From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Francesco Lavra , Maxime Ripard , Guenter Roeck , Wim Van Sebroeck Subject: [PATCH 4.2 036/258] watchdog: sunxi: fix activation of system reset Date: Sat, 17 Oct 2015 18:55:49 -0700 Message-Id: <20151018014731.959069830@linuxfoundation.org> In-Reply-To: <20151018014729.976101177@linuxfoundation.org> References: <20151018014729.976101177@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Francesco Lavra commit 0919e4445190da18496d31aac08b90828a47d45f upstream. Commit f2147de33470 ("watchdog: sunxi: support parameterized compatible strings") introduced a regression in sunxi_wdt_start(), by which the system reset function of the watchdog is not enabled upon starting the watchdog. As a result, the system is not reset when the watchdog expires. Fix it. Fixes: f2147de33470 ("watchdog: sunxi: support parameterized compatible strings") Signed-off-by: Francesco Lavra Acked-by: Maxime Ripard Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Greg Kroah-Hartman --- drivers/watchdog/sunxi_wdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/watchdog/sunxi_wdt.c +++ b/drivers/watchdog/sunxi_wdt.c @@ -184,7 +184,7 @@ static int sunxi_wdt_start(struct watchd /* Set system reset function */ reg = readl(wdt_base + regs->wdt_cfg); reg &= ~(regs->wdt_reset_mask); - reg |= ~(regs->wdt_reset_val); + reg |= regs->wdt_reset_val; writel(reg, wdt_base + regs->wdt_cfg); /* Enable watchdog */