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Message-ID: <bcfdf67a-37df-335e-9367-75a46496d04b@xs4all.nl>
Date: Fri, 23 Apr 2021 11:14:57 +0200
From: Hans Verkuil <hverkuil@...all.nl>
To: Deepak R Varma <drv@...lo.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
linux-kernel@...r.kernel.org, mh12gx2825@...il.com
Subject: Re: [PATCH] staging: media: atomisp: replace pr_info() by dev_info()
On 22/04/2021 12:30, Deepak R Varma wrote:
> It is recommended to use driver model diagnostic macros dev_*() instead
> of pr_*() since the former ensures that the log messages are always
> associated with the corresponding device and driver.
>
> Suggested-by: Fabio Aiuto <fabioaiuto83@...il.com>
> Signed-off-by: Deepak R Varma <drv@...lo.com>
> ---
>
> Note: There are few more pr_into() calls that I have not replaced since
> they are very basic (entry and exit) and temporary. They can be removed
> if the APIs are fully tested. See this example:
> pr_info("%s S\n", __func__);
>
> Let me know if I should remove them and resubmit this patch.
>
>
> .../media/atomisp/i2c/atomisp-gc0310.c | 30 +++++++++----------
> 1 file changed, 15 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/staging/media/atomisp/i2c/atomisp-gc0310.c b/drivers/staging/media/atomisp/i2c/atomisp-gc0310.c
> index 7e4e123fdb52..27153ec6f65e 100644
> --- a/drivers/staging/media/atomisp/i2c/atomisp-gc0310.c
> +++ b/drivers/staging/media/atomisp/i2c/atomisp-gc0310.c
> @@ -300,7 +300,7 @@ static int gc0310_get_intg_factor(struct i2c_client *client,
> /* pixel clock calculattion */
> dev->vt_pix_clk_freq_mhz = 14400000; // 16.8MHz
> buf->vt_pix_clk_freq_mhz = dev->vt_pix_clk_freq_mhz;
> - pr_info("vt_pix_clk_freq_mhz=%d\n", buf->vt_pix_clk_freq_mhz);
> + dev_info(&client->dev, "vt_pix_clk_freq_mhz=%d\n", buf->vt_pix_clk_freq_mhz);
Use dev_dbg instead to avoid spamming the kernel log with all these
messages. dev_dbg is perfectly fine for this, but not pr_info/dev_info.
Regards,
Hans
>
> /* get integration time */
> buf->coarse_integration_time_min = GC0310_COARSE_INTG_TIME_MIN;
> @@ -326,7 +326,7 @@ static int gc0310_get_intg_factor(struct i2c_client *client,
> if (ret)
> return ret;
> buf->crop_horizontal_start = val | (reg_val & 0xFF);
> - pr_info("crop_horizontal_start=%d\n", buf->crop_horizontal_start);
> + dev_info(&client->dev, "crop_horizontal_start=%d\n", buf->crop_horizontal_start);
>
> /* Getting crop_vertical_start */
> ret = gc0310_read_reg(client, GC0310_8BIT,
> @@ -339,7 +339,7 @@ static int gc0310_get_intg_factor(struct i2c_client *client,
> if (ret)
> return ret;
> buf->crop_vertical_start = val | (reg_val & 0xFF);
> - pr_info("crop_vertical_start=%d\n", buf->crop_vertical_start);
> + dev_info(&client->dev, "crop_vertical_start=%d\n", buf->crop_vertical_start);
>
> /* Getting output_width */
> ret = gc0310_read_reg(client, GC0310_8BIT,
> @@ -352,7 +352,7 @@ static int gc0310_get_intg_factor(struct i2c_client *client,
> if (ret)
> return ret;
> buf->output_width = val | (reg_val & 0xFF);
> - pr_info("output_width=%d\n", buf->output_width);
> + dev_info(&client->dev, "output_width=%d\n", buf->output_width);
>
> /* Getting output_height */
> ret = gc0310_read_reg(client, GC0310_8BIT,
