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bh=jPCAyGIaCpVn+CBKxCEdizeov7zcOBsaTTXln0USCBA=; b=NPh3su3yyhQ+PIaQjBMDV6440stqqE6FA3ElM2xWew9WvWFrZs7B5cNg8DJUmKmA+HhR7aynNwy104Dx8ZuThVm+OcW1wNjB3vA7lFiPEB7vOZ/Hh4bIZEIhZgncK3GKjvsRTw52h5i8XEmeN/7AsdGa1e+lh/IbUx80HA1BBC8= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=bp.renesas.com; Received: from OS9PR01MB13950.jpnprd01.prod.outlook.com (2603:1096:604:35e::5) by OS3PR01MB9720.jpnprd01.prod.outlook.com (2603:1096:604:1f1::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8534.42; Fri, 28 Mar 2025 17:32:17 +0000 Received: from OS9PR01MB13950.jpnprd01.prod.outlook.com ([fe80::244d:8815:7064:a9f3]) by OS9PR01MB13950.jpnprd01.prod.outlook.com ([fe80::244d:8815:7064:a9f3%5]) with mapi id 15.20.8534.043; Fri, 28 Mar 2025 17:32:16 +0000 From: Tommaso Merciai To: tomm.merciai@gmail.com Cc: linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org, biju.das.jz@bp.renesas.com, prabhakar.mahadev-lad.rj@bp.renesas.com, Laurent Pinchart , Tommaso Merciai , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , Geert Uytterhoeven , Magnus Damm , Hans Verkuil , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 10/17] media: rzg2l-cru: csi2: Add support for RZ/V2H(P) SoC Date: Fri, 28 Mar 2025 18:29:46 +0100 Message-ID: <20250328173032.423322-11-tommaso.merciai.xr@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250328173032.423322-1-tommaso.merciai.xr@bp.renesas.com> References: <20250328173032.423322-1-tommaso.merciai.xr@bp.renesas.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: FR0P281CA0057.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:49::14) To OS9PR01MB13950.jpnprd01.prod.outlook.com (2603:1096:604:35e::5) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: OS9PR01MB13950:EE_|OS3PR01MB9720:EE_ X-MS-Office365-Filtering-Correlation-Id: 7b7a3d6d-f907-42bf-e212-08dd6e1e7bf8 X-LD-Processed: 53d82571-da19-47e4-9cb4-625a166a4a2a,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|52116014|366016|1800799024|38350700014; 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charset="utf-8" From: Lad Prabhakar The D-PHY on the RZ/V2H(P) SoC is different from the D-PHY on the RZ/G2L SoC. To handle this difference, function pointers for D-PHY enable/disable have been added, and the `struct rzg2l_csi2_info` pointer is passed as OF data. Reviewed-by: Laurent Pinchart Signed-off-by: Lad Prabhakar Signed-off-by: Tommaso Merciai --- Changes since v2: - Moved CRUm_SWAPCTL write of rzv2h_csi2_dphy_enable function under the er= ror check as suggested by LPinchart. - Moved rzv2h_csi2_info after rzv2h_csi2_dphy_enable() as suggested by LPi= nchart - Collected tag. .../platform/renesas/rzg2l-cru/rzg2l-csi2.c | 95 +++++++++++++++++++ 1 file changed, 95 insertions(+) diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/driver= s/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c index e4781105eadc0..9243306e2aa98 100644 --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c @@ -85,6 +85,15 @@ CSIDPHYSKW0_UTIL_DL2_SKW_ADJ(1) | \ CSIDPHYSKW0_UTIL_DL3_SKW_ADJ(1)) =20 +/* DPHY registers on RZ/V2H(P) SoC */ +#define CRUm_S_TIMCTL 0x41c +#define CRUm_S_TIMCTL_S_HSSETTLECTL(x) ((x) << 8) + +#define CRUm_S_DPHYCTL_MSB 0x434 +#define CRUm_S_DPHYCTL_MSB_DESKEW BIT(1) + +#define CRUm_SWAPCTL 0x438 + #define VSRSTS_RETRIES 20 =20 #define RZG2L_CSI2_MIN_WIDTH 320 @@ -140,6 +149,30 @@ struct rzg2l_csi2_timings { u32 max_hsfreq; }; =20 +struct rzv2h_csi2_s_hssettlectl { + unsigned int hsfreq; + u16 s_hssettlectl; +}; + +static const struct rzv2h_csi2_s_hssettlectl rzv2h_s_hssettlectl[] =3D { + { 90, 1 }, { 130, 2 }, { 180, 3 }, + { 220, 4 }, { 270, 5 }, { 310, 6 }, + { 360, 7 }, { 400, 8 }, { 450, 9 }, + { 490, 10 }, { 540, 11 }, { 580, 12 }, + { 630, 13 }, { 670, 14 }, { 720, 15 }, + { 760, 16 }, { 810, 17 }, { 850, 18 }, + { 900, 19 }, { 940, 20 }, { 990, 21 }, + { 1030, 22 }, { 1080, 23 }, { 1120, 24 }, + { 1170, 25 }, { 1220, 26 }, { 1260, 27 }, + { 1310, 28 }, { 1350, 29 }, { 1400, 30 }, + { 1440, 31 }, { 1490, 32 }, { 1530, 33 }, + { 1580, 34 }, { 1620, 35 }, { 1670, 36 }, + { 1710, 37 }, { 1760, 38 }, { 1800, 39 }, + { 1850, 40 }, { 1890, 41 }, { 1940, 42 }, + { 1980, 43 }, { 2030, 44 }, { 2070, 45 }, + { 2100, 46 }, +}; + static const struct rzg2l_csi2_timings rzg2l_csi2_global_timings[] =3D { { .max_hsfreq =3D 80, @@ -434,6 +467,64 @@ static int rzg2l_csi2_mipi_link_disable(struct rzg2l_c= si2 *csi2) return 0; } =20 +static int rzv2h_csi2_dphy_disable(struct rzg2l_csi2 *csi2) +{ + int ret; + + /* Reset the CRU (D-PHY) */ + ret =3D reset_control_assert(csi2->cmn_rstb); + if (ret) + return ret; + + csi2->dphy_enabled =3D false; + + return 0; +} + +static int rzv2h_csi2_dphy_enable(struct rzg2l_csi2 *csi2) +{ + unsigned int i; + u16 hssettle; + int mbps; + + mbps =3D rzg2l_csi2_calc_mbps(csi2); + if (mbps < 0) + return mbps; + + csi2->hsfreq =3D mbps; + + for (i =3D 0; i < ARRAY_SIZE(rzv2h_s_hssettlectl); i++) { + if (csi2->hsfreq <=3D rzv2h_s_hssettlectl[i].hsfreq) + break; + } + + if (i =3D=3D ARRAY_SIZE(rzv2h_s_hssettlectl)) + return -EINVAL; + + rzg2l_csi2_write(csi2, CRUm_SWAPCTL, 0); + + hssettle =3D rzv2h_s_hssettlectl[i].s_hssettlectl; + rzg2l_csi2_write(csi2, CRUm_S_TIMCTL, + CRUm_S_TIMCTL_S_HSSETTLECTL(hssettle)); + + if (csi2->hsfreq > 1500) + rzg2l_csi2_set(csi2, CRUm_S_DPHYCTL_MSB, + CRUm_S_DPHYCTL_MSB_DESKEW); + else + rzg2l_csi2_clr(csi2, CRUm_S_DPHYCTL_MSB, + CRUm_S_DPHYCTL_MSB_DESKEW); + + csi2->dphy_enabled =3D true; + + return 0; +} + +static const struct rzg2l_csi2_info rzv2h_csi2_info =3D { + .dphy_enable =3D rzv2h_csi2_dphy_enable, + .dphy_disable =3D rzv2h_csi2_dphy_disable, + .has_system_clk =3D false, +}; + static int rzg2l_csi2_mipi_link_setting(struct v4l2_subdev *sd, bool on) { struct rzg2l_csi2 *csi2 =3D sd_to_csi2(sd); @@ -910,6 +1001,10 @@ static const struct dev_pm_ops rzg2l_csi2_pm_ops =3D { }; =20 static const struct of_device_id rzg2l_csi2_of_table[] =3D { + { + .compatible =3D "renesas,r9a09g057-csi2", + .data =3D &rzv2h_csi2_info, + }, { .compatible =3D "renesas,rzg2l-csi2", .data =3D &rzg2l_csi2_info, --=20 2.43.0