[PATCH v5 10/11] remoteproc: stm32: Introduce new attach() operation

From: Mathieu Poirier
Date: Tue Jul 07 2020 - 17:31:33 EST


Introduce new attach function to be used when attaching to a
remote processor.

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@xxxxxxxxxx>
---
drivers/remoteproc/stm32_rproc.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c
index 882229f3b1c9..7145cd49616e 100644
--- a/drivers/remoteproc/stm32_rproc.c
+++ b/drivers/remoteproc/stm32_rproc.c
@@ -460,6 +460,13 @@ static int stm32_rproc_start(struct rproc *rproc)
return stm32_rproc_set_hold_boot(rproc, true);
}

+static int stm32_rproc_attach(struct rproc *rproc)
+{
+ stm32_rproc_add_coredump_trace(rproc);
+
+ return stm32_rproc_set_hold_boot(rproc, true);
+}
+
static int stm32_rproc_stop(struct rproc *rproc)
{
struct stm32_rproc *ddata = rproc->priv;
@@ -525,6 +532,7 @@ static void stm32_rproc_kick(struct rproc *rproc, int vqid)
static struct rproc_ops st_rproc_ops = {
.start = stm32_rproc_start,
.stop = stm32_rproc_stop,
+ .attach = stm32_rproc_attach,
.kick = stm32_rproc_kick,
.load = rproc_elf_load_segments,
.parse_fw = stm32_rproc_parse_fw,
--
2.25.1