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ba42485c18
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/gma500/gma_device.c:10:6: warning: no previous prototype for ‘gma_get_core_freq’ [-Wmissing-prototypes] Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210115181313.3431493-23-lee.jones@linaro.org
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/**************************************************************************
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* Copyright (c) 2011, Intel Corporation.
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* All Rights Reserved.
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*
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**************************************************************************/
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#include "psb_drv.h"
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#include "gma_device.h"
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void gma_get_core_freq(struct drm_device *dev)
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{
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uint32_t clock;
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struct pci_dev *pdev = to_pci_dev(dev->dev);
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struct pci_dev *pci_root =
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pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
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0, 0);
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struct drm_psb_private *dev_priv = dev->dev_private;
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/*pci_write_config_dword(pci_root, 0xD4, 0x00C32004);*/
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/*pci_write_config_dword(pci_root, 0xD0, 0xE0033000);*/
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pci_write_config_dword(pci_root, 0xD0, 0xD0050300);
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pci_read_config_dword(pci_root, 0xD4, &clock);
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pci_dev_put(pci_root);
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switch (clock & 0x07) {
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case 0:
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dev_priv->core_freq = 100;
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break;
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case 1:
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dev_priv->core_freq = 133;
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break;
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case 2:
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dev_priv->core_freq = 150;
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break;
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case 3:
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dev_priv->core_freq = 178;
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break;
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case 4:
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dev_priv->core_freq = 200;
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break;
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case 5:
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case 6:
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case 7:
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dev_priv->core_freq = 266;
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break;
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default:
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dev_priv->core_freq = 0;
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}
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}
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