> @@ -365,12 +365,12 @@ static int gc0310_get_intg_factor(struct i2c_client *client,
> if (ret)
> return ret;
> buf->output_height = val | (reg_val & 0xFF);
> - pr_info("output_height=%d\n", buf->output_height);
> + dev_info(&client->dev, "output_height=%d\n", buf->output_height);
>
> buf->crop_horizontal_end = buf->crop_horizontal_start + buf->output_width - 1;
> buf->crop_vertical_end = buf->crop_vertical_start + buf->output_height - 1;
> - pr_info("crop_horizontal_end=%d\n", buf->crop_horizontal_end);
> - pr_info("crop_vertical_end=%d\n", buf->crop_vertical_end);
> + dev_info(&client->dev, "crop_horizontal_end=%d\n", buf->crop_horizontal_end);
> + dev_info(&client->dev, "crop_vertical_end=%d\n", buf->crop_vertical_end);
>
> /* Getting line_length_pck */
> ret = gc0310_read_reg(client, GC0310_8BIT,
> @@ -389,8 +389,8 @@ static int gc0310_get_intg_factor(struct i2c_client *client,
> return ret;
> sh_delay = reg_val;
> buf->line_length_pck = buf->output_width + hori_blanking + sh_delay + 4;
> - pr_info("hori_blanking=%d sh_delay=%d line_length_pck=%d\n", hori_blanking,
> - sh_delay, buf->line_length_pck);
> + dev_info(&client->dev, "hori_blanking=%d sh_delay=%d line_length_pck=%d\n", hori_blanking,
> + sh_delay, buf->line_length_pck);
>
> /* Getting frame_length_lines */
> ret = gc0310_read_reg(client, GC0310_8BIT,
> @@ -404,8 +404,8 @@ static int gc0310_get_intg_factor(struct i2c_client *client,
> return ret;
> vert_blanking = val | (reg_val & 0xFF);
> buf->frame_length_lines = buf->output_height + vert_blanking;
> - pr_info("vert_blanking=%d frame_length_lines=%d\n", vert_blanking,
> - buf->frame_length_lines);
> + dev_info(&client->dev, "vert_blanking=%d frame_length_lines=%d\n", vert_blanking,
> + buf->frame_length_lines);
>
> buf->binning_factor_x = res->bin_factor_x ?
> res->bin_factor_x : 1;
> @@ -434,7 +434,7 @@ static int gc0310_set_gain(struct v4l2_subdev *sd, int gain)
> dgain = gain / 2;
> }
>
> - pr_info("gain=0x%x again=0x%x dgain=0x%x\n", gain, again, dgain);
> + dev_info(&client->dev, "gain=0x%x again=0x%x dgain=0x%x\n", gain, again, dgain);
>
> /* set analog gain */
> ret = gc0310_write_reg(client, GC0310_8BIT,
> @@ -458,7 +458,7 @@ static int __gc0310_set_exposure(struct v4l2_subdev *sd, int coarse_itg,
> struct i2c_client *client = v4l2_get_subdevdata(sd);
> int ret;
>
> - pr_info("coarse_itg=%d gain=%d digitgain=%d\n", coarse_itg, gain, digitgain);
> + dev_info(&client->dev, "coarse_itg=%d gain=%d digitgain=%d\n", coarse_itg, gain, digitgain);
>
> /* set exposure */
> ret = gc0310_write_reg(client, GC0310_8BIT,
> @@ -1085,7 +1085,7 @@ static int gc0310_detect(struct i2c_client *client)
> return -ENODEV;
> }
> id = ((((u16)high) << 8) | (u16)low);
> - pr_info("sensor ID = 0x%x\n", id);
> + dev_info(&client->dev, "sensor ID = 0x%x\n", id);
>
> if (id != GC0310_ID) {
> dev_err(&client->dev, "sensor ID error, read id = 0x%x, target id = 0x%x\n", id,
> @@ -1106,7 +1106,7 @@ static int gc0310_s_stream(struct v4l2_subdev *sd, int enable)
> struct i2c_client *client = v4l2_get_subdevdata(sd);
> int ret;
>
> - pr_info("%s S enable=%d\n", __func__, enable);
> + dev_info(&client->dev, "%s S enable=%d\n", __func__, enable);
> mutex_lock(&dev->input_lock);
>
> if (enable) {
>
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