTER MAP ACCESS
> + * section of datasheet[1], table 17 page no 30.
> + *
> + * [1] http://www.analog.com/static/imported-files/data_sheets/ADV7342_7343.pdf
> + */
> +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;
> +};
> +
> +/**
> + * 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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