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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>
This commit is contained in:
Maxime Ripard 2020-06-15 10:40:59 +02:00 committed by Stephen Boyd
parent 23e114b6b7
commit d4b4f1b6b9
1 changed files with 16 additions and 0 deletions
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16
drivers/clk/bcm/clk-raspberrypi.c
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@ -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);