From 2b94d9fca2bef8cffd5ad56f609aed1f0d024900 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Mon, 1 Feb 2016 01:40:54 -0800 Subject: [PATCH] x86: tnc: Use DM PCI API in disable_igd() Once we get udevice of IGD and SDVO, we can use its udevice to access PCI configuration space with dm_pci_write_config32(). Signed-off-by: Bin Meng Reviewed-by: Simon Glass Tested-by: Simon Glass --- arch/x86/cpu/queensbay/tnc.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/arch/x86/cpu/queensbay/tnc.c b/arch/x86/cpu/queensbay/tnc.c index 8b79505819..38082c4a77 100644 --- a/arch/x86/cpu/queensbay/tnc.c +++ b/arch/x86/cpu/queensbay/tnc.c @@ -5,9 +5,10 @@ */ #include +#include +#include #include #include -#include #include #include #include @@ -16,6 +17,21 @@ static int __maybe_unused disable_igd(void) { + struct udevice *igd, *sdvo; + int ret; + + ret = dm_pci_bus_find_bdf(TNC_IGD, &igd); + if (ret) + return ret; + if (!igd) + return 0; + + ret = dm_pci_bus_find_bdf(TNC_SDVO, &sdvo); + if (ret) + return ret; + if (!sdvo) + return 0; + /* * According to Atom E6xx datasheet, setting VGA Disable (bit17) * of Graphics Controller register (offset 0x50) prevents IGD @@ -34,8 +50,8 @@ static int __maybe_unused disable_igd(void) * two devices will be completely disabled (invisible in the PCI * configuration space) unless a system reset is performed. */ - x86_pci_write_config32(TNC_IGD, IGD_FD, FUNC_DISABLE); - x86_pci_write_config32(TNC_SDVO, IGD_FD, FUNC_DISABLE); + dm_pci_write_config32(igd, IGD_FD, FUNC_DISABLE); + dm_pci_write_config32(sdvo, IGD_FD, FUNC_DISABLE); return 0; } -- 2.39.5