From: laurent.pinchart@ideasonboard.com (Laurent Pinchart)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] media: atmel-isi: remove mck back compatiable code as we don't need it
Date: Thu, 05 Mar 2015 12:41:08 +0200 [thread overview]
Message-ID: <3743731.I7IKcDRdB6@avalon> (raw)
In-Reply-To: <1425531661-20040-4-git-send-email-josh.wu@atmel.com>
Hi Josh,
Thank you for the patch.
On Thursday 05 March 2015 13:01:01 Josh Wu wrote:
> The master clock should handled by sensor itself.
I like that :-)
> Signed-off-by: Josh Wu <josh.wu@atmel.com>
> ---
>
> drivers/media/platform/soc_camera/atmel-isi.c | 32 ------------------------
> 1 file changed, 32 deletions(-)
>
> diff --git a/drivers/media/platform/soc_camera/atmel-isi.c
> b/drivers/media/platform/soc_camera/atmel-isi.c index 4a384f1..50375ce
> 100644
> --- a/drivers/media/platform/soc_camera/atmel-isi.c
> +++ b/drivers/media/platform/soc_camera/atmel-isi.c
> @@ -83,8 +83,6 @@ struct atmel_isi {
> struct completion complete;
> /* ISI peripherial clock */
> struct clk *pclk;
> - /* ISI_MCK, feed to camera sensor to generate pixel clock */
> - struct clk *mck;
> unsigned int irq;
>
> struct isi_platform_data pdata;
> @@ -725,26 +723,12 @@ static void isi_camera_remove_device(struct
> soc_camera_device *icd) /* Called with .host_lock held */
> static int isi_camera_clock_start(struct soc_camera_host *ici)
> {
> - struct atmel_isi *isi = ici->priv;
> - int ret;
> -
> - if (!IS_ERR(isi->mck)) {
> - ret = clk_prepare_enable(isi->mck);
> - if (ret) {
> - return ret;
> - }
> - }
> -
> return 0;
Would it make sense to make the clock_start and clock_stop operations optional
in the soc-camera core ?
> }
>
> /* Called with .host_lock held */
> static void isi_camera_clock_stop(struct soc_camera_host *ici)
> {
> - struct atmel_isi *isi = ici->priv;
> -
> - if (!IS_ERR(isi->mck))
> - clk_disable_unprepare(isi->mck);
> }
>
> static unsigned int isi_camera_poll(struct file *file, poll_table *pt)
> @@ -894,7 +878,6 @@ static int atmel_isi_probe_dt(struct atmel_isi *isi,
>
> /* Default settings for ISI */
> isi->pdata.full_mode = 1;
> - isi->pdata.mck_hz = ISI_DEFAULT_MCLK_FREQ;
> isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL;
>
> np = of_graph_get_next_endpoint(np, NULL);
> @@ -970,21 +953,6 @@ static int atmel_isi_probe(struct platform_device
> *pdev) INIT_LIST_HEAD(&isi->video_buffer_list);
> INIT_LIST_HEAD(&isi->dma_desc_head);
>
> - /* ISI_MCK is the sensor master clock. It should be handled by the
> - * sensor driver directly, as the ISI has no use for that clock. Make
> - * the clock optional here while platforms transition to the correct
> - * model.
> - */
> - isi->mck = devm_clk_get(dev, "isi_mck");
> - if (!IS_ERR(isi->mck)) {
> - /* Set ISI_MCK's frequency, it should be faster than pixel
> - * clock.
> - */
> - ret = clk_set_rate(isi->mck, isi->pdata.mck_hz);
> - if (ret < 0)
> - return ret;
> - }
> -
> isi->p_fb_descriptors = dma_alloc_coherent(&pdev->dev,
> sizeof(struct fbd) * MAX_BUFFER_NUM,
> &isi->fb_descriptors_phys,
--
Regards,
Laurent Pinchart
next prev parent reply other threads:[~2015-03-05 10:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-05 5:00 [PATCH 0/3] media: atmel-isi: rework on the clock part and add runtime pm support Josh Wu
2015-03-05 5:00 ` [PATCH 1/3] media: atmel-isi: move the peripheral clock to start/stop_stream() function Josh Wu
2015-03-05 10:39 ` Laurent Pinchart
2015-03-06 10:16 ` Josh Wu
2015-03-05 5:01 ` [PATCH 2/3] media: atmel-isi: add runtime pm support Josh Wu
2015-03-05 10:36 ` Laurent Pinchart
2015-03-06 10:10 ` Josh Wu
2015-03-05 5:01 ` [PATCH 3/3] media: atmel-isi: remove mck back compatiable code as we don't need it Josh Wu
2015-03-05 10:41 ` Laurent Pinchart [this message]
2015-03-06 10:13 ` Josh Wu
2015-03-06 20:25 ` Guennadi Liakhovetski
2015-03-08 0:28 ` Laurent Pinchart
2015-03-09 1:33 ` Josh Wu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3743731.I7IKcDRdB6@avalon \
--to=laurent.pinchart@ideasonboard.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).