Drop explicit NULL initializations from `device_operations`

Unmentioned fields are initialized with 0 (or NULL) implicitly. Beside
that, the struct has grown over the years. There are too many optional
fields to list them all.

Change-Id: Icb9e14c58153d7c14817bcde148e86e977666e4b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40126
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

32 files changed, 0 insertions, 54 deletions

diff --git a/src/soc/amd/picasso/northbridge.c b/src/soc/amd/picasso/northbridge.c
index 20589a95e3..b6e5d5c8a1 100644
--- a/src/soc/amd/picasso/northbridge.c
+++ b/src/soc/amd/picasso/northbridge.c
@@ -205,8 +205,6 @@ static struct device_operations northbridge_operations = {
 	.enable_resources = pci_dev_enable_resources,
 	.acpi_fill_ssdt   = northbridge_fill_ssdt_generator,
 	.write_acpi_tables = agesa_write_acpi_tables,
-	.enable		  = 0,
-	.ops_pci	  = 0,
 };
 
 static const struct pci_driver family15_northbridge __pci_driver = {
diff --git a/src/soc/amd/stoneyridge/northbridge.c b/src/soc/amd/stoneyridge/northbridge.c
index afcd49824b..b853d5f287 100644
--- a/src/soc/amd/stoneyridge/northbridge.c
+++ b/src/soc/amd/stoneyridge/northbridge.c
@@ -358,8 +358,6 @@ static struct device_operations northbridge_operations = {
 	.init		  = northbridge_init,
 	.acpi_fill_ssdt   = northbridge_fill_ssdt_generator,
 	.write_acpi_tables = agesa_write_acpi_tables,
-	.enable		  = 0,
-	.ops_pci	  = 0,
 };
 
 static const unsigned short pci_device_ids[] = {
diff --git a/src/soc/cavium/cn81xx/ecam0.c b/src/soc/cavium/cn81xx/ecam0.c
index 1f2ba843c6..777cd10967 100644
--- a/src/soc/cavium/cn81xx/ecam0.c
+++ b/src/soc/cavium/cn81xx/ecam0.c
@@ -320,8 +320,6 @@ static void ecam0_init(struct device *dev)
 }
 
 struct device_operations pci_domain_ops_ecam0 = {
-	.set_resources    = NULL,
-	.enable_resources = NULL,
 	.read_resources   = ecam0_read_resources,
 	.init             = ecam0_init,
 	.scan_bus         = pci_domain_scan_bus,
diff --git a/src/soc/cavium/cn81xx/soc.c b/src/soc/cavium/cn81xx/soc.c
index 02b7da6140..9312593fe6 100644
--- a/src/soc/cavium/cn81xx/soc.c
+++ b/src/soc/cavium/cn81xx/soc.c
@@ -394,7 +394,6 @@ static struct device_operations soc_ops = {
 	.enable_resources = DEVICE_NOOP,
 	.init             = soc_init,
 	.final            = soc_final,
-	.scan_bus         = NULL,
 };
 
 static void enable_soc_dev(struct device *dev)
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c
index ee533bb743..2c8737f654 100644
--- a/src/soc/intel/apollolake/chip.c
+++ b/src/soc/intel/apollolake/chip.c
@@ -214,8 +214,6 @@ static void pci_domain_set_resources(struct device *dev)
 static struct device_operations pci_domain_ops = {
 	.read_resources = pci_domain_read_resources,
 	.set_resources = pci_domain_set_resources,
-	.enable_resources = NULL,
-	.init = NULL,
 	.scan_bus = pci_domain_scan_bus,
 	.acpi_name = &soc_acpi_name,
 };
@@ -225,7 +223,6 @@ static struct device_operations cpu_bus_ops = {
 	.set_resources = DEVICE_NOOP,
 	.enable_resources = DEVICE_NOOP,
 	.init = apollolake_init_cpus,
-	.scan_bus = NULL,
 	.acpi_fill_ssdt = generate_cpu_entries,
 };
 
diff --git a/src/soc/intel/baytrail/chip.c b/src/soc/intel/baytrail/chip.c
index f65d4f251c..10bb245581 100644
--- a/src/soc/intel/baytrail/chip.c
+++ b/src/soc/intel/baytrail/chip.c
@@ -28,8 +28,6 @@ static void pci_domain_set_resources(struct device *dev)
 static struct device_operations pci_domain_ops = {
 	.read_resources   = pci_domain_read_resources,
 	.set_resources    = pci_domain_set_resources,
-	.enable_resources = NULL,
-	.init             = NULL,
 	.scan_bus         = pci_domain_scan_bus,
 };
 
