Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "It looks like a smaller batch of clk updates this time around.

  In the core framework we just have some minor tweaks and a debugfs
  feature, so not much to see there. The driver updates are fairly well
  split between AT91 and Qualcomm clk support. Adding those two drivers
  together equals about 50% of the diffstat.

  Otherwise, the big amount of work this time was on supporting
  Broadcom's Raspberry Pi firmware clks.

  Highlights:

  Core:
   - Document clk_hw_round_rate() so it gets some more use
   - Remove unused __clk_get_flags()
   - Add a prepare/enable debugfs feature similar to rate setting

  New Drivers:
   - Add support for SAMA7G5 SoC clks
   - Enable CPU clks on Qualcomm IPQ6018 SoCs
   - Enable CPU clks on Qualcomm MSM8996 SoCs
   - GPU clk support for Qualcomm SM8150 and SM8250 SoCs
   - Audio clks on Qualcomm SC7180 SoCs
   - Microchip Sparx5 DPLL clk
   - Add support for the new Renesas RZ/G2H (R8A774E1) SoC

  Updates:
   - Make defines for bcm63xx-gate clks to use in DT
   - Support BCM2711 SoC firmware clks
   - Add HDMI clks for BCM2711 SoCs
   - Add RTC related clks on Ingenic SoCs
   - Support USB PHY clks on Ingenic SoCs
   - Support gate clks on BCM6318 SoCs
   - RMU and DMAC/GPIO clock support for Actions Semi S500 SoCs
   - Use poll_timeout functions in Rockchip clk driver
   - Support Rockchip rk3288w SoC variant
   - Mark mac_lbtest critical on Rockchip rk3188
   - Add CAAM clock support for i.MX vf610 driver
   - Add MU root clock support for i.MX imx8mp driver
   - Amlogic g12: add neural network accelerator clock sources
   - Amlogic meson8: remove critical flag for main PLL divider
   - Amlogic meson8: add video decoder clock gates
   - Convert one more Renesas DT binding to json-schema
   - Enhance critical clock handling on Renesas platforms to only
     consider clocks that were enabled at boot time"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (79 commits)
  clk: qcom: gcc: Make disp gpll0 branch aon for sc7180/sdm845
  ipq806x: gcc: add support for child probe
  clk: qcom: msm8996: Make symbol 'cpu_msm8996_clks' static
  clk: qcom: ipq8074: Add correct index for PCIe clocks
  clk: <linux/clk-provider.h>: drop a duplicated word
  clk: renesas: cpg-mssr: Add r8a774e1 support
  dt-bindings: clock: renesas,cpg-mssr: Document r8a774e1
  clk: Drop duplicate selection in Kconfig
  clk: qcom: smd: Add support for MSM8992/4 rpm clocks
  clk: qcom: ipq8074: Add missing clocks for pcie
  dt-bindings: clock: qcom: ipq8074: Add missing bindings for PCIe
  Replace HTTP links with HTTPS ones: Common CLK framework
  clk: qcom: Add CPU clock driver for msm8996
  dt-bindings: clk: qcom: Add bindings for CPU clock for msm8996
  soc: qcom: Separate kryo l2 accessors from PMU driver
  clk: meson: meson8b: add the vclk2_en gate clock
  clk: meson: meson8b: add the vclk_en gate clock
  clk: qcom: Fix return value check in apss_ipq6018_probe()
  clk: bcm: dvp: Add missing module informations
  clk: meson: meson8b: Drop CLK_IS_CRITICAL from fclk_div2
  ...

