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Date: Sat, 6 Apr 2013 19:35:37 -0700
From: "Luis R. Rodriguez" <mcgrof@...not-panic.com>
To: backports@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
"Luis R. Rodriguez" <mcgrof@...not-panic.com>
Subject: [PATCH 2/3] backports: add support for voltage / current regulator subsystem
From: "Luis R. Rodriguez" <mcgrof@...not-panic.com>
This is enabled only for >= 3.2 and enables all regulator
drivers. This is required by some media subsystem drivers.
Signed-off-by: Luis R. Rodriguez <mcgrof@...not-panic.com>
---
backport/Makefile.kernel | 1 +
backport/compat/Kconfig | 18 +++++
backport/compat/main.c | 5 ++
backport/defconfigs/regulator | 63 +++++++++++++++++
backport/include/linux/compat-3.3.h | 8 +++
copy-list | 27 +++++++
dependencies | 3 +
.../regulator/0001-disable-ftrace.patch | 74 ++++++++++++++++++++
8 files changed, 199 insertions(+)
create mode 100644 backport/defconfigs/regulator
create mode 100644 patches/collateral-evolutions/regulator/0001-disable-ftrace.patch
diff --git a/backport/Makefile.kernel b/backport/Makefile.kernel
index 8aa3e4a..3b2c1a4 100644
--- a/backport/Makefile.kernel
+++ b/backport/Makefile.kernel
@@ -23,3 +23,4 @@ obj-$(CPTCFG_SSB) += drivers/ssb/
obj-$(CPTCFG_BCMA) += drivers/bcma/
obj-$(CPTCFG_ETHERNET) += drivers/net/ethernet/
obj-$(CPTCFG_DRM) += drivers/gpu/drm/
+obj-$(CPTCFG_REGULATOR) += drivers/regulator/
diff --git a/backport/compat/Kconfig b/backport/compat/Kconfig
index df58dcc..6ed7c71 100644
--- a/backport/compat/Kconfig
+++ b/backport/compat/Kconfig
@@ -156,6 +156,24 @@ config BACKPORT_BUILD_HDMI
config BACKPORT_HDMI
bool
+config BACKPORT_BUILD_REGULATOR
+ bool
+ # not possible on kernel < 3.2
+ depends on !BACKPORT_KERNEL_3_2
+ # don't build if base kernel has it, except on kernel < 3.9
+ depends on !HDMI || BACKPORT_KERNEL_3_9
+ # build for testing
+ default y if BACKPORT_USERSEL_BUILD_ALL
+ # build if a driver needs it
+ default y if BACKPORT_REGULATOR
+ #c-file drivers/regulator/core.c
+ #c-file drivers/regulator/dummy.c
+ #c-file drivers/regulator/fixed-helper.c
+ #h-file linux/regulator/consumer.h
+
+config BACKPORT_REGULATOR
+ bool
+
config BACKPORT_USERSEL_BUILD_ALL
bool "Build all compat code"
help
diff --git a/backport/compat/main.c b/backport/compat/main.c
index 6f1bfb7..9c5e5a6 100644
--- a/backport/compat/main.c
+++ b/backport/compat/main.c
@@ -38,6 +38,8 @@ void backport_dependency_symbol(void)
}
EXPORT_SYMBOL_GPL(backport_dependency_symbol);
+backport_init_sym(regulator_init);
+backport_init_sym(regulator_init_complete);
static int __init backport_init(void)
{
@@ -45,6 +47,9 @@ static int __init backport_init(void)
backport_system_workqueue_create();
backport_init_mmc_pm_flags();
+ backport_init_call(regulator_init);
+ backport_init_call(regulator_init_complete);
+
printk(KERN_INFO "Loading modules backported from " BACKPORTED_KERNEL_NAME " version " BACKPORTED_KERNEL_VERSION "\n");
printk(KERN_INFO "Backport generated by backports.git " BACKPORTS_VERSION "\n");
diff --git a/backport/defconfigs/regulator b/backport/defconfigs/regulator
