From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Date: Tue, 29 Oct 2013 09:55:05 +0000 Subject: Re: [PATCH 01/12] clocksource: sh_cmt: Add clk_prepare/unprepare support Message-Id: <9952506.6pWpQZf7WG@avalon> List-Id: References: <1383000569-8916-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> <1383000569-8916-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com> <20131029055534.GB11580@verge.net.au> In-Reply-To: <20131029055534.GB11580@verge.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org Hi Simon, On Tuesday 29 October 2013 14:55:35 Simon Horman wrote: > On Mon, Oct 28, 2013 at 11:49:18PM +0100, Laurent Pinchart wrote: > > Prepare the clock at probe time, as there is no other appropriate place > > in the driver where we're allowed to sleep. > > > > Cc: Daniel Lezcano > > Cc: linux-kernel@vger.kernel.org > > Signed-off-by: Laurent Pinchart > > > > Thanks Laurent, > > I have queued this up in the clocksources branch of my renesas tree. > I will send a pull request to Mike once v3.13-rc1 has hit the shelves. > Mike, please let me know if you would prefer something earlier than that. I thought the clocksource patches had to go through Daniel's tree. If you can take them directly that's easier, so I'm fine with that. Does this imply your Acked-by (for patches 01 to 03) ? > > --- > > > > drivers/clocksource/sh_cmt.c | 20 ++++++++++++++++---- > > 1 file changed, 16 insertions(+), 4 deletions(-) > > > > diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c > > index 0965e98..940341a 100644 > > --- a/drivers/clocksource/sh_cmt.c > > +++ b/drivers/clocksource/sh_cmt.c > > @@ -634,12 +634,18 @@ static int sh_cmt_clock_event_next(unsigned long > > delta,> > > static void sh_cmt_clock_event_suspend(struct clock_event_device *ced) > > { > > - pm_genpd_syscore_poweroff(&ced_to_sh_cmt(ced)->pdev->dev); > > + struct sh_cmt_priv *p = ced_to_sh_cmt(ced); > > + > > + pm_genpd_syscore_poweroff(&p->pdev->dev); > > + clk_unprepare(p->clk); > > } > > > > static void sh_cmt_clock_event_resume(struct clock_event_device *ced) > > { > > - pm_genpd_syscore_poweron(&ced_to_sh_cmt(ced)->pdev->dev); > > + struct sh_cmt_priv *p = ced_to_sh_cmt(ced); > > + > > + clk_prepare(p->clk); > > + pm_genpd_syscore_poweron(&p->pdev->dev); > > } > > > > static void sh_cmt_register_clockevent(struct sh_cmt_priv *p, > > > > @@ -737,6 +743,10 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct > > platform_device *pdev)> > > goto err2; > > } > > > > + ret = clk_prepare(p->clk); > > + if (ret < 0) > > + goto err3; > > + > > if (res2 && (resource_size(res2) = 4)) { > > /* assume both CMSTR and CMCSR to be 32-bit */ > > p->read_control = sh_cmt_read32; > > @@ -773,19 +783,21 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, > > struct platform_device *pdev)> > > cfg->clocksource_rating); > > if (ret) { > > dev_err(&p->pdev->dev, "registration failed\n"); > > - goto err3; > > + goto err4; > > } > > p->cs_enabled = false; > > > > ret = setup_irq(irq, &p->irqaction); > > if (ret) { > > dev_err(&p->pdev->dev, "failed to request irq %d\n", irq); > > - goto err3; > > + goto err4; > > } > > > > platform_set_drvdata(pdev, p); > > > > return 0; > > > > +err4: > > + clk_unprepare(p->clk); > > err3: > > clk_put(p->clk); > > err2: -- Regards, Laurent Pinchart From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754220Ab3J2Jyl (ORCPT ); Tue, 29 Oct 2013 05:54:41 -0400 Received: from perceval.ideasonboard.com ([95.142.166.194]:34520 