1 files changed, 124 insertions, 0 deletions

diff --git a/drivers/clk/bcm/clk-bcm2711-dvp.c b/drivers/clk/bcm/clk-bcm2711-dvp.c
new file mode 100644
index 000000000000..8333e20dc9d2
--- /dev/null
+++ b/drivers/clk/bcm/clk-bcm2711-dvp.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright 2020 Cerno
+
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/reset-controller.h>
+#include <linux/reset/reset-simple.h>
+
+#define DVP_HT_RPI_SW_INIT	0x04
+#define DVP_HT_RPI_MISC_CONFIG	0x08
+
+#define NR_CLOCKS	2
+#define NR_RESETS	6
+
+struct clk_dvp {
+	struct clk_hw_onecell_data	*data;
+	struct reset_simple_data	reset;
+};
+
+static const struct clk_parent_data clk_dvp_parent = {
+	.index	= 0,
+};
+
+static int clk_dvp_probe(struct platform_device *pdev)
+{
+	struct clk_hw_onecell_data *data;
+	struct resource *res;
+	struct clk_dvp *dvp;
+	void __iomem *base;
+	int ret;
+
+	dvp = devm_kzalloc(&pdev->dev, sizeof(*dvp), GFP_KERNEL);
+	if (!dvp)
+		return -ENOMEM;
+	platform_set_drvdata(pdev, dvp);
+
+	dvp->data = devm_kzalloc(&pdev->dev,
+				 struct_size(dvp->data, hws, NR_CLOCKS),
+				 GFP_KERNEL);
+	if (!dvp->data)
+		return -ENOMEM;
+	data = dvp->data;
+
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	dvp->reset.rcdev.owner = THIS_MODULE;
+	dvp->reset.rcdev.nr_resets = NR_RESETS;
+	dvp->reset.rcdev.ops = &reset_simple_ops;
+	dvp->reset.rcdev.of_node = pdev->dev.of_node;
+	dvp->reset.membase = base + DVP_HT_RPI_SW_INIT;
+	spin_lock_init(&dvp->reset.lock);
+
+	ret = devm_reset_controller_register(&pdev->dev, &dvp->reset.rcdev);
+	if (ret)
+		return ret;
+
+	data->hws[0] = clk_hw_register_gate_parent_data(&pdev->dev,
+							"hdmi0-108MHz",
+							&clk_dvp_parent, 0,
+							base + DVP_HT_RPI_MISC_CONFIG, 3,
+							CLK_GATE_SET_TO_DISABLE,
+							&dvp->reset.lock);
+	if (IS_ERR(data->hws[0]))
+		return PTR_ERR(data->hws[0]);
+
+	data->hws[1] = clk_hw_register_gate_parent_data(&pdev->dev,
+							"hdmi1-108MHz",
+							&clk_dvp_parent, 0,
+							base + DVP_HT_RPI_MISC_CONFIG, 4,
+							CLK_GATE_SET_TO_DISABLE,
+							&dvp->reset.lock);
+	if (IS_ERR(data->hws[1])) {
+		ret = PTR_ERR(data->hws[1]);
+		goto unregister_clk0;
+	}
+
+	data->num = NR_CLOCKS;
+	ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get,
+				     data);
+	if (ret)
+		goto unregister_clk1;
+
+	return 0;
+
+unregister_clk1:
+	clk_hw_unregister_gate(data->hws[1]);
+
+unregister_clk0:
+	clk_hw_unregister_gate(data->hws[0]);
+	return ret;
+};
+
+static int clk_dvp_remove(struct platform_device *pdev)
+{
+	struct clk_dvp *dvp = platform_get_drvdata(pdev);
+	struct clk_hw_onecell_data *data = dvp->data;
+
+	clk_hw_unregister_gate(data->hws[1]);
+	clk_hw_unregister_gate(data->hws[0]);
+
+	return 0;
+}
+
+static const struct of_device_id clk_dvp_dt_ids[] = {
+	{ .compatible = "brcm,brcm2711-dvp", },
+	{ /* sentinel */ }
+};
+
+static struct platform_driver clk_dvp_driver = {
+	.probe	= clk_dvp_probe,
+	.remove	= clk_dvp_remove,
+	.driver	= {
+		.name		= "brcm2711-dvp",
+		.of_match_table	= clk_dvp_dt_ids,
+	},
+};
+module_platform_driver(clk_dvp_driver);
+
+MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>");
+MODULE_DESCRIPTION("BCM2711 DVP clock driver");
+MODULE_LICENSE("GPL");