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@xxxxxxxxxxxx>
Cc: Stephen Boyd <sboyd@xxxxxxxxxx>
Cc: linux-clk@xxxxxxxxxxxxxxx
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
drivers/clk/bcm/clk-raspberrypi.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c
index db5de9073930..3f21888a3e3e 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;
@@ -285,6 +287,7 @@ 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;
@@ -309,6 +312,11 @@ 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));
@@ -318,6 +326,13 @@ 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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