From patchwork Thu May 27 17:32:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 449134 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FCB4C4707F for ; Thu, 27 May 2021 17:32:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4E1FF6128B for ; Thu, 27 May 2021 17:32:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235392AbhE0ReJ (ORCPT ); Thu, 27 May 2021 13:34:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234594AbhE0ReI (ORCPT ); Thu, 27 May 2021 13:34:08 -0400 Received: from mail-qk1-x72b.google.com (mail-qk1-x72b.google.com [IPv6:2607:f8b0:4864:20::72b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1EDADC061761; Thu, 27 May 2021 10:32:35 -0700 (PDT) Received: by mail-qk1-x72b.google.com with SMTP id v8so1455323qkv.1; Thu, 27 May 2021 10:32:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2/+eIfj53POdJuJ8JguUQYMLt/9wKEEN9EHnJYWkESk=; b=S/Gja7fmlHHsR8eaLY1I6aybT/i/8Yx+SQKS9q1/it3rZ6RIRo0nrGXEQ4kyGVa5RR Id6KHsFZfBf8f6oMpbkeqzA8mFVozV61olOkAkxhmEv2MH8E8zQaBIoESe8jmNQD89Ae Pa5JqVYG7I1JpAz5+q+D9lPdcc3+yRVYp1/P57vbewvQX0N+enEA9MBQIklmNTyHW18V ZVt3jhhPk1FB7Xj/xZZ3dQlqotrIXj59gaBoDnkO7/YczX6vZ4Ex/UWDLCk73AXCbAzR WqJVtFZAtygVd1NLfjJwI6g8pvwSw/V0SXPalfP//trgOkZeDFl/61z6FcE0MeMVeLVH Rnvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=2/+eIfj53POdJuJ8JguUQYMLt/9wKEEN9EHnJYWkESk=; b=eZ71b36BB7WiDJKjsrLciKp3FxEjC0o7JJLFULeDReDJLhq4yD6ooVxHzNNnJYgJ4P ON0JKQxiC279ZAsbjGQVSEfASIojSw4bpvTgVCFoJpFWp9KMJUL70TaFx65iJ9pPYDnT XqbJMkxq5QUvf8K2pEatHFnPOl2ZG/F5db9fdJno17++xJGVEaZodZz23bEHt5XTOa28 ZwOvdIjW7jIbY7uoyF71SScvG8/r3yzeZ9cSn4aCF/YNLi1OVt2buwl8AHmjV1JNS78C Fqfq+WCG0Tx47fT0tPgaPteo77MMDIL3qwXGKAZFE82bYsZaG8MUH1GPUxnVM3lppEIv oKAw== X-Gm-Message-State: AOAM533a/P6gHC1aBnMtWGEw1cKgXUbtHoQmSTmlCYnDkSOu/a5ngt9o 3LDuMkBOZriq72lHX5kei0w= X-Google-Smtp-Source: ABdhPJzdQG652AQAP0YTwOHv5c/o9mMWwnGJzCKe43yJvGK3vOMx3Q52OQATwhvHrm6OrXAJnWSjlA== X-Received: by 2002:a37:65d4:: with SMTP id z203mr4600614qkb.389.1622136754296; Thu, 27 May 2021 10:32:34 -0700 (PDT) Received: from localhost.localdomain ([2804:14c:485:504a:a1cb:22e7:5e60:5887]) by smtp.gmail.com with ESMTPSA id m15sm1715117qtn.47.2021.05.27.10.32.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 May 2021 10:32:33 -0700 (PDT) From: Fabio Estevam To: hverkuil-cisco@xs4all.nl Cc: lars@metafoo.de, matthew.michilot@gmail.com, tharvey@gateworks.com, linux-media@vger.kernel.org, slongerbeam@gmail.com, niklas.soderlund@ragnatech.se, robh+dt@kernel.org, devicetree@vger.kernel.org, Fabio Estevam Subject: [PATCH 2/2] media: i2c: adv7180: fix adv7280 BT.656-4 compatibility Date: Thu, 27 May 2021 14:32:09 -0300 Message-Id: <20210527173209.3874124-2-festevam@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210527173209.3874124-1-festevam@gmail.com> References: <20210527173209.3874124-1-festevam@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Matthew Michilot Captured video would be out of sync when using the adv7280 with the BT.656-4 protocol. Certain registers (0x04, 0x31, 0xE6) had to be configured properly to ensure BT.656-4 compatibility. An error in the adv7280 reference manual suggested that EAV/SAV mode was enabled by default, however upon inspecting register 0x31, it was determined to be disabled by default. Signed-off-by: Matthew Michilot Reviewed-by: Tim Harvey [fabio: Introduce "adv,adv7182-force-bt656-4"] Signed-off-by: Fabio Estevam --- Changes since v1: - Only force BT656-4 when the DT property is present. drivers/media/i2c/adv7180.c | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c index 44bb6fe85644..a532df813d74 100644 --- a/drivers/media/i2c/adv7180.c +++ b/drivers/media/i2c/adv7180.c @@ -94,6 +94,7 @@ #define ADV7180_REG_SHAP_FILTER_CTL_1 0x0017 #define ADV7180_REG_CTRL_2 0x001d #define ADV7180_REG_VSYNC_FIELD_CTL_1 0x0031 +#define ADV7180_VSYNC_FIELD_CTL_1_NEWAV 0x12 #define ADV7180_REG_MANUAL_WIN_CTL_1 0x003d #define ADV7180_REG_MANUAL_WIN_CTL_2 0x003e #define ADV7180_REG_MANUAL_WIN_CTL_3 0x003f @@ -216,6 +217,7 @@ struct adv7180_state { struct i2c_client *vpp_client; const struct adv7180_chip_info *chip_info; enum v4l2_field field; + bool force_bt656_4; }; #define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler, \ struct adv7180_state, \ @@ -963,10 +965,26 @@ static int adv7182_init(struct adv7180_state *state) adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL, 0x57); adv7180_write(state, ADV7180_REG_CTRL_2, 0xc0); } else { - if (state->chip_info->flags & ADV7180_FLAG_V2) - adv7180_write(state, - ADV7180_REG_EXTENDED_OUTPUT_CONTROL, - 0x17); + if (state->chip_info->flags & ADV7180_FLAG_V2) { + if (state->force_bt656_4) { + /* ITU-R BT.656-4 compatible */ + adv7180_write(state, + ADV7180_REG_EXTENDED_OUTPUT_CONTROL, + ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS); + /* Manually set NEWAVMODE */ + adv7180_write(state, + ADV7180_REG_VSYNC_FIELD_CTL_1, + ADV7180_VSYNC_FIELD_CTL_1_NEWAV); + /* Manually set V bit end position in NTSC mode */ + adv7180_write(state, + ADV7180_REG_NTSC_V_BIT_END, + ADV7180_NTSC_V_BIT_END_MANUAL_NVEND); + } else { + adv7180_write(state, + ADV7180_REG_EXTENDED_OUTPUT_CONTROL, + 0x17); + } + } else adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL, @@ -1314,6 +1332,7 @@ static int init_device(struct adv7180_state *state) static int adv7180_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device_node *np = client->dev.of_node; struct adv7180_state *state; struct v4l2_subdev *sd; int ret; @@ -1338,6 +1357,9 @@ static int adv7180_probe(struct i2c_client *client, return ret; } + if (of_property_read_bool(np, "adv,adv7182-force-bt656-4")) + state->force_bt656_4 = true; + if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) { state->csi_client = i2c_new_dummy_device(client->adapter, ADV7180_DEFAULT_CSI_I2C_ADDR);