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spi: Fixes for v6.4 

A small collection of driver specific fixes, none of them particularly
 remarkable or severe.
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Merge tag 'spi-fix-v6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A small collection of driver specific fixes, none of them particularly
  remarkable or severe"

* tag 'spi-fix-v6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: qup: Request DMA before enabling clocks
  spi: mt65xx: make sure operations completed before unloading
  spi: lpspi: disable lpspi module irq in DMA mode
This commit is contained in:
Linus Torvalds 2023-06-06 06:18:28 -07:00
parent 0bdd0f0bf1 0c331fd1dc
commit a4d7d70112
3 changed files with 27 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/spi/spi-fsl-lpspi.c
View File

@ -910,9 +910,14 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
ret = fsl_lpspi_dma_init(&pdev->dev, fsl_lpspi, controller);
if (ret == -EPROBE_DEFER)
goto out_pm_get;
if (ret < 0)
dev_err(&pdev->dev, "dma setup error %d, use pio\n", ret);
else
/*
* disable LPSPI module IRQ when enable DMA mode successfully,
* to prevent the unexpected LPSPI module IRQ events.
*/
disable_irq(irq);
ret = devm_spi_register_controller(&pdev->dev, controller);
if (ret < 0) {

3
drivers/spi/spi-mt65xx.c
View File

@ -1275,6 +1275,9 @@ static int mtk_spi_remove(struct platform_device *pdev)
struct mtk_spi *mdata = spi_master_get_devdata(master);
int ret;
if (mdata->use_spimem && !completion_done(&mdata->spimem_done))
complete(&mdata->spimem_done);
ret = pm_runtime_resume_and_get(&pdev->dev);
if (ret < 0)
return ret;

37
drivers/spi/spi-qup.c
View File

@ -1028,23 +1028,8 @@ static int spi_qup_probe(struct platform_device *pdev)
return -ENXIO;
}
ret = clk_prepare_enable(cclk);
if (ret) {
dev_err(dev, "cannot enable core clock\n");
return ret;
}
ret = clk_prepare_enable(iclk);
if (ret) {
clk_disable_unprepare(cclk);
dev_err(dev, "cannot enable iface clock\n");
return ret;
}
master = spi_alloc_master(dev, sizeof(struct spi_qup));
if (!master) {
clk_disable_unprepare(cclk);
clk_disable_unprepare(iclk);
dev_err(dev, "cannot allocate master\n");
return -ENOMEM;
}
@ -1092,6 +1077,19 @@ static int spi_qup_probe(struct platform_device *pdev)
spin_lock_init(&controller->lock);
init_completion(&controller->done);
ret = clk_prepare_enable(cclk);
if (ret) {
dev_err(dev, "cannot enable core clock\n");
goto error_dma;
}
ret = clk_prepare_enable(iclk);
if (ret) {
clk_disable_unprepare(cclk);
dev_err(dev, "cannot enable iface clock\n");
goto error_dma;
}
iomode = readl_relaxed(base + QUP_IO_M_MODES);
size = QUP_IO_M_OUTPUT_BLOCK_SIZE(iomode);
@ -1121,7 +1119,7 @@ static int spi_qup_probe(struct platform_device *pdev)
ret = spi_qup_set_state(controller, QUP_STATE_RESET);
if (ret) {
dev_err(dev, "cannot set RESET state\n");
goto error_dma;
goto error_clk;
}
writel_relaxed(0, base + QUP_OPERATIONAL);
@ -1145,7 +1143,7 @@ static int spi_qup_probe(struct platform_device *pdev)
ret = devm_request_irq(dev, irq, spi_qup_qup_irq,
IRQF_TRIGGER_HIGH, pdev->name, controller);
if (ret)
goto error_dma;
goto error_clk;
pm_runtime_set_autosuspend_delay(dev, MSEC_PER_SEC);
pm_runtime_use_autosuspend(dev);
@ -1160,11 +1158,12 @@ static int spi_qup_probe(struct platform_device *pdev)
disable_pm:
pm_runtime_disable(&pdev->dev);
error_clk:
clk_disable_unprepare(cclk);
clk_disable_unprepare(iclk);
error_dma:
spi_qup_release_dma(master);
error:
clk_disable_unprepare(cclk);
clk_disable_unprepare(iclk);
spi_master_put(master);
return ret;
}