From patchwork Fri Nov 18 09:39:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Elder X-Patchwork-Id: 626335 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 646D4C433FE for ; Fri, 18 Nov 2022 09:40:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242021AbiKRJkV (ORCPT ); Fri, 18 Nov 2022 04:40:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242006AbiKRJkL (ORCPT ); Fri, 18 Nov 2022 04:40:11 -0500 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 84FAA4AF16; Fri, 18 Nov 2022 01:40:03 -0800 (PST) Received: from pyrite.tail37cf.ts.net (h175-177-042-159.catv02.itscom.jp [175.177.42.159]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id EA73BCCA; Fri, 18 Nov 2022 10:39:58 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1668764402; bh=HsmzzNy9bNbCe7hoI+/Bj6bzVvdd9lHy6nSs+THn7Ck=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EO0/XrpNOAIwtmkdmi5JvwvMfsCeecpWtegG+3FDMI0Pnt+OeJxYpS66u/K8fR3nk JJfx1pP0gaoqi4HPX4GC/NlxtvIkcMRybYA4wGfVje3JwWhB65mDxGIq41ieESOZcs +GbRYq6AFKVO5pWp7bv7H4pcBHTrqNppqmMlFwuk= From: Paul Elder To: linux-media@vger.kernel.org Cc: Laurent Pinchart , Dafna Hirschfeld , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Heiko Stuebner , Helen Koike , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 05/14] media: rkisp1: Configure gasket on i.MX8MP Date: Fri, 18 Nov 2022 18:39:22 +0900 Message-Id: <20221118093931.1284465-6-paul.elder@ideasonboard.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221118093931.1284465-1-paul.elder@ideasonboard.com> References: <20221118093931.1284465-1-paul.elder@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Laurent Pinchart The i.MX8MP has a gasket between the CSI-2 receiver and the ISP. Configure and enable it when starting the ISP, and disable it when stopping. Signed-off-by: Laurent Pinchart --- .../platform/rockchip/rkisp1/rkisp1-common.h | 5 + .../platform/rockchip/rkisp1/rkisp1-dev.c | 16 +++ .../platform/rockchip/rkisp1/rkisp1-isp.c | 128 +++++++++++++++++- 3 files changed, 147 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h index fc33c185b99f..1f9f373aa2a5 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h @@ -24,6 +24,7 @@ #include "rkisp1-regs.h" struct dentry; +struct regmap; /* * flags on the 'direction' field in struct rkisp1_mbus_info' that indicate @@ -448,6 +449,8 @@ struct rkisp1_debug { * @dev: a pointer to the struct device * @clk_size: number of clocks * @clks: array of clocks + * @gasket: the gasket - i.MX8MP only + * @gasket_id: the gasket ID (0 or 1) - i.MX8MP only * @v4l2_dev: v4l2_device variable * @media_dev: media_device variable * @notifier: a notifier to register on the v4l2-async API to be notified on the sensor @@ -468,6 +471,8 @@ struct rkisp1_device { struct device *dev; unsigned int clk_size; struct clk_bulk_data clks[RKISP1_MAX_BUS_CLK]; + struct regmap *gasket; + unsigned int gasket_id; struct v4l2_device v4l2_dev; struct media_device media_dev; struct v4l2_async_notifier notifier; diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c index 69464ce91d59..245caf1725aa 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include @@ -579,6 +580,21 @@ static int rkisp1_probe(struct platform_device *pdev) return ret; rkisp1->clk_size = info->clk_size; + if (info->isp_ver == IMX8MP_V10) { + unsigned int id; + + rkisp1->gasket = syscon_regmap_lookup_by_phandle_args(dev->of_node, + "fsl,blk-ctrl", + 1, &id); + if (IS_ERR(rkisp1->gasket)) { + ret = PTR_ERR(rkisp1->gasket); + dev_err(dev, "failed to get gasket: %d\n", ret); + return ret; + } + + rkisp1->gasket_id = id; + } + pm_runtime_enable(&pdev->dev); ret = pm_runtime_resume_and_get(&pdev->dev); diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c index 585cf3f53469..029191f4338d 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c @@ -10,6 +10,7 @@ #include #include +#include #include #include @@ -87,6 +88,115 @@ rkisp1_isp_get_pad_crop(struct rkisp1_isp *isp, return v4l2_subdev_get_try_crop(&isp->sd, &state, pad); } +/* ----------------------------------------------------------------------------- + * Media block control (i.MX8MP only) + */ + +#define ISP_DEWARP_CONTROL 0x0138 + +#define ISP_DEWARP_CONTROL_MIPI_CSI2_HS_POLARITY BIT(22) +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_RISING (0 << 20) +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_NEGATIVE (1 << 20) +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_POSITIVE (2 << 20) +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_FALLING (3 << 20) +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_MASK GENMASK(21, 20) +#define ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE BIT(19) +#define ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE(dt) ((dt) << 13) +#define ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE_MASK GENMASK(18, 13) + +#define ISP_DEWARP_CONTROL_MIPI_CSI1_HS_POLARITY BIT(12) +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_RISING (0 << 