summaryrefslogtreecommitdiff
path: root/drivers/spi/spi-stm32.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/spi/spi-stm32.c')
-rw-r--r--drivers/spi/spi-stm32.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index d4b33b358a31..2cc850eb8922 100644
--- a/drivers/spi/spi-stm32.c
+++ b/drivers/spi/spi-stm32.c
@@ -804,10 +804,9 @@ static irqreturn_t stm32f4_spi_irq_event(int irq, void *dev_id)
struct spi_master *master = dev_id;
struct stm32_spi *spi = spi_master_get_devdata(master);
u32 sr, mask = 0;
- unsigned long flags;
bool end = false;
- spin_lock_irqsave(&spi->lock, flags);
+ spin_lock(&spi->lock);
sr = readl_relaxed(spi->base + STM32F4_SPI_SR);
/*
@@ -833,7 +832,7 @@ static irqreturn_t stm32f4_spi_irq_event(int irq, void *dev_id)
if (!(sr & mask)) {
dev_dbg(spi->dev, "spurious IT (sr=0x%08x)\n", sr);
- spin_unlock_irqrestore(&spi->lock, flags);
+ spin_unlock(&spi->lock);
return IRQ_NONE;
}
@@ -875,11 +874,11 @@ end_irq:
STM32F4_SPI_CR2_TXEIE |
STM32F4_SPI_CR2_RXNEIE |
STM32F4_SPI_CR2_ERRIE);
- spin_unlock_irqrestore(&spi->lock, flags);
+ spin_unlock(&spi->lock);
return IRQ_WAKE_THREAD;
}
- spin_unlock_irqrestore(&spi->lock, flags);
+ spin_unlock(&spi->lock);
return IRQ_HANDLED;
}
@@ -936,7 +935,11 @@ static irqreturn_t stm32h7_spi_irq_thread(int irq, void *dev_id)
}
if (sr & STM32H7_SPI_SR_SUSP) {
- dev_warn(spi->dev, "Communication suspended\n");
+ static DEFINE_RATELIMIT_STATE(rs,
+ DEFAULT_RATELIMIT_INTERVAL * 10,
+ 1);
+ if (__ratelimit(&rs))
+ dev_dbg_ratelimited(spi->dev, "Communication suspended\n");
if (!spi->cur_usedma && (spi->rx_buf && (spi->rx_len > 0)))
stm32h7_spi_read_rxfifo(spi, false);
/*
@@ -1857,9 +1860,7 @@ static int stm32_spi_probe(struct platform_device *pdev)
spi->irq = platform_get_irq(pdev, 0);
if (spi->irq <= 0) {
- ret = spi->irq;
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev, "failed to get irq: %d\n", ret);
+ ret = dev_err_probe(&pdev->dev, spi->irq, "failed to get irq\n");
goto err_master_put;
}
ret = devm_request_threaded_irq(&pdev->dev, spi->irq,
@@ -2060,7 +2061,7 @@ static int stm32_spi_resume(struct device *dev)
}
ret = pm_runtime_get_sync(dev);
- if (ret) {
+ if (ret < 0) {
dev_err(dev, "Unable to power device:%d\n", ret);
return ret;
}