From patchwork Fri Jul 31 09:24:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 11694545 X-Patchwork-Delegate: kieran@bingham.xyz Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 916FF138C for ; Fri, 31 Jul 2020 09:25:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8202D208E4 for ; Fri, 31 Jul 2020 09:25:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732720AbgGaJZR (ORCPT ); Fri, 31 Jul 2020 05:25:17 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:59301 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1732711AbgGaJZO (ORCPT ); Fri, 31 Jul 2020 05:25:14 -0400 X-IronPort-AV: E=Sophos;i="5.75,417,1589209200"; d="scan'208";a="53330059" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 31 Jul 2020 18:25:13 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id D0B9E400C9E4; Fri, 31 Jul 2020 18:25:10 +0900 (JST) From: Lad Prabhakar To: Jacopo Mondi , Mauro Carvalho Chehab , Steve Longerbeam , Sakari Ailus , linux-media@vger.kernel.org, Hugues Fruchet , Laurent Pinchart Cc: linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Biju Das , Prabhakar , Lad Prabhakar Subject: [PATCH 2/2] media: i2c: ov5640: Add support for BT656 mode Date: Fri, 31 Jul 2020 10:24:47 +0100 Message-Id: <1596187487-31403-3-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1596187487-31403-1-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <1596187487-31403-1-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Enable support for BT656 mode. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das --- drivers/media/i2c/ov5640.c | 48 +++++++++++++++++++++++++++++++--------------- 1 file changed, 33 insertions(+), 15 deletions(-) diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c index ac305a5..2b23988 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -82,6 +82,7 @@ #define OV5640_REG_VFIFO_HSIZE 0x4602 #define OV5640_REG_VFIFO_VSIZE 0x4604 #define OV5640_REG_JPG_MODE_SELECT 0x4713 +#define OV5640_REG_CCIR656_CTRL00 0x4730 #define OV5640_REG_POLARITY_CTRL00 0x4740 #define OV5640_REG_MIPI_CTRL00 0x4800 #define OV5640_REG_DEBUG_MODE 0x4814 @@ -1213,6 +1214,17 @@ static int ov5640_set_stream_dvp(struct ov5640_dev *sensor, bool on) return ov5640_write_reg(sensor, OV5640_REG_SYS_CTRL0, on ? 0x2 : 0x42); } +static int ov5640_set_stream_bt656(struct ov5640_dev *sensor, bool on) +{ + int ret; + + ret = ov5640_write_reg(sensor, OV5640_REG_CCIR656_CTRL00, on ? 0x1 : 0x00); + if (ret) + return ret; + + return ov5640_write_reg(sensor, OV5640_REG_SYS_CTRL0, on ? 0x2 : 0x42); +} + static int ov5640_set_stream_mipi(struct ov5640_dev *sensor, bool on) { int ret; @@ -1998,18 +2010,21 @@ static int ov5640_set_power(struct ov5640_dev *sensor, bool on) * datasheet and hardware, 0 is active high * and 1 is active low...) */ - if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING) - pclk_pol = 1; - if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) - hsync_pol = 1; - if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) - vsync_pol = 1; - - ret = ov5640_write_reg(sensor, OV5640_REG_POLARITY_CTRL00, - (pclk_pol << 5) | (hsync_pol << 1) | vsync_pol); - - if (ret) - goto power_off; + if (sensor->ep.bus_type == V4L2_MBUS_PARALLEL) { + if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING) + pclk_pol = 1; + if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) + hsync_pol = 1; + if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) + vsync_pol = 1; + + ret = ov5640_write_reg(sensor, OV5640_REG_POLARITY_CTRL00, + (pclk_pol << 5) | (hsync_pol << 1) | + vsync_pol); + + if (ret) + goto power_off; + } /* * powerdown MIPI TX/RX PHY & disable MIPI @@ -2033,7 +2048,9 @@ static int ov5640_set_power(struct ov5640_dev *sensor, bool on) * - 4: PCLK output enable * - [3:0]: D[9:6] output enable */ - ret = ov5640_write_reg(sensor, OV5640_REG_PAD_OUTPUT_ENABLE01, 0x7f); + ret = ov5640_write_reg(sensor, OV5640_REG_PAD_OUTPUT_ENABLE01, + sensor->ep.bus_type == V4L2_MBUS_PARALLEL ? + 0x7f : 0x1f); if (ret) goto power_off; @@ -2047,7 +2064,6 @@ static int ov5640_set_power(struct ov5640_dev *sensor, bool on) if (ret) goto power_off; } - } else { if (sensor->ep.bus_type == V4L2_MBUS_CSI2_DPHY) { /* Reset MIPI bus settings to their default values. */ @@ -2875,8 +2891,10 @@ static int ov5640_s_stream(struct v4l2_subdev *sd, int enable) if (sensor->ep.bus_type == V4L2_MBUS_CSI2_DPHY) ret = ov5640_set_stream_mipi(sensor, enable); - else + else if (sensor->ep.bus_type == V4L2_MBUS_PARALLEL) ret = ov5640_set_stream_dvp(sensor, enable); + else + ret = ov5640_set_stream_bt656(sensor, enable); if (!ret) sensor->streaming = enable;