[PATCH 1/3] spi/bcm63xx-hsspi: allow providing clock rate through a second clock
From: Jonas Gorski <hidden>
Date: 2017-02-22 13:19:38
Also in:
linux-spi
Subsystem:
broadcom broadband soc high speed spi controller driver, spi subsystem, the rest · Maintainers:
William Zhang, Kursad Oney, Jonas Gorski, Mark Brown, Linus Torvalds
Instead of requiring the hsspi clock to have a rate, allow using a second clock for providing the Hz rate, which is probably more correct anyway. Signed-off-by: Jonas Gorski <redacted> --- drivers/spi/spi-bcm63xx-hsspi.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-bcm63xx-hsspi.c b/drivers/spi/spi-bcm63xx-hsspi.c
index 55789f7cda92..79096d17ebde 100644
--- a/drivers/spi/spi-bcm63xx-hsspi.c
+++ b/drivers/spi/spi-bcm63xx-hsspi.c@@ -351,8 +351,16 @@ static int bcm63xx_hsspi_probe(struct platform_device *pdev) return PTR_ERR(clk); rate = clk_get_rate(clk); - if (!rate) - return -EINVAL; + if (!rate) { + struct clk *pll_clk = devm_clk_get(dev, "pll"); + + if (IS_ERR(pll_clk)) + return PTR_ERR(pll_clk); + + rate = clk_get_rate(pll_clk); + if (!rate) + return -EINVAL; + } ret = clk_prepare_enable(clk); if (ret)
--
2.11.0
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