---

yaml --- r: 372377 b: refs/heads/master c: fdcccbd h: refs/heads/master i: 372375: f992e82 v: v3
git-mirror · Apr 4, 2013 · 160f48e · 160f48e
1 parent 1ff3894
commit 160f48e
Show file tree

Hide file tree

Showing 3 changed files with 12 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a26a029893096204f08a3ff5e262f99e1a75e273
+refs/heads/master: fdcccbd804088eb96881c9f6532de04868f9dbc1
diff --git a/trunk/drivers/clk/tegra/clk-periph-gate.c b/trunk/drivers/clk/tegra/clk-periph-gate.c
@@ -43,6 +43,8 @@ static DEFINE_SPINLOCK(periph_ref_lock);
 
 #define periph_clk_to_bit(gate) (1 << (gate->clk_num % 32))
 
+#define LVL2_CLK_GATE_OVRE 0x554
+
 /* Peripheral gate clock ops */
 static int clk_periph_is_enabled(struct clk_hw *hw)
 {
@@ -83,6 +85,13 @@ static int clk_periph_enable(struct clk_hw *hw)
 		}
 	}
 
+	if (gate->flags & TEGRA_PERIPH_WAR_1005168) {
+		writel_relaxed(0, gate->clk_base + LVL2_CLK_GATE_OVRE);
+		writel_relaxed(BIT(22), gate->clk_base + LVL2_CLK_GATE_OVRE);
+		udelay(1);
+		writel_relaxed(0, gate->clk_base + LVL2_CLK_GATE_OVRE);
+	}
+
 	spin_unlock_irqrestore(&periph_ref_lock, flags);
 
 	return 0;

diff --git a/trunk/drivers/clk/tegra/clk.h b/trunk/drivers/clk/tegra/clk.h
@@ -358,6 +358,7 @@ struct tegra_clk_periph_regs {
  * TEGRA_PERIPH_ON_APB - If peripheral is in the APB bus then read the
  *     bus to flush the write operation in apb bus. This flag indicates
  *     that this peripheral is in apb bus.
+ * TEGRA_PERIPH_WAR_1005168 - Apply workaround for Tegra114 MSENC bug
  */
 struct tegra_clk_periph_gate {
 	u32			magic;
@@ -377,6 +378,7 @@ struct tegra_clk_periph_gate {
 #define TEGRA_PERIPH_NO_RESET BIT(0)
 #define TEGRA_PERIPH_MANUAL_RESET BIT(1)
 #define TEGRA_PERIPH_ON_APB BIT(2)
+#define TEGRA_PERIPH_WAR_1005168 BIT(3)
 
 void tegra_periph_reset(struct tegra_clk_periph_gate *gate, bool assert);
 extern const struct clk_ops tegra_clk_periph_gate_ops;