spi: bcm-qspi: Handle clock probe deferral (0392727c) · Commits · 戴 / test

The clock provider may not be ready by the time spi-bcm-qspi gets probed, handle probe deferral using devm_clk_get_optional(). Signed-off-by:

drivers/spi/spi-bcm-qspi.c

+5 −7

Original line number	Diff line number	Diff line
		@@ -1227,6 +1227,11 @@ int bcm_qspi_probe(struct platform_device *pdev,
		}

		qspi = spi_master_get_devdata(master);

		qspi->clk = devm_clk_get_optional(&pdev->dev, NULL);
		if (IS_ERR(qspi->clk))
		return PTR_ERR(qspi->clk);

		qspi->pdev = pdev;
		qspi->trans_pos.trans = NULL;
		qspi->trans_pos.byte = 0;
		@@ -1340,13 +1345,6 @@ int bcm_qspi_probe(struct platform_device *pdev,
		qspi->soc_intc = NULL;
		}

		qspi->clk = devm_clk_get(&pdev->dev, NULL);
		if (IS_ERR(qspi->clk)) {
		dev_warn(dev, "unable to get clock\n");
		ret = PTR_ERR(qspi->clk);
		goto qspi_probe_err;
		}

		ret = clk_prepare_enable(qspi->clk);
		if (ret) {
		dev_err(dev, "failed to prepare clock\n");