From patchwork Wed Mar 12 02:06:26 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hao Yao X-Patchwork-Id: 872987 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 BD40E4C81 for ; Wed, 12 Mar 2025 02:07:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741745264; cv=none; b=cAyYfKKmKU85zEIeJ4zOTrOXXREZYESsp9M6c1Jnb6QZpJuufxFzpfI5SL99MbP7ELds33DbwvNfd8DVx/bYLEbKNh1R68ZPwtCDZJpkRgYbsQOX2Sl2MP+NgEfHauD2twctS7y5aOQWYiOZkRcqtNxU1RC9wgwG1O+ZHw0oR5s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741745264; c=relaxed/simple; bh=azG0yGcWjueymM1WAQ+Bl1t+prQJQNaqcuW/EMdYvTA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=awtLrMj6g9HnhNuDLjNm4RS/fJYLWkpPSNkXsZ0LAnU8a49xkCjjSOBewMZHxp2nHSPgCRt5sNM+nLq6wOjYvHwuFB8Q9G6qBvLfzXoA60LgqlVEFlcNNFyZmk3PoxGhNZaWRJx80+4/IqRwg+SRWw97xnLkXET4wusGgeuhTs0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=gbQRsa66; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="gbQRsa66" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1741745263; x=1773281263; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=azG0yGcWjueymM1WAQ+Bl1t+prQJQNaqcuW/EMdYvTA=; b=gbQRsa66g8ZIk3Sn1hToD9gAjFVaIJfksdYl+Oyb0nnJA7NMPBryQaLA T+AhtRI2dNbc38TE8vzeI8tOGBRqejzctPPbNrtQ4JmOoMhFgTlW4iG50 sg81IVYUjqkMrFl3xxzkTiC82CGU979l3IfAoxprDCi4L1yz2/GqDbGGw nv9yUoXLRGt+uy7suAJKvUUarL43GslxdMihKwcSToknJSEk34fOWG5b4 QKPaDWI8e0KnOp9O8Pv6fSQ+kn4Pz16xMGKBwhTWZMKGDInu6IrLS+FcW h2GGHcd+7fZKcWXJsuf1V5xQ7AhmKXkgj5cnS45W9awwwg/OlFKEqmUZZ w==; X-CSE-ConnectionGUID: 5z9BQXaFRFOKG8xNXX07Mg== X-CSE-MsgGUID: zyii2fzOTy2fBQWW2yB0tw== X-IronPort-AV: E=McAfee;i="6700,10204,11370"; a="46455404" X-IronPort-AV: E=Sophos;i="6.14,240,1736841600"; d="scan'208";a="46455404" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2025 19:07:42 -0700 X-CSE-ConnectionGUID: eNk9BgpCSHuhT6sEL6TqUQ== X-CSE-MsgGUID: iTp3xhfKTPaltiE+QY8CRw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,240,1736841600"; d="scan'208";a="125681012" Received: from haoyao-desk.bj.intel.com ([10.238.232.12]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2025 19:07:39 -0700 From: Hao Yao To: Sakari Ailus , Arec Kao , Hans de Goede , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, Hao Yao , Bingbu Cao Subject: [PATCH v3 1/3] media: i2c: ov13b10: Fix h_blank calculation Date: Wed, 12 Mar 2025 10:06:26 +0800 Message-ID: <20250312020713.687778-1-hao.yao@intel.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Pixel per line (PPL) is calculated as pixel_rate / (VTS * FPS), which is not decided by MIPI CSI-2 link frequency. PPL can vary while link frequency keeps the same. If PPL is wrong, the h_blank = PPL - width is also wrong then FPS control is inaccurate. This patch fix h_blank by: 1. Move PPL from link_freq_config to ov13b10_mode 2. Add PPL value for different modes 3. Use PPL from mode to calculate h_blank Signed-off-by: Bingbu Cao Signed-off-by: Hao Yao --- drivers/media/i2c/ov13b10.