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[193.144.81.196]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4313f56f24csm10040635e9.28.2024.10.15.01.04.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Oct 2024 01:04:45 -0700 (PDT) From: Gonzalo Silvalde Blanco To: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org, thomas.zimmermann@suse.de, Gonzalo Silvalde Blanco Subject: [PATCH v3] fbdev: sstfb: Make CONFIG_FB_DEVICE optional and update Kconfig dependency Date: Tue, 15 Oct 2024 10:04:39 +0200 Message-Id: <20241015080439.5931-1-gonzalo.silvalde@gmail.com> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The sstfb driver currently depends on CONFIG_FB_DEVICE to create sysfs entries and access info->dev. This patch wraps the relevant code blocks with #ifdef CONFIG_FB_DEVICE, allowing the driver to be built and used even if CONFIG_FB_DEVICE is not selected. Additionally, the dependency on CONFIG_FB_DEVICE in the Kconfig file has been removed for the FB_VOODOO1 driver, allowing it to be selected independently of the FB_DEVICE option. This is because the sysfs setting only controls the VGA pass-through state and is not required for the display to function properly. For more information on VGA pass-through, see: http://vogonswiki.com/index.php/VGA_passthrough_cable Tested by building with and without CONFIG_FB_DEVICE enabled, and both configurations compiled successfully without issues. Signed-off-by: Gonzalo Silvalde Blanco --- drivers/video/fbdev/Kconfig | 1 - drivers/video/fbdev/sstfb.c | 13 ++++++++----- 2 files changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index ea36c6956bf3..44a8fdbab6df 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1236,7 +1236,6 @@ config FB_3DFX_I2C config FB_VOODOO1 tristate "3Dfx Voodoo Graphics (sst1) support" depends on FB && PCI - depends on FB_DEVICE select FB_IOMEM_HELPERS help Say Y here if you have a 3Dfx Voodoo Graphics (Voodoo1/sst1) or diff --git a/drivers/video/fbdev/sstfb.c b/drivers/video/fbdev/sstfb.c index f8ae54ca0cc3..1d6ef97f1a84 100644 --- a/drivers/video/fbdev/sstfb.c +++ b/drivers/video/fbdev/sstfb.c @@ -716,6 +716,7 @@ static void sstfb_setvgapass( struct fb_info *info, int enable ) pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, tmp); } +#ifdef CONFIG_FB_DEVICE static ssize_t store_vgapass(struct device *device, struct device_attribute *attr, const char *buf, size_t count) { @@ -736,10 +737,10 @@ static ssize_t show_vgapass(struct device *device, struct device_attribute *attr struct sstfb_par *par = info->par; return sprintf(buf, "%d\n", par->vgapass); } - static struct device_attribute device_attrs[] = { __ATTR(vgapass, S_IRUGO|S_IWUSR, show_vgapass, store_vgapass) - }; +}; +#endif static int sstfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) @@ -1435,10 +1436,10 @@ static int sstfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) } sstfb_clear_screen(info); - +#ifdef CONFIG_FB_DEVICE if (device_create_file(info->dev, &device_attrs[0])) printk(KERN_WARNING "sstfb: can't create sysfs entry.\n"); - +#endif fb_info(info, "%s frame buffer device at 0x%p\n", fix->id, info->screen_base); @@ -1467,8 +1468,9 @@ static void sstfb_remove(struct pci_dev *pdev) info = pci_get_drvdata(pdev); par = info->par; - +#ifdef CONFIG_FB_DEVICE device_remove_file(info->dev, &device_attrs[0]); +#endif sst_shutdown(info); iounmap(info->screen_base); iounmap(par->mmio_vbase); @@ -1536,3 +1538,4 @@ MODULE_PARM_DESC(slowpci, "Uses slow PCI settings (0 or 1) (default=0)"); module_param(mode_option, charp, 0); MODULE_PARM_DESC(mode_option, "Initial video mode (default=" DEFAULT_VIDEO_MODE ")"); +