linux-kernel - [PATCH] clk: cdce925: Fix limit check

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Date:   Fri, 11 Nov 2016 22:49:05 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     mturquette@...libre.com, sboyd@...eaurora.org
Cc:     linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] clk: cdce925: Fix limit check

It is likely that instead of '1>64', 'q>64' was expected.

Moreover, according to datasheet,
   http://www.ti.com/lit/ds/symlink/cdce925.pdf
   SCAS847I - JULY 2007 - REVISED OCTOBER 2016
PLL settings limits are: 16 <= q <= 63
So change the upper limit check from 64 to 63.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/clk/clk-cdce925.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/clk-cdce925.c b/drivers/clk/clk-cdce925.c
index b8459c14a1b7..f793b2d9238c 100644
--- a/drivers/clk/clk-cdce925.c
+++ b/drivers/clk/clk-cdce925.c
@@ -216,7 +216,7 @@ static int cdce925_pll_prepare(struct clk_hw *hw)
 		nn = n * BIT(p);
 		/* q = int(nn/m) */
 		q = nn / m;
-		if ((q < 16) || (1 > 64)) {
+		if ((q < 16) || (q > 63)) {
 			pr_debug("%s invalid q=%d\n", __func__, q);
 			return -EINVAL;
 		}
-- 
2.9.3