From: Thierry Reding <thierry.reding@gmail.com>
Date: Mon, 18 Nov 2013 15:11:35 +0000 (+0100)
Subject: clk: tegra: Fix clock rate computation
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=00c674e42c278e7af7b39b6c72dbbaa5e7ebd96c;p=linux-beck.git

clk: tegra: Fix clock rate computation

The PLL output frequency is multiplied during the P-divider computation,
so it needs to be divided by the P-divider again before returning.

This fixes an issue where clk_round_rate() would return the multiplied
frequency instead of the real one after the P-divider.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index c9d1e5c68dbc..25734348242f 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -411,6 +411,8 @@ static int _calc_rate(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg,
 		return -EINVAL;
 	}
 
+	cfg->output_rate >>= p_div;
+
 	if (pll->params->pdiv_tohw) {
 		ret = _p_div_to_hw(hw, 1 << p_div);
 		if (ret < 0)