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From: "Bedia, Vaibhav" <vaibhav.bedia@ti.com>
To: Peter Korsgaard <jacmet@sunsite.dk>
Cc: "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"tony@atomide.com" <tony@atomide.com>,
	"khilman@deeprootsystems.com" <khilman@deeprootsystems.com>,
	"Shilimkar, Santosh" <santosh.shilimkar@ti.com>,
	"Cousson, Benoit" <b-cousson@ti.com>,
	Paul Walmsley <paul@pwsan.com>
Subject: RE: [RFC v2 16/18] ARM: OMAP2+: AM33XX: Basic suspend resume support
Date: Mon, 21 Jan 2013 10:37:06 +0000	[thread overview]
Message-ID: <B5906170F1614E41A8A28DE3B8D121433ECF118E@DBDE01.ent.ti.com> (raw)
In-Reply-To: <87ip6vlwaf.fsf@dell.be.48ers.dk>

Hi Peter,

On Thu, Jan 17, 2013 at 19:57:20, Peter Korsgaard wrote:
> >>>>> "V" == Vaibhav Bedia <vaibhav.bedia@ti.com> writes:
> 
> Hi,
> 
>  V> +static void am33xx_pm_firmware_cb(const struct firmware *fw, void *context)
>  V> +{
>  V> +	struct wkup_m3_context *wkup_m3_context = context;
>  V> +	struct platform_device *pdev = to_platform_device(wkup_m3_context->dev);
>  V> +	int ret = 0;
>  V> +
>  V> +	/* no firmware found */
>  V> +	if (!fw) {
>  V> +		dev_err(wkup_m3_context->dev, "request_firmware failed\n");
>  V> +		goto err;
>  V> +	}
>  V> +
>  V> +	memcpy((void *)wkup_m3_context->code, fw->data, fw->size);
> 
> A size check would be good. I don't know much about the finer details
> about the m3 and how it is connected, but don't you need to ensure data
> is flushed before resetting the m3?
> 

Will add the reg property in the next version. The wkup-m3 memory is coming via
ioremap() so AFAIK it should be ok. I realized that I do need to replace the memcpy()
with memcpy_toio() here.

Thanks,
Vaibhav


WARNING: multiple messages have this Message-ID (diff)
From: vaibhav.bedia@ti.com (Bedia, Vaibhav)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC v2 16/18] ARM: OMAP2+: AM33XX: Basic suspend resume support
Date: Mon, 21 Jan 2013 10:37:06 +0000	[thread overview]
Message-ID: <B5906170F1614E41A8A28DE3B8D121433ECF118E@DBDE01.ent.ti.com> (raw)
In-Reply-To: <87ip6vlwaf.fsf@dell.be.48ers.dk>

Hi Peter,

On Thu, Jan 17, 2013 at 19:57:20, Peter Korsgaard wrote:
> >>>>> "V" == Vaibhav Bedia <vaibhav.bedia@ti.com> writes:
> 
> Hi,
> 
>  V> +static void am33xx_pm_firmware_cb(const struct firmware *fw, void *context)
>  V> +{
>  V> +	struct wkup_m3_context *wkup_m3_context = context;
>  V> +	struct platform_device *pdev = to_platform_device(wkup_m3_context->dev);
>  V> +	int ret = 0;
>  V> +
>  V> +	/* no firmware found */
>  V> +	if (!fw) {
>  V> +		dev_err(wkup_m3_context->dev, "request_firmware failed\n");
>  V> +		goto err;
>  V> +	}
>  V> +
>  V> +	memcpy((void *)wkup_m3_context->code, fw->data, fw->size);
> 
> A size check would be good. I don't know much about the finer details
> about the m3 and how it is connected, but don't you need to ensure data
> is flushed before resetting the m3?
> 

Will add the reg property in the next version. The wkup-m3 memory is coming via
ioremap() so AFAIK it should be ok. I realized that I do need to replace the memcpy()
with memcpy_toio() here.

Thanks,
Vaibhav

  reply	other threads:[~2013-01-21 10:37 UTC|newest]

