From: Sergey Sergeev <adron@yapic.net>
Date: Thu, 30 Jun 2016 10:23:15 +0000 (+0300)
Subject: ar71xx: spi-rb4xx fix.
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c312cef223dd;p=openwrt%2Fstaging%2Faparcar.git

ar71xx: spi-rb4xx fix.

In new kernels we should use clk_prepare_enable instead of clk_enable
since clk_enable does not make proper initialization that leads
to rise WARN_ON messages and not working spi bus on the device.

Signed-off-by: Sergey Sergeev <adron@yapic.net>
---

diff --git a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c
index 56260ffc92..357fd41708 100644
--- a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c
+++ b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c
@@ -413,7 +413,7 @@ static int rb4xx_spi_probe(struct platform_device *pdev)
 		goto err_put_master;
 	}
 
-	err = clk_enable(rbspi->ahb_clk);
+	err = clk_prepare_enable(rbspi->ahb_clk);
 	if (err)
 		goto err_clk_put;