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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: claudiu.beznea@gmail.com, Claudiu.Beznea@microchip.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.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 From: Claudiu Beznea Add support to free slow oscillator resources. Signed-off-by: Claudiu Beznea --- drivers/clk/at91/sckc.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index 2c410f41b413..c1d7edd33416 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -166,6 +166,14 @@ at91_clk_register_slow_osc(void __iomem *sckcr, return hw; } +static void at91_clk_unregister_slow_osc(struct clk_hw *hw) +{ + struct clk_slow_osc *osc = to_clk_slow_osc(hw); + + clk_hw_unregister(hw); + kfree(osc); +} + static unsigned long clk_slow_rc_osc_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { From patchwork Thu Jun 13 15:37:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 10992441 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D5EE714BB for ; Thu, 13 Jun 2019 15:37:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C21DB1FE8E for ; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: claudiu.beznea@gmail.com, Claudiu.Beznea@microchip.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.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 From: Claudiu Beznea Add support to free slow rc oscillator resources. Signed-off-by: Claudiu Beznea --- drivers/clk/at91/sckc.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index c1d7edd33416..492b139a7c15 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -268,6 +268,14 @@ at91_clk_register_slow_rc_osc(void __iomem *sckcr, return hw; } +static void at91_clk_unregister_slow_rc_osc(struct clk_hw *hw) +{ + struct clk_slow_rc_osc *osc = to_clk_slow_rc_osc(hw); + + clk_hw_unregister(hw); + kfree(osc); +} + static int clk_sam9x5_slow_set_parent(struct clk_hw *hw, u8 index) { struct clk_sam9x5_slow *slowck = to_clk_sam9x5_slow(hw); From patchwork Thu Jun 13 15:37:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 10992451 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 053AF14BB for ; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: claudiu.beznea@gmail.com, Claudiu.Beznea@microchip.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.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 From: Claudiu Beznea Add support to free slow clock oscillator resources. Signed-off-by: Claudiu Beznea --- drivers/clk/at91/sckc.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index 492b139a7c15..2a677c56f901 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -355,6 +355,14 @@ at91_clk_register_sam9x5_slow(void __iomem *sckcr, return hw; } +static void at91_clk_unregister_sam9x5_slow(struct clk_hw *hw) +{ + struct clk_sam9x5_slow *slowck = to_clk_sam9x5_slow(hw); + + clk_hw_unregister(hw); + kfree(slowck); +} + static void __init at91sam9x5_sckc_register(struct device_node *np, unsigned int rc_osc_startup_us, const struct clk_slow_bits *bits) From patchwork Thu Jun 13 15:37:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 10992457 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 911FB14BB for ; 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FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: microchip.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: OzBln7AzC8fe2ZkTuP3b8BL4hoGJkFOnvT0zAaN2uNittqDJ4xvJt+2LMFSJ5i0eEf9SLPl6aF3z5lhATn1IgHalKdMySUPySLzR367v4WbJRgqwDqfuqcyAByEiacAgmSpwBymbtEtzo+ncSwNLAqIQBY2OAKeMAvMRtj1iOGxV8dyQPq7puGflsog1iBPGN/q45630C4uimgGxxppUyI8aCKBKBtZrgC/E2SPaXUajfRc+N03fmV98YetQ0RHKC8rURXI4php6CEn1ToalkiuQF3Is2vQxmaUfEMlPg8EQgXhno9dERmwMQ9vcuRs889G30lqrUqQVAoAPfyUyC5Xeyq4lynh54gJI+dyreTKTjWTxk4mYInITKdfzAPJz0CNsiXDRXNavqNxhV9c1QrKf3JRLJXLTSrj8fGgzuu0= MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 5f53fef9-a73d-4d6f-a092-08d6f0150507 X-MS-Exchange-CrossTenant-originalarrivaltime: 13 Jun 2019 15:37:19.1411 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: claudiu.beznea@microchip.