@@ -38,7 +36,6 @@ static struct device_operations cpu_bus_ops = {
 	.set_resources    = DEVICE_NOOP,
 	.enable_resources = DEVICE_NOOP,
 	.init             = baytrail_init_cpus,
-	.scan_bus         = NULL,
 };
 
 
diff --git a/src/soc/intel/baytrail/emmc.c b/src/soc/intel/baytrail/emmc.c
index 8994e43af8..885bc0fbb1 100644
--- a/src/soc/intel/baytrail/emmc.c
+++ b/src/soc/intel/baytrail/emmc.c
@@ -59,8 +59,6 @@ static struct device_operations device_ops = {
 	.set_resources		= pci_dev_set_resources,
 	.enable_resources	= pci_dev_enable_resources,
 	.init			= emmc_init,
-	.enable			= NULL,
-	.scan_bus		= NULL,
 	.ops_pci		= &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/baytrail/hda.c b/src/soc/intel/baytrail/hda.c
index e8be1e2327..45430070d2 100644
--- a/src/soc/intel/baytrail/hda.c
+++ b/src/soc/intel/baytrail/hda.c
@@ -100,8 +100,6 @@ static const struct device_operations device_ops = {
 	.set_resources		= pci_dev_set_resources,
 	.enable_resources	= pci_dev_enable_resources,
 	.init			= hda_init,
-	.enable			= NULL,
-	.scan_bus		= NULL,
 	.ops_pci		= &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/baytrail/lpe.c b/src/soc/intel/baytrail/lpe.c
index e34af1e2d7..a2c71e62d8 100644
--- a/src/soc/intel/baytrail/lpe.c
+++ b/src/soc/intel/baytrail/lpe.c
@@ -173,8 +173,6 @@ static const struct device_operations device_ops = {
 	.set_resources		= pci_dev_set_resources,
 	.enable_resources	= pci_dev_enable_resources,
 	.init			= lpe_init,
-	.enable			= NULL,
-	.scan_bus		= NULL,
 	.ops_pci		= &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/baytrail/lpss.c b/src/soc/intel/baytrail/lpss.c
index 71b6dacbb5..9cc8025957 100644
--- a/src/soc/intel/baytrail/lpss.c
+++ b/src/soc/intel/baytrail/lpss.c
@@ -171,8 +171,6 @@ static struct device_operations device_ops = {
 	.set_resources		= pci_dev_set_resources,
 	.enable_resources	= pci_dev_enable_resources,
 	.init			= lpss_init,
-	.enable			= NULL,
-	.scan_bus		= NULL,
 	.ops_pci		= &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/baytrail/northcluster.c b/src/soc/intel/baytrail/northcluster.c
index 0b61fe7d05..38bbfc27ad 100644
--- a/src/soc/intel/baytrail/northcluster.c
+++ b/src/soc/intel/baytrail/northcluster.c
@@ -137,11 +137,6 @@ static void nc_read_resources(struct device *dev)
