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Dong" To: "linux-clk@vger.kernel.org" Subject: [PATCH V6 8/9] clk: imx: implement new clk_hw based APIs Thread-Topic: [PATCH V6 8/9] clk: imx: implement new clk_hw based APIs Thread-Index: AQHUfBo9jbT+xNSQsUSnAwc8nkoIQg== Date: Wed, 14 Nov 2018 13:02:04 +0000 Message-ID: <1542200198-3017-9-git-send-email-aisheng.dong@nxp.com> References: <1542200198-3017-1-git-send-email-aisheng.dong@nxp.com> In-Reply-To: <1542200198-3017-1-git-send-email-aisheng.dong@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK0PR01CA0057.apcprd01.prod.exchangelabs.com (2603:1096:203:a6::21) To AM0PR04MB4211.eurprd04.prod.outlook.com (2603:10a6:208:66::21) authentication-results: spf=none (sender IP is ) smtp.mailfrom=aisheng.dong@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [119.31.174.66] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; AM0PR04MB5985; 6:+XtNbRyrOJDDUnbnl8n8ystBGjjMxnL07JO6bauiGCBgbNqr6s8FAVJgsBGhjV6aUqq3i/XeJLO/aGz/FTXUVOAsV1VDweCJpPZjPA49iRZouPN9m+AB4BYE1pqpfoXfWBYvRL5njt9EEcKG7KL/2v7hQFaQ9ctAxATO4Y6gYlD3lzxbRH3ibdKyStaWuejnX/vIJ8kIrw7AjcuHHi7+OAU0DyaLNLIgr+O6kI2YGcGr+if9TuL0pjsILyr+GNEsE6asHDy+pU4BxkZk8Avefbj+AhrdPmpKFboEJiwLHoR39uhxSL4c/rbOFxqvS+dpsyjItwPvFAT3dJnoFuG3Ck5U5reM35GtCsa/lx6gZIXIr+UuKmND8xGCk9AR6eGtvJWO32Qo8Wlrp4+kfZeLEgBFC3ALtNd4D4pIj2WatV5vBGJlPDvmaQinFKOVrr+PtRXYXbtTwnB816EzUNeIqg==; 5:XNhK8RJILWWfdM9E2lNM7FOxwEqWHvpx9phTMFrlHuyjaXA5GRY/u8xnGokZ5AdhfuaEjvzXrI9qSKJ45dQR2G/tcjumpT73x4dIVaolvaZkr/XMYFHAi4plyYrkXoy9LRU0fMw/bP0gRsByFJrC2zQ5HT0nNvTEkK26EClimkA=; 7:ETMpkgLJbyshKGSKtpzPeXzDSev5kK5cbIQihE0uZvxQPRYQoSoyoonlA7xO5QLtTLheOfL2JJXapJNm8mXZ+IlSz3lQg4UczxnrqKFIdEaHZbKzlumgCWu0uppTneXf9yxZIB2iD8rBiiHJevkOKg== x-ms-office365-filtering-correlation-id: 7ed9a4f8-f527-44a7-ce35-08d64a315f9b x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390098)(7020095)(4652040)(8989299)(5600074)(711020)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7153060)(7193020); SRVR:AM0PR04MB5985; x-ms-traffictypediagnostic: AM0PR04MB5985: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(185117386973197); x-ms-exchange-senderadcheck: 1 x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(8211001083)(6040522)(2401047)(8121501046)(5005006)(3231382)(944501410)(52105112)(3002001)(10201501046)(93006095)(93001095)(6055026)(148016)(149066)(150057)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123558120)(20161123562045)(20161123564045)(20161123560045)(201708071742011)(7699051)(76991095); SRVR:AM0PR04MB5985; BCL:0; PCL:0; RULEID:; SRVR:AM0PR04MB5985; x-forefront-prvs: 085634EFF4 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(136003)(346002)(396003)(366004)(39860400002)(376002)(54534003)(189003)(199004)(6916009)(305945005)(316002)(446003)(54906003)(476003)(14454004)(2616005)(68736007)(5660300001)(11346002)(53936002)(14444005)(8676002)(486006)(105586002)(7736002)(256004)(186003)(25786009)(4326008)(2906002)(99286004)(6512007)(6116002)(52116002)(81156014)(66066001)(81166006)(3846002)(76176011)(5640700003)(50226002)(386003)(6506007)(102836004)(71200400001)(71190400001)(26005)(86362001)(106356001)(2351001)(2900100001)(2501003)(6436002)(6486002)(97736004)(8936002)(36756003)(478600001); DIR:OUT; SFP:1101; SCL:1; SRVR:AM0PR04MB5985; H:AM0PR04MB4211.