Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "This is the main drm pull request for 4.6 kernel.

  Overall the coolest thing here for me is the nouveau maxwell signed
  firmware support from NVidia, it's taken a long while to extract this
  from them.

  I also wish the ARM vendors just designed one set of display IP, ARM
  display block proliferation is definitely increasing.

  Core:
     - drm_event cleanups
     - Internal API cleanup making mode_fixup optional.
     - Apple GMUX vga switcheroo support.
     - DP AUX testing interface

  Panel:
     - Refactoring of DSI core for use over more transports.

  New driver:
     - ARM hdlcd driver

  i915:
     - FBC/PSR (framebuffer compression, panel self refresh) enabled by default.
     - Ongoing atomic display support work
     - Ongoing runtime PM work
     - Pixel clock limit checks
     - VBT DSI description support
     - GEM fixes
     - GuC firmware scheduler enhancements

  amdkfd:
     - Deferred probing fixes to avoid make file or link ordering.

  amdgpu/radeon:
     - ACP support for i2s audio support.
     - Command Submission/GPU scheduler/GPUVM optimisations
     - Initial GPU reset support for amdgpu

  vmwgfx:
     - Support for DX10 gen mipmaps
     - Pageflipping and other fixes.

  exynos:
     - Exynos5420 SoC support for FIMD
     - Exynos5422 SoC support for MIPI-DSI

  nouveau:
     - GM20x secure boot support - adds acceleration for Maxwell GPUs.
     - GM200 support
     - GM20B clock driver support
     - Power sensors work

  etnaviv:
     - Correctness fixes for GPU cache flushing
     - Better support for i.MX6 systems.

  imx-drm:
     - VBlank IRQ support
     - Fence support
     - OF endpoint support

  msm:
     - HDMI support for 8996 (snapdragon 820)
     - Adreno 430 support
     - Timestamp queries support

  virtio-gpu:
     - Fixes for Android support.

  rockchip:
     - Add support for Innosilicion HDMI

  rcar-du:
     - Support for 4 crtcs
     - R8A7795 support
     - RCar Gen 3 support

  omapdrm:
     - HDMI interlace output support
     - dma-buf import support
     - Refactoring to remove a lot of legacy code.

  tilcdc:
     - Rewrite of pageflipping code
     - dma-buf support
     - pinctrl support

  vc4:
     - HDMI modesetting bug fixes
     - Significant 3D performance improvement.

  fsl-dcu (FreeScale):
     - Lots of fixes

  tegra:
     - Two small fixes

  sti:
     - Atomic support for planes
     - Improved HDMI support"

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (1063 commits)
  drm/amdgpu: release_pages requires linux/pagemap.h
  drm/sti: restore mode_fixup callback
  drm/amdgpu/gfx7: add MTYPE definition
  drm/amdgpu: removing BO_VAs shouldn't be interruptible
  drm/amd/powerplay: show uvd/vce power gate enablement for tonga.
  drm/amd/powerplay: show uvd/vce power gate info for fiji
  drm/amdgpu: use sched fence if possible
  drm/amdgpu: move ib.fence to job.fence
  drm/amdgpu: give a fence param to ib_free
  drm/amdgpu: include the right version of gmc header files for iceland
  drm/radeon: fix indentation.
  drm/amd/powerplay: add uvd/vce dpm enabling flag to fix the performance issue for CZ
  drm/amdgpu: switch back to 32bit hw fences v2
  drm/amdgpu: remove amdgpu_fence_is_signaled
  drm/amdgpu: drop the extra fence range check v2
  drm/amdgpu: signal fences directly in amdgpu_fence_process
  drm/amdgpu: cleanup amdgpu_fence_wait_empty v2
  drm/amdgpu: keep all fences in an RCU protected array v2
  drm/amdgpu: add number of hardware submissions to amdgpu_fence_driver_init_ring
  drm/amdgpu: RCU protected amd_sched_fence_release
  ...

