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Since this second parameter is only used by a few drivers, and to allow drivers to use it for passing other configurations when registering the fbdev, rename @preferred_bpp to @options and make it a multi-field param. The DRM_FB_OPTION() and DRM_FB_GET_OPTION() macros are provided to drivers for computing options bitfield values and getting the values respectively For now, only the DRM_FB_BPP option exists but other options can be added. Suggested-by: Thomas Zimmermann Signed-off-by: Javier Martinez Canillas Reviewed-by: Thomas Zimmermann Reviewed-by: Laurent Pinchart Acked-by: Jernej Skrabec --- Changes in v3: - Drop the preferred_bpp local variable (Laurent Pinchart). - Add a const qualifier to options parameter (Laurent Pinchart). Changes in v2: - Rename DRM_FB_SET_OPTION() to DRM_FB_OPTION() and make more clear in the kernel-doc what this macro does (Laurent Pinchart). - Fix some kernel-doc issues I didn't notice in v1. - Add Reviewed-by tags from Thomas and Laurent. drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 +++-- drivers/gpu/drm/arm/hdlcd_drv.c | 2 +- drivers/gpu/drm/arm/malidp_drv.c | 2 +- drivers/gpu/drm/aspeed/aspeed_gfx_drv.c | 2 +- drivers/gpu/drm/ast/ast_drv.c | 2 +- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 2 +- drivers/gpu/drm/drm_drv.c | 2 +- drivers/gpu/drm/drm_fb_helper.c | 26 ++++++++++++------- drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 2 +- .../gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 2 +- drivers/gpu/drm/imx/dcss/dcss-kms.c | 2 +- drivers/gpu/drm/imx/imx-drm-core.c | 2 +- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 2 +- drivers/gpu/drm/mcde/mcde_drv.c | 2 +- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 2 +- drivers/gpu/drm/meson/meson_drv.c | 2 +- drivers/gpu/drm/mxsfb/mxsfb_drv.c | 2 +- drivers/gpu/drm/pl111/pl111_drv.c | 2 +- drivers/gpu/drm/qxl/qxl_drv.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 +- drivers/gpu/drm/sti/sti_drv.c | 2 +- drivers/gpu/drm/stm/drv.c | 2 +- drivers/gpu/drm/sun4i/sun4i_drv.c | 2 +- drivers/gpu/drm/tidss/tidss_drv.c | 2 +- drivers/gpu/drm/tilcdc/tilcdc_drv.c | 2 +- drivers/gpu/drm/tiny/arcpgu.c | 2 +- drivers/gpu/drm/tiny/bochs.c | 2 +- drivers/gpu/drm/tve200/tve200_drv.c | 2 +- drivers/gpu/drm/vboxvideo/vbox_drv.c | 2 +- drivers/gpu/drm/vc4/vc4_drv.c | 2 +- drivers/gpu/drm/virtio/virtgpu_drv.c | 2 +- drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 2 +- include/drm/drm_fb_helper.h | 14 +++++++++- 33 files changed, 64 insertions(+), 42 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index b03663f42cc9..0c54470975e3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -2118,9 +2118,11 @@ static int amdgpu_pci_probe(struct pci_dev *pdev, !list_empty(&adev_to_drm(adev)->mode_config.connector_list)) { /* select 8 bpp console on low vram cards */ if (adev->gmc.real_vram_size <= (32*1024*1024)) - drm_fbdev_generic_setup(adev_to_drm(adev), 8); + drm_fbdev_generic_setup(adev_to_drm(adev), + DRM_FB_OPTION(DRM_FB_BPP, 8)); else - drm_fbdev_generic_setup(adev_to_drm(adev), 32); + drm_fbdev_generic_setup(adev_to_drm(adev), + DRM_FB_OPTION(DRM_FB_BPP, 32)); } ret = amdgpu_debugfs_init(adev); diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c index e89ae0ec60eb..b69b1e5be379 100644 --- a/drivers/gpu/drm/arm/hdlcd_drv.c +++ b/drivers/gpu/drm/arm/hdlcd_drv.c @@ -321,7 +321,7 @@ static int hdlcd_drm_bind(struct device *dev) if (ret) goto err_register; - drm_fbdev_generic_setup(drm, 32); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index d5aef21426cf..25685b579a05 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -863,7 +863,7 @@ static int malidp_bind(struct device *dev) if (ret) goto register_fail; - drm_fbdev_generic_setup(drm, 32); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c index 7780b72de9e8..dcccc2e93aea 100644 --- a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c +++ b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c @@ -343,7 +343,7 @@ static int aspeed_gfx_probe(struct platform_device *pdev) if (ret) goto err_unload; - drm_fbdev_generic_setup(&priv->drm, 32); + drm_fbdev_generic_setup(&priv->drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; err_unload: diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c