diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2020-04-20 21:08:45 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-04-21 17:05:57 +0200 |
| commit | 0392727c261bab65a35cd4f82ee9459bc237591d (patch) | |
| tree | 033598aec9337ae48f475eaee474053ebb964986 /drivers | |
| parent | spi: bcm-qspi: when tx/rx buffer is NULL set to 0 (diff) | |
| download | linux-0392727c261bab65a35cd4f82ee9459bc237591d.tar.xz linux-0392727c261bab65a35cd4f82ee9459bc237591d.zip | |
spi: bcm-qspi: Handle clock probe deferral
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: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200420190853.45614-2-kdasu.kdev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-bcm-qspi.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c index afed1ea62ec1..4c0d0cc4d3b1 100644 --- a/drivers/spi/spi-bcm-qspi.c +++ b/drivers/spi/spi-bcm-qspi.c @@ -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"); |