1 files changed, 230 insertions, 0 deletions

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_phy.c b/drivers/gpu/drm/msm/hdmi/hdmi_phy.c
new file mode 100644
index 000000000000..534ce5b49781
--- /dev/null
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_phy.c
@@ -0,0 +1,230 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/of_device.h>
+
+#include "hdmi.h"
+
+static int msm_hdmi_phy_resource_init(struct hdmi_phy *phy)
+{
+	struct hdmi_phy_cfg *cfg = phy->cfg;
+	struct device *dev = &phy->pdev->dev;
+	int i, ret;
+
+	phy->regs = devm_kzalloc(dev, sizeof(phy->regs[0]) * cfg->num_regs,
+				 GFP_KERNEL);
+	if (!phy->regs)
+		return -ENOMEM;
+
+	phy->clks = devm_kzalloc(dev, sizeof(phy->clks[0]) * cfg->num_clks,
+				 GFP_KERNEL);
+	if (!phy->clks)
+		return -ENOMEM;
+
+	for (i = 0; i < cfg->num_regs; i++) {
+		struct regulator *reg;
+
+		reg = devm_regulator_get(dev, cfg->reg_names[i]);
+		if (IS_ERR(reg)) {
+			ret = PTR_ERR(reg);
+			dev_err(dev, "failed to get phy regulator: %s (%d)\n",
+				cfg->reg_names[i], ret);
+			return ret;
+		}
+
+		phy->regs[i] = reg;
+	}
+
+	for (i = 0; i < cfg->num_clks; i++) {
+		struct clk *clk;
+
+		clk = devm_clk_get(dev, cfg->clk_names[i]);
+		if (IS_ERR(clk)) {
+			ret = PTR_ERR(clk);
+			dev_err(dev, "failed to get phy clock: %s (%d)\n",
+				cfg->clk_names[i], ret);
+			return ret;
+		}
+
+		phy->clks[i] = clk;
+	}
+
+	return 0;
+}
+
+int msm_hdmi_phy_resource_enable(struct hdmi_phy *phy)
+{
+	struct hdmi_phy_cfg *cfg = phy->cfg;
+	struct device *dev = &phy->pdev->dev;
+	int i, ret = 0;
+
+	pm_runtime_get_sync(dev);
+
+	for (i = 0; i < cfg->num_regs; i++) {
+		ret = regulator_enable(phy->regs[i]);
+		if (ret)
+			dev_err(dev, "failed to enable regulator: %s (%d)\n",
+				cfg->reg_names[i], ret);
+	}
+
+	for (i = 0; i < cfg->num_clks; i++) {
+		ret = clk_prepare_enable(phy->clks[i]);
+		if (ret)
+			dev_err(dev, "failed to enable clock: %s (%d)\n",
+				cfg->clk_names[i], ret);
+	}
+
+	return ret;
+}
+
+void msm_hdmi_phy_resource_disable(struct hdmi_phy *phy)
+{
+	struct hdmi_phy_cfg *cfg = phy->cfg;
+	struct device *dev = &phy->pdev->dev;
+	int i;
+
+	for (i = cfg->num_clks - 1; i >= 0; i--)
+		clk_disable_unprepare(phy->clks[i]);
+
+	for (i = cfg->num_regs - 1; i >= 0; i--)
+		regulator_disable(phy->regs[i]);
+
+	pm_runtime_put_sync(dev);
+}
+
+void msm_hdmi_phy_powerup(struct hdmi_phy *phy, unsigned long int pixclock)
+{
+	if (!phy || !phy->cfg->powerup)
+		return;
+
+	phy->cfg->powerup(phy, pixclock);
+}
+
+void msm_hdmi_phy_powerdown(struct hdmi_phy *phy)
+{
+	if (!phy || !phy->cfg->powerdown)
+		return;
+
+	phy->cfg->powerdown(phy);
+}
+
+static int msm_hdmi_phy_pll_init(struct platform_device *pdev,
+			     enum hdmi_phy_type type)
+{
+	int ret;
+
+	switch (type) {
+	case MSM_HDMI_PHY_8960:
+		ret = msm_hdmi_pll_8960_init(pdev);
+		break;
+	case MSM_HDMI_PHY_8996:
+		ret = msm_hdmi_pll_8996_init(pdev);
+		break;
+	/*
+	 * we don't have PLL support for these, don't report an error for now
+	 */
+	case MSM_HDMI_PHY_8x60:
+	case MSM_HDMI_PHY_8x74:
+	default:
+		ret = 0;
+		break;
+	}
+
+	return ret;
+}
+
+static int msm_hdmi_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct hdmi_phy *phy;
+	int ret;
+
+	phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
+	if (!phy)
+		return -ENODEV;
+
+	phy->cfg = (struct hdmi_phy_cfg *)of_device_get_match_data(dev);
+	if (!phy->cfg)
+		return -ENODEV;
+
+	phy->mmio = msm_ioremap(pdev, "hdmi_phy", "HDMI_PHY");
+	if (IS_ERR(phy->mmio)) {
+		dev_err(dev, "%s: failed to map phy base\n", __func__);
+		return -ENOMEM;
+	}
+
+	phy->pdev = pdev;
+
+	ret = msm_hdmi_phy_resource_init(phy);
+	if (ret)
+		return ret;
+
+	pm_runtime_enable(&pdev->dev);
+
+	ret = msm_hdmi_phy_resource_enable(phy);
+	if (ret)
+		return ret;
+
+	ret = msm_hdmi_phy_pll_init(pdev, phy->cfg->type);
+	if (ret) {
+		dev_err(dev, "couldn't init PLL\n");
+		msm_hdmi_phy_resource_disable(phy);
+		return ret;
+	}
+
+	msm_hdmi_phy_resource_disable(phy);
+
+	platform_set_drvdata(pdev, phy);
+
+	return 0;
+}
+
+static int msm_hdmi_phy_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static const struct of_device_id msm_hdmi_phy_dt_match[] = {
+	{ .compatible = "qcom,hdmi-phy-8660",
+	  .data = &msm_hdmi_phy_8x60_cfg },
+	{ .compatible = "qcom,hdmi-phy-8960",
+	  .data = &msm_hdmi_phy_8960_cfg },
+	{ .compatible = "qcom,hdmi-phy-8974",
+	  .data = &msm_hdmi_phy_8x74_cfg },
+	{ .compatible = "qcom,hdmi-phy-8084",
+	  .data = &msm_hdmi_phy_8x74_cfg },
+	{ .compatible = "qcom,hdmi-phy-8996",
+	  .data = &msm_hdmi_phy_8996_cfg },
+	{}
+};
+
+static struct platform_driver msm_hdmi_phy_platform_driver = {
+	.probe      = msm_hdmi_phy_probe,
+	.remove     = msm_hdmi_phy_remove,
+	.driver     = {
+		.name   = "msm_hdmi_phy",
+		.of_match_table = msm_hdmi_phy_dt_match,
+	},
+};
+
+void __init msm_hdmi_phy_driver_register(void)
+{
+	platform_driver_register(&msm_hdmi_phy_platform_driver);
+}
+
+void __exit msm_hdmi_phy_driver_unregister(void)
+{
+	platform_driver_unregister(&msm_hdmi_phy_platform_driver);
+}