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From: Tony Lindgren <tony@atomide.com>
To: Roger Quadros <rogerq@ti.com>
Cc: robh+dt@kernel.org, bcousson@baylibre.com, ssantosh@kernel.org,
	ohad@wizery.com, bjorn.andersson@linaro.org, s-anna@ti.com,
	nsekhar@ti.com, t-kristo@ti.com, nsaulnier@ti.com,
	jreeder@ti.com, m-karicheri2@ti.com, woods.technical@gmail.com,
	linux-omap@vger.kernel.org, linux-remoteproc@vger.kernel.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH 14/17] ARM: OMAP2+: use pdata quirks for PRUSS reset lines on AM335x
Date: Fri, 23 Nov 2018 08:40:08 -0800	[thread overview]
Message-ID: <20181123164008.GD53235@atomide.com> (raw)
In-Reply-To: <1542886753-17625-15-git-send-email-rogerq@ti.com>

* Roger Quadros <rogerq@ti.com> [181122 11:40]:
> From: Suman Anna <s-anna@ti.com>
> 
> The omap_device API is needed to perform the reset management for
> any IP instances with PRCM RSTCTRL registers (hard reset lines).
> This API is limited to the mach-omap2 layer, and cannot be exposed
> to drivers layer directly. So use platform data ops and pdata quirks
> for the PRUSS IP in AM335x SoCs to plumb the required omap_device
> API. The PRUSS SoC bus driver can then use these pdata ops to
> achieve the required reset functionality.
> 
> This is being implemented this way as there is no separate reset
> driver at the moment.

If the reset-simple approach has issues we can certainly do
this until the issues are fixed. I believe Suman had an issue
where we need to prevent the related clockdomain from idling.

Regards,

Tony

  reply	other threads:[~2018-11-23 16:40 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-22 11:38 [PATCH 00/17] Add support for TI PRU ICSS Roger Quadros
2018-11-22 11:38 ` Roger Quadros
2018-11-22 11:38 ` [PATCH 01/17] dt-bindings: remoteproc: Add TI PRUSS bindings Roger Quadros
2018-11-22 11:38   ` Roger Quadros
2018-11-23 16:24   ` Tony Lindgren
2018-11-26  7:47     ` Roger Quadros
2018-11-26  7:47       ` Roger Quadros
2018-11-26 19:35       ` Tony Lindgren
2018-11-26 21:14   ` David Lechner
2018-11-26 23:41     ` Tony Lindgren
2018-11-27 15:15     ` Roger Quadros
2018-11-27 15:15       ` Roger Quadros
2018-11-28 15:42       ` David Lechner
2018-11-29  8:49         ` Roger Quadros
2018-11-29  8:49           ` Roger Quadros
2018-11-29 16:18           ` David Lechner
2018-11-22 11:38 ` [PATCH 02/17] soc: ti: pruss: Define platform data for PRUSS bus driver Roger Quadros
2018-11-22 11:38   ` Roger Quadros
2018-11-22 11:38 ` [PATCH 03/17] soc: ti: pruss: Add pruss_soc_bus platform driver Roger Quadros
2018-11-22 11:38   ` Roger Quadros
2018-11-22 11:39 ` [PATCH 04/17] soc: ti: pruss: Fix system suspend/MStandby config issues Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-22 11:39 ` [PATCH 05/17] soc: ti: pruss: Configure SYSCFG properly during probe/remove Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-23 16:26   ` Tony Lindgren
2018-11-22 11:39 ` [PATCH 06/17] soc: ti: pruss: Add a platform driver for PRUSS in TI SoCs Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-26 21:15   ` David Lechner
2018-11-27 15:17     ` Roger Quadros
2018-11-27 15:17       ` Roger Quadros
2018-11-22 11:39 ` [PATCH 07/17] soc: ti: pruss: enable OCP master ports in SYSCFG always Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-23 16:35   ` Tony Lindgren
2018-11-22 11:39 ` [PATCH 08/17] soc: ti: pruss: Add a PRUSS irqchip driver for PRUSS interrupts Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-23 16:37   ` Tony Lindgren
2018-11-26  8:09     ` Roger Quadros
2018-11-26  8:09       ` Roger Quadros
2018-11-26 19:33       ` Tony Lindgren
2018-12-12 15:48         ` Roger Quadros
2018-12-12 15:48           ` Roger Quadros
2018-12-12 17:25           ` Tony Lindgren
2018-11-26  8:09     ` Roger Quadros
2018-11-26  8:09       ` Roger Quadros
2018-11-26 21:17   ` David Lechner
2018-11-27 15:39     ` Roger Quadros
2018-11-27 15:39       ` Roger Quadros
2018-11-28 15:46       ` David Lechner
2018-11-22 11:39 ` [PATCH 09/17] soc: ti: pruss: add pruss_{request,release}_mem_region() API Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-26 21:18   ` David Lechner
2018-11-22 11:39 ` [PATCH 10/17] soc: ti: pruss_intc: Add API to trigger a PRU sysevent Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-26 21:18   ` David Lechner
2018-11-22 11:39 ` [PATCH 11/17] soc: ti: pruss: add pruss_get()/put() API Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-23  2:47   ` kbuild test robot
2018-11-23  2:47     ` kbuild test robot
2018-11-23  2:47     ` kbuild test robot
2018-11-23  9:41     ` Roger Quadros
2018-11-23  9:41       ` Roger Quadros
2018-11-23  8:20   ` Arnd Bergmann
2018-11-23  8:58     ` Tero Kristo
2018-11-23  8:58       ` Tero Kristo
2018-11-23  9:40     ` Roger Quadros
2018-11-23  9:40       ` Roger Quadros
2018-11-26 21:18   ` David Lechner
2018-11-22 11:39 ` [PATCH 12/17] soc: ti: pruss: add pruss_cfg_read()/update() API Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-22 11:39 ` [PATCH 13/17] soc: ti: pruss: export pruss_intc_configure/unconfigure APIs Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-26 21:19   ` David Lechner
2018-11-22 11:39 ` [PATCH 14/17] ARM: OMAP2+: use pdata quirks for PRUSS reset lines on AM335x Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-23 16:40   ` Tony Lindgren [this message]
2018-11-22 11:39 ` [PATCH 15/17] ARM: dts: AM33xx: Add the PRU-ICSS DT nodes Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-26 16:37   ` David Lechner
2018-11-22 11:39 ` [PATCH 16/17] ARM: dts: AM33xx: Add PRU system events for virtio Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-22 11:39 ` [PATCH 17/17] ARM: dts: am335x-*: Enable PRU-ICSS nodes Roger Quadros
2018-11-22 11:39   ` Roger Quadros
2018-11-26 16:45   ` David Lechner
2018-12-03  2:04 ` [PATCH 00/17] Add support for TI PRU ICSS Derald D. Woods

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