diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/edma.c | 38 |
1 files changed, 3 insertions, 35 deletions
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index ee3463e774f8..13b6a23dc06b 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -1570,32 +1570,6 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data) return IRQ_HANDLED; } -static void edma_tc_set_pm_state(struct edma_tc *tc, bool enable) -{ - struct platform_device *tc_pdev; - int ret; - - if (!IS_ENABLED(CONFIG_OF) || !tc) - return; - - tc_pdev = of_find_device_by_node(tc->node); - if (!tc_pdev) { - pr_err("%s: TPTC device is not found\n", __func__); - return; - } - if (!pm_runtime_enabled(&tc_pdev->dev)) - pm_runtime_enable(&tc_pdev->dev); - - if (enable) - ret = pm_runtime_get_sync(&tc_pdev->dev); - else - ret = pm_runtime_put_sync(&tc_pdev->dev); - - if (ret < 0) - pr_err("%s: pm_runtime_%s_sync() failed for %s\n", __func__, - enable ? "get" : "put", dev_name(&tc_pdev->dev)); -} - /* Alloc channel resources */ static int edma_alloc_chan_resources(struct dma_chan *chan) { @@ -1632,8 +1606,6 @@ static int edma_alloc_chan_resources(struct dma_chan *chan) EDMA_CHAN_SLOT(echan->ch_num), chan->chan_id, echan->hw_triggered ? "HW" : "SW"); - edma_tc_set_pm_state(echan->tc, true); - return 0; err_slot: @@ -1670,7 +1642,6 @@ static void edma_free_chan_resources(struct dma_chan *chan) echan->alloced = false; } - edma_tc_set_pm_state(echan->tc, false); echan->tc = NULL; echan->hw_triggered = false; @@ -2417,10 +2388,8 @@ static int edma_pm_suspend(struct device *dev) int i; for (i = 0; i < ecc->num_channels; i++) { - if (echan[i].alloced) { + if (echan[i].alloced) edma_setup_interrupt(&echan[i], false); - edma_tc_set_pm_state(echan[i].tc, false); - } } return 0; @@ -2450,8 +2419,6 @@ static int edma_pm_resume(struct device *dev) /* Set up channel -> slot mapping for the entry slot */ edma_set_chmap(&echan[i], echan[i].slot[0]); - - edma_tc_set_pm_state(echan[i].tc, true); } } @@ -2475,7 +2442,8 @@ static struct platform_driver edma_driver = { static int edma_tptc_probe(struct platform_device *pdev) { - return 0; + pm_runtime_enable(&pdev->dev); + return pm_runtime_get_sync(&pdev->dev); } static struct platform_driver edma_tptc_driver = { |