From mboxrd@z Thu Jan 1 00:00:00 1970 From: Santosh Shilimkar Subject: Re: Fwd: [PATCH 2/8] watchdog: davinci: use davinci_wdt_device structure to hold device data Date: Tue, 12 Nov 2013 10:37:04 -0500 Message-ID: <52824B20.9080002@ti.com> References: <1383680783-12114-3-git-send-email-ivan.khoronzhuk@ti.com> <527A2888.5030604@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <527A2888.5030604@ti.com> 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: "ivan.khoronzhuk" Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, pawel.moll@arm.com, swarren@wwwdotorg.org, ijc+devicetree@hellion.org.uk, nsekhar@ti.com, galak@kernel.crashing.org, rob.herring@calxeda.com, linux-kernel@vger.kernel.org, wim@iguana.be, grant.likely@linaro.org, linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org On Wednesday 06 November 2013 06:31 AM, ivan.khoronzhuk wrote: > Some SoCs, like Keystone 2, can support more than one WDT and each > watchdog device has to use it's own base address, clock source, > wdd device, so add new davinci_wdt_device structure to hold device In commit avoid struct names ;) s/wdd/watchdog device > data. > > Signed-off-by: Ivan Khoronzhuk > --- > drivers/watchdog/davinci_wdt.c | 74 ++++++++++++++++++++++++++-------------- > 1 file changed, 48 insertions(+), 26 deletions(-) > > diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c > index a6eef71..1fc2093 100644 > --- a/drivers/watchdog/davinci_wdt.c > +++ b/drivers/watchdog/davinci_wdt.c [...] > @@ -123,14 +135,21 @@ static int davinci_wdt_probe(struct platform_device *pdev) > struct device *dev = &pdev->dev; > struct resource *wdt_mem; > struct watchdog_device *wdd; > + struct davinci_wdt_device *davinci_wdt; > + > + davinci_wdt = devm_kzalloc(dev, sizeof(*davinci_wdt), GFP_KERNEL); > + if (!davinci_wdt) > + return -ENOMEM; > > - wdt_clk = devm_clk_get(dev, NULL); > - if (WARN_ON(IS_ERR(wdt_clk))) > - return PTR_ERR(wdt_clk); > + davinci_wdt->clk = devm_clk_get(dev, NULL); > + if (WARN_ON(IS_ERR(davinci_wdt->clk))) > + return PTR_ERR(davinci_wdt->clk); > > - clk_prepare_enable(wdt_clk); > + clk_prepare_enable(davinci_wdt->clk); > > - wdd = &wdt_wdd; > + platform_set_drvdata(pdev, davinci_wdt); > + > + wdd = &davinci_wdt->wdd; > wdd->info = &davinci_wdt_info; > wdd->ops = &davinci_wdt_ops; > wdd->min_timeout = 1; > @@ -142,12 +161,13 @@ static int davinci_wdt_probe(struct platform_device *pdev) > > dev_info(dev, "heartbeat %d sec\n", wdd->timeout); > > + watchdog_set_drvdata(wdd, davinci_wdt); > watchdog_set_nowayout(wdd, WATCHDOG_NOWAYOUT); > > wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); > - wdt_base = devm_ioremap_resource(dev, wdt_mem); > - if (IS_ERR(wdt_base)) > - return PTR_ERR(wdt_base); > + davinci_wdt->base = devm_ioremap_resource(dev, wdt_mem); > + if (IS_ERR(davinci_wdt->base)) > + return PTR_ERR(davinci_wdt->base); You should free up davinci_wdt memory before returning, right ? Other than that patch looks fine to me. With above fixed, Acked-by: Santosh Shilimkar