new file mode 100644
index 0000000..c080747
--- /dev/null
+++ b/backport/defconfigs/regulator
@@ -0,0 +1,63 @@
+CPTCFG_REGULATOR=y
+CPTCFG_REGULATOR_88PM8607=y
+CPTCFG_REGULATOR_AAT2870=y
+CPTCFG_REGULATOR_AB3100=y
+CPTCFG_REGULATOR_AB8500=y
+CPTCFG_REGULATOR_AD5398=y
+CPTCFG_REGULATOR_ANATOP=y
+CPTCFG_REGULATOR_ARIZONA=y
+CPTCFG_REGULATOR_AS3711=y
+CPTCFG_REGULATOR_DA903X=y
+CPTCFG_REGULATOR_DA9052=y
+CPTCFG_REGULATOR_DA9055=y
+CPTCFG_REGULATOR_DB8500_PRCMU=y
+CPTCFG_REGULATOR_DBX500_PRCMU=y
+CPTCFG_REGULATOR_DEBUG=y
+CPTCFG_REGULATOR_FAN53555=y
+CPTCFG_REGULATOR_FIXED_VOLTAGE=y
+CPTCFG_REGULATOR_GPIO=y
+CPTCFG_REGULATOR_ISL6271A=y
+CPTCFG_REGULATOR_LP3971=y
+CPTCFG_REGULATOR_LP3972=y
+CPTCFG_REGULATOR_LP872X=y
+CPTCFG_REGULATOR_LP8755=y
+CPTCFG_REGULATOR_LP8788=y
+CPTCFG_REGULATOR_MAX1586=y
+CPTCFG_REGULATOR_MAX77686=y
+CPTCFG_REGULATOR_MAX8649=y
+CPTCFG_REGULATOR_MAX8660=y
+CPTCFG_REGULATOR_MAX8907=y
+CPTCFG_REGULATOR_MAX8925=y
+CPTCFG_REGULATOR_MAX8952=y
+CPTCFG_REGULATOR_MAX8973=y
+CPTCFG_REGULATOR_MAX8997=y
+CPTCFG_REGULATOR_MAX8998=y
+CPTCFG_REGULATOR_MC13783=y
+CPTCFG_REGULATOR_MC13892=y
+CPTCFG_REGULATOR_MC13XXX_CORE=y
+CPTCFG_REGULATOR_PALMAS=y
+CPTCFG_REGULATOR_PCAP=y
+CPTCFG_REGULATOR_PCF50633=y
+CPTCFG_REGULATOR_RC5T583=y
+CPTCFG_REGULATOR_S2MPS11=y
+CPTCFG_REGULATOR_S5M8767=y
+CPTCFG_REGULATOR_TPS51632=y
+CPTCFG_REGULATOR_TPS6105X=y
+CPTCFG_REGULATOR_TPS62360=y
+CPTCFG_REGULATOR_TPS65023=y
+CPTCFG_REGULATOR_TPS6507X=y
+CPTCFG_REGULATOR_TPS65090=y
+CPTCFG_REGULATOR_TPS65217=y
+CPTCFG_REGULATOR_TPS6524X=y
+CPTCFG_REGULATOR_TPS6586X=y
+CPTCFG_REGULATOR_TPS65910=y
+CPTCFG_REGULATOR_TPS65912=y
+CPTCFG_REGULATOR_TPS80031=y
+CPTCFG_REGULATOR_TWL4030=y
+CPTCFG_REGULATOR_USERSPACE_CONSUMER=y
+CPTCFG_REGULATOR_VEXPRESS=y
+CPTCFG_REGULATOR_VIRTUAL_CONSUMER=y
+CPTCFG_REGULATOR_WM831X=y
+CPTCFG_REGULATOR_WM8350=y
+CPTCFG_REGULATOR_WM8400=y
+CPTCFG_REGULATOR_WM8994=y
diff --git a/backport/include/linux/compat-3.3.h b/backport/include/linux/compat-3.3.h
index 2af4a52..e09ba91 100644
--- a/backport/include/linux/compat-3.3.h
+++ b/backport/include/linux/compat-3.3.h
@@ -14,6 +14,14 @@
#include <linux/mii.h>
#include <linux/netdevice.h>
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
+/*
+ * In order to get help the regulatory core.c that gets
+ * pulled into the compat module get it without any changes
+ */
+#include <linux/async.h>
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */
+
/*
* BQL was added as of v3.3 but some Linux distributions
* have backported BQL to their v3.2 kernels or older. To
diff --git a/copy-list b/copy-list
index 8c1fb61..7ca33b0 100644
--- a/copy-list
+++ b/copy-list
@@ -121,3 +121,30 @@ include/uapi/drm/
drivers/platform/x86/intel_ips.h
drivers/gpu/drm/
+
+# Regulator
+# we don't include the whole directory as we need
+# to do hackery with linux/regulator/consumer.h
+include/linux/regulator/ab8500.h
+include/linux/regulator/db8500-prcmu.h
+include/linux/regulator/driver.h
+include/linux/regulator/fan53555.h
+include/linux/regulator/fixed.h
+include/linux/regulator/gpio-regulator.h