 static struct device_operations nc_ops = {
 	.read_resources   = nc_read_resources,
 	.acpi_fill_ssdt   = generate_cpu_entries,
-	.set_resources    = NULL,
-	.enable_resources = NULL,
-	.init             = NULL,
-	.enable           = NULL,
-	.scan_bus         = NULL,
 	.ops_pci          = &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/baytrail/sata.c b/src/soc/intel/baytrail/sata.c
index 33fb04316b..f56975fd39 100644
--- a/src/soc/intel/baytrail/sata.c
+++ b/src/soc/intel/baytrail/sata.c
@@ -212,7 +212,6 @@ static struct device_operations sata_ops = {
 	.enable_resources	= pci_dev_enable_resources,
 	.init			= sata_init,
 	.enable			= sata_enable,
-	.scan_bus		= NULL,
 	.ops_pci		= &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/baytrail/sd.c b/src/soc/intel/baytrail/sd.c
index dd2b61ac7d..7c587650f9 100644
--- a/src/soc/intel/baytrail/sd.c
+++ b/src/soc/intel/baytrail/sd.c
@@ -50,8 +50,6 @@ static const struct device_operations device_ops = {
 	.set_resources		= pci_dev_set_resources,
 	.enable_resources	= pci_dev_enable_resources,
 	.init			= sd_init,
-	.enable			= NULL,
-	.scan_bus		= NULL,
 	.ops_pci		= &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/baytrail/southcluster.c b/src/soc/intel/baytrail/southcluster.c
index be58f42a58..06cb2619d5 100644
--- a/src/soc/intel/baytrail/southcluster.c
+++ b/src/soc/intel/baytrail/southcluster.c
@@ -523,7 +523,6 @@ static struct device_operations device_ops = {
 	.set_resources		= pci_dev_set_resources,
 	.acpi_inject_dsdt	= southcluster_inject_dsdt,
 	.write_acpi_tables      = acpi_write_hpet,
-	.enable_resources	= NULL,
 	.init			= sc_init,
 	.enable			= southcluster_enable_dev,
 	.scan_bus		= scan_static_bus,
diff --git a/src/soc/intel/braswell/chip.c b/src/soc/intel/braswell/chip.c
index 90ee850cd9..d63bb77dca 100644
--- a/src/soc/intel/braswell/chip.c
+++ b/src/soc/intel/braswell/chip.c
@@ -31,8 +31,6 @@ static void pci_domain_set_resources(struct device *dev)
 static struct device_operations pci_domain_ops = {
 	.read_resources   = pci_domain_read_resources,
 	.set_resources    = pci_domain_set_resources,
-	.enable_resources = NULL,
-	.init             = NULL,
 	.scan_bus         = pci_domain_scan_bus,
 };
 
