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Thu, 21 Apr 2016 22:22:08 +0000 (UTC) From: Stephen Boyd To: Michael Turquette , Stephen Boyd Subject: [PATCH v2 13/13] clk: qcom: Migrate to clk_hw based registration and OF APIs Date: Thu, 21 Apr 2016 15:22:04 -0700 Message-Id: <1461277324-27185-14-git-send-email-sboyd@codeaurora.org> X-Mailer: git-send-email 2.6.3.369.g91ad409 In-Reply-To: <1461277324-27185-1-git-send-email-sboyd@codeaurora.org> References: <1461277324-27185-1-git-send-email-sboyd@codeaurora.org> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160421_152248_758268_EC7F7720 X-CRM114-Status: GOOD ( 18.51 ) X-Spam-Score: -2.9 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Stephen Boyd --- drivers/clk/qcom/clk-regmap.c | 5 ++-- drivers/clk/qcom/clk-regmap.h | 3 +-- drivers/clk/qcom/common.c | 58 +++++++++++++++++++++++------------------ drivers/clk/qcom/gcc-msm8996.c | 9 +++---- drivers/clk/qcom/mmcc-msm8996.c | 9 +++---- 5 files changed, 43 insertions(+), 41 deletions(-) diff --git a/drivers/clk/qcom/clk-regmap.c b/drivers/clk/qcom/clk-regmap.c index a58ba39a900c..1c856d330733 100644 --- a/drivers/clk/qcom/clk-regmap.c +++ b/drivers/clk/qcom/clk-regmap.c @@ -101,14 +101,13 @@ EXPORT_SYMBOL_GPL(clk_disable_regmap); * clk_regmap struct via this function so that the regmap is initialized * and so that the clock is registered with the common clock framework. */ -struct clk *devm_clk_register_regmap(struct device *dev, - struct clk_regmap *rclk) +int devm_clk_register_regmap(struct device *dev, struct clk_regmap *rclk) { if (dev && dev_get_regmap(dev, NULL)) rclk->regmap = dev_get_regmap(dev, NULL); else if (dev && dev->parent) rclk->regmap = dev_get_regmap(dev->parent, NULL); - return devm_clk_register(dev, &rclk->hw); + return devm_clk_hw_register(dev, &rclk->hw); } EXPORT_SYMBOL_GPL(devm_clk_register_regmap); diff --git a/drivers/clk/qcom/clk-regmap.h b/drivers/clk/qcom/clk-regmap.h index 491a63d537df..90d95cd11ec6 100644 --- a/drivers/clk/qcom/clk-regmap.h +++ b/drivers/clk/qcom/clk-regmap.h @@ -39,7 +39,6 @@ struct clk_regmap { int clk_is_enabled_regmap(struct clk_hw *hw); int clk_enable_regmap(struct clk_hw *hw); void clk_disable_regmap(struct clk_hw *hw); -struct clk * -devm_clk_register_regmap(struct device *dev, struct clk_regmap *rclk); +int devm_clk_register_regmap(struct device *dev, struct clk_regmap *rclk); #endif diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c index f7c226ab4307..fffcbaf0fba7 100644 --- a/drivers/clk/qcom/common.c +++ b/drivers/clk/qcom/common.c @@ -27,8 +27,8 @@ struct qcom_cc { struct qcom_reset_controller reset; - struct clk_onecell_data data; - struct clk *clks[]; + struct clk_regmap **rclks; + size_t num_rclks; }; const @@ -102,8 +102,8 @@ static int _qcom_cc_register_board_clk(struct device *dev, const char *path, struct device_node *clocks_node; struct clk_fixed_factor *factor; struct clk_fixed_rate *fixed; - struct clk *clk; struct clk_init_data init_data = { }; + int ret; clocks_node = of_find_node_by_path("/clocks"); if (clocks_node) @@ -121,9 +121,9 @@ static int _qcom_cc_register_board_clk(struct device *dev, const char *path, init_data.name = path; init_data.ops = &clk_fixed_rate_ops; - clk = devm_clk_register(dev, &fixed->hw); - if (IS_ERR(clk)) - return PTR_ERR(clk); + ret = devm_clk_hw_register(dev, &fixed->hw); + if (ret) + return ret; } of_node_put(node); @@ -141,9 +141,9 @@ static int _qcom_cc_register_board_clk(struct device *dev, const char *path, init_data.flags = 0; init_data.ops = &clk_fixed_factor_ops; - clk = devm_clk_register(dev, &factor->hw); - if (IS_ERR(clk)) - return PTR_ERR(clk); + ret = devm_clk_hw_register(dev, &factor->hw); + if (ret) + return ret; } return 0; @@ -174,42 +174,48 @@ int qcom_cc_register_sleep_clk(struct device *dev) } EXPORT_SYMBOL_GPL(qcom_cc_register_sleep_clk); +static struct clk_hw *qcom_cc_clk_hw_get(struct of_phandle_args *clkspec, + void *data) +{ + struct qcom_cc *cc = data; + unsigned int idx = clkspec->args[0]; + + if (idx >= cc->num_rclks) { + pr_err("%s: invalid index %u\n", __func__, idx); + return ERR_PTR(-EINVAL); + } + + return cc->rclks[idx] ? &cc->rclks[idx]->hw : ERR_PTR(-ENOENT); +} + int qcom_cc_really_probe(struct platform_device *pdev, const struct qcom_cc_desc *desc, struct regmap *regmap) { int i, ret; struct device *dev = &pdev->dev; - struct clk *clk; - struct clk_onecell_data *data; - struct clk **clks; struct qcom_reset_controller *reset; struct qcom_cc *cc; struct gdsc_desc *scd; size_t num_clks = desc->num_clks; struct clk_regmap **rclks = desc->clks; - cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*clks) * num_clks, - GFP_KERNEL); + cc = devm_kzalloc(dev, sizeof(*cc), GFP_KERNEL); if (!cc) return -ENOMEM; - clks = cc->clks; - data = &cc->data; - data->clks = clks; - data->clk_num = num_clks; + cc->rclks = rclks; + cc->num_rclks = num_clks; for (i = 0; i < num_clks; i++) { - if (!rclks[i]) { - clks[i] = ERR_PTR(-ENOENT); + if (!rclks[i]) continue; - } - clk = devm_clk_register_regmap(dev, rclks[i]); - if (IS_ERR(clk)) - return PTR_ERR(clk); - clks[i] = clk; + + ret = devm_clk_register_regmap(dev, rclks[i]); + if (ret) + return ret; } - ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, data); + ret = of_clk_add_hw_provider(dev->of_node, qcom_cc_clk_hw_get, cc); if (ret) return ret; diff --git a/drivers/clk/qcom/gcc-msm8996.c b/drivers/clk/qcom/gcc-msm8996.c index c9b96f318d9c..7a6fd069ba5d 100644 --- a/drivers/clk/qcom/gcc-msm8996.c +++ b/drivers/clk/qcom/gcc-msm8996.c @@ -3463,9 +3463,8 @@ MODULE_DEVICE_TABLE(of, gcc_msm8996_match_table); static int gcc_msm8996_probe(struct platform_device *pdev) { - struct clk *clk; struct device *dev = &pdev->dev; - int i; + int i, ret; struct regmap *regmap; regmap = qcom_cc_map(pdev, &gcc_msm8996_desc); @@ -3479,9 +3478,9 @@ static int gcc_msm8996_probe(struct platform_device *pdev) regmap_update_bits(regmap, 0x52008, BIT(21), BIT(21)); for (i = 0; i < ARRAY_SIZE(gcc_msm8996_hws); i++) { - clk = devm_clk_register(dev, gcc_msm8996_hws[i]); - if (IS_ERR(clk)) - return PTR_ERR(clk); + ret = devm_clk_hw_register(dev, gcc_msm8996_hws[i]); + if (ret) + return ret; } return qcom_cc_really_probe(pdev, &gcc_msm8996_desc, regmap); diff --git a/drivers/clk/qcom/mmcc-msm8996.c b/drivers/clk/qcom/mmcc-msm8996.c index 6df7ff36b416..e21f76817827 100644 --- a/drivers/clk/qcom/mmcc-msm8996.c +++ b/drivers/clk/qcom/mmcc-msm8996.c @@ -3337,9 +3337,8 @@ MODULE_DEVICE_TABLE(of, mmcc_msm8996_match_table); static int mmcc_msm8996_probe(struct platform_device *pdev) { - struct clk *clk; struct device *dev = &pdev->dev; - int i; + int i, ret; struct regmap *regmap; regmap = qcom_cc_map(pdev, &mmcc_msm8996_desc); @@ -3352,9 +3351,9 @@ static int mmcc_msm8996_probe(struct platform_device *pdev) regmap_update_bits(regmap, 0x5054, BIT(15), 0); for (i = 0; i < ARRAY_SIZE(mmcc_msm8996_hws); i++) { - clk = devm_clk_register(dev, mmcc_msm8996_hws[i]); - if (IS_ERR(clk)) - return PTR_ERR(clk); + ret = devm_clk_hw_register(dev, mmcc_msm8996_hws[i]); + if (ret) + return ret; } return qcom_cc_really_probe(pdev, &mmcc_msm8996_desc, regmap);