The rproc_reset() implementations in TI K3 DSP and M4 remoteproc drivers assert reset in the same way. Refactor the above function into the ti_k3_common.c driver as k3_rproc_reset() and use it throughout DSP and M4 drivers for resetting the remote processor.
Signed-off-by: Beleswar Padhi <b-pa...@ti.com> --- v10: Changelog: 1. Split [v9 12/26] into [v10 14/33] and [v10 15/33] patches. Link to v9: https://lore.kernel.org/all/20250317120622.1746415-13-b-pa...@ti.com/ drivers/remoteproc/ti_k3_common.c | 25 ++++++++++++++++++++ drivers/remoteproc/ti_k3_common.h | 1 + drivers/remoteproc/ti_k3_dsp_remoteproc.c | 28 ++--------------------- drivers/remoteproc/ti_k3_m4_remoteproc.c | 16 +++---------- 4 files changed, 31 insertions(+), 39 deletions(-) diff --git a/drivers/remoteproc/ti_k3_common.c b/drivers/remoteproc/ti_k3_common.c index aace308b49b0e..19bb6c337af77 100644 --- a/drivers/remoteproc/ti_k3_common.c +++ b/drivers/remoteproc/ti_k3_common.c @@ -105,5 +105,30 @@ void k3_rproc_kick(struct rproc *rproc, int vqid) } EXPORT_SYMBOL_GPL(k3_rproc_kick); +/* Put the remote processor into reset */ +int k3_rproc_reset(struct k3_rproc *kproc) +{ + struct device *dev = kproc->dev; + int ret; + + if (kproc->data->uses_lreset) { + ret = reset_control_assert(kproc->reset); + if (ret) + dev_err(dev, "local-reset assert failed (%pe)\n", ERR_PTR(ret)); + return ret; + } + + ret = kproc->ti_sci->ops.dev_ops.put_device(kproc->ti_sci, + kproc->ti_sci_id); + if (ret) { + dev_err(dev, "module-reset assert failed (%pe)\n", ERR_PTR(ret)); + if (reset_control_deassert(kproc->reset)) + dev_warn(dev, "local-reset deassert back failed\n"); + } + + return ret; +} +EXPORT_SYMBOL_GPL(k3_rproc_reset); + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("TI K3 common Remoteproc code"); diff --git a/drivers/remoteproc/ti_k3_common.h b/drivers/remoteproc/ti_k3_common.h index 6ae7ac4ec5696..f3400fc774766 100644 --- a/drivers/remoteproc/ti_k3_common.h +++ b/drivers/remoteproc/ti_k3_common.h @@ -90,4 +90,5 @@ struct k3_rproc { void k3_rproc_mbox_callback(struct mbox_client *client, void *data); void k3_rproc_kick(struct rproc *rproc, int vqid); +int k3_rproc_reset(struct k3_rproc *kproc); #endif /* REMOTEPROC_TI_K3_COMMON_H */ diff --git a/drivers/remoteproc/ti_k3_dsp_remoteproc.c b/drivers/remoteproc/ti_k3_dsp_remoteproc.c index 0a8c9e61393d2..f8a5282df5b71 100644 --- a/drivers/remoteproc/ti_k3_dsp_remoteproc.c +++ b/drivers/remoteproc/ti_k3_dsp_remoteproc.c @@ -24,30 +24,6 @@ #define KEYSTONE_RPROC_LOCAL_ADDRESS_MASK (SZ_16M - 1) -/* Put the DSP processor into reset */ -static int k3_dsp_rproc_reset(struct k3_rproc *kproc) -{ - struct device *dev = kproc->dev; - int ret; - - if (kproc->data->uses_lreset) { - ret = reset_control_assert(kproc->reset); - if (ret) - dev_err(dev, "local-reset assert failed (%pe)\n", ERR_PTR(ret)); - return ret; - } - - ret = kproc->ti_sci->ops.dev_ops.put_device(kproc->ti_sci, - kproc->ti_sci_id); - if (ret) { - dev_err(dev, "module-reset assert failed (%pe)\n", ERR_PTR(ret)); - if (reset_control_deassert(kproc->reset)) - dev_warn(dev, "local-reset deassert back failed\n"); - } - - return ret; -} - /* Release the DSP processor from reset */ static int k3_dsp_rproc_release(struct k3_rproc *kproc) { @@ -201,7 +177,7 @@ static int k3_dsp_rproc_stop(struct rproc *rproc) { struct k3_rproc *kproc = rproc->priv; - k3_dsp_rproc_reset(kproc); + k3_rproc_reset(kproc); return 0; } @@ -565,7 +541,7 @@ static int k3_dsp_rproc_probe(struct platform_device *pdev) return dev_err_probe(dev, ret, "failed to get reset status\n"); } else if (ret == 0) { dev_warn(dev, "local reset is deasserted for device\n"); - k3_dsp_rproc_reset(kproc); + k3_rproc_reset(kproc); } } } diff --git a/drivers/remoteproc/ti_k3_m4_remoteproc.c b/drivers/remoteproc/ti_k3_m4_remoteproc.c index 8a6917259ce60..7d5b75be2e4f8 100644 --- a/drivers/remoteproc/ti_k3_m4_remoteproc.c +++ b/drivers/remoteproc/ti_k3_m4_remoteproc.c @@ -65,11 +65,9 @@ static int k3_m4_rproc_prepare(struct rproc *rproc) * Ensure the local reset is asserted so the core doesn't * execute bogus code when the module reset is released. */ - ret = reset_control_assert(kproc->reset); - if (ret) { - dev_err(dev, "could not assert local reset\n"); + ret = k3_rproc_reset(kproc); + if (ret) return ret; - } ret = reset_control_status(kproc->reset); if (ret <= 0) { @@ -374,16 +372,8 @@ static int k3_m4_rproc_start(struct rproc *rproc) static int k3_m4_rproc_stop(struct rproc *rproc) { struct k3_rproc *kproc = rproc->priv; - struct device *dev = kproc->dev; - int ret; - ret = reset_control_assert(kproc->reset); - if (ret) { - dev_err(dev, "local-reset assert failed, ret = %d\n", ret); - return ret; - } - - return 0; + return k3_rproc_reset(kproc); } /* -- 2.34.1