diff --git a/src/soc/intel/braswell/lpe.c b/src/soc/intel/braswell/lpe.c
index 85e698c535..cf61120895 100644
--- a/src/soc/intel/braswell/lpe.c
+++ b/src/soc/intel/braswell/lpe.c
@@ -197,8 +197,6 @@ static const struct device_operations device_ops = {
 	.set_resources		= lpe_set_resources,
 	.enable_resources	= pci_dev_enable_resources,
 	.init			= lpe_init,
-	.enable			= NULL,
-	.scan_bus		= NULL,
 	.ops_pci		= &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/braswell/lpss.c b/src/soc/intel/braswell/lpss.c
index b5c4e3d95c..24377af311 100644
--- a/src/soc/intel/braswell/lpss.c
+++ b/src/soc/intel/braswell/lpss.c
@@ -162,8 +162,6 @@ static struct device_operations device_ops = {
 	.set_resources		= pci_dev_set_resources,
 	.enable_resources	= pci_dev_enable_resources,
 	.init			= lpss_init,
-	.enable			= NULL,
-	.scan_bus		= NULL,
 	.ops_pci		= &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/braswell/southcluster.c b/src/soc/intel/braswell/southcluster.c
index aa054d6801..c166371091 100644
--- a/src/soc/intel/braswell/southcluster.c
+++ b/src/soc/intel/braswell/southcluster.c
@@ -572,7 +572,6 @@ void southcluster_enable_dev(struct device *dev)
 static struct device_operations device_ops = {
 	.read_resources			= sc_read_resources,
 	.set_resources			= pci_dev_set_resources,
-	.enable_resources		= NULL,
 	.acpi_inject_dsdt		= southcluster_inject_dsdt,
 	.write_acpi_tables		= southcluster_write_acpi_tables,
 	.init				= sc_init,
diff --git a/src/soc/intel/denverton_ns/chip.c b/src/soc/intel/denverton_ns/chip.c
index c41d857d88..d21f053b41 100644
--- a/src/soc/intel/denverton_ns/chip.c
+++ b/src/soc/intel/denverton_ns/chip.c
@@ -46,7 +46,6 @@ static struct device_operations cpu_bus_ops = {
 	.set_resources = DEVICE_NOOP,
 	.enable_resources = DEVICE_NOOP,
 	.init = denverton_init_cpus,
-	.scan_bus = NULL,
 #if CONFIG(HAVE_ACPI_TABLES)
 	.acpi_fill_ssdt = generate_cpu_entries,
 #endif
diff --git a/src/soc/intel/denverton_ns/csme_ie_kt.c b/src/soc/intel/denverton_ns/csme_ie_kt.c
index 73a680e2b9..a8d081af4c 100644
--- a/src/soc/intel/denverton_ns/csme_ie_kt.c
+++ b/src/soc/intel/denverton_ns/csme_ie_kt.c
@@ -69,8 +69,6 @@ static struct device_operations csme_ie_kt_ops = {
 	.read_resources = pci_csme_ie_kt_read_resources,
 	.set_resources = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
-	.scan_bus = 0,
-	.init = 0,
 	.ops_pci = &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/denverton_ns/npk.c b/src/soc/intel/denverton_ns/npk.c
index ce57686e01..c22a5c2d40 100644
--- a/src/soc/intel/denverton_ns/npk.c
+++ b/src/soc/intel/denverton_ns/npk.c
@@ -37,7 +37,6 @@ static struct device_operations pmc_ops = {
 	.read_resources = pci_npk_read_resources,
 	.set_resources = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
-	.scan_bus = 0,
 	.init = npk_init,
 	.ops_pci = &soc_pci_ops,
 };
diff --git a/src/soc/intel/denverton_ns/pmc.c b/src/soc/intel/denverton_ns/pmc.c
index 7027e1ed26..4094b0953a 100644
--- a/src/soc/intel/denverton_ns/pmc.c
+++ b/src/soc/intel/denverton_ns/pmc.c
@@ -104,7 +104,6 @@ static struct device_operations pmc_ops = {
 	.read_resources = pci_pmc_read_resources,
 	.set_resources = pci_dev_set_resources,
 	.enable_resources = pci_dev_enable_resources,
-	.scan_bus = 0,
 	.init = pmc_init,
 	.ops_pci = &soc_pci_ops,
 };
diff --git a/src/soc/intel/denverton_ns/sata.c b/src/soc/intel/denverton_ns/sata.c
index 9097526619..9ee6254424 100644
--- a/src/soc/intel/denverton_ns/sata.c
+++ b/src/soc/intel/denverton_ns/sata.c
@@ -65,7 +65,6 @@ static struct device_operations sata_ops = {
 	.enable_resources = pci_dev_enable_resources,
 	.init = sata_init,
 	.enable = sata_enable,
-	.scan_bus = 0,
 	.ops_pci = &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/denverton_ns/xhci.c b/src/soc/intel/denverton_ns/xhci.c
index 7c6e88951a..be961de332 100644
--- a/src/soc/intel/denverton_ns/xhci.c
+++ b/src/soc/intel/denverton_ns/xhci.c
@@ -39,7 +39,6 @@ static struct device_operations usb_xhci_ops = {
 	.enable_resources = pci_dev_enable_resources,
 	.init = usb_xhci_init,
 	.enable = pci_dev_enable_resources,
-	.scan_bus = 0,
 	.ops_pci = &soc_pci_ops,
 };
 
