[U-Boot] [PATCH] ARM: OMAP4+: Fix DPLL programming sequence

[Lokesh Vutla]

All the output clock parameters of a DPLL needs to be programmed before
locking the DPLL. But it is being configured after locking the DPLL which
could potentially bypass DPLL. So fixing this sequence.

Reported-by: Richard Woodruff <r-woodruff2 at ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
 arch/arm/cpu/armv7/omap-common/clocks-common.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c
index ef2ac98..2de9935 100644
--- a/arch/arm/cpu/armv7/omap-common/clocks-common.c
+++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
@@ -236,6 +236,8 @@ static void do_setup_dpll(u32 const base, const struct dpll_params *params,
 			/* Dpll locked with ideal values for nominal opps. */
 			debug("\n %s Dpll already locked with ideal"
 						"nominal opp values", dpll);
+
+			bypass_dpll(base);
 			goto setup_post_dividers;
 		}
 	}
@@ -251,13 +253,13 @@ static void do_setup_dpll(u32 const base, const struct dpll_params *params,
 
 	writel(temp, &dpll_regs->cm_clksel_dpll);
 
+setup_post_dividers:
+	setup_post_dividers(base, params);
+
 	/* Lock */
 	if (lock)
 		do_lock_dpll(base);
 
-setup_post_dividers:
-	setup_post_dividers(base, params);
-
 	/* Wait till the DPLL locks */
 	if (lock)
 		wait_for_lock(base);
-- 
2.8.2