+include/linux/regulator/lp3971.h
+include/linux/regulator/lp3972.h
+include/linux/regulator/lp872x.h
+include/linux/regulator/machine.h
+include/linux/regulator/max1586.h
+include/linux/regulator/max8649.h
+include/linux/regulator/max8660.h
+include/linux/regulator/max8952.h
+include/linux/regulator/max8973-regulator.h
+include/linux/regulator/of_regulator.h
+include/linux/regulator/tps51632-regulator.h
+include/linux/regulator/tps62360.h
+include/linux/regulator/tps6507x.h
+include/linux/regulator/userspace-consumer.h
+
+drivers/regulator/dummy.h -> compat/dummy.h
+drivers/regulator/
diff --git a/dependencies b/dependencies
index d001a38..6821c5a 100644
--- a/dependencies
+++ b/dependencies
@@ -46,6 +46,9 @@ HDMI 3.2
DRM 3.2
DRM_TTM 3.2
+# Regulator
+REGULATOR 3.2
+
# This requires proc_create(), and that doesn't exist before 2.6.24
LIBIPW_DEBUG 2.6.25
diff --git a/patches/collateral-evolutions/regulator/0001-disable-ftrace.patch b/patches/collateral-evolutions/regulator/0001-disable-ftrace.patch
new file mode 100644
index 0000000..e32694c
--- /dev/null
+++ b/patches/collateral-evolutions/regulator/0001-disable-ftrace.patch
@@ -0,0 +1,74 @@
+--- a/compat/core.c
++++ b/compat/core.c
+@@ -32,9 +32,6 @@
+ #include <linux/regulator/machine.h>
+ #include <linux/module.h>
+
+-#define CREATE_TRACE_POINTS
+-#include <trace/events/regulator.h>
+-
+ #include "dummy.h"
+
+ #define rdev_crit(rdev, fmt, ...) \
+@@ -1578,8 +1575,6 @@ static int _regulator_do_enable(struct r
+ delay = 0;
+ }
+
+- trace_regulator_enable(rdev_get_name(rdev));
+-
+ if (rdev->ena_pin) {
+ ret = regulator_ena_gpio_ctrl(rdev, true);
+ if (ret < 0)
+@@ -1596,7 +1591,6 @@ static int _regulator_do_enable(struct r
+ /* Allow the regulator to ramp; it would be useful to extend
+ * this for bulk operations so that the regulators can ramp
+ * together. */
+- trace_regulator_enable_delay(rdev_get_name(rdev));
+
+ if (delay >= 1000) {
+ mdelay(delay / 1000);
+@@ -1605,8 +1599,6 @@ static int _regulator_do_enable(struct r
+ udelay(delay);
+ }
+
+- trace_regulator_enable_complete(rdev_get_name(rdev));
+-
+ return 0;
+ }
+
+@@ -1683,8 +1675,6 @@ static int _regulator_do_disable(struct
+ {
+ int ret;
+
+- trace_regulator_disable(rdev_get_name(rdev));
+-
+ if (rdev->ena_pin) {
+ ret = regulator_ena_gpio_ctrl(rdev, false);
+ if (ret < 0)
+@@ -1697,8 +1687,6 @@ static int _regulator_do_disable(struct
+ return ret;
+ }
+
+- trace_regulator_disable_complete(rdev_get_name(rdev));
+-
+ _notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE,
+ NULL);
+ return 0;
+@@ -2319,8 +2307,6 @@ static int _regulator_do_set_voltage(str
+ unsigned int selector;
+ int old_selector = -1;
+
+- trace_regulator_set_voltage(rdev_get_name(rdev), min_uV, max_uV);
+-
+ min_uV += rdev->constraints->uV_offset;
+ max_uV += rdev->constraints->uV_offset;
+
+@@ -2407,8 +2393,6 @@ static int _regulator_do_set_voltage(str
+ (void *)data);
+ }
+
+- trace_regulator_set_voltage_complete(rdev_get_name(rdev), best_val);
+-
+ return ret;
+ }
+
--
1.7.10.4
--
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