[PATCH V4 23/26] video: fbdev: nvidia: deprecate pci_get_bus_and_slot()

From: Sinan Kaya <okaya@codeaurora.org>
To: linux-pci@vger.kernel.org, timur@codeaurora.org
Cc: "open list:NVIDIA rivafb and nvidiafb FRAMEBUFFER DRIVER"
	<linux-fbdev@vger.kernel.org>,
	Antonino Daplas <adaplas@gmail.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	linux-arm-msm@vger.kernel.org,
	open list <linux-kernel@vger.kernel.org>,
	"open list:FRAMEBUFFER LAYER" <dri-devel@lists.freedesktop.org>,
	Sinan Kaya <okaya@codeaurora.org>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH V4 23/26] video: fbdev: nvidia: deprecate pci_get_bus_and_slot()
Date: Tue, 19 Dec 2017 00:37:59 -0500	[thread overview]
Message-ID: <1513661883-28662-24-git-send-email-okaya@codeaurora.org> (raw)
In-Reply-To: <1513661883-28662-1-git-send-email-okaya@codeaurora.org>

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

struct nvidia_par has a pointer to struct pci_dev. Use the pci_dev
member to extract the domain information and pass it to
pci_get_domain_bus_and_slot() function.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/video/fbdev/nvidia/nv_hw.c    | 11 ++++++-----
 drivers/video/fbdev/nvidia/nv_setup.c |  3 ++-
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/video/fbdev/nvidia/nv_hw.c b/drivers/video/fbdev/nvidia/nv_hw.c
index 81c80ac..8335da4 100644
--- a/drivers/video/fbdev/nvidia/nv_hw.c
+++ b/drivers/video/fbdev/nvidia/nv_hw.c
@@ -683,10 +683,11 @@ static void nForceUpdateArbitrationSettings(unsigned VClk,
 	nv10_sim_state sim_data;
 	unsigned int M, N, P, pll, MClk, NVClk, memctrl;
 	struct pci_dev *dev;
+	int domain = pci_domain_nr(par->pci_dev->bus);
 
 	if ((par->Chipset & 0x0FF0) == 0x01A0) {
 		unsigned int uMClkPostDiv;
-		dev = pci_get_bus_and_slot(0, 3);
+		dev = pci_get_domain_bus_and_slot(domain, 0, 3);
 		pci_read_config_dword(dev, 0x6C, &uMClkPostDiv);
 		uMClkPostDiv = (uMClkPostDiv >> 8) & 0xf;
 
@@ -694,7 +695,7 @@ static void nForceUpdateArbitrationSettings(unsigned VClk,
 			uMClkPostDiv = 4;
 		MClk = 400000 / uMClkPostDiv;
 	} else {
-		dev = pci_get_bus_and_slot(0, 5);
+		dev = pci_get_domain_bus_and_slot(domain, 0, 5);
 		pci_read_config_dword(dev, 0x4c, &MClk);
 		MClk /= 1000;
 	}
@@ -707,13 +708,13 @@ static void nForceUpdateArbitrationSettings(unsigned VClk,
 	sim_data.pix_bpp = (char)pixelDepth;
 	sim_data.enable_video = 0;
 	sim_data.enable_mp = 0;
-	dev = pci_get_bus_and_slot(0, 1);
+	dev = pci_get_domain_bus_and_slot(domain, 0, 1);
 	pci_read_config_dword(dev, 0x7C, &sim_data.memory_type);
 	pci_dev_put(dev);
 	sim_data.memory_type = (sim_data.memory_type >> 12) & 1;
 	sim_data.memory_width = 64;
 
-	dev = pci_get_bus_and_slot(0, 3);
+	dev = pci_get_domain_bus_and_slot(domain, 0, 3);
 	pci_read_config_dword(dev, 0, &memctrl);
 	pci_dev_put(dev);
 	memctrl >>= 16;
@@ -721,7 +722,7 @@ static void nForceUpdateArbitrationSettings(unsigned VClk,
 	if ((memctrl == 0x1A9) || (memctrl == 0x1AB) || (memctrl == 0x1ED)) {
 		u32 dimm[3];
 
-		dev = pci_get_bus_and_slot(0, 2);
+		dev = pci_get_domain_bus_and_slot(domain, 0, 2);
 		pci_read_config_dword(dev, 0x40, &dimm[0]);
 		dimm[0] = (dimm[0] >> 8) & 0x4f;
 		pci_read_config_dword(dev, 0x44, &dimm[1]);
diff --git a/drivers/video/fbdev/nvidia/nv_setup.c b/drivers/video/fbdev/nvidia/nv_setup.c
index 2f2e162..b17acd2 100644
--- a/drivers/video/fbdev/nvidia/nv_setup.c
+++ b/drivers/video/fbdev/nvidia/nv_setup.c
@@ -264,7 +264,8 @@ static void nv10GetConfig(struct nvidia_par *par)
 	}
 #endif
 
-	dev = pci_get_bus_and_slot(0, 1);
+	dev = pci_get_domain_bus_and_slot(pci_domain_nr(par->pci_dev->bus),
+					  0, 1);
 	if ((par->Chipset & 0xffff) == 0x01a0) {
 		u32 amt;
 
-- 
1.9.1


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