kernel: update bcma by backporting 4.4 and 4.5 patches

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 48111
This commit is contained in:
Rafał Miłecki 2016-01-04 12:22:24 +00:00
parent b1986d8fd6
commit ccb7d794ff
7 changed files with 165 additions and 195 deletions

View file

@ -1,65 +0,0 @@
From 666bdfc027cde41a171862dc698987a378c8b66a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 9 Feb 2015 18:00:42 +0100
Subject: [PATCH RFC] bcma: use two different initcalls if built-in
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This is needed as we can't initialize bus during fs_initcall.
Initialization requires SPROM which depends on NVRAM which depends on
mtd. Since mtd, spi, nand, spi-nor use standard module_init, we have to
do the same in bcma.
Without this we'll try to initialize SPROM without having a ready SPROM
proviver registered using bcma_arch_register_fallback_sprom.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
While this patch seems to work and I can compile bcma as built-in and
module, I'm not too proud of it. I don't really like these #if(n)def
tricks and I'm afraid bcma_modinit may be called even if
bcma_modinit_early failed.
Do you see any better idea of solving this?
---
drivers/bcma/main.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -637,13 +637,25 @@ static int bcma_device_uevent(struct dev
core->id.rev, core->id.class);
}
+/* Bus has to be registered early, before any bcma driver */
+static int __init bcma_modinit_early(void)
+{
+ return bus_register(&bcma_bus_type);
+}
+#ifndef MODULE
+fs_initcall(bcma_modinit_early);
+#endif
+
+/* Initialization has to be done later with SPI/mtd/NAND/SPROM available */
static int __init bcma_modinit(void)
{
int err;
- err = bus_register(&bcma_bus_type);
+#ifdef MODULE
+ err = bcma_modinit_early();
if (err)
return err;
+#endif
err = bcma_host_soc_register_driver();
if (err) {
@@ -660,7 +672,7 @@ static int __init bcma_modinit(void)
return err;
}
-fs_initcall(bcma_modinit);
+module_init(bcma_modinit);
static void __exit bcma_modexit(void)
{

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@ -1,65 +0,0 @@
From 666bdfc027cde41a171862dc698987a378c8b66a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 9 Feb 2015 18:00:42 +0100
Subject: [PATCH RFC] bcma: use two different initcalls if built-in
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This is needed as we can't initialize bus during fs_initcall.
Initialization requires SPROM which depends on NVRAM which depends on
mtd. Since mtd, spi, nand, spi-nor use standard module_init, we have to
do the same in bcma.
Without this we'll try to initialize SPROM without having a ready SPROM
proviver registered using bcma_arch_register_fallback_sprom.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
While this patch seems to work and I can compile bcma as built-in and
module, I'm not too proud of it. I don't really like these #if(n)def
tricks and I'm afraid bcma_modinit may be called even if
bcma_modinit_early failed.
Do you see any better idea of solving this?
---
drivers/bcma/main.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -673,13 +673,25 @@ static int bcma_device_uevent(struct dev
core->id.rev, core->id.class);
}
+/* Bus has to be registered early, before any bcma driver */
+static int __init bcma_modinit_early(void)
+{
+ return bus_register(&bcma_bus_type);
+}
+#ifndef MODULE
+fs_initcall(bcma_modinit_early);
+#endif
+
+/* Initialization has to be done later with SPI/mtd/NAND/SPROM available */
static int __init bcma_modinit(void)
{
int err;
- err = bus_register(&bcma_bus_type);
+#ifdef MODULE
+ err = bcma_modinit_early();
if (err)
return err;
+#endif
err = bcma_host_soc_register_driver();
if (err) {
@@ -696,7 +708,7 @@ static int __init bcma_modinit(void)
return err;
}
-fs_initcall(bcma_modinit);
+module_init(bcma_modinit);
static void __exit bcma_modexit(void)
{

View file

@ -1,65 +0,0 @@
From 666bdfc027cde41a171862dc698987a378c8b66a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 9 Feb 2015 18:00:42 +0100
Subject: [PATCH RFC] bcma: use two different initcalls if built-in
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This is needed as we can't initialize bus during fs_initcall.
Initialization requires SPROM which depends on NVRAM which depends on
mtd. Since mtd, spi, nand, spi-nor use standard module_init, we have to
do the same in bcma.
Without this we'll try to initialize SPROM without having a ready SPROM
proviver registered using bcma_arch_register_fallback_sprom.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
While this patch seems to work and I can compile bcma as built-in and
module, I'm not too proud of it. I don't really like these #if(n)def
tricks and I'm afraid bcma_modinit may be called even if
bcma_modinit_early failed.
Do you see any better idea of solving this?
---
drivers/bcma/main.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -668,13 +668,25 @@ static int bcma_device_uevent(struct dev
core->id.rev, core->id.class);
}
+/* Bus has to be registered early, before any bcma driver */
+static int __init bcma_modinit_early(void)
+{
+ return bus_register(&bcma_bus_type);
+}
+#ifndef MODULE
+fs_initcall(bcma_modinit_early);
+#endif
+
+/* Initialization has to be done later with SPI/mtd/NAND/SPROM available */
static int __init bcma_modinit(void)
{
int err;
- err = bus_register(&bcma_bus_type);
+#ifdef MODULE
+ err = bcma_modinit_early();
if (err)
return err;
+#endif
err = bcma_host_soc_register_driver();
if (err) {
@@ -691,7 +703,7 @@ static int __init bcma_modinit(void)
return err;
}
-fs_initcall(bcma_modinit);
+module_init(bcma_modinit);
static void __exit bcma_modexit(void)
{

