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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-08 18:52:16 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-08 18:52:16 +0200
commite9f37d3a8d126e73f5737ef548cdf6f618e295e4 (patch)
tree831eb4952637828a7bbafa361185e0ca57aa86ed /drivers/gpu/drm/gma500/gma_device.c
parentinclude/linux/syscalls.h: add sys_renameat2() prototype (diff)
parentDRM: armada: fix corruption while loading cursors (diff)
downloadlinux-e9f37d3a8d126e73f5737ef548cdf6f618e295e4.tar.xz
linux-e9f37d3a8d126e73f5737ef548cdf6f618e295e4.zip
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie: "Highlights: - drm: Generic display port aux features, primary plane support, drm master management fixes, logging cleanups, enforced locking checks (instead of docs), documentation improvements, minor number handling cleanup, pseudofs for shared inodes. - ttm: add ability to allocate from both ends - i915: broadwell features, power domain and runtime pm, per-process address space infrastructure (not enabled) - msm: power management, hdmi audio support - nouveau: ongoing GPU fault recovery, initial maxwell support, random fixes - exynos: refactored driver to clean up a lot of abstraction, DP support moved into drm, LVDS bridge support added, parallel panel support - gma500: SGX MMU support, SGX irq handling, asle irq work fixes - radeon: video engine bringup, ring handling fixes, use dp aux helpers - vmwgfx: add rendernode support" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (849 commits) DRM: armada: fix corruption while loading cursors drm/dp_helper: don't return EPROTO for defers (v2) drm/bridge: export ptn3460_init function drm/exynos: remove MODULE_DEVICE_TABLE definitions ARM: dts: exynos4412-trats2: enable exynos/fimd node ARM: dts: exynos4210-trats: enable exynos/fimd node ARM: dts: exynos4412-trats2: add panel node ARM: dts: exynos4210-trats: add panel node ARM: dts: exynos4: add MIPI DSI Master node drm/panel: add S6E8AA0 driver ARM: dts: exynos4210-universal_c210: add proper panel node drm/panel: add ld9040 driver panel/ld9040: add DT bindings panel/s6e8aa0: add DT bindings drm/exynos: add DSIM driver exynos/dsim: add DT bindings drm/exynos: disallow fbdev initialization if no device is connected drm/mipi_dsi: create dsi devices only for nodes with reg property drm/mipi_dsi: add flags to DSI messages Skip intel_crt_init for Dell XPS 8700 ...
Diffstat (limited to 'drivers/gpu/drm/gma500/gma_device.c')
-rw-r--r--drivers/gpu/drm/gma500/gma_device.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/gma_device.c b/drivers/gpu/drm/gma500/gma_device.c
new file mode 100644
index 000000000000..4a295f9ba067
--- /dev/null
+++ b/drivers/gpu/drm/gma500/gma_device.c
@@ -0,0 +1,56 @@
+/**************************************************************************
+ * Copyright (c) 2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 <drm/drmP.h>
+#include "psb_drv.h"
+
+void gma_get_core_freq(struct drm_device *dev)
+{
+ uint32_t clock;
+ struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+ struct drm_psb_private *dev_priv = dev->dev_private;
+
+ /*pci_write_config_dword(pci_root, 0xD4, 0x00C32004);*/
+ /*pci_write_config_dword(pci_root, 0xD0, 0xE0033000);*/
+
+ pci_write_config_dword(pci_root, 0xD0, 0xD0050300);
+ pci_read_config_dword(pci_root, 0xD4, &clock);
+ pci_dev_put(pci_root);
+
+ switch (clock & 0x07) {
+ case 0:
+ dev_priv->core_freq = 100;
+ break;
+ case 1:
+ dev_priv->core_freq = 133;
+ break;
+ case 2:
+ dev_priv->core_freq = 150;
+ break;
+ case 3:
+ dev_priv->core_freq = 178;
+ break;
+ case 4:
+ dev_priv->core_freq = 200;
+ break;
+ case 5:
+ case 6:
+ case 7:
+ dev_priv->core_freq = 266;
+ break;
+ default:
+ dev_priv->core_freq = 0;
+ }
+}