From f146c7bc85a51f95c05e0f8173d484eb301ece78 Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Thu, 13 Aug 2026 18:52:04 +0200 Subject: PCI: Add pci_irq_type() to query the allocated interrupt type Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX based on the interrupt type the PCI core selected after pci_alloc_irq_vectors(). Several drivers already open-code this check against pdev->msix_enabled and pdev->msi_enabled, or even open code this helper [1]. A common helper avoids the duplication and keeps drivers from accessing the bitfield directly (see also [2]). Acked-by: Bjorn Helgaas Tested-by: John Hubbard Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1] Inspired-by: John Hubbard Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2] Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org [ Add missing pci_irq_type() stub for CONFIG_PCI=n. ] Signed-off-by: Danilo Krummrich --- include/drm/drm_utils.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 include/drm/drm_utils.h (limited to 'include/drm/drm_utils.h') diff --git a/include/drm/drm_utils.h b/include/drm/drm_utils.h new file mode 100644 index 000000000..7e077484c --- /dev/null +++ b/include/drm/drm_utils.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Function prototypes for misc. drm utility functions. + * Specifically this file is for function prototypes for functions which + * may also be used outside of drm code (e.g. in fbdev drivers). + * + * Copyright (C) 2017 Hans de Goede + */ + +#ifndef __DRM_UTILS_H__ +#define __DRM_UTILS_H__ + +#include + +struct drm_edid; + +int drm_get_panel_orientation_quirk(int width, int height); + +struct drm_panel_backlight_quirk { + u16 min_brightness; + u32 brightness_mask; + bool force_pwm; +}; + +const struct drm_panel_backlight_quirk * +drm_get_panel_backlight_quirk(const struct drm_edid *edid); + +signed long drm_timeout_abs_to_jiffies(int64_t timeout_nsec); + +#endif -- cgit v1.3.1