From b06c698716476dffb9537b06b0406a55d6fe4cd8 Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Thu, 12 Dec 2013 17:07:20 +0100 Subject: clk: max77686: Register OF clock provider If max77686 chip is instantiated from device tree, it is desirable to have an OF clock provider to allow device tree based look-up of clocks. This patch adds OF clock provider registration to the clk-max77686 driver. Signed-off-by: Tomasz Figa Acked-by: Kyungmin Park Signed-off-by: Mike Turquette --- drivers/clk/clk-max77686.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/clk/clk-max77686.c') diff --git a/drivers/clk/clk-max77686.c b/drivers/clk/clk-max77686.c index 3cf38dc..3d7e8dd 100644 --- a/drivers/clk/clk-max77686.c +++ b/drivers/clk/clk-max77686.c @@ -169,6 +169,26 @@ static int max77686_clk_probe(struct platform_device *pdev) platform_set_drvdata(pdev, clocks); + if (iodev->dev->of_node) { + struct clk_onecell_data *of_data; + + of_data = devm_kzalloc(&pdev->dev, + sizeof(*of_data), GFP_KERNEL); + if (!of_data) { + ret = -ENOMEM; + goto err_clocks; + } + + of_data->clks = clocks; + of_data->clk_num = MAX77686_CLKS_NUM; + ret = of_clk_add_provider(iodev->dev->of_node, + of_clk_src_onecell_get, of_data); + if (ret) { + dev_err(&pdev->dev, "failed to register OF clock provider\n"); + goto err_clocks; + } + } + return 0; err_clocks: @@ -182,9 +202,13 @@ err_clocks: static int max77686_clk_remove(struct platform_device *pdev) { + struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); struct clk **clocks = platform_get_drvdata(pdev); int i; + if (iodev->dev->of_node) + of_clk_del_provider(iodev->dev->of_node); + for (i = 0; i < MAX77686_CLKS_NUM; i++) { struct clk_hw *hw = __clk_get_hw(clocks[i]); struct max77686_clk *max77686 = to_max77686_clk(hw); -- cgit v1.1