clk: bcm: rpi: Add DT provider for the clocks
For the upcoming registration of the clocks provided by the firmware, make sure it's exposed to the device tree providers. Cc: Michael Turquette <mturquette@baylibre.com> Cc: linux-clk@vger.kernel.org Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/4d8dbe4aaae98b3d3812ad7c3dba53d645cadbaf.1592210452.git-series.maxime@cerno.tech Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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@ -31,6 +31,8 @@
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#define A2W_PLL_FRAC_BITS 20
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#define NUM_FW_CLKS 16
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struct raspberrypi_clk {
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struct device *dev;
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struct rpi_firmware *firmware;
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@ -282,11 +284,13 @@ static struct clk_hw *raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi)
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static int raspberrypi_clk_probe(struct platform_device *pdev)
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{
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struct clk_hw_onecell_data *clk_data;
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struct device_node *firmware_node;
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struct device *dev = &pdev->dev;
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struct rpi_firmware *firmware;
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struct raspberrypi_clk *rpi;
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struct clk_hw *hw;
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int ret;
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/*
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* We can be probed either through the an old-fashioned
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@ -316,6 +320,11 @@ static int raspberrypi_clk_probe(struct platform_device *pdev)
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rpi->firmware = firmware;
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platform_set_drvdata(pdev, rpi);
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clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, NUM_FW_CLKS),
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GFP_KERNEL);
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if (!clk_data)
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return -ENOMEM;
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hw = raspberrypi_register_pllb(rpi);
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if (IS_ERR(hw)) {
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dev_err(dev, "Failed to initialize pllb, %ld\n", PTR_ERR(hw));
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@ -325,6 +334,13 @@ static int raspberrypi_clk_probe(struct platform_device *pdev)
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hw = raspberrypi_register_pllb_arm(rpi);
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if (IS_ERR(hw))
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return PTR_ERR(hw);
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clk_data->hws[RPI_FIRMWARE_ARM_CLK_ID] = hw;
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clk_data->num = RPI_FIRMWARE_ARM_CLK_ID + 1;
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ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
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clk_data);
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if (ret)
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return ret;
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rpi->cpufreq = platform_device_register_data(dev, "raspberrypi-cpufreq",
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-1, NULL, 0);
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