linux-kernel - [PATCH v6 23/25] clk: tegra: fix WARN_ON in PLL

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Date:	Thu, 18 Jun 2015 17:28:38 -0400
From:	Rhyland Klein <rklein@...dia.com>
To:	Peter De Schrijver <pdeschrijver@...dia.com>,
	Thierry Reding <thierry.reding@...il.com>
CC:	Mike Turquette <mturquette@...aro.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Bill Huang <bilhuang@...dia.com>, Jim Lin <jilin@...dia.com>,
	Benson Leung <bleung@...omium.org>, linux-clk@...r.kernel.org,
	linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
	Rhyland Klein <rklein@...dia.com>
Subject: [PATCH v6 23/25] clk: tegra: fix WARN_ON in PLL_RE registration

From: Bill Huang <bilhuang@...dia.com>

This fixes two things.

- Read the correct IDDQ register
- Check the correct IDDQ bit position

Signed-off-by: Bill Huang <bilhuang@...dia.com>
Reviewed-by: Benson Leung <bleung@...omium.org>
Signed-off-by: Rhyland Klein <rklein@...dia.com>
---
 drivers/clk/tegra/clk-pll.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index 61bd15f9478d..932a18ce821f 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -1722,7 +1722,8 @@ struct clk *tegra_clk_register_pllre(const char *name, const char *parent_name,
 
 	val = pll_readl_base(pll);
 	if (val & PLL_BASE_ENABLE)
-		WARN_ON(val & pll_params->iddq_bit_idx);
+		WARN_ON(readl_relaxed(clk_base + pll_params->iddq_reg) &
+				BIT(pll_params->iddq_bit_idx));
 	else {
 		int m;
 
-- 
1.7.9.5

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