diff options
| author | Neil Armstrong <narmstrong@baylibre.com> | 2019-03-27 16:13:48 +0100 |
|---|---|---|
| committer | Neil Armstrong <narmstrong@baylibre.com> | 2019-03-29 09:41:30 +0100 |
| commit | 6620f45ff8519549a6877663f965c10002918dc2 (patch) | |
| tree | c90645d295befb0454a9a4da9de57c7a1928ee70 | |
| parent | clk: meson: pll: fix rounding and setting a rate that matches precisely (diff) | |
| download | linux-6620f45ff8519549a6877663f965c10002918dc2.tar.xz linux-6620f45ff8519549a6877663f965c10002918dc2.zip | |
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
| -rw-r--r-- | drivers/clk/meson/vid-pll-div.c | 4 |
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); |