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Tue, 26 Feb 2019 04:07:32 -0800 (PST) From: Bartosz Golaszewski To: Sekhar Nori , Kevin Hilman , Daniel Lezcano , Thomas Gleixner , David Lechner Subject: [PATCH v3 03/11] ARM: davinci: WARN_ON() if clk_get() fails Date: Tue, 26 Feb 2019 13:06:25 +0100 Message-Id: <20190226120633.18200-4-brgl@bgdev.pl> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190226120633.18200-1-brgl@bgdev.pl> References: <20190226120633.18200-1-brgl@bgdev.pl> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190226_070737_930683_8BAD6747 X-CRM114-Status: GOOD ( 13.74 ) 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: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bartosz Golaszewski Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Bartosz Golaszewski Currently the timer code checks if the clock pointer passed to it is good (!IS_ERR(clk)). The new clocksource driver expects the clock to be functional and doesn't perform any checks so emit a warning if clk_get() fails. Apply this to all davinci platforms. Signed-off-by: Bartosz Golaszewski --- arch/arm/mach-davinci/da830.c | 4 ++++ arch/arm/mach-davinci/da850.c | 4 ++++ arch/arm/mach-davinci/dm355.c | 4 ++++ arch/arm/mach-davinci/dm365.c | 4 ++++ arch/arm/mach-davinci/dm644x.c | 4 ++++ arch/arm/mach-davinci/dm646x.c | 4 ++++ 6 files changed, 24 insertions(+) diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c index 63511f638ce4..d242ce06f7e5 100644 --- a/arch/arm/mach-davinci/da830.c +++ b/arch/arm/mach-davinci/da830.c @@ -750,6 +750,10 @@ void __init da830_init_time(void) da830_pll_init(NULL, pll, NULL); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 67ab71ba3ad3..72d64d39d42a 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -680,6 +680,10 @@ void __init da850_init_time(void) da850_pll0_init(NULL, pll0, cfgchip); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index 4a482445b9a2..57c5a660758e 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -742,6 +742,10 @@ void __init dm355_init_time(void) dm355_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index 8e0a77315add..1d82bb630d11 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -783,6 +783,10 @@ void __init dm365_init_time(void) dm365_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index cecc7ceb8d34..2b0e921aa755 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -678,6 +678,10 @@ void __init dm644x_init_time(void) dm644x_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index f33392f77a03..7e5af984ed9f 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -662,6 +662,10 @@ void __init dm646x_init_time(unsigned long ref_clk_rate, dm646x_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartosz Golaszewski Subject: [PATCH v3 03/11] ARM: davinci: WARN_ON() if clk_get() fails Date: Tue, 26 Feb 2019 13:06:25 +0100 Message-ID: <20190226120633.18200-4-brgl@bgdev.pl> References: <20190226120633.18200-1-brgl@bgdev.pl> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190226120633.18200-1-brgl@bgdev.pl> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Sekhar Nori , Kevin Hilman , Daniel Lezcano , Thomas Gleixner , David Lechner Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bartosz Golaszewski List-Id: devicetree@vger.kernel.org From: Bartosz Golaszewski Currently the timer code checks if the clock pointer passed to it is good (!IS_ERR(clk)). The new clocksource driver expects the clock to be functional and doesn't perform any checks so emit a warning if clk_get() fails. Apply this to all davinci platforms. Signed-off-by: Bartosz Golaszewski --- arch/arm/mach-davinci/da830.c | 4 ++++ arch/arm/mach-davinci/da850.c | 4 ++++ arch/arm/mach-davinci/dm355.c | 4 ++++ arch/arm/mach-davinci/dm365.c | 4 ++++ arch/arm/mach-davinci/dm644x.c | 4 ++++ arch/arm/mach-davinci/dm646x.c | 4 ++++ 6 files changed, 24 insertions(+) diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c index 63511f638ce4..d242ce06f7e5 100644 --- a/arch/arm/mach-davinci/da830.c +++ b/arch/arm/mach-davinci/da830.c @@ -750,6 +750,10 @@ void __init