From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sudip Mukherjee Date: Mon, 19 Jun 2017 20:32:57 +0000 Subject: [PATCH 1/2] staging: sm750fb: avoid conflicting vesafb Message-Id: <1497904378-4808-1-git-send-email-sudipm.mukherjee@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, devel@driverdev.osuosl.org From: Teddy Wang If vesafb is enabled in the config then /dev/fb0 is created by vesa and this sm750 driver gets fb1, fb2. But we need to be fb0 and fb1 to effectively work with xorg. So if it has been alloted fb1, then try to remove the other fb0. Signed-off-by: Teddy Wang Signed-off-by: Sudip Mukherjee --- drivers/staging/sm750fb/sm750.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c index d5934f3..8199dbe 100644 --- a/drivers/staging/sm750fb/sm750.c +++ b/drivers/staging/sm750fb/sm750.c @@ -1053,6 +1053,26 @@ static int sm750fb_frambuffer_alloc(struct sm750_dev *sm750_dev, int fbidx) return err; } +static int lynxfb_kick_out_firmware_fb(struct pci_dev *pdev) +{ + struct apertures_struct *ap; + bool primary = false; + + ap = alloc_apertures(1); + if (!ap) + return -ENOMEM; + + ap->ranges[0].base = pci_resource_start(pdev, 0); + ap->ranges[0].size = pci_resource_len(pdev, 0); +#ifdef CONFIG_X86 + primary = pdev->resource[PCI_ROM_RESOURCE].flags & + IORESOURCE_ROM_SHADOW; +#endif + remove_conflicting_framebuffers(ap, "sm750_fb1", primary); + kfree(ap); + return 0; +} + static int lynxfb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { @@ -1061,6 +1081,10 @@ static int lynxfb_pci_probe(struct pci_dev *pdev, int fbidx; int err; + err = lynxfb_kick_out_firmware_fb(pdev); + if (err) + return err; + /* enable device */ err = pcim_enable_device(pdev); if (err) -- 1.9.1