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR11MB1822 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190613_083722_857075_4B34F68C X-CRM114-Status: GOOD ( 10.67 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: claudiu.beznea@gmail.com, Claudiu.Beznea@microchip.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.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 From: Claudiu Beznea Improve error path for sam9x5 slow clock registration. Signed-off-by: Claudiu Beznea --- drivers/clk/at91/sckc.c | 50 +++++++++++++++++++++++++++++++------------------ 1 file changed, 32 insertions(+), 18 deletions(-) diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index 2a677c56f901..a2b905c91085 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -371,16 +371,17 @@ static void __init at91sam9x5_sckc_register(struct device_node *np, void __iomem *regbase = of_iomap(np, 0); struct device_node *child = NULL; const char *xtal_name; - struct clk_hw *hw; + struct clk_hw *slow_rc, *slow_osc, *slowck; bool bypass; + int ret; if (!regbase) return; - hw = at91_clk_register_slow_rc_osc(regbase, parent_names[0], 32768, - 50000000, rc_osc_startup_us, - bits); - if (IS_ERR(hw)) + slow_rc = at91_clk_register_slow_rc_osc(regbase, parent_names[0], + 32768, 50000000, + rc_osc_startup_us, bits); + if (IS_ERR(slow_rc)) return; xtal_name = of_clk_get_parent_name(np, 0); @@ -388,7 +389,7 @@ static void __init at91sam9x5_sckc_register(struct device_node *np, /* DT backward compatibility */ child = of_get_compatible_child(np, "atmel,at91sam9x5-clk-slow-osc"); if (!child) - return; + goto unregister_slow_rc; xtal_name = of_clk_get_parent_name(child, 0); bypass = of_property_read_bool(child, "atmel,osc-bypass"); @@ -399,23 +400,36 @@ static void __init at91sam9x5_sckc_register(struct device_node *np, } if (!xtal_name) - return; - - hw = at91_clk_register_slow_osc(regbase, parent_names[1], xtal_name, - 1200000, bypass, bits); - if (IS_ERR(hw)) - return; + goto unregister_slow_rc; - hw = at91_clk_register_sam9x5_slow(regbase, "slowck", parent_names, 2, - bits); - if (IS_ERR(hw)) - return; + slow_osc = at91_clk_register_slow_osc(regbase, parent_names[1], + xtal_name, 1200000, bypass, bits); + if (IS_ERR(slow_osc)) + goto unregister_slow_rc; - of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw); + slowck = at91_clk_register_sam9x5_slow(regbase, "slowck", parent_names, + 2, bits); + if (IS_ERR(slowck)) + goto unregister_slow_osc; /* DT backward compatibility */ if (child) - of_clk_add_hw_provider(child, of_clk_hw_simple_get, hw); + ret = of_clk_add_hw_provider(child, of_clk_hw_simple_get, + slowck); + else + ret = of_clk_add_hw_provider(np, of_clk_hw_simple_get, slowck); + + if (WARN_ON(ret)) + goto unregister_slowck; + + return; + +unregister_slowck: + at91_clk_unregister_sam9x5_slow(slowck); +unregister_slow_osc: + at91_clk_unregister_slow_osc(slow_osc); +unregister_slow_rc: + at91_clk_unregister_slow_rc_osc(slow_rc); } static const struct clk_slow_bits at91sam9x5_bits = { From patchwork Thu Jun 13 15:37:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 10992467 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CB3CC13AD for ; Thu, 13 Jun 2019 15:38:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B6E7E1FFCD for ; Thu, 13 Jun 2019 15:38:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AB09C20243; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: claudiu.beznea@gmail.com, Claudiu.Beznea@microchip.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.