Add QSPI clock operation in device probe. Signed-off-by: William Qiu <william.qiu@xxxxxxxxxxxxxxxx> Reviewed-by: Hal Feng <hal.feng@xxxxxxxxxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202306022017.UbwjjWRN-lkp@xxxxxxxxx/ Reported-by: Julia Lawall <julia.lawall@xxxxxxxx> Closes: https://lore.kernel.org/r/202306040644.6ZHs55x4-lkp@xxxxxxxxx/ --- drivers/spi/spi-cadence-quadspi.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c index 6ddb2dfc0f00..8774f9aaff61 100644 --- a/drivers/spi/spi-cadence-quadspi.c +++ b/drivers/spi/spi-cadence-quadspi.c @@ -63,6 +63,8 @@ struct cqspi_st { struct platform_device *pdev; struct spi_master *master; struct clk *clk; + struct clk_bulk_data *clks; + int num_clks; unsigned int sclk; void __iomem *iobase; @@ -1715,6 +1717,16 @@ static int cqspi_probe(struct platform_device *pdev) } if (of_device_is_compatible(pdev->dev.of_node, "starfive,jh7110-qspi")) { + cqspi->num_clks = devm_clk_bulk_get_all(dev, &cqspi->clks); + if (cqspi->num_clks < 0) { + dev_err(dev, "Cannot claim clock: %u\n", cqspi->num_clks); + return -EINVAL; + } + + ret = clk_bulk_prepare_enable(cqspi->num_clks, cqspi->clks); + if (ret) + dev_err(dev, "Cannot enable clock clks\n"); + rstc_ref = devm_reset_control_get_optional_exclusive(dev, "rstc_ref"); if (IS_ERR(rstc_ref)) { ret = PTR_ERR(rstc_ref); @@ -1816,6 +1828,9 @@ static void cqspi_remove(struct platform_device *pdev) clk_disable_unprepare(cqspi->clk); + if (of_device_is_compatible(pdev->dev.of_node, "starfive,jh7110-qspi")) + clk_bulk_disable_unprepare(cqspi->num_clks, cqspi->clks); + pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); } @@ -1831,6 +1846,9 @@ static int cqspi_suspend(struct device *dev) clk_disable_unprepare(cqspi->clk); + if (of_device_is_compatible(dev->of_node, "starfive,jh7110-qspi")) + clk_bulk_disable_unprepare(cqspi->num_clks, cqspi->clks); + return ret; } @@ -1840,6 +1858,8 @@ static int cqspi_resume(struct device *dev) struct spi_master *master = dev_get_drvdata(dev); clk_prepare_enable(cqspi->clk); + if (of_device_is_compatible(dev->of_node, "starfive,jh7110-qspi")) + clk_bulk_prepare_enable(cqspi->num_clks, cqspi->clks); cqspi_wait_idle(cqspi); cqspi_controller_init(cqspi); -- 2.34.1
