| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 16 May 2011 01:38:06 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Samuel Ortiz <sameo@...ux.intel.com>, linux-kernel@...r.kernel.org
Cc: Lee Jones <lee.jones@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 07/13] mach-ux500: move the DB8500 PRCMU driver to MFD
We have decided that this function arbiter fits better in the MFD
subsystem. Since we need to concatenate the split header files we move
it basically like this:
mv mach-ux500/prcmu-db8500.c drivers/mfd/db8500-prcmu.c
mv mach-ux500/include/mach/prcmu-defs.h include/linux/mfd/db8500-prcmu.h
mv mach-ux500/include/mach/prcmu-regs.h drivers/mfd/db8500-prcmu-regs.h
mach-ux500/include/mach/prcmu.h >> include/linux/mfd/db8500-prcmu.h
rm arch/arm/mach-ux500/include/mach/prcmu.h
Then we update different #include statements and Makefile orders etc
to make the PRCMU driver compile, link and boot in the new place
without really changing any code.
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
arch/arm/mach-ux500/Kconfig | 1 +
arch/arm/mach-ux500/Makefile | 2 +-
arch/arm/mach-ux500/cpu.c | 2 +-
arch/arm/mach-ux500/cpufreq.c | 3 +-
arch/arm/mach-ux500/include/mach/prcmu-defs.h | 30 -----------------
drivers/mfd/Kconfig | 12 ++++++-
drivers/mfd/Makefile | 4 ++-
drivers/mfd/ab8500-i2c.c | 3 +-
.../mfd/db8500-prcmu-regs.h | 0
.../prcmu-db8500.c => drivers/mfd/db8500-prcmu.c | 5 ++-
.../prcmu.h => include/linux/mfd/db8500-prcmu.h | 34 ++++++++++++++++++-
11 files changed, 54 insertions(+), 42 deletions(-)
delete mode 100644 arch/arm/mach-ux500/include/mach/prcmu-defs.h
rename arch/arm/mach-ux500/include/mach/prcmu-regs.h => drivers/mfd/db8500-prcmu-regs.h (100%)
rename arch/arm/mach-ux500/prcmu-db8500.c => drivers/mfd/db8500-prcmu.c (99%)
rename arch/arm/mach-ux500/include/mach/prcmu.h => include/linux/mfd/db8500-prcmu.h (54%)
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 5862601..8071d27 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -15,6 +15,7 @@ config UX500_SOC_DB5500
config UX500_SOC_DB8500
bool "DB8500"
+ select MFD_DB8500_PRCMU
endmenu
diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index 2a08a10..7a1d43e 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -5,7 +5,7 @@
obj-y := clock.o cpu.o devices.o devices-common.o \
id.o usb.o
obj-$(CONFIG_UX500_SOC_DB5500) += cpu-db5500.o dma-db5500.o
-obj-$(CONFIG_UX500_SOC_DB8500) += cpu-db8500.o devices-db8500.o prcmu-db8500.o
+obj-$(CONFIG_UX500_SOC_DB8500) += cpu-db8500.o devices-db8500.o
obj-$(CONFIG_MACH_U8500) += board-mop500.o board-mop500-sdi.o \
board-mop500-regulators.o \
board-mop500-uib.o board-mop500-stuib.o \
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 0190e0e..11360f7 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -8,6 +8,7 @@
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/clk.h>
+#include <linux/mfd/db8500-prcmu.h>
#include <asm/cacheflush.h>
#include <asm/hardware/cache-l2x0.h>
@@ -19,7 +20,6 @@
#include <mach/hardware.h>
#include <mach/setup.h>
#include <mach/devices.h>
-#include <mach/prcmu.h>
#include "clock.h"
diff --git a/arch/arm/mach-ux500/cpufreq.c b/arch/arm/mach-ux500/cpufreq.c
index 5c5b747..d196939 100644
--- a/arch/arm/mach-ux500/cpufreq.c
+++ b/arch/arm/mach-ux500/cpufreq.c
@@ -17,10 +17,9 @@
#include <linux/kernel.h>
#include <linux/cpufreq.h>
#include <linux/delay.h>
+#include <linux/mfd/db8500-prcmu.h>
#include <mach/hardware.h>
-#include <mach/prcmu.h>
-#include <mach/prcmu-defs.h>
#define DRIVER_NAME "cpufreq-u8500"
#define CPUFREQ_NAME "u8500"
diff --git a/arch/arm/mach-ux500/include/mach/prcmu-defs.h b/arch/arm/mach-ux500/include/mach/prcmu-defs.h
deleted file mode 100644
index 848ba64..0000000
--- a/arch/arm/mach-ux500/include/mach/prcmu-defs.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (C) STMicroelectronics 2009
- * Copyright (C) ST-Ericsson SA 2010
- *
- * Author: Sundar Iyer <sundar.iyer@...ricsson.com>
- * Author: Martin Persson <martin.persson@...ricsson.com>
- *
- * License Terms: GNU General Public License v2
- *
- * PRCM Unit definitions
- */
-
-#ifndef __MACH_PRCMU_DEFS_H
-#define __MACH_PRCMU_DEFS_H
-
-enum prcmu_cpu_opp {
- CPU_OPP_INIT = 0x00,
- CPU_OPP_NO_CHANGE = 0x01,
- CPU_OPP_100 = 0x02,
- CPU_OPP_50 = 0x03,
- CPU_OPP_MAX = 0x04,
- CPU_OPP_EXT_CLK = 0x07
-};
-enum prcmu_ape_opp {
- APE_OPP_NO_CHANGE = 0x00,
- APE_OPP_100 = 0x02,
- APE_OPP_50 = 0x03,
-};
-
-#endif /* __MACH_PRCMU_DEFS_H */
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 3ed3ff0..7eaeb97 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -538,7 +538,7 @@ config AB8500_CORE
config AB8500_I2C_CORE
bool "AB8500 register access via PRCMU I2C"
- depends on AB8500_CORE && UX500_SOC_DB8500
+ depends on AB8500_CORE && MFD_DB8500_PRCMU
default y
help
This enables register access to the AB8500 chip via PRCMU I2C.
