fedora kernel: cd394142aac30b5c751f25b517572e2448695641v3.6.3-2f17

Signed-off-by: Anton Arapov <anton@redhat.com>

1 files changed, 25 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c
index f0f10beeffe..b9c8d2f6a81 100644
--- a/arch/arm/mach-omap2/dpll3xxx.c
+++ b/arch/arm/mach-omap2/dpll3xxx.c
@@ -135,11 +135,20 @@ static u16 _omap3_dpll_compute_freqsel(struct clk *clk, u8 n)
  */
 static int _omap3_noncore_dpll_lock(struct clk *clk)
 {
+	const struct dpll_data *dd;
 	u8 ai;
-	int r;
+	u8 state = 1;
+	int r = 0;
 
 	pr_debug("clock: locking DPLL %s\n", clk->name);
 
+	dd = clk->dpll_data;
+	state <<= __ffs(dd->idlest_mask);
+
+	/* Check if already locked */
+	if ((__raw_readl(dd->idlest_reg) & dd->idlest_mask) == state)
+		goto done;
+
 	ai = omap3_dpll_autoidle_read(clk);
 
 	if (ai)
@@ -152,6 +161,7 @@ static int _omap3_noncore_dpll_lock(struct clk *clk)
 	if (ai)
 		omap3_dpll_allow_idle(clk);
 
+done:
 	return r;
 }
 
@@ -628,3 +638,17 @@ unsigned long omap3_clkoutx2_recalc(struct clk *clk)
 		rate = clk->parent->rate * 2;
 	return rate;
 }
+
+/* OMAP3/4 non-CORE DPLL clkops */
+
+const struct clkops clkops_omap3_noncore_dpll_ops = {
+	.enable		= omap3_noncore_dpll_enable,
+	.disable	= omap3_noncore_dpll_disable,
+	.allow_idle	= omap3_dpll_allow_idle,
+	.deny_idle	= omap3_dpll_deny_idle,
+};
+
+const struct clkops clkops_omap3_core_dpll_ops = {
+	.allow_idle	= omap3_dpll_allow_idle,
+	.deny_idle	= omap3_dpll_deny_idle,
+};