From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
To: Matthew McClintock
<mmcclint-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: qca-upstream.external-A+ZNKFmMK5xy9aJCnZT0Uw@public.gmane.org,
Wim Van Sebroeck <wim-IQzOog9fTRqzQB+pC5nmwQ@public.gmane.org>,
"open list:WATCHDOG DEVICE DRIVERS"
<linux-watchdog-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
open list <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH 08/17] watchdog: qcom: configure BARK time in addition to BITE time
Date: Thu, 7 Apr 2016 00:02:45 -0700 [thread overview]
Message-ID: <57060615.3@roeck-us.net> (raw)
In-Reply-To: <1458770712-10880-9-git-send-email-mmcclint-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
On 03/23/2016 03:05 PM, Matthew McClintock wrote:
> For certain parts and some versions of TZ, TZ will reset the chip
> when a BARK is triggered even though it was not configured here. So
> by default let's configure this BARK time as well.
>
> Signed-off-by: Matthew McClintock <mmcclint-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Reviewed-by: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
> ---
> drivers/watchdog/qcom-wdt.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/watchdog/qcom-wdt.c b/drivers/watchdog/qcom-wdt.c
> index e46f18d..53f57c3 100644
> --- a/drivers/watchdog/qcom-wdt.c
> +++ b/drivers/watchdog/qcom-wdt.c
> @@ -22,18 +22,21 @@
> enum wdt_reg {
> WDT_RST,
> WDT_EN,
> + WDT_BARK_TIME,
> WDT_BITE_TIME,
> };
>
> static const u32 reg_offset_data_apcs_tmr[] = {
> [WDT_RST] = 0x38,
> [WDT_EN] = 0x40,
> + [WDT_BARK_TIME] = 0x4C,
> [WDT_BITE_TIME] = 0x5C,
> };
>
> static const u32 reg_offset_data_kpss[] = {
> [WDT_RST] = 0x4,
> [WDT_EN] = 0x8,
> + [WDT_BARK_TIME] = 0x10,
> [WDT_BITE_TIME] = 0x14,
> };
>
> @@ -62,6 +65,7 @@ static int qcom_wdt_start(struct watchdog_device *wdd)
>
> writel(0, wdt_addr(wdt, WDT_EN));
> writel(1, wdt_addr(wdt, WDT_RST));
> + writel(wdd->timeout * wdt->rate, wdt_addr(wdt, WDT_BARK_TIME));
> writel(wdd->timeout * wdt->rate, wdt_addr(wdt, WDT_BITE_TIME));
> writel(1, wdt_addr(wdt, WDT_EN));
> return 0;
> @@ -104,6 +108,7 @@ static int qcom_wdt_restart(struct watchdog_device *wdd, unsigned long action,
>
> writel(0, wdt_addr(wdt, WDT_EN));
> writel(1, wdt_addr(wdt, WDT_RST));
> + writel(timeout, wdt_addr(wdt, WDT_BARK_TIME));
> writel(timeout, wdt_addr(wdt, WDT_BITE_TIME));
> writel(1, wdt_addr(wdt, WDT_EN));
>
>
--
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next prev parent reply other threads:[~2016-04-07 7:02 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-23 22:04 [PATCH 00/17] Additional IPQ4019 platform support Matthew McClintock
2016-03-23 22:04 ` [PATCH 01/17] pinctrl: qcom: ipq4019: set ngpios to correct value Matthew McClintock
2016-03-25 21:19 ` Bjorn Andersson
2016-03-31 9:53 ` Linus Walleij
2016-03-23 22:04 ` [PATCH 02/17] pinctrl: qcom: ipq4019: fix the function enum for gpio mode Matthew McClintock
2016-03-25 21:22 ` Bjorn Andersson
2016-03-31 9:55 ` Linus Walleij
2016-03-23 22:04 ` [PATCH 03/17] pinctrl: qcom: ipq4019: fix register offsets Matthew McClintock
2016-03-25 21:31 ` Bjorn Andersson
2016-03-31 9:57 ` Linus Walleij
2016-03-23 22:04 ` [PATCH 04/17] clk: qcom: ipq4019: switch remaining defines to enums Matthew McClintock
