remoteproc: k3-r5: keep the device on during stop

Keep the core on when stopping a R5F core. On a stop, the core is
halted and held in reset. On a start, the reset is released after a
firmware loaded and this boots the core.
This mechanism allows each R5F core in a cluster to be
independently stopped and loaded with a new firmware.

Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Reviewed-by: Beleswar Padhi <b-padhi@ti.com>
Tested-by: Beleswar Padhi <b-padhi@ti.com>

1 files changed, 0 insertions, 18 deletions

diff --git a/drivers/remoteproc/ti_k3_r5_remoteproc.c b/drivers/remoteproc/ti_k3_r5_remoteproc.c
index c84683dde0bf..ad208a7ea473 100644
--- a/drivers/remoteproc/ti_k3_r5_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c
@@ -342,15 +342,6 @@ static int k3_r5_split_reset(struct k3_r5_core *core)
                 return ret;
         }
 
-        ret = core->ti_sci->ops.dev_ops.put_device(core->ti_sci,
-                                                   core->ti_sci_id);
-        if (ret) {
-                dev_err(core->dev, "module-reset assert failed, ret = %d\n",
-                        ret);
-                if (reset_control_deassert(core->reset))
-                        dev_warn(core->dev, "local-reset deassert back failed\n");
-        }
-
         return ret;
 }
 
@@ -870,15 +861,6 @@ static int k3_r5_rproc_stop(struct rproc *rproc)
                         return 0;
                 }
 
-                /* do not allow core 0 to stop before core 1 */
-                core1 = list_last_entry(&cluster->cores, struct k3_r5_core,
-                                        elem);
-                if (core != core1 && core1->rproc->state != RPROC_OFFLINE) {
-                        dev_err(dev, "%s: can not stop core 0 before core 1\n",
-                                __func__);
-                        ret = -EPERM;
-                        goto out;
-                }
                 reinit_completion(&kproc->shut_comp);
                 ret = mbox_send_message(kproc->mbox, (void *)msg);
                 if (ret < 0) {