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From: Maxime Ripard <maxime@cerno.tech>
To: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: linux-rpi-kernel@lists.infradead.org,
	bcm-kernel-feedback-list@broadcom.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Dave Stevenson <dave.stevenson@raspberrypi.com>,
	Tim Gover <tim.gover@raspberrypi.com>,
	Phil Elwell <phil@raspberrypi.com>,
	Mike Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	linux-clk@vger.kernel.org, Philipp Zabel <p.zabel@pengutronix.de>,
	Maxime Ripard <maxime@cerno.tech>
Subject: [PATCH v5 19/27] clk: bcm: rpi: Add DT provider for the clocks
Date: Mon, 15 Jun 2020 10:40:59 +0200
Message-ID: <4d8dbe4aaae98b3d3812ad7c3dba53d645cadbaf.1592210452.git-series.maxime@cerno.tech> (raw)
In-Reply-To: <cover.98f979c2af2337c57217016d21d7c68e1ac2ce8a.1592210452.git-series.maxime@cerno.tech>

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

  parent reply index

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-15  8:40 [PATCH v5 00/27] clk: bcm: rpi: Add support for BCM2711 firmware clocks Maxime Ripard
2020-06-15  8:40 ` [PATCH v5 01/27] dt-bindings: arm: bcm: Convert BCM2835 firmware binding to YAML Maxime Ripard
2020-06-25  0:42   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 02/27] dt-bindings: clock: Add a binding for the RPi Firmware clocks Maxime Ripard
2020-06-25  0:42   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 03/27] firmware: rpi: Only create clocks device if we don't have a node for it Maxime Ripard
2020-06-25  0:42   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 04/27] clk: bcm: rpi: Allow the driver to be probed by DT Maxime Ripard
2020-06-25  0:42   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 05/27] clk: bcm: rpi: Statically init clk_init_data Maxime Ripard
2020-06-25  0:42   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 06/27] clk: bcm: rpi: Use clk_hw_register for pllb_arm Maxime Ripard
2020-06-25  0:42   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 07/27] clk: bcm: rpi: Remove global pllb_arm clock pointer Maxime Ripard
2020-06-25  0:42   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 08/27] clk: bcm: rpi: Make sure pllb_arm is removed Maxime Ripard
2020-06-25  0:42   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 09/27] clk: bcm: rpi: Remove pllb_arm_lookup global pointer Maxime Ripard
2020-06-25  0:42   ` Stephen Boyd
2020-06-25  0:44   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 10/27] clk: bcm: rpi: Switch to clk_hw_register_clkdev Maxime Ripard
2020-06-25  0:44   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 11/27] clk: bcm: rpi: Make sure the clkdev lookup is removed Maxime Ripard
2020-06-25  0:44   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 12/27] clk: bcm: rpi: Use CCF boundaries instead of rolling our own Maxime Ripard
2020-06-25  0:44   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 13/27] clk: bcm: rpi: Create a data structure for the clocks Maxime Ripard
2020-06-25  0:44   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 14/27] clk: bcm: rpi: Add clock id to data Maxime Ripard
2020-06-25  0:45   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 15/27] clk: bcm: rpi: Pass the clocks data to the firmware function Maxime Ripard
2020-06-25  0:45   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 16/27] clk: bcm: rpi: Rename is_prepared function Maxime Ripard
2020-06-25  0:45   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 17/27] clk: bcm: rpi: Split pllb clock hooks Maxime Ripard
2020-06-25  0:45   ` Stephen Boyd
2020-06-15  8:40 ` [PATCH v5 18/27] clk: bcm: rpi: Make the PLLB registration function return a clk_hw Maxime Ripard
2020-06-25  0:45   ` Stephen Boyd
2020-06-15  8:40 ` Maxime Ripard [this message]
2020-06-25  0:45   ` [PATCH v5 19/27] clk: bcm: rpi: Add DT provider for the clocks Stephen Boyd
2020-06-15  8:41 ` [PATCH v5 20/27] clk: bcm: rpi: Add an enum for the firmware clocks Maxime Ripard
2020-06-25  0:45   ` Stephen Boyd
2020-06-15  8:41 ` [PATCH v5 21/27] clk: bcm: rpi: Discover " Maxime Ripard
2020-06-25  0:45   ` Stephen Boyd
2020-06-15  8:41 ` [PATCH v5 22/27] clk: bcm: rpi: Give firmware clocks a name Maxime Ripard
2020-06-25  0:45   ` Stephen Boyd
2020-06-15  8:41 ` [PATCH v5 23/27] Revert "clk: bcm2835: remove pllb" Maxime Ripard
2020-06-25  0:45   ` Stephen Boyd
2020-06-15  8:41 ` [PATCH v5 24/27] ARM: dts: bcm2711: Add firmware clocks node Maxime Ripard
2020-06-25  8:16   ` Nicolas Saenz Julienne
2020-06-15  8:41 ` [PATCH v5 25/27] clk: bcm2835: Allow custom CCF flags for the PLLs Maxime Ripard
2020-06-25  0:46   ` Stephen Boyd
2020-06-15  8:41 ` [PATCH v5 26/27] clk: bcm2835: Don't cache the PLLB rate Maxime Ripard
2020-06-25  0:46   ` Stephen Boyd
2020-06-15  8:41 ` [PATCH v5 27/27] clk: bcm: rpi: Remove the quirks for the CPU clock Maxime Ripard
2020-06-25  0:46   ` Stephen Boyd
2020-06-19  9:37 ` [PATCH v5 00/27] clk: bcm: rpi: Add support for BCM2711 firmware clocks Stephen Boyd
2020-06-19  9:44   ` Nicolas Saenz Julienne
2020-06-19 23:57     ` Stephen Boyd
2020-06-20  0:20       ` Stephen Boyd
2020-06-25  0:40         ` Stephen Boyd
2020-06-19 11:52   ` Maxime Ripard
2020-06-19 23:57     ` Stephen Boyd
2020-06-25  1:15 ` Stephen Boyd

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