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/drivers/media/i2c/ov13b10.c b/drivers/media/i2c/ov13b10.c index 73c844aa5697..79c0280e42f3 100644 --- a/drivers/media/i2c/ov13b10.c +++ b/drivers/media/i2c/ov13b10.c @@ -34,9 +34,6 @@ #define OV13B10_VTS_120FPS 0x0320 #define OV13B10_VTS_MAX 0x7fff -/* HBLANK control - read only */ -#define OV13B10_PPL_560MHZ 4704 - /* Exposure control */ #define OV13B10_REG_EXPOSURE 0x3500 #define OV13B10_EXPOSURE_MIN 4 @@ -95,7 +92,7 @@ struct ov13b10_reg_list { /* Link frequency config */ struct ov13b10_link_freq_config { - u32 pixels_per_line; + u64 link_freq; /* registers for this link frequency */ struct ov13b10_reg_list reg_list; @@ -114,6 +111,10 @@ struct ov13b10_mode { /* Index of Link frequency config to be used */ u32 link_freq_index; + + /* Pixels per line in current mode */ + u32 ppl; + /* Default register values */ struct ov13b10_reg_list reg_list; }; @@ -549,7 +550,7 @@ static const s64 link_freq_menu_items[] = { static const struct ov13b10_link_freq_config link_freq_configs[] = { { - .pixels_per_line = OV13B10_PPL_560MHZ, + .link_freq = OV13B10_LINK_FREQ_560MHZ, .reg_list = { .num_of_regs = ARRAY_SIZE(mipi_data_rate_1120mbps), .regs = mipi_data_rate_1120mbps, @@ -564,6 +565,7 @@ static const struct ov13b10_mode supported_modes[] = { .height = 3120, .vts_def = OV13B10_VTS_30FPS, .vts_min = OV13B10_VTS_30FPS, + .ppl = 4704, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_4208x3120_regs), .regs = mode_4208x3120_regs, @@ -575,6 +577,7 @@ static const struct ov13b10_mode supported_modes[] = { .height = 3120, .vts_def = OV13B10_VTS_30FPS, .vts_min = OV13B10_VTS_30FPS, + .ppl = 4704, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_4160x3120_regs), .regs = mode_4160x3120_regs, @@ -586,6 +589,7 @@ static const struct ov13b10_mode supported_modes[] = { .height = 2340, .vts_def = OV13B10_VTS_30FPS, .vts_min = OV13B10_VTS_30FPS, + .ppl = 4704, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_4160x2340_regs), .regs = mode_4160x2340_regs, @@ -597,6 +601,7 @@ static const struct ov13b10_mode supported_modes[] = { .height = 1560, .vts_def = OV13B10_VTS_60FPS, .vts_min = OV13B10_VTS_60FPS, + .ppl = 4704, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_2104x1560_regs), .regs = mode_2104x1560_regs, @@ -608,6 +613,7 @@ static const struct ov13b10_mode supported_modes[] = { .height = 1170, .vts_def = OV13B10_VTS_60FPS, .vts_min = OV13B10_VTS_60FPS, + .ppl = 4704, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_2080x1170_regs), .regs = mode_2080x1170_regs, @@ -620,6 +626,7 @@ static const struct ov13b10_mode supported_modes[] = { .vts_def = OV13B10_VTS_120FPS, .vts_min = OV13B10_VTS_120FPS, .link_freq_index = OV13B10_LINK_FREQ_INDEX_0, + .ppl = 4664, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_1364x768_120fps_regs), .regs = mode_1364x768_120fps_regs, @@ -1072,9 +1079,7 @@ ov13b10_set_pad_format(struct v4l2_subdev *sd, 1, vblank_def); __v4l2_ctrl_s_ctrl(ov13b->vblank, vblank_def); - h_blank = - link_freq_configs[mode->link_freq_index].pixels_per_line - - ov13b->cur_mode->width; + h_blank = mode->ppl - mode->width; __v4l2_ctrl_modify_range(ov13b->hblank, h_blank, h_blank, 1, h_blank); } @@ -1328,8 +1333,7 @@ static int ov13b10_init_controls(struct ov13b10 *ov13b) OV13B10_VTS_MAX - mode->height, 1, vblank_def); - hblank = link_freq_configs[mode->link_freq_index].pixels_per_line - - mode->width; + hblank = mode->ppl - mode->width; ov13b->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops, V4L2_CID_HBLANK, hblank, hblank, 1, hblank);