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: y6Hz6jclZKCOJIeGinbI20ezF9DACdURvGOcCM1Iqop3KSJ2jPFLIsZ0+3kCy7v30UDBu5yrJcna7mNqQlNEpiap63N++N0wFUCrWvJNaw/5G36Z97coEXCTTWck6xbSO+lWUeL5s5TiMYBcENPGBYsUAgeBJvDTbhGmo5CJQkZvANFDzzVfadZ4IcoS3EaMo7uhYdVjuRsSnEkX63oKY55hEGEp8FblLDqHfuWxPOwxKGx6qE3PY+cqYfhmz93zDBXo8XrsfRj92raHvG53f1ZohmxVlTfTbO0uBd4IeHHS7iA0Y9yfPntSXJXvrxSkVXsSkhqwqKxVaPAjUEf+yOJTe4xlZeTJj4HMRcJiF/w= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7ed9a4f8-f527-44a7-ce35-08d64a315f9b X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Nov 2018 13:02:04.0605 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB5985 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181114_050225_547871_BD459F8C X-CRM114-Status: GOOD ( 13.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "A.s. Dong" , Jacky Bai , Anson Huang , "sboyd@kernel.org" , "mturquette@baylibre.com" , "linux-kernel@vger.kernel.org" , dl-linux-imx , "shawnguo@kernel.org" , "linux-arm-kernel@lists.infradead.org" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Clock providers are recommended to use the new struct clk_hw based API, so implement IMX clk_hw based provider helpers functions to the new approach. Signed-off-by: Dong Aisheng --- ChangeLog: v2->v4: * no changes v1->v2: new patches --- drivers/clk/imx/clk.c | 22 ++++++++++++++++++ drivers/clk/imx/clk.h | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 84 insertions(+) diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c index 9074e69..1efed86 100644 --- a/drivers/clk/imx/clk.c +++ b/drivers/clk/imx/clk.c @@ -18,6 +18,16 @@ void __init imx_check_clocks(struct clk *clks[], unsigned int count) i, PTR_ERR(clks[i])); } +void imx_check_clk_hws(struct clk_hw *clks[], unsigned int count) +{ + unsigned int i; + + for (i = 0; i < count; i++) + if (IS_ERR(clks[i])) + pr_err("i.MX clk %u: register failed with %ld\n", + i, PTR_ERR(clks[i])); +} + static struct clk * __init imx_obtain_fixed_clock_from_dt(const char *name) { struct of_phandle_args phandle; @@ -49,6 +59,18 @@ struct clk * __init imx_obtain_fixed_clock( return clk; } +struct clk_hw * __init imx_obtain_fixed_clk_hw(struct device_node *np, + const char *name) +{ + struct clk *clk; + + clk = of_clk_get_by_name(np, name); + if (IS_ERR(clk)) + return ERR_PTR(-ENOENT); + + return __clk_get_hw(clk); +} + /* * This fixups the register CCM_CSCMR1 write value. * The write/read/divider values of the aclk_podf field diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h index 3886979..cf0596d 100644 --- a/drivers/clk/imx/clk.h +++ b/drivers/clk/imx/clk.h @@ -8,6 +8,7 @@ extern spinlock_t imx_ccm_lock; void imx_check_clocks(struct clk *clks[], unsigned int count); +void imx_check_clk_hws(struct clk_hw *clks[], unsigned int count); void imx_register_uart_clocks(struct clk ** const clks[]); extern void imx_cscmr1_fixup(u32 *val); @@ -54,6 +55,9 @@ struct clk *clk_register_gate2(struct device *dev, const char *name, struct clk * imx_obtain_fixed_clock( const char *name, unsigned long rate); +struct clk_hw *imx_obtain_fixed_clk_hw(struct device_node *np, + const char *name); + struct clk *imx_clk_gate_exclusive(const char *name, const char *parent, void __iomem *reg, u8 shift, u32 exclusive_mask); @@ -90,6 +94,16 @@ static inline struct clk *imx_clk_fixed(const char *name, int rate) return clk_register_fixed_rate(NULL, name, NULL, 0, rate); } +static inline struct clk_hw *imx_clk_hw_fixed(const char *name, int rate) +{ + return clk_hw_register_fixed_rate(NULL, name, NULL, 0, rate); +} + +static inline struct clk_hw *imx_get_clk_hw_fixed(const char *name, int rate) +{ + return clk_hw_register_fixed_rate(NULL, name, NULL, 0, rate); +} + static inline struct clk *imx_clk_mux_ldb(const char *name, void __iomem *reg, u8 shift, u8 width, const char * const *parents, int num_parents) @@ -113,6 +127,15 @@ static inline struct clk *imx_clk_divider(const char *name, const char *parent, reg, shift, width, 0, &imx_ccm_lock); } +static inline struct clk_hw *imx_clk_hw_divider(const char *name, + const char *parent, + void __iomem *reg, u8 shift, + u8 width) +{ + return clk_hw_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT, + reg, shift, width, 0, &imx_ccm_lock); +} + static inline struct clk *imx_clk_divider_flags(const char *name, const char *parent, void __iomem *reg, u8 shift, u8 width, unsigned long flags) @@ -121,6 +144,15 @@ static inline struct clk *imx_clk_divider_flags(const char *name, reg, shift, width, 0, &imx_ccm_lock); } +static inline struct clk_hw *imx_clk_hw_divider_flags(const char *name, + const char *parent, + void __iomem *reg, u8 shift, + u8 width, unsigned long flags) +{ + return clk_hw_register_divider(NULL, name, parent, flags, + reg, shift, width, 0, &imx_ccm_lock); +} + static inline struct clk *imx_clk_divider2(const char *name, const char *parent, void __iomem *reg, u8 shift, u8 width) { @@ -143,6 +175,13 @@ static inline struct clk *imx_clk_gate_flags(const char *name, const char *paren shift, 0, &imx_ccm_lock); } +static inline struct clk_hw *imx_clk_hw_gate(const char *name, const char *parent, + void __iomem *reg, u8 shift) +{ + return clk_hw_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg, + shift, 0, &imx_ccm_lock); +} + static inline struct clk *imx_clk_gate_dis(const char *name, const char *parent, void __iomem *reg, u8 shift) { @@ -222,6 +261,17 @@ static inline struct clk *imx_clk_mux2(const char *name, void __iomem *reg, reg, shift, width, 0, &imx_ccm_lock); } +static inline struct clk_hw *imx_clk_hw_mux2(const char *name, void __iomem *reg, + u8 shift, u8 width, + const char * const *parents, + int num_parents) +{ + return clk_hw_register_mux(NULL, name, parents, num_parents, + CLK_SET_RATE_NO_REPARENT | + CLK_OPS_PARENT_ENABLE, + reg, shift, width, 0, &imx_ccm_lock); +} + static inline struct clk *imx_clk_mux_flags(const char *name, void __iomem *reg, u8 shift, u8 width, const char * const *parents, int num_parents, @@ -232,6 +282,18 @@ static inline struct clk *imx_clk_mux_flags(const char *name, &imx_ccm_lock); } +static inline struct clk_hw *imx_clk_hw_mux_flags(const char *name, + void __iomem *reg, u8 shift, + u8 width, + const char * const *parents, + int num_parents, + unsigned long flags) +{ + return clk_hw_register_mux(NULL, name, parents, num_parents, + flags | CLK_SET_RATE_NO_REPARENT, + reg, shift, width, 0, &imx_ccm_lock); +} + struct clk *imx_clk_cpu(const char *name, const char *parent_name, struct clk *div, struct clk *mux, struct clk *pll, struct clk *step);