From 39d1c90665e3ee471b3005780a7df58bb1ba622d Mon Sep 17 00:00:00 2001
From: Chunyan Zhang <chunyan.zhang@unisoc.com>
Date: Mon, 30 Mar 2020 10:16:40 +0800
Subject: [PATCH] clk: sprd: fix to get a correct ibias of pll
Git-commit: 39d1c90665e3ee471b3005780a7df58bb1ba622d
Patch-mainline: v5.7-rc1
References: git-fixes
The current driver is getting a wrong ibias index of pll clocks from
number 1. This patch fix that issue, then getting ibias index from 0.
Fixes: 3e37b005580b ("clk: sprd: add adjustable pll support")
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Link: https://lkml.kernel.org/r/20200330021640.14133-1-zhang.lyra@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/clk/sprd/pll.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/sprd/pll.c b/drivers/clk/sprd/pll.c
index 640270f51aa5..15791484388f 100644
--- a/drivers/clk/sprd/pll.c
+++ b/drivers/clk/sprd/pll.c
@@ -87,11 +87,12 @@ static u32 pll_get_ibias(u64 rate, const u64 *table)
{
u32 i, num = table[0];
- for (i = 1; i < num + 1; i++)
- if (rate <= table[i])
+ /* table[0] indicates the number of items in this table */
+ for (i = 0; i < num; i++)
+ if (rate <= table[i + 1])
break;
- return (i == num + 1) ? num : i;
+ return i == num ? num - 1 : i;
}
static unsigned long _sprd_pll_recalc_rate(const struct sprd_pll *pll,
--
2.16.4