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@ -0,0 +1,49 @@
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -637,11 +637,36 @@ static int bcma_device_uevent(struct dev
core->id.rev, core->id.class);
}
-static int __init bcma_modinit(void)
+static unsigned int bcma_bus_registered;
+
+/*
+ * If built-in, bus has to be registered early, before any driver calls
+ * bcma_driver_register.
+ * Otherwise registering driver would trigger BUG in driver_register.
+ */
+static int __init bcma_init_bus_register(void)
{
int err;
+ if (bcma_bus_registered)
+ return 0;
+
err = bus_register(&bcma_bus_type);
+ if (!err)
+ bcma_bus_registered = 1;
+
+ return err;
+}
+#ifndef MODULE
+fs_initcall(bcma_init_bus_register);
+#endif
+
+/* Main initialization has to be done with SPI/mtd/NAND/SPROM available */
+static int __init bcma_modinit(void)
+{
+ int err;
+
+ err = bcma_init_bus_register();
if (err)
return err;
@@ -660,7 +685,7 @@ static int __init bcma_modinit(void)
return err;
}
-fs_initcall(bcma_modinit);
+module_init(bcma_modinit);
static void __exit bcma_modexit(void)
{

View file

@ -24,3 +24,21 @@ Date: Fri Sep 18 22:08:17 2015 +0200
#define BCMA_CORE_DEFAULT 0xFFF
#define BCMA_MAX_NR_CORES 16
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -436,13 +436,8 @@ int bcma_bus_register(struct bcma_bus *b
}
dev = bcma_bus_get_host_dev(bus);
- /* TODO: remove check for IS_BUILTIN(CONFIG_BCMA) check when
- * of_default_bus_match_table is exported or in some other way
- * accessible. This is just a temporary workaround.
- */
- if (IS_BUILTIN(CONFIG_BCMA) && dev) {
- of_platform_populate(dev->of_node, of_default_bus_match_table,
- NULL, dev);
+ if (dev) {
+ of_platform_default_populate(dev->of_node, NULL, dev);
}
/* Cores providing flash access go before SPROM init */

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@ -0,0 +1,49 @@
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -668,11 +668,36 @@ static int bcma_device_uevent(struct dev
core->id.rev, core->id.class);
}
-static int __init bcma_modinit(void)
+static unsigned int bcma_bus_registered;
+
+/*
+ * If built-in, bus has to be registered early, before any driver calls
+ * bcma_driver_register.
+ * Otherwise registering driver would trigger BUG in driver_register.
+ */
+static int __init bcma_init_bus_register(void)
{
int err;
+ if (bcma_bus_registered)
+ return 0;
+
err = bus_register(&bcma_bus_type);
+ if (!err)
+ bcma_bus_registered = 1;
+
+ return err;
+}
+#ifndef MODULE
+fs_initcall(bcma_init_bus_register);
+#endif
+
+/* Main initialization has to be done with SPI/mtd/NAND/SPROM available */
+static int __init bcma_modinit(void)
+{
+ int err;
+
+ err = bcma_init_bus_register();
if (err)
return err;
@@ -691,7 +716,7 @@ static int __init bcma_modinit(void)
return err;
}
-fs_initcall(bcma_modinit);
+module_init(bcma_modinit);
static void __exit bcma_modexit(void)
{

View file

@ -0,0 +1,49 @@
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -668,11 +668,36 @@ static int bcma_device_uevent(struct dev
core->id.rev, core->id.class);
}
-static int __init bcma_modinit(void)
+static unsigned int bcma_bus_registered;
+
+/*
+ * If built-in, bus has to be registered early, before any driver calls
+ * bcma_driver_register.
+ * Otherwise registering driver would trigger BUG in driver_register.
+ */
+static int __init bcma_init_bus_register(void)
{
int err;
+ if (bcma_bus_registered)
+ return 0;
+
err = bus_register(&bcma_bus_type);
+ if (!err)
+ bcma_bus_registered = 1;
+
+ return err;
+}
+#ifndef MODULE
+fs_initcall(bcma_init_bus_register);
+#endif
+
+/* Main initialization has to be done with SPI/mtd/NAND/SPROM available */
+static int __init bcma_modinit(void)
+{
+ int err;
+
+ err = bcma_init_bus_register();
if (err)
return err;
@@ -691,7 +716,7 @@ static int __init bcma_modinit(void)
return err;
}
-fs_initcall(bcma_modinit);
+module_init(bcma_modinit);
static void __exit bcma_modexit(void)
{