From 3e219db43c5b0c0694560dca718ff2e5db6b977a Mon Sep 17 00:00:00 2001 From: Richard Zhu Date: Wed, 14 Dec 2011 13:11:07 +0800 Subject: [PATCH] ENGR00170244-5 ARM: AHCI: Enable PDDQ mode on mx53 loco board In order to save the power consumption, enable the PDDQ mode of AHCI PHY when there is no sata disk on the port Signed-off-by: Richard Zhu --- arch/arm/mach-mx5/board-mx53_loco.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-mx5/board-mx53_loco.c b/arch/arm/mach-mx5/board-mx53_loco.c index 56f88d185a95..257933af0177 100755 --- a/arch/arm/mach-mx5/board-mx53_loco.c +++ b/arch/arm/mach-mx5/board-mx53_loco.c @@ -480,9 +480,9 @@ static int mx53_loco_sata_init(struct device *dev, void __iomem *addr) tmpdata = clk_get_rate(clk) / 1000; clk_put(clk); - sata_init(addr, tmpdata); - - return ret; + ret = sata_init(addr, tmpdata); + if (ret == 0) + return ret; release_sata_ref_clk: clk_disable(sata_ref_clk); -- 2.39.5