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authorNeil Armstrong <narmstrong@baylibre.com>2019-03-27 16:13:48 +0100
committerNeil Armstrong <narmstrong@baylibre.com>2019-03-29 09:41:30 +0100
commit6620f45ff8519549a6877663f965c10002918dc2 (patch)
treec90645d295befb0454a9a4da9de57c7a1928ee70 /drivers/clk
parentd6f987c8462ab97591fbd6ed6bea6df61d2919e5 (diff)
downloadlinux-6620f45ff8519549a6877663f965c10002918dc2.tar.bz2
clk: meson: vid-pll-div: remove warning and return 0 on invalid config
The vid_pll_div is a programmable fractional divider, but vendor gives a limited of known configuration value and it's corresponding fraction. Thus when at reset value (0) or unknown value, we cannot determine the result rate. The initial behaviour was to print a warning, but the warning triggers at each boot and when the clock tree is refreshed. This patch moves the print to debug and returns 0 instead of the parent rate. Fixes: 72dbb8c94d0d ("clk: meson: Add vid_pll divider driver") Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lkml.kernel.org/r/20190327151348.27402-1-narmstrong@baylibre.com
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/meson/vid-pll-div.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/clk/meson/vid-pll-div.c b/drivers/clk/meson/vid-pll-div.c
index 08bcc01c0923..daff235bc763 100644
--- a/drivers/clk/meson/vid-pll-div.c
+++ b/drivers/clk/meson/vid-pll-div.c
@@ -82,8 +82,8 @@ static unsigned long meson_vid_pll_div_recalc_rate(struct clk_hw *hw,
div = _get_table_val(meson_parm_read(clk->map, &pll_div->val),
meson_parm_read(clk->map, &pll_div->sel));
if (!div || !div->divider) {
- pr_info("%s: Invalid config value for vid_pll_div\n", __func__);
- return parent_rate;
+ pr_debug("%s: Invalid config value for vid_pll_div\n", __func__);
+ return 0;
}
return DIV_ROUND_UP_ULL(parent_rate * div->multiplier, div->divider);