From patchwork Tue Feb 13 07:13:08 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 886794 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933532AbeBMHNb (ORCPT ); Tue, 13 Feb 2018 02:13:31 -0500 Received: from mail-it0-f66.google.com ([209.85.214.66]:50922 "EHLO mail-it0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933502AbeBMHN0 (ORCPT ); Tue, 13 Feb 2018 02:13:26 -0500 X-Google-Smtp-Source: AH8x227MNpNvqXCIFbowUJIidjjIX0frMp2ANe+MFynJ7XjTYmHAh9T0rHXKbaMlAjVi7zZ77wcEwA== From: Manivannan Sadhasivam To: slongerbeam@gmail.com, mchehab@kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: todor.tomov@linaro.org, nicolas.dechesne@linaro.org, dragonboard@lists.96boards.org, manivannanece23@gmail.com, Manivannan Sadhasivam Subject: [PATCH] media: i2c: ov5640: Add pixel clock support Date: Tue, 13 Feb 2018 12:43:08 +0530 Message-Id: <1518505988-8389-2-git-send-email-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1518505988-8389-1-git-send-email-manivannan.sadhasivam@linaro.org> References: <1518505988-8389-1-git-send-email-manivannan.sadhasivam@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1321 Lines: 36 Some of the camera subsystems like camss in Qualcommm MSM chipsets require pixel clock support in camera sensor drivers. So, this commit adds a default pixel clock rate of 96MHz to OV5640 camera sensor driver. According to the datasheet, 96MHz can be used as a pixel clock rate for most of the modes. Signed-off-by: Manivannan Sadhasivam --- drivers/media/i2c/ov5640.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c index 39a2269..7152c84 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -162,6 +162,7 @@ struct ov5640_ctrls { struct v4l2_ctrl *auto_gain; struct v4l2_ctrl *gain; }; + struct v4l2_ctrl *pixel_clock; struct v4l2_ctrl *brightness; struct v4l2_ctrl *saturation; struct v4l2_ctrl *contrast; @@ -2009,6 +2010,9 @@ static int ov5640_init_controls(struct ov5640_dev *sensor) ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAIN, 0, 1023, 1, 0); + /* Pixel clock (default of 96MHz) */ + ctrls->pixel_clock = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_PIXEL_RATE, + 1, INT_MAX, 1, 96000000); ctrls->saturation = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SATURATION, 0, 255, 1, 64); ctrls->hue = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HUE,