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From: Dinh.Nguyen@freescale.com (Dinh Nguyen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv1 2.6.34-rc6 2/3] mx5: change usb clock source from pll3 to pll2
Date: Wed,  5 May 2010 17:56:10 -0500	[thread overview]
Message-ID: <1273100171-3235-3-git-send-email-Dinh.Nguyen@freescale.com> (raw)
In-Reply-To: <1273100171-3235-2-git-send-email-Dinh.Nguyen@freescale.com>

For power management reasons, pll2 should be used to source the USBOH3
clock for mx51. PLL3 can be completely gated off when USB is not used.

Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
---
 arch/arm/mach-mx5/clock-mx51.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-mx5/clock-mx51.c b/arch/arm/mach-mx5/clock-mx51.c
index dcca330..933c0d1 100644
--- a/arch/arm/mach-mx5/clock-mx51.c
+++ b/arch/arm/mach-mx5/clock-mx51.c
@@ -763,7 +763,7 @@ DEFINE_CLOCK(gpt_ipg_clk, 0, MXC_CCM_CCGR2, MXC_CCM_CCGRx_CG10_OFFSET,
 
 /* USB */
 DEFINE_CLOCK(usboh3_clk, 0, MXC_CCM_CCGR2, MXC_CCM_CCGRx_CG14_OFFSET,
-	NULL, NULL, &pll3_sw_clk, NULL);
+	NULL, NULL, &pll2_sw_clk, NULL);
 
 /* FEC */
 DEFINE_CLOCK(fec_clk, 0, MXC_CCM_CCGR2, MXC_CCM_CCGRx_CG12_OFFSET,
-- 
1.6.0.4

  reply	other threads:[~2010-05-05 22:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-05 22:56 PATCHv1 2.6.34-rc6 0/3-Enable usb gadget on freescale mx51 babbage hw Dinh Nguyen
2010-05-05 22:56 ` [PATCHv1 2.6.34-rc6 1/3] mxc: gadget: remove 60mhz clock requirement for freescale mx51 usb core Dinh Nguyen
2010-05-05 22:56   ` Dinh Nguyen [this message]
2010-05-05 22:56     ` [PATCHv1 2.6.34-rc6 3/3] mx5: enable usb gadget for freescale mx51 babbage board Dinh Nguyen
2010-05-06  7:27       ` Sascha Hauer
2010-05-06  7:14     ` [PATCHv1 2.6.34-rc6 2/3] mx5: change usb clock source from pll3 to pll2 Sascha Hauer
2010-05-06 18:33   ` [PATCHv1 2.6.34-rc6 1/3] mxc: gadget: remove 60mhz clock requirement for freescale mx51 usb core Fabio Estevam

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