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753728Ab3J2Jyj (ORCPT ); Tue, 29 Oct 2013 05:54:39 -0400 From: Laurent Pinchart To: Simon Horman Cc: Laurent Pinchart , linux-arm-kernel@lists.infradead.org, linux-sh@vger.kernel.org, Mike Turquette , Daniel Lezcano , linux-kernel@vger.kernel.org Subject: Re: [PATCH 01/12] clocksource: sh_cmt: Add clk_prepare/unprepare support Date: Tue, 29 Oct 2013 10:55:05 +0100 Message-ID: <9952506.6pWpQZf7WG@avalon> User-Agent: KMail/4.10.5 (Linux/3.10.7-gentoo-r1; KDE/4.10.5; x86_64; ; ) In-Reply-To: <20131029055534.GB11580@verge.net.au> References: <1383000569-8916-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> <1383000569-8916-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com> <20131029055534.GB11580@verge.net.au> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Simon, On Tuesday 29 October 2013 14:55:35 Simon Horman wrote: > On Mon, Oct 28, 2013 at 11:49:18PM +0100, Laurent Pinchart wrote: > > Prepare the clock at probe time, as there is no other appropriate place > > in the driver where we're allowed to sleep. > > > > Cc: Daniel Lezcano > > Cc: linux-kernel@vger.kernel.org > > Signed-off-by: Laurent Pinchart > > > > Thanks Laurent, > > I have queued this up in the clocksources branch of my renesas tree. > I will send a pull request to Mike once v3.13-rc1 has hit the shelves. > Mike, please let me know if you would prefer something earlier than that. I thought the clocksource patches had to go through Daniel's tree. If you can take them directly that's easier, so I'm fine with that. Does this imply your Acked-by (for patches 01 to 03) ? > > --- > > > > drivers/clocksource/sh_cmt.c | 20 ++++++++++++++++---- > > 1 file changed, 16 insertions(+), 4 deletions(-) > > > > diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c > > index 0965e98..940341a 100644 > > --- a/drivers/clocksource/sh_cmt.c > > +++ b/drivers/clocksource/sh_cmt.c > > @@ -634,12 +634,18 @@ static int sh_cmt_clock_event_next(unsigned long > > delta,> > > static void sh_cmt_clock_event_suspend(struct clock_event_device *ced) > > { > > - pm_genpd_syscore_poweroff(&ced_to_sh_cmt(ced)->pdev->dev); > > + struct sh_cmt_priv *p = ced_to_sh_cmt(ced); > > + > > + pm_genpd_syscore_poweroff(&p->pdev->dev); > > + clk_unprepare(p->clk); > > } > > > > static void sh_cmt_clock_event_resume(struct clock_event_device *ced) > > { > > - pm_genpd_syscore_poweron(&ced_to_sh_cmt(ced)->pdev->dev); > > + struct sh_cmt_priv *p = ced_to_sh_cmt(ced); > > + > > + clk_prepare(p->clk); > > + pm_genpd_syscore_poweron(&p->pdev->dev); > > } > > > > static void sh_cmt_register_clockevent(struct sh_cmt_priv *p, > > > > @@ -737,6 +743,10 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct > > platform_device *pdev)> > > goto err2; > > } > > > > + ret = clk_prepare(p->clk); > > + if (ret < 0) > > + goto err3; > > + > > if (res2 && (resource_size(res2) == 4)) { > > /* assume both CMSTR and CMCSR to be 32-bit */ > > p->read_control = sh_cmt_read32; > > @@ -773,19 +783,21 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, > > struct platform_device *pdev)> > > cfg->clocksource_rating); > > if (ret) { > > dev_err(&p->pdev->dev, "registration failed\n"); > > - goto err3; > > + goto err4; > > } > > p->cs_enabled = false; > > > > ret = setup_irq(irq, &p->irqaction); > > if (ret) { > > dev_err(&p->pdev->dev, "failed to request irq %d\n", irq); > > - goto err3; > > + goto err4; > > } > > > > platform_set_drvdata(pdev, p); > > > > return 