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    Subject[PATCH v5 19/27] clk: bcm: rpi: Add DT provider for the clocks
    Date
    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>
    ---
    drivers/clk/bcm/clk-raspberrypi.c | 16 ++++++++++++++++
    1 file changed, 16 insertions(+)

    diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c
    index d2cb90c086a7..5f4e2d49432f 100644
    --- a/drivers/clk/bcm/clk-raspberrypi.c
    +++ b/drivers/clk/bcm/clk-raspberrypi.c
    @@ -31,6 +31,8 @@

    #define A2W_PLL_FRAC_BITS 20

    +#define NUM_FW_CLKS 16
    +
    struct raspberrypi_clk {
    struct device *dev;
    struct rpi_firmware *firmware;
    @@ -282,11 +284,13 @@ static struct clk_hw *raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi)

    static int raspberrypi_clk_probe(struct platform_device *pdev)
    {
    + struct clk_hw_onecell_data *clk_data;
    struct device_node *firmware_node;
    struct device *dev = &pdev->dev;
    struct rpi_firmware *firmware;
    struct raspberrypi_clk *rpi;
    struct clk_hw *hw;
    + int ret;

    /*
    * We can be probed either through the an old-fashioned
    @@ -316,6 +320,11 @@ static int raspberrypi_clk_probe(struct platform_device *pdev)
    rpi->firmware = firmware;
    platform_set_drvdata(pdev, rpi);

    + clk_data = devm_kzalloc(dev, struct_size(clk_data, hws, NUM_FW_CLKS),
    + GFP_KERNEL);
    + if (!clk_data)
    + return -ENOMEM;
    +
    hw = raspberrypi_register_pllb(rpi);
    if (IS_ERR(hw)) {
    dev_err(dev, "Failed to initialize pllb, %ld\n", PTR_ERR(hw));
    @@ -325,6 +334,13 @@ static int raspberrypi_clk_probe(struct platform_device *pdev)
    hw = raspberrypi_register_pllb_arm(rpi);
    if (IS_ERR(hw))
    return PTR_ERR(hw);
    + clk_data->hws[RPI_FIRMWARE_ARM_CLK_ID] = hw;
    + clk_data->num = RPI_FIRMWARE_ARM_CLK_ID + 1;
    +
    + ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
    + clk_data);
    + if (ret)
    + return ret;

    rpi->cpufreq = platform_device_register_data(dev, "raspberrypi-cpufreq",
    -1, NULL, 0);
    --
    git-series 0.9.1
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