index 7465c4f0156a..115be73e9b02 100644 --- a/drivers/gpu/drm/ast/ast_drv.c +++ b/drivers/gpu/drm/ast/ast_drv.c @@ -126,7 +126,7 @@ static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (ret) return ret; - drm_fbdev_generic_setup(dev, 32); + drm_fbdev_generic_setup(dev, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; } diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c index 651e3c109360..d2ced1a03df9 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c @@ -760,7 +760,7 @@ static int atmel_hlcdc_dc_drm_probe(struct platform_device *pdev) if (ret) goto err_unload; - drm_fbdev_generic_setup(ddev, 24); + drm_fbdev_generic_setup(ddev, DRM_FB_OPTION(DRM_FB_BPP, 24)); return 0; diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 8214a0b1ab7f..9fbc2287c876 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -324,7 +324,7 @@ void drm_minor_release(struct drm_minor *minor) * if (ret) * return ret; * - * drm_fbdev_generic_setup(drm, 32); + * drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); * * return 0; * } diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index d265a73313c9..52042ba1e4cf 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -2501,8 +2501,17 @@ static const struct drm_client_funcs drm_fbdev_client_funcs = { /** * drm_fbdev_generic_setup() - Setup generic fbdev emulation * @dev: DRM device - * @preferred_bpp: Preferred bits per pixel for the device. - * @dev->mode_config.preferred_depth is used if this is zero. + * @options: options for the registered framebuffer. + * + * The @options parameter is a multi-field parameter that can contain + * different options for the emulated framebuffer device registered. + * + * The options field values can be set using DRM_FB_OPTION() to compute + * the value according to the option bitfield and can be obtained using + * DRM_FB_GET_OPTION(). The options fields are the following: + * + * * DRM_FB_BPP: bits per pixel for the device. If the field is not set, + * @dev->mode_config.preferred_depth is used instead. * * This function sets up generic fbdev emulation for drivers that supports * dumb buffers with a virtual address and that can be mmap'ed. @@ -2525,8 +2534,7 @@ static const struct drm_client_funcs drm_fbdev_client_funcs = { * * The fbdev is destroyed by drm_dev_unregister(). */ -void drm_fbdev_generic_setup(struct drm_device *dev, - unsigned int preferred_bpp) +void drm_fbdev_generic_setup(struct drm_device *dev, const unsigned int options) { struct drm_fb_helper *fb_helper; int ret; @@ -2555,11 +2563,11 @@ void drm_fbdev_generic_setup(struct drm_device *dev, * mess, resulting in some drivers picking wrong fbdev defaults and * others wrong preferred_depth defaults. */ - if (!preferred_bpp) - preferred_bpp = dev->mode_config.preferred_depth; - if (!preferred_bpp) - preferred_bpp = 32; - fb_helper->preferred_bpp = preferred_bpp; + fb_helper->preferred_bpp = DRM_FB_GET_OPTION(DRM_FB_BPP, options); + if (!fb_helper->preferred_bpp) + fb_helper->preferred_bpp = dev->mode_config.preferred_depth; + if (!fb_helper->preferred_bpp) + fb_helper->preferred_bpp = 32; ret = drm_fbdev_client_hotplug(&fb_helper->client); if (ret) diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c index 7a503bf08d0f..293390f0d99c 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c @@ -334,7 +334,7 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) if (ret < 0) goto put; - drm_fbdev_generic_setup(drm, legacyfb_depth); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, legacyfb_depth)); return 0; diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c index 2af51df6dca7..eb6f3e5d4c95 100644 --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c @@ -237,7 +237,7 @@ static int kirin_drm_bind(struct device *dev) if (ret) goto err_kms_cleanup; - drm_fbdev_generic_setup(drm_dev, 32); + drm_fbdev_generic_setup(drm_dev, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/imx/dcss/dcss-kms.c b/drivers/gpu/drm/imx/dcss/dcss-kms.c index 9b84df34a6a1..f84b54793d96 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-kms.c +++ b/drivers/gpu/drm/imx/dcss/dcss-kms.c @@ -148,7 +148,7 @@ struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss) if (ret) goto cleanup_crtc; - drm_fbdev_generic_setup(drm, 32); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return