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bh=lOVT8JcVhywIun/ufQo23wkM/6jwfTIcZ5NZycCPH9I=; b=d7tQ08LiDC1pAWKxlJg0PlsDI7b/7HTqJOPD1gtK7SgeMKLzuuy5Rwv/U/qSURyQhB5nBS9GOf3Jc50AGxeCr9NZiXp9+++0PsruwV2uvyHC0zMcsLIhjq4w6NLIKenY8NtkEUJjpf28fMLK5aGU7N08hqBLKixYWnuEmqAG1nY= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=bp.renesas.com; Received: from TYCPR01MB11947.jpnprd01.prod.outlook.com (2603:1096:400:3e1::6) by TYCPR01MB6804.jpnprd01.prod.outlook.com (2603:1096:400:b3::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9366.12; Wed, 26 Nov 2025 14:10:12 +0000 Received: from TYCPR01MB11947.jpnprd01.prod.outlook.com ([fe80::33f1:f7cd:46be:e4d8]) by TYCPR01MB11947.jpnprd01.prod.outlook.com ([fe80::33f1:f7cd:46be:e4d8%5]) with mapi id 15.20.9366.009; Wed, 26 Nov 2025 14:10:12 +0000 From: Tommaso Merciai To: tomm.merciai@gmail.com Cc: linux-renesas-soc@vger.kernel.org, biju.das.jz@bp.renesas.com, Tommaso Merciai , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Michael Turquette , Stephen Boyd , Magnus Damm , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH 13/22] drm: renesas: rz-du: mipi_dsi: Add support for RZ/G3E Date: Wed, 26 Nov 2025 15:07:25 +0100 Message-ID: <668681c33d472d02c2ea0879c034bff522c290ee.1764165783.git.tommaso.merciai.xr@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: FR4P281CA0143.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:b8::14) To TYCPR01MB11947.jpnprd01.prod.outlook.com (2603:1096:400:3e1::6) 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: TYCPR01MB11947:EE_|TYCPR01MB6804:EE_ X-MS-Office365-Filtering-Correlation-Id: 5dac45d4-7c08-4d1d-f6df-08de2cf583be 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|376014|1800799024|366016|52116014|7416014|38350700014; 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charset="utf-8" Add MIPI DSI support for the Renesas RZ/G3E SoC. RZ/V2H(P) and RZ/G3E share identical PLLDSI divider constraints from the DSI PHY perspective, so both can reuse the existing rzv2h_plldsi_div_limits structure. However, at the CPG level the limits differ: - PLLDSI0 limits apply when vclk1 is used. - PLLDSI1 limits apply when vclk2 is used. To support this introduce rzg3e_plldsis_limits for RZ/G3E SoC. During rzv2h_dphy_mode_clk_check(), the appropriate limits are selected dynamically based on vclk_idx, which reflects the currently selected vclk. Signed-off-by: Tommaso Merciai --- .../gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 33 ++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/d= rm/renesas/rz-du/rzg2l_mipi_dsi.c index 59125460cf57..f37c081f7642 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c @@ -590,7 +590,7 @@ static unsigned int rzv2h_dphy_mode_clk_check(struct rz= g2l_mipi_dsi *dsi, mode_freq_hz =3D mul_u32_u32(mode_freq, KILO); mode_freq_millihz =3D mode_freq_hz * MILLI; parameters_found =3D - rzv2h_get_pll_divs_pars(dsi->info->cpg_plldsi.limits[0], + rzv2h_get_pll_divs_pars(dsi->info->cpg_plldsi.limits[dsi->vclk_idx], &cpg_dsi_parameters, dsi->info->cpg_plldsi.table, dsi->info->cpg_plldsi.table_size, @@ -1535,6 +1535,36 @@ static void rzg2l_mipi_dsi_remove(struct platform_de= vice *pdev) pm_runtime_disable(&pdev->dev); } =20 +RZG3E_CPG_PLL_DSI0_LIMITS(rzg3e_cpg_pll_dsi0_limits); +RZG3E_CPG_PLL_DSI1_LIMITS(rzg3e_cpg_pll_dsi1_limits); + +static const struct rzv2h_pll_limits *rzg3e_plldsis_limits[] =3D { + &rzg3e_cpg_pll_dsi0_limits, + &rzg3e_cpg_pll_dsi1_limits, +}; + +static const u8 rzg3e_cpg_div_table[] =3D { + 2, 4, 6, 8, 10, 12, 14, 16, +}; + +static struct rzg2l_mipi_dsi_hw_info rzg3e_mipi_dsi_info =3D { + .dphy_init =3D rzv2h_mipi_dsi_dphy_init, + .dphy_startup_late_init =3D rzv2h_mipi_dsi_dphy_startup_late_init, + .dphy_exit =3D rzv2h_mipi_dsi_dphy_exit, + .dphy_mode_clk_check =3D rzv2h_dphy_mode_clk_check, + .dphy_conf_clks =3D rzv2h_dphy_conf_clks, + .cpg_plldsi.limits =3D rzg3e_plldsis_limits, + .cpg_plldsi.table =3D rzg3e_cpg_div_table, + .cpg_plldsi.table_size =3D ARRAY_SIZE(rzg3e_cpg_div_table), + .phy_reg_offset =3D 0x10000, + .link_reg_offset =3D 0, + .min_dclk =3D 5440, + .max_dclk =3D 187500, + .out_port =3D 2, + .features =3D RZ_MIPI_DSI_FEATURE_16BPP | + RZ_MIPI_DSI_FEATURE_GPO0R, +}; + RZV2H_CPG_PLL_DSI_LIMITS(rzv2h_cpg_pll_dsi_limits); =20 static const struct rzv2h_pll_limits *rzv2h_plldsi_limits[] =3D { @@ -1573,6 +1603,7 @@ static const struct rzg2l_mipi_dsi_hw_info rzg2l_mipi= _dsi_info =3D { }; =20 static const struct of_device_id rzg2l_mipi_dsi_of_table[] =3D { + { .compatible =3D "renesas,r9a09g047-mipi-dsi", .data =3D &rzg3e_mipi_dsi= _info, }, { .compatible =3D "renesas,r9a09g057-mipi-dsi", .data =3D &rzv2h_mipi_dsi= _info, }, { .compatible =3D "renesas,rzg2l-mipi-dsi", .data =3D &rzg2l_mipi_dsi_inf= o, }, { /* sentinel */ } --=20 2.43.0