From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752375AbdFNMky (ORCPT ); Wed, 14 Jun 2017 08:40:54 -0400 Received: from mail-wr0-f170.google.com ([209.85.128.170]:36051 "EHLO mail-wr0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751771AbdFNMkx (ORCPT ); Wed, 14 Jun 2017 08:40:53 -0400 From: Daniel Lezcano To: tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, Linus Walleij , Jonas Jensen Subject: [PATCH 02/23] clocksource/drivers/fttmr010: Fix the clock handling Date: Wed, 14 Jun 2017 14:39:23 +0200 Message-Id: <1497443984-12371-2-git-send-email-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1497443984-12371-1-git-send-email-daniel.lezcano@linaro.org> References: <20170614123800.GH2261@mai> <1497443984-12371-1-git-send-email-daniel.lezcano@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Linus Walleij We need to also prepare and enable the clock we are using to get the right reference count and avoid it being shut off. Tested-by: Jonas Jensen Signed-off-by: Linus Walleij Signed-off-by: Daniel Lezcano --- drivers/clocksource/timer-fttmr010.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/clocksource/timer-fttmr010.c b/drivers/clocksource/timer-fttmr010.c index b4a6f1e..58ce017 100644 --- a/drivers/clocksource/timer-fttmr010.c +++ b/drivers/clocksource/timer-fttmr010.c @@ -238,12 +238,18 @@ static int __init fttmr010_timer_of_init(struct device_node *np) * and using EXTCLK is not supported in the driver. */ struct clk *clk; + int ret; clk = of_clk_get_by_name(np, "PCLK"); if (IS_ERR(clk)) { - pr_err("could not get PCLK"); + pr_err("could not get PCLK\n"); return PTR_ERR(clk); } + ret = clk_prepare_enable(clk); + if (ret) { + pr_err("failed to enable PCLK\n"); + return ret; + } tick_rate = clk_get_rate(clk); return fttmr010_timer_common_init(np); -- 2.7.4