linux-kernel - [PATCH v2] media: imx: remove code for non-existing config IMX_GPT

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Message-Id: <20221123075216.28193-1-lukas.bulwahn@gmail.com>
Date:   Wed, 23 Nov 2022 08:52:16 +0100
From:   Lukas Bulwahn <lukas.bulwahn@...il.com>
To:     Tommaso Merciai <tommaso.merciai@...rulasolutions.com>,
        Steve Longerbeam <slongerbeam@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: [PATCH v2] media: imx: remove code for non-existing config IMX_GPT_ICAP

There never was a config IMX_GPT_ICAP in the repository. So remove the code
conditional on this config and simplify the callers that just called empty
functions.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
---
v1: https://lore.kernel.org/all/20221122132330.30408-1-lukas.bulwahn@gmail.com/

v1 -> v2:
  - addressed Tommaso's feedback: remove braces for single statement blocks

 drivers/staging/media/imx/imx-media-fim.c | 57 +----------------------
 1 file changed, 1 insertion(+), 56 deletions(-)

diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c
index 3a9182933508..fb6590dcfc36 100644
--- a/drivers/staging/media/imx/imx-media-fim.c
+++ b/drivers/staging/media/imx/imx-media-fim.c
@@ -187,54 +187,6 @@ static void frame_interval_monitor(struct imx_media_fim *fim,
 		send_fim_event(fim, error_avg);
 }
 
-#ifdef CONFIG_IMX_GPT_ICAP
-/*
- * Input Capture method of measuring frame intervals. Not subject
- * to interrupt latency.
- */
-static void fim_input_capture_handler(int channel, void *dev_id,
-				      ktime_t timestamp)
-{
-	struct imx_media_fim *fim = dev_id;
-	unsigned long flags;
-
-	spin_lock_irqsave(&fim->lock, flags);
-
-	frame_interval_monitor(fim, timestamp);
-
-	if (!completion_done(&fim->icap_first_event))
-		complete(&fim->icap_first_event);
-
-	spin_unlock_irqrestore(&fim->lock, flags);
-}
-
-static int fim_request_input_capture(struct imx_media_fim *fim)
-{
-	init_completion(&fim->icap_first_event);
-
-	return mxc_request_input_capture(fim->icap_channel,
-					 fim_input_capture_handler,
-					 fim->icap_flags, fim);
-}
-
-static void fim_free_input_capture(struct imx_media_fim *fim)
-{
-	mxc_free_input_capture(fim->icap_channel, fim);
-}
-
-#else /* CONFIG_IMX_GPT_ICAP */
-
-static int fim_request_input_capture(struct imx_media_fim *fim)
-{
-	return 0;
-}
-
-static void fim_free_input_capture(struct imx_media_fim *fim)
-{
-}
-
-#endif /* CONFIG_IMX_GPT_ICAP */
-
 /*
  * In case we are monitoring the first frame interval after streamon
  * (when fim->num_skip = 0), we need a valid fim->last_ts before we
@@ -434,15 +386,8 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
 		update_fim_nominal(fim, fi);
 		spin_unlock_irqrestore(&fim->lock, flags);
 
-		if (icap_enabled(fim)) {
-			ret = fim_request_input_capture(fim);
-			if (ret)
-				goto out;
-			fim_acquire_first_ts(fim);
-		}
-	} else {
 		if (icap_enabled(fim))
-			fim_free_input_capture(fim);
+			fim_acquire_first_ts(fim);
 	}
 
 	fim->stream_on = on;
-- 
2.17.1