diff --git a/src/soc/intel/xeon_sp/cpx/chip.c b/src/soc/intel/xeon_sp/cpx/chip.c
index e4063dc99d..ef18e45e9b 100644
--- a/src/soc/intel/xeon_sp/cpx/chip.c
+++ b/src/soc/intel/xeon_sp/cpx/chip.c
@@ -35,7 +35,6 @@ static struct device_operations cpu_bus_ops = {
 	.set_resources = DEVICE_NOOP,
 	.enable_resources = DEVICE_NOOP,
 	.init = cpx_init_cpus,
-	.scan_bus = NULL,
 };
 
 static void chip_enable_dev(struct device *dev)
diff --git a/src/soc/intel/xeon_sp/skx/chip.c b/src/soc/intel/xeon_sp/skx/chip.c
index 764e70fea6..90ae0252e2 100644
--- a/src/soc/intel/xeon_sp/skx/chip.c
+++ b/src/soc/intel/xeon_sp/skx/chip.c
@@ -486,7 +486,6 @@ static struct device_operations cpu_bus_ops = {
 	.set_resources = DEVICE_NOOP,
 	.enable_resources = DEVICE_NOOP,
 	.init = xeon_sp_init_cpus,
-	.scan_bus = NULL,
 #if CONFIG(HAVE_ACPI_TABLES)
 	/* defined in src/soc/intel/common/block/acpi/acpi.c */
 	.acpi_fill_ssdt = generate_cpu_entries,
diff --git a/src/soc/intel/xeon_sp/uncore.c b/src/soc/intel/xeon_sp/uncore.c
index f549eecd85..670d62a5a5 100644
--- a/src/soc/intel/xeon_sp/uncore.c
+++ b/src/soc/intel/xeon_sp/uncore.c
@@ -287,9 +287,6 @@ static struct device_operations mmapvtd_ops = {
 	.enable_resources  = pci_dev_enable_resources,
 	.init              = mmapvtd_init,
 	.ops_pci           = &soc_pci_ops,
-#if CONFIG(HAVE_ACPI_TABLES)
-	.acpi_inject_dsdt  = NULL,
-#endif
 };
 
 static const unsigned short mmapvtd_ids[] = {
diff --git a/src/soc/nvidia/tegra124/soc.c b/src/soc/nvidia/tegra124/soc.c
index f2e2c0a00c..d291af8ad6 100644
--- a/src/soc/nvidia/tegra124/soc.c
+++ b/src/soc/nvidia/tegra124/soc.c
@@ -57,7 +57,6 @@ static struct device_operations soc_ops = {
 	.set_resources    = DEVICE_NOOP,
 	.enable_resources = soc_enable,
 	.init             = soc_init,
-	.scan_bus         = 0,
 };
 
 static void enable_tegra124_dev(struct device *dev)
diff --git a/src/soc/nvidia/tegra210/soc.c b/src/soc/nvidia/tegra210/soc.c
index c29a810ee6..22b6dfe497 100644
--- a/src/soc/nvidia/tegra210/soc.c
+++ b/src/soc/nvidia/tegra210/soc.c
@@ -65,7 +65,6 @@ static struct device_operations soc_ops = {
 	.set_resources    = DEVICE_NOOP,
 	.enable_resources = DEVICE_NOOP,
 	.init             = DEVICE_NOOP,
-	.scan_bus         = NULL,
 };
 
 static void enable_tegra210_dev(struct device *dev)
diff --git a/src/soc/rockchip/rk3288/soc.c b/src/soc/rockchip/rk3288/soc.c
index 09cd7bcf87..84fa691b2b 100644
--- a/src/soc/rockchip/rk3288/soc.c
+++ b/src/soc/rockchip/rk3288/soc.c
@@ -38,7 +38,6 @@ static struct device_operations soc_ops = {
 	.read_resources   = DEVICE_NOOP,
 	.set_resources    = DEVICE_NOOP,
 	.init             = soc_init,
-	.scan_bus         = 0,
 };
 
 static void enable_rk3288_dev(struct device *dev)
diff --git a/src/soc/samsung/exynos5250/cpu.c b/src/soc/samsung/exynos5250/cpu.c
index 4523964775..989af5962c 100644
--- a/src/soc/samsung/exynos5250/cpu.c
+++ b/src/soc/samsung/exynos5250/cpu.c
@@ -127,7 +127,6 @@ static struct device_operations cpu_ops = {
 	.set_resources    = DEVICE_NOOP,
 	.enable_resources = cpu_enable,
 	.init             = cpu_init,
-	.scan_bus         = 0,
 };
 
 static void enable_exynos5250_dev(struct device *dev)
diff --git a/src/soc/samsung/exynos5420/cpu.c b/src/soc/samsung/exynos5420/cpu.c
index bcc6878de7..cc6b0480a9 100644
--- a/src/soc/samsung/exynos5420/cpu.c
+++ b/src/soc/samsung/exynos5420/cpu.c
@@ -157,7 +157,6 @@ static struct device_operations cpu_ops = {
 	.set_resources    = DEVICE_NOOP,
 	.enable_resources = cpu_enable,
 	.init             = cpu_init,
-	.scan_bus         = 0,
 };
 
 static void enable_exynos5420_dev(struct device *dev)