Thread overview: 148+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-31 13:06 [RFC v2 00/18] ARM: OMAP2+: AM33XX: Add suspend-resume support Vaibhav Bedia
2012-12-31 13:06 ` Vaibhav Bedia
2012-12-31 13:06 ` [RFC v2 01/18] mailbox: OMAP2+: Add support for AM33XX Vaibhav Bedia
2012-12-31 13:06   ` Vaibhav Bedia
2013-01-01 18:25   ` Tony Lindgren
2013-01-01 18:25     ` Tony Lindgren
2013-01-02 11:09     ` Bedia, Vaibhav
2013-01-02 11:09       ` Bedia, Vaibhav
2013-01-08 13:53   ` Santosh Shilimkar
2013-01-08 13:53     ` Santosh Shilimkar
2013-01-09  5:16     ` Bedia, Vaibhav
2013-01-09  5:16       ` Bedia, Vaibhav
2012-12-31 13:06 ` [RFC v2 02/18] mailbox: Add an API for flushing the FIFO Vaibhav Bedia
2012-12-31 13:06   ` Vaibhav Bedia
2013-01-08 13:56   ` Santosh Shilimkar
2013-01-08 13:56     ` Santosh Shilimkar
2013-01-09  5:16     ` Bedia, Vaibhav
2013-01-09  5:16       ` Bedia, Vaibhav
2012-12-31 13:06 ` [RFC v2 03/18] memory: emif: Move EMIF related header file to include/linux/ Vaibhav Bedia
2012-12-31 13:06   ` Vaibhav Bedia
2013-01-08 14:04   ` Santosh Shilimkar
2013-01-08 14:04     ` Santosh Shilimkar
2013-01-09  5:31     ` Bedia, Vaibhav
2013-01-09  5:31       ` Bedia, Vaibhav
2012-12-31 13:06 ` [RFC v2 04/18] ARM: OMAP2+: AM33XX: CM: Get rid of unncessary header inclusions Vaibhav Bedia
2012-12-31 13:06   ` Vaibhav Bedia
2013-01-08 15:00   ` Santosh Shilimkar
2013-01-08 15:00     ` Santosh Shilimkar
2012-12-31 13:06 ` [RFC v2 05/18] ARM: OMAP2+: AM33XX: CM/PRM: Use __ASSEMBLER__ macros in header files Vaibhav Bedia
2012-12-31 13:06   ` Vaibhav Bedia
2013-01-08 15:01   ` Santosh Shilimkar
2013-01-08 15:01     ` Santosh Shilimkar
2013-01-09  5:31     ` Bedia, Vaibhav
2013-01-09  5:31       ` Bedia, Vaibhav
2012-12-31 13:06 ` [RFC v2 06/18] ARM: OMAP2+: AM33XX: hwmod: Register OCMC RAM hwmod Vaibhav Bedia
2012-12-31 13:06   ` Vaibhav Bedia
2013-01-08 15:04   ` Santosh Shilimkar
2013-01-08 15:04     ` Santosh Shilimkar
2012-12-31 13:07 ` [RFC v2 07/18] ARM: OMAP2+: AM33XX: hwmod: Update TPTC0 hwmod with the right flags Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:05   ` Santosh Shilimkar
2013-01-08 15:05     ` Santosh Shilimkar
2013-01-09  6:02     ` Bedia, Vaibhav
2013-01-09  6:02       ` Bedia, Vaibhav
2013-02-11 23:33   ` Kevin Hilman
2013-02-11 23:33     ` Kevin Hilman
2013-02-13 10:56     ` Bedia, Vaibhav
2013-02-13 10:56       ` Bedia, Vaibhav
2012-12-31 13:07 ` [RFC v2 08/18] ARM: OMAP2+: AM33XX: hwmod: Fixup cpgmac0 hwmod entry Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:08   ` Santosh Shilimkar
2013-01-08 15:08     ` Santosh Shilimkar
2012-12-31 13:07 ` [RFC v2 09/18] ARM: OMAP2+: AM33XX: hwmod: Update the WKUP-M3 hwmod with reset status bit Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:09   ` Santosh Shilimkar
2013-01-08 15:09     ` Santosh Shilimkar
2012-12-31 13:07 ` [RFC v2 10/18] ARM: OMAP2+: AM33XX: Update the hardreset API Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:10   ` Santosh Shilimkar
2013-01-08 15:10     ` Santosh Shilimkar
2012-12-31 13:07 ` [RFC v2 11/18] ARM: DTS: AM33XX: Add nodes for OCMC RAM and WKUP-M3 Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:12   ` Santosh Shilimkar
2013-01-08 15:12     ` Santosh Shilimkar
2012-12-31 13:07 ` [RFC v2 12/18] ARM: OMAP2+: timer: Add suspend-resume callbacks for clockevent device Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:15   ` Santosh Shilimkar
2013-01-08 15:15     ` Santosh Shilimkar
2013-01-11  4:37     ` Bedia, Vaibhav
2013-01-11  4:37       ` Bedia, Vaibhav
