From 4519064c1c7ccdd319d26181bdd12ee2df6e336e Mon Sep 17 00:00:00 2001 From: Andy Walls Date: Fri, 29 Aug 2008 16:10:21 -0300 Subject: [PATCH] V4L/DVB (8912): cx18: Correct CX23418 PCI configuration settings. cx18: Correct CX23418 PCI configuration settings. The CX23418 doesn't have I/O space registers, so there was no need to try and turn them on (the card ignores the attempt to set the bit anyway). Also removed incorrect config space register setting that was errantly borrowed from ivtv. Signed-off-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx18/cx18-driver.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 3419de9a5a4..3dfceb360b5 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -511,9 +511,9 @@ static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev, return -EIO; } - /* Check for bus mastering */ + /* Enable bus mastering and memory mapped IO for the CX23418 */ pci_read_config_word(dev, PCI_COMMAND, &cmd); - cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; + cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; pci_write_config_word(dev, PCI_COMMAND, cmd); pci_read_config_byte(dev, PCI_CLASS_REVISION, &cx->card_rev); @@ -525,11 +525,6 @@ static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev, pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64); pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency); } - /* This config space value relates to DMA latencies. The - default value 0x8080 is too low however and will lead - to DMA errors. 0xffff is the max value which solves - these problems. */ - pci_write_config_dword(dev, 0x40, 0xffff); CX18_DEBUG_INFO("cx%d (rev %d) at %02x:%02x.%x, " "irq: %d, latency: %d, memory: 0x%lx\n", -- 2.11.0