10) +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_NEGATIVE (1 << 10) +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_POSITIVE (2 << 10) +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_FALLING (3 << 10) +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_MASK GENMASK(11, 10) +#define ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE BIT(9) +#define ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE(dt) ((dt) << 3) +#define ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE_MASK GENMASK(8, 3) + +#define ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE BIT(1) +#define ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE BIT(0) + +static int rkisp1_gasket_enable(struct rkisp1_device *rkisp1, + struct media_pad *source) +{ + struct v4l2_subdev *source_sd; + struct v4l2_mbus_frame_desc fd; + unsigned int dt; + u32 mask; + u32 val; + int ret; + + /* + * Configure and enable the gasket with the CSI-2 data type. Set the + * vsync polarity as active high, as that is what the ISP is configured + * to expect in ISP_ACQ_PROP. Enable left justification, as the i.MX8MP + * ISP has a 16-bit wide input and expects data to be left-aligned. + */ + + source_sd = media_entity_to_v4l2_subdev(source->entity); + ret = v4l2_subdev_call(source_sd, pad, get_frame_desc, + source->index, &fd); + if (ret) { + dev_err(rkisp1->dev, + "failed to get frame descriptor from '%s':%u: %d\n", + source_sd->name, 0, ret); + return ret; + } + + if (fd.num_entries != 1) { + dev_err(rkisp1->dev, "invalid frame descriptor for '%s':%u\n", + source_sd->name, 0); + return -EINVAL; + } + + dt = fd.entry[0].bus.csi2.dt; + + if (rkisp1->gasket_id == 0) { + mask = ISP_DEWARP_CONTROL_MIPI_CSI1_HS_POLARITY + | ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_MASK + | ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE + | ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE_MASK + | ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE; + val = ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_POSITIVE + | ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE + | ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE(dt); + } else { + mask = ISP_DEWARP_CONTROL_MIPI_CSI2_HS_POLARITY + | ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_MASK + | ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE + | ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE_MASK + | ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE; + val = ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_POSITIVE + | ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE + | ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE(dt); + } + + regmap_update_bits(rkisp1->gasket, ISP_DEWARP_CONTROL, mask, val); + + return 0; +} + +static void rkisp1_gasket_disable(struct rkisp1_device *rkisp1) +{ + u32 mask; + u32 val; + + if (rkisp1->gasket_id == 1) { + mask = ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE + | ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE_MASK + | ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE; + val = ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE; + } else { + mask = ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE + | ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE_MASK + | ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE; + val = ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE; + } + + regmap_update_bits(rkisp1->gasket, ISP_DEWARP_CONTROL, mask, val); +} + /* ---------------------------------------------------------------------------- * Camera Interface registers configurations */ @@ -304,6 +414,9 @@ static void rkisp1_isp_stop(struct rkisp1_isp *isp) RKISP1_CIF_VI_IRCL_MIPI_SW_RST | RKISP1_CIF_VI_IRCL_ISP_SW_RST); rkisp1_write(rkisp1, RKISP1_CIF_VI_IRCL, 0x0); + + if (rkisp1->info->isp_ver == IMX8MP_V10) + rkisp1_gasket_disable(rkisp1); } static void rkisp1_config_clk(struct rkisp1_isp *isp) @@ -328,13 +441,20 @@ static void rkisp1_config_clk(struct rkisp1_isp *isp) } } -static void rkisp1_isp_start(struct rkisp1_isp *isp) +static int rkisp1_isp_start(struct rkisp1_isp *isp, struct media_pad *source) { struct rkisp1_device *rkisp1 = isp->rkisp1; u32 val; + int ret; rkisp1_config_clk(isp); + if (rkisp1->info->isp_ver == IMX8MP_V10) { + ret = rkisp1_gasket_enable(rkisp1, source); + if (ret) + return ret; + } + /* Activate ISP */ val = rkisp1_read(rkisp1, RKISP1_CIF_ISP_CTRL); val |= RKISP1_CIF_ISP_CTRL_ISP_CFG_UPD | @@ -344,6 +464,8 @@ static void rkisp1_isp_start(struct rkisp1_isp *isp) if (isp->src_fmt->pixel_enc != V4L2_PIXEL_ENC_BAYER) rkisp1_params_post_configure(&rkisp1->params); + + return 0; } /* ---------------------------------------------------------------------------- @@ -882,7 +1004,9 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable) if (ret) goto mutex_unlock; - rkisp1_isp_start(isp); + ret = rkisp1_isp_start(isp, source_pad); + if (ret) + goto mutex_unlock; ret = v4l2_subdev_call(rkisp1->source, video, s_stream, true); if (ret) {