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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;
|
