summaryrefslogtreecommitdiff
path: root/drivers/clk
diff options
context:
space:
mode:
authorGeorgi Djakov <georgi.djakov@linaro.org>2016-11-23 17:52:48 +0300
committerStephen Boyd <sboyd@codeaurora.org>2016-11-23 22:12:47 +0300
commit81b7667aace061c6edd57d2fadd70374ceda2c81 (patch)
tree1f3febd10a2fd1585beaf26b7a7888b139b3c3c8 /drivers/clk
parent5f5001a978fc966974b136c00cfb2134edd3f2bd (diff)
downloadlinux-81b7667aace061c6edd57d2fadd70374ceda2c81.tar.xz
clk: qcom: clk-smd-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>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/qcom/clk-smd-rpm.c36
1 files changed, 22 insertions, 14 deletions
diff --git a/drivers/clk/qcom/clk-smd-rpm.c b/drivers/clk/qcom/clk-smd-rpm.c
index a27013dbc0aa..07e2cc6ed781 100644
--- a/drivers/clk/qcom/clk-smd-rpm.c
+++ b/drivers/clk/qcom/clk-smd-rpm.c
@@ -148,8 +148,8 @@ struct clk_smd_rpm_req {
struct rpm_cc {
struct qcom_rpm *rpm;
- struct clk_hw_onecell_data data;
- struct clk_hw *hws[];
+ struct clk_smd_rpm **clks;
+ size_t num_clks;
};
struct rpm_smd_clk_desc {
@@ -468,11 +468,23 @@ static const struct of_device_id rpm_smd_clk_match_table[] = {
};
MODULE_DEVICE_TABLE(of, rpm_smd_clk_match_table);
+static struct clk_hw *qcom_smdrpm_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_smd_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_smd_rpm *rpm;
@@ -492,14 +504,12 @@ static int rpm_smd_clk_probe(struct platform_device *pdev)
rpm_smd_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_smd_clks;
+ rcc->num_clks = num_clks;
for (i = 0; i < num_clks; i++) {
if (!rpm_smd_clks[i])
@@ -517,18 +527,16 @@ static int rpm_smd_clk_probe(struct platform_device *pdev)
goto err;
for (i = 0; i < num_clks; i++) {
- if (!rpm_smd_clks[i]) {
- data->hws[i] = ERR_PTR(-ENOENT);
+ if (!rpm_smd_clks[i])
continue;
- }
ret = devm_clk_hw_register(&pdev->dev, &rpm_smd_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_smdrpm_clk_hw_get,
+ rcc);
if (ret)
goto err;