powerpc: Make generic_calibrate_decr() the default

ppc_md.calibrate_decr() is a mandatory item. Its nullity is never
checked so it must be non null on all platforms.

Most platforms define generic_calibrate_decr() as their
ppc_md.calibrate_decr(). Have time_init() call
generic_calibrate_decr() when ppc_md.calibrate_decr() is NULL,
and remove default assignment from all machines.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/6cb9865d916231c38401ba34ad1a98c249fae135.1676711562.git.christophe.leroy@csgroup.eu

8 files changed, 0 insertions, 9 deletions

diff --git a/arch/powerpc/platforms/44x/canyonlands.c b/arch/powerpc/platforms/44x/canyonlands.c
index ba561ca6c25f..8742a10d9e0c 100644
--- a/arch/powerpc/platforms/44x/canyonlands.c
+++ b/arch/powerpc/platforms/44x/canyonlands.c
@@ -114,5 +114,4 @@ define_machine(canyonlands) {
 	.init_IRQ = uic_init_tree,
 	.get_irq = uic_get_irq,
 	.restart = ppc4xx_reset_system,
-	.calibrate_decr = generic_calibrate_decr,
 };
diff --git a/arch/powerpc/platforms/44x/ebony.c b/arch/powerpc/platforms/44x/ebony.c
index 5b9e57b4cd65..4861310c8dc0 100644
--- a/arch/powerpc/platforms/44x/ebony.c
+++ b/arch/powerpc/platforms/44x/ebony.c
@@ -58,5 +58,4 @@ define_machine(ebony) {
 	.init_IRQ		= uic_init_tree,
 	.get_irq		= uic_get_irq,
 	.restart		= ppc4xx_reset_system,
-	.calibrate_decr		= generic_calibrate_decr,
 };
diff --git a/arch/powerpc/platforms/44x/fsp2.c b/arch/powerpc/platforms/44x/fsp2.c
index 56d91dbef577..f6b8d02e08b0 100644
--- a/arch/powerpc/platforms/44x/fsp2.c
+++ b/arch/powerpc/platforms/44x/fsp2.c
@@ -313,5 +313,4 @@ define_machine(fsp2) {
 	.init_IRQ		= fsp2_irq_init,
 	.get_irq		= uic_get_irq,
 	.restart		= ppc4xx_reset_system,
-	.calibrate_decr		= generic_calibrate_decr,
 };
diff --git a/arch/powerpc/platforms/44x/iss4xx.c b/arch/powerpc/platforms/44x/iss4xx.c
index e779bd3d2291..981972e8347f 100644
--- a/arch/powerpc/platforms/44x/iss4xx.c
+++ b/arch/powerpc/platforms/44x/iss4xx.c
@@ -147,5 +147,4 @@ define_machine(iss4xx) {
 	.init_IRQ		= iss4xx_init_irq,
 	.setup_arch		= iss4xx_setup_arch,
 	.restart		= ppc4xx_reset_system,
-	.calibrate_decr		= generic_calibrate_decr,
 };
diff --git a/arch/powerpc/platforms/44x/ppc44x_simple.c b/arch/powerpc/platforms/44x/ppc44x_simple.c
index 2a0dcdf04b21..971786ff1a7b 100644
--- a/arch/powerpc/platforms/44x/ppc44x_simple.c
+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
@@ -82,5 +82,4 @@ define_machine(ppc44x_simple) {
 	.init_IRQ = uic_init_tree,
 	.get_irq = uic_get_irq,
 	.restart = ppc4xx_reset_system,
-	.calibrate_decr = generic_calibrate_decr,
 };
diff --git a/arch/powerpc/platforms/44x/ppc476.c b/arch/powerpc/platforms/44x/ppc476.c
index 4641ae8c9b09..3135e654a743 100644
--- a/arch/powerpc/platforms/44x/ppc476.c
+++ b/arch/powerpc/platforms/44x/ppc476.c
@@ -277,7 +277,6 @@ define_machine(ppc47x_akebono) {
 	.init_IRQ		= ppc47x_init_irq,
 	.setup_arch		= ppc47x_setup_arch,
 	.restart		= ppc4xx_reset_system,
-	.calibrate_decr		= generic_calibrate_decr,
 };
 
 define_machine(ppc47x_currituck) {
@@ -288,5 +287,4 @@ define_machine(ppc47x_currituck) {
 	.pci_irq_fixup		= ppc47x_pci_irq_fixup,
 	.setup_arch		= ppc47x_setup_arch,
 	.restart		= ppc4xx_reset_system,
-	.calibrate_decr		= generic_calibrate_decr,
 };
diff --git a/arch/powerpc/platforms/44x/sam440ep.c b/arch/powerpc/platforms/44x/sam440ep.c
index 8b281e027477..5cdaa4068e41 100644
--- a/arch/powerpc/platforms/44x/sam440ep.c
+++ b/arch/powerpc/platforms/44x/sam440ep.c
@@ -54,7 +54,6 @@ define_machine(sam440ep) {
 	.init_IRQ 		= uic_init_tree,
 	.get_irq 		= uic_get_irq,
 	.restart		= ppc4xx_reset_system,
-	.calibrate_decr 	= generic_calibrate_decr,
 };
 
 static struct i2c_board_info sam440ep_rtc_info = {
diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c
index acbc356e8a19..bfeb9bdc3258 100644
--- a/arch/powerpc/platforms/44x/warp.c
+++ b/arch/powerpc/platforms/44x/warp.c
@@ -48,7 +48,6 @@ define_machine(warp) {
 	.init_IRQ 	= uic_init_tree,
 	.get_irq 	= uic_get_irq,
 	.restart	= ppc4xx_reset_system,
-	.calibrate_decr = generic_calibrate_decr,
 };