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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240729-clk-u64-v2-2-ffa62ee437e6@nxp.com> References: <20240729-clk-u64-v2-0-ffa62ee437e6@nxp.com> In-Reply-To: <20240729-clk-u64-v2-0-ffa62ee437e6@nxp.com> To: Rob Herring , Saravana Kannan , Michael Turquette , Stephen Boyd , Luca Ceresoli Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, Peng Fan X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1722220263; l=3649; i=peng.fan@nxp.com; s=20230812; h=from:subject:message-id; bh=K25e/IwCaHk/VnfjjVO7hUUmnIl5zCnqg1J7sgDRSfI=; b=94BPFdDFZ3u2K7BYWoMG/KL+zR/aaEwwqLDU95lJ20oO9PXtUMF8EMBoZHDLiP1dpIzh5YQc3 ZSWeL13eA71Ci+5d0Jcs4twizC0ant0mn+zIXyLY1gdloCklqsT50+K X-Developer-Key: i=peng.fan@nxp.com; a=ed25519; pk=I4sJg7atIT1g63H7bb5lDRGR2gJW14RKDD0wFL8TT1g= X-ClientProxiedBy: SG2PR02CA0001.apcprd02.prod.outlook.com (2603:1096:3:17::13) To PAXPR04MB8459.eurprd04.prod.outlook.com (2603:10a6:102:1da::15) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB8459:EE_|DBAPR04MB7368:EE_ X-MS-Office365-Filtering-Correlation-Id: 5187f2b9-81fb-48f6-c8c1-08dcaf753b66 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|52116014|376014|38350700014; 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So add assigned-clock-rates-u64 support to set rate that exceeds UINT32_MAX. Signed-off-by: Peng Fan --- drivers/clk/clk-conf.c | 104 ++++++++++++++++++++++++++++++++++-----------= ---- 1 file changed, 73 insertions(+), 31 deletions(-) diff --git a/drivers/clk/clk-conf.c b/drivers/clk/clk-conf.c index 058420562020..37b72600b296 100644 --- a/drivers/clk/clk-conf.c +++ b/drivers/clk/clk-conf.c @@ -78,47 +78,89 @@ static int __set_clk_parents(struct device_node *node, = bool clk_supplier) return rc; } =20 -static int __set_clk_rates(struct device_node *node, bool clk_supplier) +static int __set_clk_rate(struct device_node *node, bool clk_supplier, int= index, + unsigned long rate) { struct of_phandle_args clkspec; - int rc, index =3D 0; struct clk *clk; - u32 rate; + int rc; =20 - of_property_for_each_u32(node, "assigned-clock-rates", rate) { - if (rate) { - rc =3D of_parse_phandle_with_args(node, "assigned-clocks", + rc =3D of_parse_phandle_with_args(node, "assigned-clocks", "#clock-cells", index, &clkspec); - if (rc < 0) { - /* skip empty (null) phandles */ - if (rc =3D=3D -ENOENT) - continue; - else - return rc; - } - if (clkspec.np =3D=3D node && !clk_supplier) { - of_node_put(clkspec.np); - return 0; - } + if (rc < 0) + return rc; =20 - clk =3D of_clk_get_from_provider(&clkspec); - of_node_put(clkspec.np); - if (IS_ERR(clk)) { - if (PTR_ERR(clk) !=3D -EPROBE_DEFER) - pr_warn("clk: couldn't get clock %d for %pOF\n", - index, node); - return PTR_ERR(clk); + if (clkspec.np =3D=3D node && !clk_supplier) { + of_node_put(clkspec.np); + return 1; + } + + clk =3D of_clk_get_from_provider(&clkspec); + of_node_put(clkspec.np); + if (IS_ERR(clk)) { + if (PTR_ERR(clk) !=3D -EPROBE_DEFER) + pr_warn("clk: couldn't get clock %d for %pOF\n", + index, node); + return PTR_ERR(clk); + } + + rc =3D clk_set_rate(clk, rate); + if (rc < 0) + pr_err("clk: couldn't set %s clk rate to %lu (%d), current rate: %lu\n", + __clk_get_name(clk), rate, rc, clk_get_rate(clk)); + clk_put(clk); + + return 0; +} + +static int __set_clk_rates(struct device_node *node, bool clk_supplier) +{ + int rc, index =3D 0; + u64 rate; + u32 rate_32; + bool is_rate_32 =3D false; + + if (!of_find_property(node, "assigned-clock-rates-u64", NULL)) + is_rate_32 =3D true; + + if (is_rate_32) { + of_property_for_each_u32(node, "assigned-clock-rates", rate_32) { + if (rate_32) { + rc =3D __set_clk_rate(node, clk_supplier, index, rate_32); + + if (rc =3D=3D 1 && !clk_supplier) + return 0; + + if (rc < 0) { + /* skip empty (null) phandles */ + if (rc =3D=3D -ENOENT) + continue; + else + return rc; + } } + index++; + } + } else { + of_property_for_each_u64(node, "assigned-clock-rates-u64", rate) { + if (rate) { + rc =3D __set_clk_rate(node, clk_supplier, index, rate); =20 - rc =3D clk_set_rate(clk, rate); - if (rc < 0) - pr_err("clk: couldn't set %s clk rate to %u (%d), current rate: %lu\n", - __clk_get_name(clk), rate, rc, - clk_get_rate(clk)); - clk_put(clk); + if (rc =3D=3D 1 && !clk_supplier) + return 0; + + if (rc < 0) { + /* skip empty (null) phandles */ + if (rc =3D=3D -ENOENT) + continue; + else + return rc; + } + } + index++; } - index++; } + return 0; } =20 --=20 2.37.1