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 From: Claudiu Beznea Remove unnecessary line. Signed-off-by: Claudiu Beznea --- drivers/clk/at91/sckc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index a2b905c91085..c61b6c9ddb94 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -601,7 +601,6 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np) osc->startup_usec = 1200000; osc->bits = &at91sama5d4_bits; - hw = &osc->hw; ret = clk_hw_register(NULL, &osc->hw); if (ret) { kfree(osc); From patchwork Thu Jun 13 15:37:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 10992471 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 59E4313AD for ; Thu, 13 Jun 2019 15:39:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 441A11FFCD for ; 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Signed-off-by: Claudiu Beznea --- drivers/clk/at91/sckc.c | 43 ++++++++++++++++++++++++++++--------------- 1 file changed, 28 insertions(+), 15 deletions(-) diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index c61b6c9ddb94..f7ad3e9414dc 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -568,7 +568,7 @@ static const struct clk_slow_bits at91sama5d4_bits = { static void __init of_sama5d4_sckc_setup(struct device_node *np) { void __iomem *regbase = of_iomap(np, 0); - struct clk_hw *hw; + struct clk_hw *slow_rc, *slowck; struct clk_sama5d4_slow_osc *osc; struct clk_init_data init; const char *xtal_name; @@ -578,17 +578,18 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np) if (!regbase) return; - hw = clk_hw_register_fixed_rate_with_accuracy(NULL, parent_names[0], - NULL, 0, 32768, - 250000000); - if (IS_ERR(hw)) + slow_rc = clk_hw_register_fixed_rate_with_accuracy(NULL, + parent_names[0], + NULL, 0, 32768, + 250000000); + if (IS_ERR(slow_rc)) return; xtal_name = of_clk_get_parent_name(np, 0); osc = kzalloc(sizeof(*osc), GFP_KERNEL); if (!osc) - return; + goto unregister_slow_rc; init.name = parent_names[1]; init.ops = &sama5d4_slow_osc_ops; @@ -602,17 +603,29 @@ static void __init of_sama5d4_sckc_setup(struct device_node *np) osc->bits = &at91sama5d4_bits; ret = clk_hw_register(NULL, &osc->hw); - if (ret) { - kfree(osc); - return; - } + if (ret) + goto free_slow_osc_data; - hw = at91_clk_register_sam9x5_slow(regbase, "slowck", parent_names, 2, - &at91sama5d4_bits); - if (IS_ERR(hw)) - return; + slowck = at91_clk_register_sam9x5_slow(regbase, "slowck", + parent_names, 2, + &at91sama5d4_bits); + if (IS_ERR(slowck)) + goto unregister_slow_osc; - of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw); + ret = of_clk_add_hw_provider(np, of_clk_hw_simple_get, slowck); + if (WARN_ON(ret)) + goto unregister_slowck; + + return; + +unregister_slowck: + at91_clk_unregister_sam9x5_slow(slowck); +unregister_slow_osc: + clk_hw_unregister(&osc->hw); +free_slow_osc_data: + kfree(osc); +unregister_slow_rc: + clk_hw_unregister(slow_rc); } CLK_OF_DECLARE(sama5d4_clk_sckc, "atmel,sama5d4-sckc", of_sama5d4_sckc_setup); From patchwork Thu Jun 13 15:37:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 10992483 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EFFC313AD for ; Thu, 13 Jun 2019 15:39:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DA88720243 for ; Thu, 13 Jun 2019 15:39:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CEA5620499; Thu, 13 Jun 2019 15:39:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6C8A420243 for ; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: claudiu.beznea@gmail.com, Claudiu.Beznea@microchip.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.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 From: Claudiu Beznea Use at91 specific functions to free all resources in case of error. Signed-off-by: Claudiu Beznea --- drivers/clk/at91/sckc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c index f7ad3e9414dc..42502830a56a 100644 --- a/drivers/clk/at91/sckc.c +++ b/drivers/clk/at91/sckc.c @@ -514,13 +514,13 @@ static void __init of_sam9x60_sckc_setup(struct device_node *np) return; unregister_td_slck: - clk_hw_unregister(clk_data->hws[1]); + at91_clk_unregister_sam9x5_slow(clk_data->hws[1]); unregister_md_slck: clk_hw_unregister(clk_data->hws[0]); clk_data_free: kfree(clk_data); unregister_slow_osc: - clk_hw_unregister(slow_osc); + at91_clk_unregister_slow_osc(slow_osc); unregister_slow_rc: clk_hw_unregister(slow_rc); }