da830_init_time(void) da830_pll_init(NULL, pll, NULL); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 67ab71ba3ad3..72d64d39d42a 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -680,6 +680,10 @@ void __init da850_init_time(void) da850_pll0_init(NULL, pll0, cfgchip); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index 4a482445b9a2..57c5a660758e 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -742,6 +742,10 @@ void __init dm355_init_time(void) dm355_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index 8e0a77315add..1d82bb630d11 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -783,6 +783,10 @@ void __init dm365_init_time(void) dm365_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index cecc7ceb8d34..2b0e921aa755 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -678,6 +678,10 @@ void __init dm644x_init_time(void) dm644x_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index f33392f77a03..7e5af984ed9f 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -662,6 +662,10 @@ void __init dm646x_init_time(unsigned long ref_clk_rate, dm646x_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } -- 2.20.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52BF8C43381 for ; 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Tue, 26 Feb 2019 04:07:33 -0800 (PST) Received: from debian-brgl.home ([2a01:cb1d:af:5b00:6d6c:8493:1ab5:dad7]) by smtp.gmail.com with ESMTPSA id a8sm12642158wmh.26.2019.02.26.04.07.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 26 Feb 2019 04:07:32 -0800 (PST) From: Bartosz Golaszewski To: Sekhar Nori , Kevin Hilman , Daniel Lezcano , Thomas Gleixner , David Lechner Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v3 03/11] ARM: davinci: WARN_ON() if clk_get() fails Date: Tue, 26 Feb 2019 13:06:25 +0100 Message-Id: <20190226120633.18200-4-brgl@bgdev.pl> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190226120633.18200-1-brgl@bgdev.pl> References: <20190226120633.18200-1-brgl@bgdev.pl> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bartosz Golaszewski Currently the timer code checks if the clock pointer passed to it is good (!IS_ERR(clk)). The new clocksource driver expects the clock to be functional and doesn't perform any checks so emit a warning if clk_get() fails. Apply this to all davinci platforms. Signed-off-by: Bartosz Golaszewski --- arch/arm/mach-davinci/da830.c | 4 ++++ arch/arm/mach-davinci/da850.c | 4 ++++ arch/arm/mach-davinci/dm355.c | 4 ++++ arch/arm/mach-davinci/dm365.c | 4 ++++ arch/arm/mach-davinci/dm644x.c | 4 ++++ arch/arm/mach-davinci/dm646x.c | 4 ++++ 6 files changed, 24 insertions(+) diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c index 63511f638ce4..d242ce06f7e5 100644 --- a/arch/arm/mach-davinci/da830.c +++ b/arch/arm/mach-davinci/da830.c @@ -750,6 +750,10 @@ void __init da830_init_time(void) da830_pll_init(NULL, pll, NULL); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 67ab71ba3ad3..72d64d39d42a 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -680,6 +680,10 @@ void __init da850_init_time(void) da850_pll0_init(NULL, pll0, cfgchip); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index 4a482445b9a2..57c5a660758e 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -742,6 +742,10 @@ void __init dm355_init_time(void) dm355_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index 8e0a77315add..1d82bb630d11 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -783,6 +783,10 @@ void __init dm365_init_time(void) dm365_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index cecc7ceb8d34..2b0e921aa755 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -678,6 +678,10 @@ void __init dm644x_init_time(void) dm644x_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index f33392f77a03..7e5af984ed9f 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -662,6 +662,10 @@ void __init dm646x_init_time(unsigned long ref_clk_rate, dm646x_psc_init(NULL, psc); clk = clk_get(NULL, "timer0"); + if (WARN_ON(IS_ERR(clk))) { + pr_err("Unable to get the timer clock\n"); + return; + } davinci_timer_init(clk); } -- 2.20.1