2016-03-29 23:31 ` Stephen Boyd
2016-03-23 22:05 ` [PATCH 05/17] clk: qcom: ipq4019: add some fixed clocks for ddrppl and fepll Matthew McClintock
2016-03-29 23:31 ` Stephen Boyd
[not found] ` <1458770712-10880-1-git-send-email-mmcclint-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-03-23 22:05 ` [PATCH 06/17] watchdog: qcom: update device tree bindings Matthew McClintock
2016-03-23 22:26 ` Stephen Boyd
2016-03-24 15:49 ` Matthew McClintock
[not found] ` <1458770712-10880-7-git-send-email-mmcclint-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-03-25 14:13 ` Rob Herring
2016-03-23 22:05 ` [PATCH 09/17] watchdog: qcom: add kpss-standalone to device tree binding Matthew McClintock
2016-03-25 14:15 ` Rob Herring
2016-03-28 17:02 ` Matthew McClintock
2016-03-28 17:26 ` Rob Herring
2016-03-28 18:15 ` Guenter Roeck
[not found] ` <20160328181544.GB29820-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
2016-03-28 22:22 ` Matthew McClintock
2016-03-23 22:05 ` [PATCH 15/17] qcom: ipq4019: add cpu operating points for cpufreq support Matthew McClintock
[not found] ` <1458770712-10880-16-git-send-email-mmcclint-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-03-23 22:33 ` Stephen Boyd
2017-03-22 14:10 ` [15/17] " Sven Eckelmann
2016-03-23 22:05 ` [PATCH 07/17] watchdog: qcom: add option for standalone watchdog not in timer block Matthew McClintock
[not found] ` <1458770712-10880-8-git-send-email-mmcclint-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-03-23 22:40 ` Stephen Boyd
2016-03-25 16:23 ` Guenter Roeck
[not found] ` <20160325162326.GA25767-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
2016-03-28 16:55 ` Matthew McClintock
[not found] ` <D54FA5B6-F170-40D3-BF0D-60D40A2C2829-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-03-28 18:13 ` Guenter Roeck
2016-03-28 20:40 ` Matthew McClintock
2016-03-28 21:56 ` Guenter Roeck
[not found] ` <20160328215638.GA25221-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
2016-03-28 22:21 ` Matthew McClintock
2016-03-23 22:05 ` [PATCH 08/17] watchdog: qcom: configure BARK time in addition to BITE time Matthew McClintock
[not found] ` <1458770712-10880-9-git-send-email-mmcclint-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-03-23 22:42 ` Stephen Boyd
2016-03-24 15:46 ` Matthew McClintock
2016-03-24 16:17 ` Guenter Roeck
2016-03-24 19:49 ` Matthew McClintock
2016-04-07 7:02 ` Guenter Roeck [this message]
2016-03-23 22:05 ` [PATCH 10/17] qcom: ipq4019: add watchdog node to ipq4019 SoC and DK01 device tree Matthew McClintock
2016-03-23 22:05 ` [PATCH 11/17] qcom: ipq4019: add support for reset via qcom,ps-hold Matthew McClintock
2016-03-23 22:05 ` [PATCH 12/17] qcom: ipq4019: add spi node to ipq4019 SoC and DK01 device tree Matthew McClintock
2016-03-23 22:05 ` [PATCH 13/17] qcom: ipq4019: add i2c " Matthew McClintock
2016-03-23 22:05 ` [PATCH 14/17] cpufreq: ipq4019: add cpufreq driver Matthew McClintock
2016-03-24 6:44 ` Viresh Kumar
2016-03-24 15:42 ` Matthew McClintock
2016-03-23 22:05 ` [PATCH 16/17] qcom: ipq4019: add crypto nodes to ipq4019 SoC and DK01 device tree Matthew McClintock
2016-03-23 22:05 ` [PATCH 17/17] qcom: ipq4019: add DMA " Matthew McClintock
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