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Diffstat (limited to 'target/linux/ipq806x/patches-4.4/012-3-clk-qcom-clk-rpm-Fix-clk_hw-references.patch')
-rw-r--r--target/linux/ipq806x/patches-4.4/012-3-clk-qcom-clk-rpm-Fix-clk_hw-references.patch94
1 files changed, 94 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-4.4/012-3-clk-qcom-clk-rpm-Fix-clk_hw-references.patch b/target/linux/ipq806x/patches-4.4/012-3-clk-qcom-clk-rpm-Fix-clk_hw-references.patch
new file mode 100644
index 0000000000..e5c1870eab
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/012-3-clk-qcom-clk-rpm-Fix-clk_hw-references.patch
@@ -0,0 +1,94 @@
+From c260524aba53b57f72b5446ed553080df30b4d09 Mon Sep 17 00:00:00 2001
+From: Georgi Djakov <georgi.djakov@linaro.org>
+Date: Wed, 23 Nov 2016 16:52:49 +0200
+Subject: clk: qcom: clk-rpm: Fix clk_hw references
+
+Fix the clk_hw references to the actual clocks and add a xlate function
+to return the hw pointers from the already existing static array.
+
+Reported-by: Michael Scott <michael.scott@linaro.org>
+Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
+Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
+---
+ drivers/clk/qcom/clk-rpm.c | 36 ++++++++++++++++++++++--------------
+ 1 file changed, 22 insertions(+), 14 deletions(-)
+
+--- a/drivers/clk/qcom/clk-rpm.c
++++ b/drivers/clk/qcom/clk-rpm.c
+@@ -127,8 +127,8 @@ struct clk_rpm {
+
+ struct rpm_cc {
+ struct qcom_rpm *rpm;
+- struct clk_hw_onecell_data data;
+- struct clk_hw *hws[];
++ struct clk_rpm **clks;
++ size_t num_clks;
+ };
+
+ struct rpm_clk_desc {
+@@ -391,11 +391,23 @@ static const struct of_device_id rpm_clk
+ };
+ MODULE_DEVICE_TABLE(of, rpm_clk_match_table);
+
++static struct clk_hw *qcom_rpm_clk_hw_get(struct of_phandle_args *clkspec,
++ void *data)
++{
++ struct rpm_cc *rcc = data;
++ unsigned int idx = clkspec->args[0];
++
++ if (idx >= rcc->num_clks) {
++ pr_err("%s: invalid index %u\n", __func__, idx);
++ return ERR_PTR(-EINVAL);
++ }
++
++ return rcc->clks[idx] ? &rcc->clks[idx]->hw : ERR_PTR(-ENOENT);
++}
++
+ static int rpm_clk_probe(struct platform_device *pdev)
+ {
+- struct clk_hw **hws;
+ struct rpm_cc *rcc;
+- struct clk_hw_onecell_data *data;
+ int ret;
+ size_t num_clks, i;
+ struct qcom_rpm *rpm;
+@@ -415,14 +427,12 @@ static int rpm_clk_probe(struct platform
+ rpm_clks = desc->clks;
+ num_clks = desc->num_clks;
+
+- rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc) + sizeof(*hws) * num_clks,
+- GFP_KERNEL);
++ rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc), GFP_KERNEL);
+ if (!rcc)
+ return -ENOMEM;
+
+- hws = rcc->hws;
+- data = &rcc->data;
+- data->num = num_clks;
++ rcc->clks = rpm_clks;
++ rcc->num_clks = num_clks;
+
+ for (i = 0; i < num_clks; i++) {
+ if (!rpm_clks[i])
+@@ -436,18 +446,16 @@ static int rpm_clk_probe(struct platform
+ }
+
+ for (i = 0; i < num_clks; i++) {
+- if (!rpm_clks[i]) {
+- data->hws[i] = ERR_PTR(-ENOENT);
++ if (!rpm_clks[i])
+ continue;
+- }
+
+ ret = devm_clk_hw_register(&pdev->dev, &rpm_clks[i]->hw);
+ if (ret)
+ goto err;
+ }
+
+- ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get,
+- data);
++ ret = of_clk_add_hw_provider(pdev->dev.of_node, qcom_rpm_clk_hw_get,
++ rcc);
+ if (ret)
+ goto err;
+