2013-01-17 18:45       ` Jon Hunter
2013-01-17 18:45         ` Jon Hunter
2013-01-18  5:25         ` Santosh Shilimkar
2013-01-18  5:25           ` Santosh Shilimkar
2013-01-21  7:22           ` Bedia, Vaibhav
2013-01-21  7:22             ` Bedia, Vaibhav
2013-01-30 17:46             ` Jon Hunter
2013-01-30 17:46               ` Jon Hunter
2013-01-31 11:17               ` Bedia, Vaibhav
2013-01-31 11:17                 ` Bedia, Vaibhav
2013-01-17 18:40   ` Jon Hunter
2013-01-17 18:40     ` Jon Hunter
2013-01-21  7:22     ` Bedia, Vaibhav
2013-01-21  7:22       ` Bedia, Vaibhav
2012-12-31 13:07 ` [RFC v2 13/18] ARM: OMAP2+: AM33XX: timer: Interchance clkevt and clksrc timers Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:17   ` Santosh Shilimkar
2013-01-08 15:17     ` Santosh Shilimkar
2013-01-09  5:31     ` Bedia, Vaibhav
2013-01-09  5:31       ` Bedia, Vaibhav
2013-01-17 19:09   ` Jon Hunter
2013-01-17 19:09     ` Jon Hunter
2013-01-24 22:30   ` Jon Hunter
2013-01-24 22:30     ` Jon Hunter
2013-01-30 17:48     ` Jon Hunter
2013-01-30 17:48       ` Jon Hunter
2013-01-30 17:49       ` Jon Hunter
2013-01-30 17:49         ` Jon Hunter
2013-01-31 11:29         ` Bedia, Vaibhav
2013-01-31 11:29           ` Bedia, Vaibhav
2012-12-31 13:07 ` [RFC v2 14/18] ARM: OMAP2+: AM33XX: control: Add some control module registers and APIs Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:21   ` Santosh Shilimkar
2013-01-08 15:21     ` Santosh Shilimkar
2013-01-09  5:38     ` Bedia, Vaibhav
2013-01-09  5:38       ` Bedia, Vaibhav
2013-01-09  7:31       ` Santosh Shilimkar
2013-01-09  7:31         ` Santosh Shilimkar
2013-01-09  9:37         ` Bedia, Vaibhav
2013-01-09  9:37           ` Bedia, Vaibhav
2013-01-09  9:53           ` Santosh Shilimkar
2013-01-09  9:53             ` Santosh Shilimkar
2012-12-31 13:07 ` [RFC v2 15/18] ARM: OMAP2+: AM33XX: Add assembly code for PM operations Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2012-12-31 13:07 ` [RFC v2 16/18] ARM: OMAP2+: AM33XX: Basic suspend resume support Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-17 14:27   ` Peter Korsgaard
2013-01-17 14:27     ` Peter Korsgaard
2013-01-21 10:37     ` Bedia, Vaibhav [this message]
2013-01-21 10:37       ` Bedia, Vaibhav
2013-01-22 12:50       ` Peter Korsgaard
2013-01-22 12:50         ` Peter Korsgaard
2013-02-12  1:27   ` Kevin Hilman
2013-02-12  1:27     ` Kevin Hilman
2013-02-13 13:43     ` Bedia, Vaibhav
2013-02-13 13:43       ` Bedia, Vaibhav
2013-02-18 16:11       ` Kevin Hilman
2013-02-18 16:11         ` Kevin Hilman
2013-02-20  9:21         ` Bedia, Vaibhav
2013-02-20  9:21           ` Bedia, Vaibhav
2013-02-20 14:30           ` Kevin Hilman
2013-02-20 14:30             ` Kevin Hilman
2013-04-03 11:52   ` Daniel Mack
2013-04-03 11:52     ` Daniel Mack
2013-04-04  8:47     ` Bedia, Vaibhav
2013-04-04  8:47       ` Bedia, Vaibhav
2012-12-31 13:07 ` [RFC v2 17/18] ARM: OMAP2+: AM33XX: Select Mailbox when PM is enabled Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:22   ` Santosh Shilimkar
2013-01-08 15:22     ` Santosh Shilimkar
2013-01-09  5:38     ` Bedia, Vaibhav
2013-01-09  5:38       ` Bedia, Vaibhav
2012-12-31 13:07 ` [RFC v2 18/18] ARM: OMAP2+: AM33XX: Hookup AM33XX PM code into OMAP builds Vaibhav Bedia
2012-12-31 13:07   ` Vaibhav Bedia
2013-01-08 15:31 ` [RFC v2 00/18] ARM: OMAP2+: AM33XX: Add suspend-resume support Santosh Shilimkar
2013-01-08 15:31   ` Santosh Shilimkar
2013-01-09  5:38   ` Bedia, Vaibhav
2013-01-09  5:38     ` Bedia, Vaibhav

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