kms; diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index a57812ec36b1..5fd8cf003a4c 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -251,7 +251,7 @@ static int imx_drm_bind(struct device *dev) if (ret) goto err_poll_fini; - drm_fbdev_generic_setup(drm, legacyfb_depth); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, legacyfb_depth)); return 0; diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index 8eb0ad501a7b..2e7815294e32 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -1388,7 +1388,7 @@ static int ingenic_drm_bind(struct device *dev, bool has_components) goto err_clk_notifier_unregister; } - drm_fbdev_generic_setup(drm, 32); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c index e601baa87e55..e2ca0162061f 100644 --- a/drivers/gpu/drm/mcde/mcde_drv.c +++ b/drivers/gpu/drm/mcde/mcde_drv.c @@ -238,7 +238,7 @@ static int mcde_drm_bind(struct device *dev) if (ret < 0) goto unbind; - drm_fbdev_generic_setup(drm, 32); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 247c6ff277ef..fef2cc840baf 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -393,7 +393,7 @@ static int mtk_drm_bind(struct device *dev) if (ret < 0) goto err_deinit; - drm_fbdev_generic_setup(drm, 32); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 1b70938cfd2c..87fcee9143a9 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -350,7 +350,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) if (ret) goto uninstall_irq; - drm_fbdev_generic_setup(drm, 32); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c index 9d71c55a31c0..6b251916a6c9 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -357,7 +357,7 @@ static int mxsfb_probe(struct platform_device *pdev) if (ret) goto err_unload; - drm_fbdev_generic_setup(drm, 32); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c index 520301b405f1..11b5aea3a166 100644 --- a/drivers/gpu/drm/pl111/pl111_drv.c +++ b/drivers/gpu/drm/pl111/pl111_drv.c @@ -308,7 +308,7 @@ static int pl111_amba_probe(struct amba_device *amba_dev, if (ret < 0) goto dev_put; - drm_fbdev_generic_setup(drm, priv->variant->fb_bpp); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, priv->variant->fb_bpp)); return 0; diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c index 1cb6f0c224bb..883beebe6317 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.c +++ b/drivers/gpu/drm/qxl/qxl_drv.c @@ -122,7 +122,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (ret) goto modeset_cleanup; - drm_fbdev_generic_setup(&qdev->ddev, 32); + drm_fbdev_generic_setup(&qdev->ddev, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; modeset_cleanup: diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 957ea97541d5..6faadab6577b 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -681,7 +681,7 @@ static int rcar_du_probe(struct platform_device *pdev) DRM_INFO("Device %s probed\n", dev_name(&pdev->dev)); - drm_fbdev_generic_setup(&rcdu->ddev, 32); + drm_fbdev_generic_setup(&rcdu->ddev, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c index d858209cf8de..b97ab614d25a 100644 --- a/drivers/gpu/drm/sti/sti_drv.c +++ b/drivers/gpu/drm/sti/sti_drv.c @@ -200,7 +200,7 @@ static int sti_bind(struct device *dev) drm_mode_config_reset(ddev); - drm_fbdev_generic_setup(ddev, 32); + drm_fbdev_generic_setup(ddev, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c index 0da7cce2a1a2..a04a54d0cc9a 100644 --- a/drivers/gpu/drm/stm/drv.c +++ b/drivers/gpu/drm/stm/drv.c @@ -203,7 +203,7 @@ static int stm_drm_platform_probe(struct platform_device *pdev) if (ret) goto err_put; - drm_fbdev_generic_setup(ddev, 16); + drm_fbdev_generic_setup(ddev, DRM_FB_OPTION(DRM_FB_BPP, 16)); return 0; diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c index 275f7e4a03ae..f593a8d127fa 100644 --- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -112,7 +112,7 @@ static int sun4i_drv_bind(struct device *dev) if (ret) goto finish_poll; - drm_fbdev_generic_setup(drm, 32); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c index 04cfff89ee51..58f0d69b2979 100644 --- a/drivers/gpu/drm/tidss/tidss_drv.c +++ b/drivers/gpu/drm/tidss/tidss_drv.c @@ -180,7 +180,7 @@ static int tidss_probe(struct platform_device *pdev) goto err_irq_uninstall; } - drm_fbdev_generic_setup(ddev, 32); + drm_fbdev_generic_setup(ddev, DRM_FB_OPTION(DRM_FB_BPP, 