1 files changed, 16 insertions, 25 deletions

diff --git a/drivers/clk/tegra/clk-periph-gate.c b/drivers/clk/tegra/clk-periph-gate.c
index 6dd533251e7..50701531482 100644
--- a/drivers/clk/tegra/clk-periph-gate.c
+++ b/drivers/clk/tegra/clk-periph-gate.c
@@ -36,12 +36,12 @@ static DEFINE_SPINLOCK(periph_ref_lock);
 
 #define read_rst(gate) \
 	readl_relaxed(gate->clk_base + (gate->regs->rst_reg))
-#define write_rst_set(val, gate) \
-	writel_relaxed(val, gate->clk_base + (gate->regs->rst_set_reg))
 #define write_rst_clr(val, gate) \
 	writel_relaxed(val, gate->clk_base + (gate->regs->rst_clr_reg))
 
-#define periph_clk_to_bit(periph) (1 << (gate->clk_num % 32))
+#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 +83,13 @@ 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;
@@ -114,26 +121,6 @@ static void clk_periph_disable(struct clk_hw *hw)
 	spin_unlock_irqrestore(&periph_ref_lock, flags);
 }
 
-void tegra_periph_reset(struct tegra_clk_periph_gate *gate, bool assert)
-{
-	if (gate->flags & TEGRA_PERIPH_NO_RESET)
-		return;
-
-	if (assert) {
-		/*
-		 * If peripheral is in the APB bus then read the APB bus to
-		 * flush the write operation in apb bus. This will avoid the
-		 * peripheral access after disabling clock
-		 */
-		if (gate->flags & TEGRA_PERIPH_ON_APB)
-			tegra_read_chipid();
-
-		write_rst_set(periph_clk_to_bit(gate), gate);
-	} else {
-		write_rst_clr(periph_clk_to_bit(gate), gate);
-	}
-}
-
 const struct clk_ops tegra_clk_periph_gate_ops = {
 	.is_enabled = clk_periph_is_enabled,
 	.enable = clk_periph_enable,
@@ -142,12 +129,16 @@ const struct clk_ops tegra_clk_periph_gate_ops = {
 
 struct clk *tegra_clk_register_periph_gate(const char *name,
 		const char *parent_name, u8 gate_flags, void __iomem *clk_base,
-		unsigned long flags, int clk_num,
-		struct tegra_clk_periph_regs *pregs, int *enable_refcnt)
+		unsigned long flags, int clk_num, int *enable_refcnt)
 {
 	struct tegra_clk_periph_gate *gate;
 	struct clk *clk;
 	struct clk_init_data init;
+	struct tegra_clk_periph_regs *pregs;
+
+	pregs = get_reg_bank(clk_num);
+	if (!pregs)
+		return ERR_PTR(-EINVAL);
 
 	gate = kzalloc(sizeof(*gate), GFP_KERNEL);
 	if (!gate) {