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extres: clk: Fix clk_set_assigned

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ofw_bus_parse_xref_list_get_length doesn't returns the number of elements, fix this.
While here when setting the clock to the assigned freqeuncy, allow the clock
driver to round down or up the frequency as sometimes the exact frequency cannot
be obtain.
This commit is contained in:
Emmanuel Vadot 2018-11-29 19:06:05 +00:00
parent 55d5c94943
commit baec4d5985
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=341254
1 changed files with 4 additions and 4 deletions
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8
sys/dev/extres/clk/clk.c
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@ -1297,7 +1297,7 @@ clk_set_assigned_rates(device_t dev, clk_t clk, uint32_t freq)
{
int rv;
rv = clk_set_freq(clk, freq, 0);
rv = clk_set_freq(clk, freq, CLK_SET_ROUND_DOWN | CLK_SET_ROUND_UP);
if (rv != 0) {
device_printf(dev, "Failed to set %s to a frequency of %u\n",
clk_get_name(clk), freq);
@ -1330,9 +1330,9 @@ clk_set_assigned(device_t dev, phandle_t node)
if (nrates <= 0)
nrates = 0;
nparents = ofw_bus_parse_xref_list_get_length(node,
"assigned-clock-parents", "#clock-cells", &nparents);
if (ofw_bus_parse_xref_list_get_length(node,
"assigned-clock-parents", "#clock-cells", &nparents) != 0)
nparents = -1;
for (i = 0; i < nclocks; i++) {
/* First get the clock we are supposed to modify */
rv = clk_get_by_ofw_index_prop(dev, 0, "assigned-clocks",