32)); dev_dbg(dev, "%s done\n", __func__); diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index eee3c447fbac..5216365ccab5 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -384,7 +384,7 @@ static int tilcdc_init(const struct drm_driver *ddrv, struct device *dev) goto init_failed; priv->is_registered = true; - drm_fbdev_generic_setup(ddev, bpp); + drm_fbdev_generic_setup(ddev, DRM_FB_OPTION(DRM_FB_BPP, bpp)); return 0; init_failed: diff --git a/drivers/gpu/drm/tiny/arcpgu.c b/drivers/gpu/drm/tiny/arcpgu.c index f0fa3b15c341..df989d5ff5a0 100644 --- a/drivers/gpu/drm/tiny/arcpgu.c +++ b/drivers/gpu/drm/tiny/arcpgu.c @@ -392,7 +392,7 @@ static int arcpgu_probe(struct platform_device *pdev) if (ret) goto err_unload; - drm_fbdev_generic_setup(&arcpgu->drm, 16); + drm_fbdev_generic_setup(&arcpgu->drm, DRM_FB_OPTION(DRM_FB_BPP, 16)); return 0; diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c index ed971c8bb446..c99608f20bcc 100644 --- a/drivers/gpu/drm/tiny/bochs.c +++ b/drivers/gpu/drm/tiny/bochs.c @@ -663,7 +663,7 @@ static int bochs_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent if (ret) goto err_free_dev; - drm_fbdev_generic_setup(dev, 32); + drm_fbdev_generic_setup(dev, DRM_FB_OPTION(DRM_FB_BPP, 32)); return ret; err_free_dev: diff --git a/drivers/gpu/drm/tve200/tve200_drv.c b/drivers/gpu/drm/tve200/tve200_drv.c index 6d9d2921abf4..5fc940d09043 100644 --- a/drivers/gpu/drm/tve200/tve200_drv.c +++ b/drivers/gpu/drm/tve200/tve200_drv.c @@ -226,7 +226,7 @@ static int tve200_probe(struct platform_device *pdev) * Passing in 16 here will make the RGB565 mode the default * Passing in 32 will use XRGB8888 mode */ - drm_fbdev_generic_setup(drm, 16); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 16)); return 0; diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c index f4f2bd79a7cb..2212be1bf03e 100644 --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c @@ -79,7 +79,7 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (ret) goto err_irq_fini; - drm_fbdev_generic_setup(&vbox->ddev, 32); + drm_fbdev_generic_setup(&vbox->ddev, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index 162bc18e7497..ddfdf9907344 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -291,7 +291,7 @@ static int vc4_drm_bind(struct device *dev) if (ret < 0) goto unbind_all; - drm_fbdev_generic_setup(drm, 16); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 16)); return 0; diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c index 5f25a8d15464..d62aa084392b 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.c +++ b/drivers/gpu/drm/virtio/virtgpu_drv.c @@ -128,7 +128,7 @@ static int virtio_gpu_probe(struct virtio_device *vdev) if (ret) goto err_deinit; - drm_fbdev_generic_setup(vdev->priv, 32); + drm_fbdev_generic_setup(vdev->priv, DRM_FB_OPTION(DRM_FB_BPP, 32)); return 0; err_deinit: diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c index 824b510e337b..be1f0f6b460b 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c @@ -135,7 +135,7 @@ static int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub) goto err_poll_fini; /* Initialize fbdev generic emulation. */ - drm_fbdev_generic_setup(drm, 24); + drm_fbdev_generic_setup(drm, DRM_FB_OPTION(DRM_FB_BPP, 24)); return 0; diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index 3af4624368d8..5fc41cf0c987 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -35,6 +35,7 @@ struct drm_fb_helper; #include #include #include +#include #include enum mode_set_atomic { @@ -42,6 +43,17 @@ enum mode_set_atomic { ENTER_ATOMIC_MODE_SET, }; +#define DRM_FB_BPP_MASK GENMASK(7, 0) + +/* Using the GNU statement expression extension */ +#define DRM_FB_OPTION(option, value) \ + ({ \ + WARN_ON(!FIELD_FIT(option##_MASK, value)); \ + FIELD_PREP(option##_MASK, value); \ + }) + +#define DRM_FB_GET_OPTION(option, word) FIELD_GET(option##_MASK, word) + /** * struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size * @fb_width: fbdev width @@ -269,7 +281,7 @@ void drm_fb_helper_lastclose(struct drm_device *dev); void drm_fb_helper_output_poll_changed(struct drm_device *dev); void drm_fbdev_generic_setup(struct drm_device *dev, - unsigned int preferred_bpp); + const unsigned int options); #else static inline void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper,