linux-kernel - [PATCH v3 4/8] powerpc/85xx: mpc85xx_ds: Move uli

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Date:   Sun,  9 Apr 2023 02:08:08 +0200
From:   Pali Rohár <pali@...nel.org>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Nicholas Piggin <npiggin@...il.com>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 4/8] powerpc/85xx: mpc85xx_ds: Move uli_init() code into its own driver file

Move uli_init() function into existing driver fsl_uli1575.c file in order
to share its code between more platforms and board files.

Signed-off-by: Pali Rohár <pali@...nel.org>
---
 arch/powerpc/include/asm/ppc-pci.h       |  2 ++
 arch/powerpc/platforms/85xx/mpc85xx_ds.c | 23 +----------------------
 arch/powerpc/platforms/fsl_uli1575.c     | 19 +++++++++++++++++++
 3 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h
index a8db969dd595..0e393aeed912 100644
--- a/arch/powerpc/include/asm/ppc-pci.h
+++ b/arch/powerpc/include/asm/ppc-pci.h
@@ -59,6 +59,7 @@ void eeh_sysfs_remove_device(struct pci_dev *pdev);
 
 #ifdef CONFIG_FSL_ULI1575
 int uli_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn);
+void __init uli_init(void);
 #endif /* CONFIG_FSL_ULI1575 */
 
 #define PCI_BUSNO(bdfn) ((bdfn >> 8) & 0xff)
@@ -70,6 +71,7 @@ static inline void init_pci_config_tokens(void) { }
 #if !defined(CONFIG_PCI) || !defined(CONFIG_FSL_ULI1575)
 #include <linux/pci.h>
 static inline int uli_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn) { return PCIBIOS_SUCCESSFUL; }
+static inline void __init uli_init(void) {}
 #endif /* !defined(CONFIG_PCI) || !defined(CONFIG_FSL_ULI1575) */
 
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 581b5f0ef3be..c474da3eeea8 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -107,27 +107,6 @@ void __init mpc85xx_ds_pic_init(void)
 #endif	/* CONFIG_PPC_I8259 */
 }
 
-static void __init mpc85xx_ds_uli_init(void)
-{
-#ifdef CONFIG_PCI
-	struct device_node *node;
-	struct device_node *pci_with_uli;
-
-	/* See if we have a ULI under the primary */
-
-	node = of_find_node_by_name(NULL, "uli1575");
-	while ((pci_with_uli = of_get_parent(node))) {
-		of_node_put(node);
-		node = pci_with_uli;
-
-		if (pci_with_uli == fsl_pci_primary) {
-			ppc_md.pci_exclude_device = uli_exclude_device;
-			break;
-		}
-	}
-#endif
-}
-
 /*
  * Setup the architecture
  */
@@ -138,7 +117,7 @@ static void __init mpc85xx_ds_setup_arch(void)
 
 	swiotlb_detect_4g();
 	fsl_pci_assign_primary();
-	mpc85xx_ds_uli_init();
+	uli_init();
 	mpc85xx_smp_init();
 
 	printk("MPC85xx DS board from Freescale Semiconductor\n");
diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index 1350db0b935d..b073db9d7c79 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -358,3 +358,22 @@ int uli_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn)
 
 	return PCIBIOS_SUCCESSFUL;
 }
+
+void __init uli_init(void)
+{
+	struct device_node *node;
+	struct device_node *pci_with_uli;
+
+	/* See if we have a ULI under the primary */
+
+	node = of_find_node_by_name(NULL, "uli1575");
+	while ((pci_with_uli = of_get_parent(node))) {
+		of_node_put(node);
+		node = pci_with_uli;
+
+		if (pci_with_uli == fsl_pci_primary) {
+			ppc_md.pci_exclude_device = uli_exclude_device;
+			break;
+		}
+	}
+}
-- 
2.20.1