linux-kernel - [PATCH V2 23/23] arm64, pci, acpi: Start using ACPI based PCI host bridge driver for ARM64.

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Date:	Wed, 16 Dec 2015 16:16:33 +0100
From:	Tomasz Nowicki <tn@...ihalf.com>
To:	bhelgaas@...gle.com, arnd@...db.de, will.deacon@....com,
	catalin.marinas@....com, rjw@...ysocki.net, hanjun.guo@...aro.org,
	Lorenzo.Pieralisi@....com, okaya@...eaurora.org,
	jiang.liu@...ux.intel.com, Stefano.Stabellini@...citrix.com
Cc:	robert.richter@...iumnetworks.com, mw@...ihalf.com,
	Liviu.Dudau@....com, ddaney@...iumnetworks.com, tglx@...utronix.de,
	wangyijing@...wei.com, Suravee.Suthikulpanit@....com,
	msalter@...hat.com, linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, linaro-acpi@...ts.linaro.org,
	jchandra@...adcom.com, jcm@...hat.com,
	Tomasz Nowicki <tn@...ihalf.com>
Subject: [PATCH V2 23/23] arm64, pci, acpi: Start using ACPI based PCI host bridge driver for ARM64.

Lets get rid of empty PCI init stub, related ACPI header and
go with full-blown PCI host bridge driver.

Signed-off-by: Tomasz Nowicki <tn@...ihalf.com>
CC: Arnd Bergmann <arnd@...db.de>
CC: Catalin Marinas <catalin.marinas@....com>
CC: Liviu Dudau <Liviu.Dudau@....com>
CC: Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>
CC: Will Deacon <will.deacon@....com>
---
 arch/arm64/Kconfig      |  4 ++++
 arch/arm64/kernel/pci.c | 10 ----------
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d65d315..71032ed 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -86,6 +86,7 @@ config ARM64
 	select OF_EARLY_FLATTREE
 	select OF_RESERVED_MEM
 	select PERF_USE_VMALLOC
+	select PCI_HOST_GENERIC_ACPI if ACPI
 	select POWER_RESET
 	select POWER_SUPPLY
 	select RTC_LIB
@@ -213,6 +214,9 @@ config PCI_MMCONFIG
 	select PCI_ECAM
 	depends on ACPI
 
+config ARCH_PCI_HOST_GENERIC_ACPI
+	def_bool ACPI
+
 endmenu
 
 menu "Kernel Features"
diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c
index f7948f5..e9cf58b 100644
--- a/arch/arm64/kernel/pci.c
+++ b/arch/arm64/kernel/pci.c
@@ -10,7 +10,6 @@
  *
  */
 
-#include <linux/acpi.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
@@ -50,12 +49,3 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 
 	return pci_enable_resources(dev, mask);
 }
-
-#ifdef CONFIG_ACPI
-/* Root bridge scanning */
-struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
-{
-	/* TODO: Should be revisited when implementing PCI on ACPI */
-	return NULL;
-}
-#endif
-- 
1.9.1

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