diff options
| -rw-r--r-- | drivers/bus/mhi/core/internal.h | 2 | ||||
| -rw-r--r-- | drivers/bus/mhi/core/main.c | 9 | ||||
| -rw-r--r-- | drivers/net/mhi/net.c | 2 | ||||
| -rw-r--r-- | drivers/net/wwan/mhi_wwan_ctrl.c | 2 | ||||
| -rw-r--r-- | include/linux/mhi.h | 7 | ||||
| -rw-r--r-- | net/qrtr/mhi.c | 16 |
6 files changed, 8 insertions, 30 deletions
diff --git a/drivers/bus/mhi/core/internal.h b/drivers/bus/mhi/core/internal.h index bc239a11aa69..5b9ea66b92dc 100644 --- a/drivers/bus/mhi/core/internal.h +++ b/drivers/bus/mhi/core/internal.h @@ -682,7 +682,7 @@ void mhi_rddm_prepare(struct mhi_controller *mhi_cntrl, struct image_info *img_info); void mhi_fw_load_handler(struct mhi_controller *mhi_cntrl); int mhi_prepare_channel(struct mhi_controller *mhi_cntrl, - struct mhi_chan *mhi_chan, unsigned int flags); + struct mhi_chan *mhi_chan); int mhi_init_chan_ctxt(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan); void mhi_deinit_chan_ctxt(struct mhi_controller *mhi_cntrl, diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c index 84448233f64c..fc9196f11cb7 100644 --- a/drivers/bus/mhi/core/main.c +++ b/drivers/bus/mhi/core/main.c @@ -1430,7 +1430,7 @@ exit_unprepare_channel: } int mhi_prepare_channel(struct mhi_controller *mhi_cntrl, - struct mhi_chan *mhi_chan, unsigned int flags) + struct mhi_chan *mhi_chan) { int ret = 0; struct device *dev = &mhi_chan->mhi_dev->dev; @@ -1455,9 +1455,6 @@ int mhi_prepare_channel(struct mhi_controller *mhi_cntrl, if (ret) goto error_pm_state; - if (mhi_chan->dir == DMA_FROM_DEVICE) - mhi_chan->pre_alloc = !!(flags & MHI_CH_INBOUND_ALLOC_BUFS); - /* Pre-allocate buffer for xfer ring */ if (mhi_chan->pre_alloc) { int nr_el = get_nr_avail_ring_elements(mhi_cntrl, @@ -1613,7 +1610,7 @@ void mhi_reset_chan(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan) } /* Move channel to start state */ -int mhi_prepare_for_transfer(struct mhi_device *mhi_dev, unsigned int flags) +int mhi_prepare_for_transfer(struct mhi_device *mhi_dev) { int ret, dir; struct mhi_controller *mhi_cntrl = mhi_dev->mhi_cntrl; @@ -1624,7 +1621,7 @@ int mhi_prepare_for_transfer(struct mhi_device *mhi_dev, unsigned int flags) if (!mhi_chan) continue; - ret = mhi_prepare_channel(mhi_cntrl, mhi_chan, flags); + ret = mhi_prepare_channel(mhi_cntrl, mhi_chan); if (ret) goto error_open_chan; } diff --git a/drivers/net/mhi/net.c b/drivers/net/mhi/net.c index 11be6bcdd551..e60e38c1f09d 100644 --- a/drivers/net/mhi/net.c +++ b/drivers/net/mhi/net.c @@ -335,7 +335,7 @@ static int mhi_net_newlink(void *ctxt, struct net_device *ndev, u32 if_id, u64_stats_init(&mhi_netdev->stats.tx_syncp); /* Start MHI channels */ - err = mhi_prepare_for_transfer(mhi_dev, 0); + err = mhi_prepare_for_transfer(mhi_dev); if (err) goto out_err; diff --git a/drivers/net/wwan/mhi_wwan_ctrl.c b/drivers/net/wwan/mhi_wwan_ctrl.c index d0a98f34c54d..e4d0f696687f 100644 --- a/drivers/net/wwan/mhi_wwan_ctrl.c +++ b/drivers/net/wwan/mhi_wwan_ctrl.c @@ -110,7 +110,7 @@ static int mhi_wwan_ctrl_start(struct wwan_port *port) int ret; /* Start mhi device's channel(s) */ - ret = mhi_prepare_for_transfer(mhiwwan->mhi_dev, 0); + ret = mhi_prepare_for_transfer(mhiwwan->mhi_dev); if (ret) return ret; diff --git a/include/linux/mhi.h b/include/linux/mhi.h index 5e08468854db..944aa3aa3035 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -719,13 +719,8 @@ void mhi_device_put(struct mhi_device *mhi_dev); * host and device execution environments match and * channels are in a DISABLED state. * @mhi_dev: Device associated with the channels - * @flags: MHI channel flags */ -int mhi_prepare_for_transfer(struct mhi_device *mhi_dev, - unsigned int flags); - -/* Automatically allocate and queue inbound buffers */ -#define MHI_CH_INBOUND_ALLOC_BUFS BIT(0) +int mhi_prepare_for_transfer(struct mhi_device *mhi_dev); /** * mhi_unprepare_from_transfer - Reset UL and DL channels for data transfer. diff --git a/net/qrtr/mhi.c b/net/qrtr/mhi.c index 1dc955ca57d3..fa611678af05 100644 --- a/net/qrtr/mhi.c +++ b/net/qrtr/mhi.c @@ -15,7 +15,6 @@ struct qrtr_mhi_dev { struct qrtr_endpoint ep; struct mhi_device *mhi_dev; struct device *dev; - struct completion ready; }; /* From MHI to QRTR */ @@ -51,10 +50,6 @@ static int qcom_mhi_qrtr_send(struct qrtr_endpoint *ep, struct sk_buff *skb) struct qrtr_mhi_dev *qdev = container_of(ep, struct qrtr_mhi_dev, ep); int rc; - rc = wait_for_completion_interruptible(&qdev->ready); - if (rc) - goto free_skb; - if (skb->sk) sock_hold(skb->sk); @@ -84,7 +79,7 @@ static int qcom_mhi_qrtr_probe(struct mhi_device *mhi_dev, int rc; /* start channels */ - rc = mhi_prepare_for_transfer(mhi_dev, 0); + rc = mhi_prepare_for_transfer(mhi_dev); if (rc) return rc; @@ -101,15 +96,6 @@ static int qcom_mhi_qrtr_probe(struct mhi_device *mhi_dev, if (rc) return rc; - /* start channels */ - rc = mhi_prepare_for_transfer(mhi_dev, MHI_CH_INBOUND_ALLOC_BUFS); - if (rc) { - qrtr_endpoint_unregister(&qdev->ep); - dev_set_drvdata(&mhi_dev->dev, NULL); - return rc; - } - - complete_all(&qdev->ready); dev_dbg(qdev->dev, "Qualcomm MHI QRTR driver probed\n"); return 0; |