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Fri, 28 Aug 2026 09:56:24 +0000 From: Changhuang Liang To: Michael Turquette , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stephen Boyd , Brian Masney , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Philipp Zabel , Emil Renner Berthing Cc: Chen Wang , Inochi Amaoto , Alexey Charkov , Thomas Bogendoerfer , Keguang Zhang , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, Changhuang Liang , Hal Feng Subject: [PATCH v5 3/8] clk: starfive: Add peripheral-0 domain PLL clock driver Date: Fri, 28 Aug 2026 02:56:03 -0700 Message-Id: <20260828095608.19955-4-changhuang.liang@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260828095608.19955-1-changhuang.liang@starfivetech.com> References: <20260828095608.19955-1-changhuang.liang@starfivetech.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: NT0PR01CA0028.CHNPR01.prod.partner.outlook.cn (2406:e500:c510:c::15) To ZQ4PR01MB1202.CHNPR01.prod.partner.outlook.cn (2406:e500:c550:17::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: ZQ4PR01MB1202:EE_|ZQ4PR01MB1203:EE_ X-MS-Office365-Filtering-Correlation-Id: e699d0e7-bed6-4ac9-f5bf-08df04ea9ed1 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|52116014|1800799024|376014|23010399003|366016|56012099006|10067099003|18002099003|22082099003|38350700014|921020; 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Signed-off-by: Changhuang Liang Reviewed-by: Xingyu Wu --- .../clk/starfive/clk-starfive-jhb100-pll.c | 60 +++++++++++++++---- 1 file changed, 50 insertions(+), 10 deletions(-) diff --git a/drivers/clk/starfive/clk-starfive-jhb100-pll.c b/drivers/clk/starfive/clk-starfive-jhb100-pll.c index e23365164497..f6ebaaf5aa18 100644 --- a/drivers/clk/starfive/clk-starfive-jhb100-pll.c +++ b/drivers/clk/starfive/clk-starfive-jhb100-pll.c @@ -30,6 +30,9 @@ #define JHB100_PLL4_OFFSET 0x18 #define JHB100_PLL5_OFFSET 0x24 +/* Peripheral-0 domain PLL */ +#define JHB100_PLL6_OFFSET 0x00 + #define JHB100_PLL_CFG0_OFFSET 0x0 #define JHB100_PLL_CFG1_OFFSET 0x4 #define JHB100_PLL_CFG2_OFFSET 0x8 @@ -417,16 +420,21 @@ static int jhb100_pll_probe(struct platform_device *pdev) unsigned int idx; int ret; - id = platform_get_device_id(pdev); - if (!id) - return dev_err_probe(dev, -EINVAL, "no match data\n"); - - /* - * Instantiated as an MFD cell of the sys0 system controller, - * which owns the DT node describing the PLL registers. - */ - match_data = (const struct jhb100_pll_match_data *)id->driver_data; - np = dev_of_node(dev->parent); + match_data = device_get_match_data(dev); + if (match_data) { + np = dev_of_node(dev); + } else { + id = platform_get_device_id(pdev); + if (!id) + return dev_err_probe(dev, -EINVAL, "no match data\n"); + + /* + * Instantiated as an MFD cell of the sys0 system controller, + * which owns the DT node describing the PLL registers. + */ + match_data = (const struct jhb100_pll_match_data *)id->driver_data; + np = dev_of_node(dev->parent); + } priv = devm_kzalloc(&pdev->dev, struct_size(priv, pll, match_data->num_pll), GFP_KERNEL); @@ -504,6 +512,28 @@ static const struct jhb100_pll_match_data jhb100_sys0_pll = { .num_pll = ARRAY_SIZE(jhb100_sys0_pll_info), }; +static const struct jhb100_pll_preset jhb100_pll6_presets[] = { + { + .freq = 2400000000, + .fbdiv = 192, + .frac = 0, + .refdiv = 1, + .postdiv = 0, + .foutpostdiv_en = 1, + .foutvcop_en = 0, + }, +}; + +static const struct jhb100_pll_info jhb100_per0_pll_info[] = { + JHB100_PLL(JHB100_PER0PLL_PLL6_OUT, "pll6_out", jhb100_pll6_presets, + ARRAY_SIZE(jhb100_pll6_presets), JHB100_PLL6_OFFSET, false), +}; + +static const struct jhb100_pll_match_data jhb100_per0_pll = { + .pll_info = jhb100_per0_pll_info, + .num_pll = ARRAY_SIZE(jhb100_per0_pll_info), +}; + static const struct platform_device_id jhb100_pll_ids[] = { { .name = "jhb100-sys0-pll", @@ -513,11 +543,21 @@ static const struct platform_device_id jhb100_pll_ids[] = { }; MODULE_DEVICE_TABLE(platform, jhb100_pll_ids); +static const struct of_device_id jhb100_pll_match[] = { + { + .compatible = "starfive,jhb100-per0-syscon", + .data = &jhb100_per0_pll, + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, jhb100_pll_match); + static struct platform_driver jhb100_pll_driver = { .probe = jhb100_pll_probe, .id_table = jhb100_pll_ids, .driver = { .name = "clk-starfive-jhb100-pll", + .of_match_table = jhb100_pll_match, .suppress_bind_attrs = true, }, }; -- 2.25.1