From: Arnaud POULIQUEN <arnaud.pouliquen@st.com>
To: Mathieu Poirier <mathieu.poirier@linaro.org>,
<bjorn.andersson@linaro.org>, <ohad@wizery.com>,
<mcoquelin.stm32@gmail.com>, <alexandre.torgue@st.com>
Cc: <loic.pallardy@st.com>, <linux-remoteproc@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 09/12] remoteproc: stm32: Update M4 state in stm32_rproc_stop()
Date: Wed, 29 Apr 2020 16:52:17 +0200 [thread overview]
Message-ID: <f4394e9d-2915-2e15-38e4-80b23baf678e@st.com> (raw)
In-Reply-To: <20200424202505.29562-10-mathieu.poirier@linaro.org>
On 4/24/20 10:25 PM, Mathieu Poirier wrote:
> Update the M4 co-processor state in function stm32_rproc_stop() so
> that it can be used in synchronisation scenarios.
>
> Mainly based on the work published by Arnaud Pouliquen [1].
>
> [1]. https://patchwork.kernel.org/project/linux-remoteproc/list/?series=239877
>
> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Thanks,
Arnaud
> ---
> drivers/remoteproc/stm32_rproc.c | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c
> index 404f17a97095..86d23c35d805 100644
> --- a/drivers/remoteproc/stm32_rproc.c
> +++ b/drivers/remoteproc/stm32_rproc.c
> @@ -493,6 +493,18 @@ static int stm32_rproc_stop(struct rproc *rproc)
> }
> }
>
> + /* update coprocessor state to OFF if available */
> + if (ddata->m4_state.map) {
> + err = regmap_update_bits(ddata->m4_state.map,
> + ddata->m4_state.reg,
> + ddata->m4_state.mask,
> + M4_STATE_OFF);
> + if (err) {
> + dev_err(&rproc->dev, "failed to set copro state\n");
> + return err;
> + }
> + }
> +
> return 0;
> }
>
> @@ -531,6 +543,7 @@ static struct rproc_ops st_rproc_ops = {
>
> static __maybe_unused struct rproc_ops st_rproc_sync_ops = {
> .start = stm32_rproc_sync_start,
> + .stop = stm32_rproc_stop,
> };
>
> static const struct of_device_id stm32_rproc_match[] = {
>
next prev parent reply other threads:[~2020-04-29 14:52 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-24 20:24 [PATCH v2 00/12] remoteproc: stm32: Add support for synchronising with M4 Mathieu Poirier
2020-04-24 20:24 ` [PATCH v2 01/12] remoteproc: stm32: Decouple rproc from memory translation Mathieu Poirier
2020-05-14 4:57 ` Bjorn Andersson
2020-04-24 20:24 ` [PATCH v2 02/12] remoteproc: stm32: Request IRQ with platform device Mathieu Poirier
2020-05-14 4:57 ` Bjorn Andersson
2020-04-24 20:24 ` [PATCH v2 03/12] remoteproc: stm32: Decouple rproc from DT parsing Mathieu Poirier
2020-04-29 13:37 ` Arnaud POULIQUEN
2020-04-30 20:58 ` Mathieu Poirier
2020-05-14 4:59 ` Bjorn Andersson
2020-04-24 20:24 ` [PATCH v2 04/12] remoteproc: stm32: Remove memory translation " Mathieu Poirier
2020-05-14 5:03 ` Bjorn Andersson
2020-04-24 20:24 ` [PATCH v2 05/12] remoteproc: stm32: Parse syscon that will manage M4 synchronisation Mathieu Poirier
2020-05-14 5:03 ` Bjorn Andersson
2020-04-24 20:24 ` [PATCH v2 06/12] remoteproc: stm32: Get coprocessor state Mathieu Poirier
2020-04-29 13:38 ` Arnaud POULIQUEN
2020-05-01 17:40 ` Mathieu Poirier
2020-04-24 20:25 ` [PATCH v2 07/12] remoteproc: stm32: Get loaded resource table for synchronisation Mathieu Poirier
2020-04-24 20:25 ` [PATCH v2 08/12] remoteproc: stm32: Introduce new start ops " Mathieu Poirier
2020-04-29 14:50 ` Arnaud POULIQUEN
2020-04-24 20:25 ` [PATCH v2 09/12] remoteproc: stm32: Update M4 state in stm32_rproc_stop() Mathieu Poirier
2020-04-29 14:52 ` Arnaud POULIQUEN [this message]
2020-04-24 20:25 ` [PATCH v2 10/12] remoteproc: stm32: Introduce new parse fw ops for synchronisation Mathieu Poirier
2020-05-14 5:13 ` Bjorn Andersson
2020-04-24 20:25 ` [PATCH v2 11/12] remoteproc: stm32: Introduce new loaded rsc " Mathieu Poirier
2020-05-14 5:15 ` Bjorn Andersson
2020-04-24 20:25 ` [PATCH v2 12/12] remoteproc: stm32: Set synchronisation state machine if needed Mathieu Poirier
2020-04-29 14:47 ` Arnaud POULIQUEN
2020-05-01 17:54 ` Mathieu Poirier
2020-04-29 15:08 ` [PATCH v2 00/12] remoteproc: stm32: Add support for synchronising with M4 Arnaud POULIQUEN
2020-05-01 17:59 ` Mathieu Poirier
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