diff options
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.patch | 94 |
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; + |