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authorOtavio Salvador <otavio@ossystems.com.br>2020-05-20 08:43:03 -0300
committerGitHub <noreply@github.com>2020-05-20 08:43:03 -0300
commit1279cd128bba968ebe0a2df7f7ae38bae90250ef (patch)
treedf6b1a190760f51465122ca4c13492d5ac5984c6 /drivers/clk/qcom/clk-rcg2.c
parent0a8ab17689e628c84a666195bfc6ab85d11cf057 (diff)
parent2ae782ca839e0ee07de37122ddea362adff2e975 (diff)
Merge pull request #76 from toradex/4.9-2.3.x-imx
4.9 2.3.x imx
Diffstat (limited to 'drivers/clk/qcom/clk-rcg2.c')
-rw-r--r--drivers/clk/qcom/clk-rcg2.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c
index a071bba8018c..29abb600d7e1 100644
--- a/drivers/clk/qcom/clk-rcg2.c
+++ b/drivers/clk/qcom/clk-rcg2.c
@@ -107,7 +107,7 @@ static int update_config(struct clk_rcg2 *rcg)
}
WARN(1, "%s: rcg didn't update its configuration.", name);
- return 0;
+ return -EBUSY;
}
static int clk_rcg2_set_parent(struct clk_hw *hw, u8 index)
@@ -194,8 +194,13 @@ static int _freq_tbl_determine_rate(struct clk_hw *hw,
clk_flags = clk_hw_get_flags(hw);
p = clk_hw_get_parent_by_index(hw, index);
+ if (!p)
+ return -EINVAL;
+
if (clk_flags & CLK_SET_RATE_PARENT) {
if (f->pre_div) {
+ if (!rate)
+ rate = req->rate;
rate /= 2;
rate *= f->pre_div + 1;
}