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From:   Rasmus Villemoes <linux@rasmusvillemoes.dk>
To:     Scott Wood <oss@buserror.net>,
        Kumar Gala <galak@kernel.crashing.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>
Cc:     Qiang Zhao <qiang.zhao@nxp.com>, Li Yang <leoyang.li@nxp.com>,
        Christophe Leroy <christophe.leroy@c-s.fr>,
        Rasmus Villemoes <linux@rasmusvillemoes.dk>,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH] powerpc/85xx: remove mostly pointless mpc85xx_qe_init()
Date:   Wed, 23 Oct 2019 14:54:48 +0200
Message-Id: <20191023125448.383-1-linux@rasmusvillemoes.dk>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Since commit 302c059f2e7b (QE: use subsys_initcall to init qe),
mpc85xx_qe_init() has done nothing apart from possibly emitting a
pr_err(). As part of reducing the amount of QE-related code in
arch/powerpc/ (and eventually support QE on other architectures),
remove this low-hanging fruit.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
 arch/powerpc/platforms/85xx/common.c          | 23 -------------------
 arch/powerpc/platforms/85xx/corenet_generic.c |  2 --
 arch/powerpc/platforms/85xx/mpc85xx.h         |  2 --
 arch/powerpc/platforms/85xx/mpc85xx_mds.c     |  1 -
 arch/powerpc/platforms/85xx/mpc85xx_rdb.c     |  1 -
 arch/powerpc/platforms/85xx/twr_p102x.c       |  1 -
 6 files changed, 30 deletions(-)

diff --git a/arch/powerpc/platforms/85xx/common.c b/arch/powerpc/platforms/85xx/common.c
index fe0606439b5a..a554b6d87cf7 100644
--- a/arch/powerpc/platforms/85xx/common.c
+++ b/arch/powerpc/platforms/85xx/common.c
@@ -86,29 +86,6 @@ void __init mpc85xx_cpm2_pic_init(void)
 #endif
 
 #ifdef CONFIG_QUICC_ENGINE
-void __init mpc85xx_qe_init(void)
-{
-	struct device_node *np;
-
-	np = of_find_compatible_node(NULL, NULL, "fsl,qe");
-	if (!np) {
-		np = of_find_node_by_name(NULL, "qe");
-		if (!np) {
-			pr_err("%s: Could not find Quicc Engine node\n",
-					__func__);
-			return;
-		}
-	}
-
-	if (!of_device_is_available(np)) {
-		of_node_put(np);
-		return;
-	}
-
-	of_node_put(np);
-
-}
-
 void __init mpc85xx_qe_par_io_init(void)
 {
 	struct device_node *np;
diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c
index 7ee2c6628f64..a328a741b457 100644
--- a/arch/powerpc/platforms/85xx/corenet_generic.c
+++ b/arch/powerpc/platforms/85xx/corenet_generic.c
@@ -66,8 +66,6 @@ void __init corenet_gen_setup_arch(void)
 	swiotlb_detect_4g();
 
 	pr_info("%s board\n", ppc_md.name);
-
-	mpc85xx_qe_init();
 }
 
 static const struct of_device_id of_device_ids[] = {
diff --git a/arch/powerpc/platforms/85xx/mpc85xx.h b/arch/powerpc/platforms/85xx/mpc85xx.h
index fa23f9b0592c..cb84c5c56c36 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx.h
+++ b/arch/powerpc/platforms/85xx/mpc85xx.h
@@ -10,10 +10,8 @@ static inline void __init mpc85xx_cpm2_pic_init(void) {}
 #endif /* CONFIG_CPM2 */
 
 #ifdef CONFIG_QUICC_ENGINE
-extern void mpc85xx_qe_init(void);
 extern void mpc85xx_qe_par_io_init(void);
 #else
-static inline void __init mpc85xx_qe_init(void) {}
 static inline void __init mpc85xx_qe_par_io_init(void) {}
 #endif
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 5ca254256c47..120633f99ea6 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -238,7 +238,6 @@ static void __init mpc85xx_mds_qe_init(void)
 {
 	struct device_node *np;
 
-	mpc85xx_qe_init();
 	mpc85xx_qe_par_io_init();
 	mpc85xx_mds_reset_ucc_phys();
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index d3c540ee558f..7f9a84f85766 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
@@ -89,7 +89,6 @@ static void __init mpc85xx_rdb_setup_arch(void)
 	fsl_pci_assign_primary();
 
 #ifdef CONFIG_QUICC_ENGINE
-	mpc85xx_qe_init();
 	mpc85xx_qe_par_io_init();
 #if defined(CONFIG_UCC_GETH) || defined(CONFIG_SERIAL_QE)
 	if (machine_is(p1025_rdb)) {
diff --git a/arch/powerpc/platforms/85xx/twr_p102x.c b/arch/powerpc/platforms/85xx/twr_p102x.c
index 720b0c0f03ba..6c3c0cdaee9a 100644
--- a/arch/powerpc/platforms/85xx/twr_p102x.c
+++ b/arch/powerpc/platforms/85xx/twr_p102x.c
@@ -72,7 +72,6 @@ static void __init twr_p1025_setup_arch(void)
 	fsl_pci_assign_primary();
 
 #ifdef CONFIG_QUICC_ENGINE
-	mpc85xx_qe_init();
 	mpc85xx_qe_par_io_init();
 
 #if IS_ENABLED(CONFIG_UCC_GETH) || IS_ENABLED(CONFIG_SERIAL_QE)
-- 
2.23.0