diff options
Diffstat (limited to 'drivers/remoteproc/qcom_q6v5.c')
| -rw-r--r-- | drivers/remoteproc/qcom_q6v5.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c index 442a388f8102..5280ec9b5449 100644 --- a/drivers/remoteproc/qcom_q6v5.c +++ b/drivers/remoteproc/qcom_q6v5.c @@ -8,6 +8,7 @@ */ #include <linux/kernel.h> #include <linux/platform_device.h> +#include <linux/interconnect.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/soc/qcom/qcom_aoss.h> @@ -51,9 +52,17 @@ int qcom_q6v5_prepare(struct qcom_q6v5 *q6v5) { int ret; + ret = icc_set_bw(q6v5->path, 0, UINT_MAX); + if (ret < 0) { + dev_err(q6v5->dev, "failed to set bandwidth request\n"); + return ret; + } + ret = q6v5_load_state_toggle(q6v5, true); - if (ret) + if (ret) { + icc_set_bw(q6v5->path, 0, 0); return ret; + } reinit_completion(&q6v5->start_done); reinit_completion(&q6v5->stop_done); @@ -78,6 +87,9 @@ int qcom_q6v5_unprepare(struct qcom_q6v5 *q6v5) disable_irq(q6v5->handover_irq); q6v5_load_state_toggle(q6v5, false); + /* Disable interconnect vote, in case handover never happened */ + icc_set_bw(q6v5->path, 0, 0); + return !q6v5->handover_issued; } EXPORT_SYMBOL_GPL(qcom_q6v5_unprepare); @@ -160,6 +172,8 @@ static irqreturn_t q6v5_handover_interrupt(int irq, void *data) if (q6v5->handover) q6v5->handover(q6v5); + icc_set_bw(q6v5->path, 0, 0); + q6v5->handover_issued = true; return IRQ_HANDLED; @@ -332,6 +346,11 @@ int qcom_q6v5_init(struct qcom_q6v5 *q6v5, struct platform_device *pdev, return load_state ? -ENOMEM : -EINVAL; } + q6v5->path = devm_of_icc_get(&pdev->dev, NULL); + if (IS_ERR(q6v5->path)) + return dev_err_probe(&pdev->dev, PTR_ERR(q6v5->path), + "failed to acquire interconnect path\n"); + return 0; } EXPORT_SYMBOL_GPL(qcom_q6v5_init); |