From patchwork Sun Sep 13 18:16:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lad Prabhakar X-Patchwork-Id: 11772407 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 CD5056CA for ; Sun, 13 Sep 2020 18:16:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B41462098B for ; Sun, 13 Sep 2020 18:16:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725938AbgIMSQf (ORCPT ); Sun, 13 Sep 2020 14:16:35 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:26624 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725936AbgIMSQf (ORCPT ); Sun, 13 Sep 2020 14:16:35 -0400 X-IronPort-AV: E=Sophos;i="5.76,422,1592838000"; d="scan'208";a="56924689" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 14 Sep 2020 03:16:32 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 9401D40B5F11; Mon, 14 Sep 2020 03:16:30 +0900 (JST) From: Lad Prabhakar To: =?utf-8?q?Niklas_S=C3=B6derlund?= , Laurent Pinchart , Geert Uytterhoeven , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Lad Prabhakar , Prabhakar Subject: [PATCH v3] media: rcar-vin: Enable YDS bit depending on bus_width and data_shift Date: Sun, 13 Sep 2020 19:16:08 +0100 Message-Id: <20200913181608.32077-1-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Enable YDS bit if bus_width and data_shift is set to 8 in parallel mode for MEDIA_BUS_FMT_UYVY8_2X8 format. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das Reviewed-by: Laurent Pinchart --- Changes for v3: * Dropped BIT macro * Introduced struct v4l2_fwnode_bus_parallel Changes for v2: * Dropped DT binding documentation patch * Select the data pins depending on bus-width and data-shift v1 - https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=323799 --- drivers/media/platform/rcar-vin/rcar-core.c | 9 ++++----- drivers/media/platform/rcar-vin/rcar-dma.c | 17 ++++++++++++++--- drivers/media/platform/rcar-vin/rcar-vin.h | 5 +++-- 3 files changed, 21 insertions(+), 10 deletions(-) diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c index 7440c8965d27..1149ab76cf5c 100644 --- a/drivers/media/platform/rcar-vin/rcar-core.c +++ b/drivers/media/platform/rcar-vin/rcar-core.c @@ -626,12 +626,11 @@ static int rvin_parallel_parse_v4l2(struct device *dev, switch (vin->parallel->mbus_type) { case V4L2_MBUS_PARALLEL: - vin_dbg(vin, "Found PARALLEL media bus\n"); - vin->parallel->mbus_flags = vep->bus.parallel.flags; - break; case V4L2_MBUS_BT656: - vin_dbg(vin, "Found BT656 media bus\n"); - vin->parallel->mbus_flags = 0; + vin_dbg(vin, "Found %s media bus\n", + vin->parallel->mbus_type == V4L2_MBUS_PARALLEL ? + "PARALLEL" : "BT656"); + vin->parallel->bus = vep->bus.parallel; break; default: vin_err(vin, "Unknown media bus type\n"); diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c index a5dbb90c5210..d067439b0b0d 100644 --- a/drivers/media/platform/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/rcar-vin/rcar-dma.c @@ -125,6 +125,7 @@ #define VNDMR2_VPS (1 << 30) #define VNDMR2_HPS (1 << 29) #define VNDMR2_CES (1 << 28) +#define VNDMR2_YDS (1 << 22) #define VNDMR2_FTEV (1 << 17) #define VNDMR2_VLV(n) ((n & 0xf) << 12) @@ -698,16 +699,26 @@ static int rvin_setup(struct rvin_dev *vin) if (!vin->is_csi) { /* Hsync Signal Polarity Select */ - if (!(vin->parallel->mbus_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) + if (!(vin->parallel->bus.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) dmr2 |= VNDMR2_HPS; /* Vsync Signal Polarity Select */ - if (!(vin->parallel->mbus_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) + if (!(vin->parallel->bus.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) dmr2 |= VNDMR2_VPS; /* Data Enable Polarity Select */ - if (vin->parallel->mbus_flags & V4L2_MBUS_DATA_ENABLE_LOW) + if (vin->parallel->bus.flags & V4L2_MBUS_DATA_ENABLE_LOW) dmr2 |= VNDMR2_CES; + + switch (vin->mbus_code) { + case MEDIA_BUS_FMT_UYVY8_2X8: + if (vin->parallel->bus.bus_width == 8 && + vin->parallel->bus.data_shift == 8) + dmr2 |= VNDMR2_YDS; + break; + default: + break; + } } /* diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h b/drivers/media/platform/rcar-vin/rcar-vin.h index c19d077ce1cb..8396e0e45478 100644 --- a/drivers/media/platform/rcar-vin/rcar-vin.h +++ b/drivers/media/platform/rcar-vin/rcar-vin.h @@ -19,6 +19,7 @@ #include #include #include +#include #include /* Number of HW buffers */ @@ -92,7 +93,7 @@ struct rvin_video_format { * @asd: sub-device descriptor for async framework * @subdev: subdevice matched using async framework * @mbus_type: media bus type - * @mbus_flags: media bus configuration flags + * @bus: media bus parallel configuration * @source_pad: source pad of remote subdevice * @sink_pad: sink pad of remote subdevice * @@ -102,7 +103,7 @@ struct rvin_parallel_entity { struct v4l2_subdev *subdev; enum v4l2_mbus_type mbus_type; - unsigned int mbus_flags; + struct v4l2_fwnode_bus_parallel bus; unsigned int source_pad; unsigned int sink_pad;