From patchwork Mon Jun 17 16:11:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 13701015 X-Patchwork-Delegate: kieran@bingham.xyz Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 75319FC0E; Mon, 17 Jun 2024 16:12:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718640746; cv=none; b=EK89ITX/x2pM7kl4tSXwZT14RVq4HPR7UyIU68U1/VbiNt75A4Lh9a0BgaFTa3/CEe41Pz8dXXkwwOmMXKrPdp5m3qeEYyxFhwGL9cb17+naV4jCCCrzxnNRHLROHQW3UWwqyawn7sfmSGtzjmt2Z4X8Pxlv4rVjsqg5jARea+M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718640746; c=relaxed/simple; bh=30Qexf4g0J1i2/Rxlw45AweA37VZfcnzq0n9YmvxtTc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XqDVKgLbrQR0x2Nn8BevrSNj90caesGO+dLqXWXXmBAk2Su480ZkukYY71ZLQuYM8NGiC5bpwP099FBzxWpxTtbdUi87cpnNRMplkwk7FZGiEu8xb3m0KJ9eaCYl7QtsNBjdYfNtOh/DYgjPN8HDgaXMdQc7zwMgoe0CbAzOQLk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=BO14HBWw; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="BO14HBWw" Received: from localhost.localdomain (93-61-96-190.ip145.fastwebnet.it [93.61.96.190]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id A85CC29A; Mon, 17 Jun 2024 18:11:47 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1718640708; bh=30Qexf4g0J1i2/Rxlw45AweA37VZfcnzq0n9YmvxtTc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BO14HBWwxdms2wxkkWh5+kPDO9V4cZgMg3fd2MvIV06g1ing2FXJLDtRNw6XREiiM kFfOENygPubfcPurmK9FVLbDUrejmqj+jtgG2/iLWPCIwuLt3O1zGnjB+0NN7Jy1jo 8VJJDeUEojU2dlxBdVcLF2DTT7lJQmTC9rwfQ7hE= From: Jacopo Mondi To: Laurent Pinchart , =?utf-8?q?Niklas_S?= =?utf-8?q?=C3=B6derlund?= , Sakari Ailus , Kieran Bingham , Tomi Valkeinen Cc: Jacopo Mondi , linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: [PATCH v4 11/11] media: max9286: Use frame interval from subdev state Date: Mon, 17 Jun 2024 18:11:34 +0200 Message-ID: <20240617161135.130719-12-jacopo.mondi@ideasonboard.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240617161135.130719-1-jacopo.mondi@ideasonboard.com> References: <20240617161135.130719-1-jacopo.mondi@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Use the frame interval stored in the subdev state instead of storing a copy in the driver private structure. Initialize the frame interval to the special case 0/0 that in the max9286 driver represents automatic handling of frame sync. As the frame sync mode is set at s_stream() time, we can remove it from max9286_setup(). Signed-off-by: Jacopo Mondi Reviewed-by: Laurent Pinchart --- drivers/media/i2c/max9286.c | 52 +++++++++++++++++-------------------- 1 file changed, 24 insertions(+), 28 deletions(-) diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c index e247512dfec4..9fc4e130a273 100644 --- a/drivers/media/i2c/max9286.c +++ b/drivers/media/i2c/max9286.c @@ -197,8 +197,6 @@ struct max9286_priv { struct v4l2_ctrl *pixelrate_ctrl; unsigned int pixelrate; - struct v4l2_fract interval; - unsigned int nsources; unsigned int source_mask; unsigned int route_mask; @@ -571,11 +569,14 @@ static void max9286_set_video_format(struct max9286_priv *priv, MAX9286_INVVS | MAX9286_HVSRC_D14); } -static void max9286_set_fsync_period(struct max9286_priv *priv) +static void max9286_set_fsync_period(struct max9286_priv *priv, + struct v4l2_subdev_state *state) { + const struct v4l2_fract *interval; u32 fsync; - if (!priv->interval.numerator || !priv->interval.denominator) { + interval = v4l2_subdev_state_get_interval(state, MAX9286_SRC_PAD); + if (!interval->numerator || !interval->denominator) { /* * Special case, a null interval enables automatic FRAMESYNC * mode. FRAMESYNC is taken from the slowest link. @@ -591,8 +592,8 @@ static void max9286_set_fsync_period(struct max9286_priv *priv) * The FRAMESYNC generator is configured with a period expressed as a * number of PCLK periods. */ - fsync = div_u64((u64)priv->pixelrate * priv->interval.numerator, - priv->interval.denominator); + fsync = div_u64((u64)priv->pixelrate * interval->numerator, + interval->denominator); dev_dbg(&priv->client->dev, "fsync period %u (pclk %u)\n", fsync, priv->pixelrate); @@ -801,7 +802,7 @@ static int max9286_s_stream(struct v4l2_subdev *sd, int enable) format = v4l2_subdev_state_get_format(state, MAX9286_SRC_PAD); max9286_set_video_format(priv, format); - max9286_set_fsync_period(priv); + max9286_set_fsync_period(priv, state); /* * The frame sync between cameras is transmitted across the @@ -874,19 +875,11 @@ static int max9286_get_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *interval) { - struct max9286_priv *priv = sd_to_max9286(sd); - - /* - * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2 - * subdev active state API. - */ - if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - if (interval->pad != MAX9286_SRC_PAD) return -EINVAL; - interval->interval = priv->interval; + interval->interval = *v4l2_subdev_state_get_interval(sd_state, + interval->pad); return 0; } @@ -895,19 +888,11 @@ static int max9286_set_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *interval) { - struct max9286_priv *priv = sd_to_max9286(sd); - - /* - * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2 - * subdev active state API. - */ - if (interval->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - if (interval->pad != MAX9286_SRC_PAD) return -EINVAL; - priv->interval = interval->interval; + *v4l2_subdev_state_get_interval(sd_state, + interval->pad) = interval->interval; return 0; } @@ -994,9 +979,21 @@ static const struct v4l2_mbus_framefmt max9286_default_format = { static int max9286_init_state(struct v4l2_subdev *sd, struct v4l2_subdev_state *state) { + struct v4l2_fract *interval; + for (unsigned int i = 0; i < MAX9286_N_PADS; i++) *v4l2_subdev_state_get_format(state, i) = max9286_default_format; + /* + * Special case: a null interval enables automatic FRAMESYNC mode. + * + * FRAMESYNC is taken from the slowest link. See register 0x01 + * configuration. + */ + interval = v4l2_subdev_state_get_interval(state, MAX9286_SRC_PAD); + interval->numerator = 0; + interval->denominator = 0; + return 0; } @@ -1143,7 +1140,6 @@ static int max9286_setup(struct max9286_priv *priv) max9286_write(priv, 0x69, (0xf & ~priv->route_mask)); max9286_set_video_format(priv, &max9286_default_format); - max9286_set_fsync_period(priv); cfg = max9286_read(priv, 0x1c); if (cfg < 0)