0; > > > > +err4: > > + clk_unprepare(p->clk); > > err3: > > clk_put(p->clk); > > err2: -- Regards, Laurent Pinchart From mboxrd@z Thu Jan 1 00:00:00 1970 From: laurent.pinchart@ideasonboard.com (Laurent Pinchart) Date: Tue, 29 Oct 2013 10:55:05 +0100 Subject: [PATCH 01/12] clocksource: sh_cmt: Add clk_prepare/unprepare support In-Reply-To: <20131029055534.GB11580@verge.net.au> References: <1383000569-8916-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> <1383000569-8916-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com> <20131029055534.GB11580@verge.net.au> Message-ID: <9952506.6pWpQZf7WG@avalon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Simon, On Tuesday 29 October 2013 14:55:35 Simon Horman wrote: > On Mon, Oct 28, 2013 at 11:49:18PM +0100, Laurent Pinchart wrote: > > Prepare the clock at probe time, as there is no other appropriate place > > in the driver where we're allowed to sleep. > > > > Cc: Daniel Lezcano > > Cc: linux-kernel at vger.kernel.org > > Signed-off-by: Laurent Pinchart > > > > Thanks Laurent, > > I have queued this up in the clocksources branch of my renesas tree. > I will send a pull request to Mike once v3.13-rc1 has hit the shelves. > Mike, please let me know if you would prefer something earlier than that. I thought the clocksource patches had to go through Daniel's tree. If you can take them directly that's easier, so I'm fine with that. Does this imply your Acked-by (for patches 01 to 03) ? > > --- > > > > drivers/clocksource/sh_cmt.c | 20 ++++++++++++++++---- > > 1 file changed, 16 insertions(+), 4 deletions(-) > > > > diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c > > index 0965e98..940341a 100644 > > --- a/drivers/clocksource/sh_cmt.c > > +++ b/drivers/clocksource/sh_cmt.c > > @@ -634,12 +634,18 @@ static int sh_cmt_clock_event_next(unsigned long > > delta,> > > static void sh_cmt_clock_event_suspend(struct clock_event_device *ced) > > { > > - pm_genpd_syscore_poweroff(&ced_to_sh_cmt(ced)->pdev->dev); > > + struct sh_cmt_priv *p = ced_to_sh_cmt(ced); > > + > > + pm_genpd_syscore_poweroff(&p->pdev->dev); > > + clk_unprepare(p->clk); > > } > > > > static void sh_cmt_clock_event_resume(struct clock_event_device *ced) > > { > > - pm_genpd_syscore_poweron(&ced_to_sh_cmt(ced)->pdev->dev); > > + struct sh_cmt_priv *p = ced_to_sh_cmt(ced); > > + > > + clk_prepare(p->clk); > > + pm_genpd_syscore_poweron(&p->pdev->dev); > > } > > > > static void sh_cmt_register_clockevent(struct sh_cmt_priv *p, > > > > @@ -737,6 +743,10 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct > > platform_device *pdev)> > > goto err2; > > } > > > > + ret = clk_prepare(p->clk); > > + if (ret < 0) > > + goto err3; > > + > > if (res2 && (resource_size(res2) == 4)) { > > /* assume both CMSTR and CMCSR to be 32-bit */ > > p->read_control = sh_cmt_read32; > > @@ -773,19 +783,21 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, > > struct platform_device *pdev)> > > cfg->clocksource_rating); > > if (ret) { > > dev_err(&p->pdev->dev, "registration failed\n"); > > - goto err3; > > + goto err4; > > } > > p->cs_enabled = false; > > > > ret = setup_irq(irq, &p->irqaction); > > if (ret) { > > dev_err(&p->pdev->dev, "failed to request irq %d\n", irq); > > - goto err3; > > + goto err4; > > } > > > > platform_set_drvdata(pdev, p); > > > > return 0; > > > > +err4: > > + clk_unprepare(p->clk); > > err3: > > clk_put(p->clk); > > err2: -- Regards, Laurent Pinchart