diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-rpi-Add-DT-provider-for-the-clocks.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-rpi-Add-DT-provider-for-the-clocks.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-rpi-Add-DT-provider-for-the-clocks.patch b/target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-rpi-Add-DT-provider-for-the-clocks.patch new file mode 100644 index 0000000000..99fdf8fbd6 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-rpi-Add-DT-provider-for-the-clocks.patch @@ -0,0 +1,67 @@ +From 19f7515528fbd1dc0d45e4b5ce6531c1406fc8d8 Mon Sep 17 00:00:00 2001 +From: Maxime Ripard <maxime@cerno.tech> +Date: Fri, 7 Feb 2020 17:03:46 +0100 +Subject: [PATCH] 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 +Reviewed-by: Stephen Boyd <sboyd@kernel.org> +Signed-off-by: Maxime Ripard <maxime@cerno.tech> +--- + drivers/clk/bcm/clk-raspberrypi.c | 16 ++++++++++++++++ + 1 file changed, 16 insertions(+) + +--- 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; +@@ -285,11 +287,13 @@ static struct clk_hw *raspberrypi_regist + + 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; + + firmware_node = of_parse_phandle(dev->of_node, "raspberrypi,firmware", 0); + if (!firmware_node) { +@@ -309,6 +313,11 @@ static int raspberrypi_clk_probe(struct + 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 +327,13 @@ static int raspberrypi_clk_probe(struct + 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); |