clk: tegra: add ac97 controller clock

AC97 controller clock is hardwired to pll_a_out0.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
index d80c7cc23581..075db0c99edb 100644
--- a/drivers/clk/tegra/clk-tegra20.c
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -872,6 +872,14 @@ static void __init tegra20_periph_clk_init(void)
         struct clk *clk;
         int i;
 
+        /* ac97 */
+        clk = tegra_clk_register_periph_gate("ac97", "pll_a_out0",
+                                    TEGRA_PERIPH_ON_APB,
+                                    clk_base, 0, 3, &periph_l_regs,
+                                    periph_clk_enb_refcnt);
+        clk_register_clkdev(clk, NULL, "tegra20-ac97");
+        clks[ac97] = clk;
+
         /* apbdma */
         clk = tegra_clk_register_periph_gate("apbdma", "pclk", 0, clk_base,
                                     0, 34, &periph_h_regs,