From 81b7667aace061c6edd57d2fadd70374ceda2c81 Mon Sep 17 00:00:00 2001 From: Georgi Djakov Date: Wed, 23 Nov 2016 16:52:48 +0200 Subject: [PATCH] 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 Signed-off-by: Georgi Djakov Signed-off-by: Stephen Boyd --- drivers/clk/qcom/clk-smd-rpm.c | 36 ++++++++++++++++++++++-------------- 1 file changed, 22 insertions(+), 14 deletions(-) diff --git a/drivers/clk/qcom/clk-smd-rpm.c b/drivers/clk/qcom/clk-smd-rpm.c index a27013d..07e2cc6 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; -- 2.7.4