@@ -575,6 +575,16 @@ config AB3550_CORE
LEDs, vibrator, system power and temperature, power management
and ALSA sound.
+config MFD_DB8500_PRCMU
+ bool "ST-Ericsson DB8500 Power Reset Control Management Unit"
+ depends on UX500_SOC_DB8500
+ select MFD_CORE
+ help
+ Select this option to enable support for the DB8500 Power Reset
+ and Control Management Unit. This is basically an autonomous
+ system controller running an XP70 microprocessor, which is accessed
+ through a register map.
+
config MFD_CS5535
tristate "Support for CS5535 and CS5536 southbridge core functions"
select MFD_CORE
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 419caa9..814c57a 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -74,9 +74,11 @@ obj-$(CONFIG_AB3100_CORE) += ab3100-core.o
obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o
obj-$(CONFIG_AB3550_CORE) += ab3550-core.o
obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o
-obj-$(CONFIG_AB8500_I2C_CORE) += ab8500-i2c.o
obj-$(CONFIG_AB8500_DEBUG) += ab8500-debugfs.o
obj-$(CONFIG_AB8500_GPADC) += ab8500-gpadc.o
+obj-$(CONFIG_MFD_DB8500_PRCMU) += db8500-prcmu.o
+# ab8500-i2c need to come after db8500-prcmu (which provides the channel)
+obj-$(CONFIG_AB8500_I2C_CORE) += ab8500-i2c.o
obj-$(CONFIG_MFD_TIMBERDALE) += timberdale.o
obj-$(CONFIG_PMIC_ADP5520) += adp5520.o
obj-$(CONFIG_LPC_SCH) += lpc_sch.o
diff --git a/drivers/mfd/ab8500-i2c.c b/drivers/mfd/ab8500-i2c.c
index 821e6b8..9be541c 100644
--- a/drivers/mfd/ab8500-i2c.c
+++ b/drivers/mfd/ab8500-i2c.c
@@ -11,8 +11,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mfd/ab8500.h>
-
-#include <mach/prcmu.h>
+#include <linux/mfd/db8500-prcmu.h>
static int ab8500_i2c_write(struct ab8500 *ab8500, u16 addr, u8 data)
{
diff --git a/arch/arm/mach-ux500/include/mach/prcmu-regs.h b/drivers/mfd/db8500-prcmu-regs.h
similarity index 100%
rename from arch/arm/mach-ux500/include/mach/prcmu-regs.h
rename to drivers/mfd/db8500-prcmu-regs.h
diff --git a/arch/arm/mach-ux500/prcmu-db8500.c b/drivers/mfd/db8500-prcmu.c
similarity index 99%
rename from arch/arm/mach-ux500/prcmu-db8500.c
rename to drivers/mfd/db8500-prcmu.c
index c522d26..31f18c8 100644
--- a/arch/arm/mach-ux500/prcmu-db8500.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -20,10 +20,11 @@
#include <linux/jiffies.h>
#include <linux/bitops.h>
#include <linux/interrupt.h>
+#include <linux/mfd/db8500-prcmu.h>
#include <mach/hardware.h>
-#include <mach/prcmu-regs.h>
-#include <mach/prcmu-defs.h>
+
+#include "db8500-prcmu-regs.h"
/* Global var to runtime determine TCDM base for v2 or v1 */
static __iomem void *tcdm_base;
diff --git a/arch/arm/mach-ux500/include/mach/prcmu.h b/include/linux/mfd/db8500-prcmu.h
similarity index 54%
rename from arch/arm/mach-ux500/include/mach/prcmu.h
rename to include/linux/mfd/db8500-prcmu.h
index c49e456..d591d79 100644
--- a/arch/arm/mach-ux500/include/mach/prcmu.h
+++ b/include/linux/mfd/db8500-prcmu.h
@@ -2,6 +2,37 @@
* Copyright (C) STMicroelectronics 2009
* Copyright (C) ST-Ericsson SA 2010
*
+ * Author: Sundar Iyer <sundar.iyer@...ricsson.com>
+ * Author: Martin Persson <martin.persson@...ricsson.com>
+ *
+ * License Terms: GNU General Public License v2
+ *
+ * PRCM Unit definitions
+ */
+
+#ifndef __MACH_PRCMU_DEFS_H
+#define __MACH_PRCMU_DEFS_H
+
+enum prcmu_cpu_opp {
+ CPU_OPP_INIT = 0x00,
+ CPU_OPP_NO_CHANGE = 0x01,
+ CPU_OPP_100 = 0x02,
+ CPU_OPP_50 = 0x03,
+ CPU_OPP_MAX = 0x04,
+ CPU_OPP_EXT_CLK = 0x07
+};
+enum prcmu_ape_opp {
+ APE_OPP_NO_CHANGE = 0x00,
+ APE_OPP_100 = 0x02,
+ APE_OPP_50 = 0x03,
+};
+
+#endif /* __MACH_PRCMU_DEFS_H */
+
+/*
+ * Copyright (C) STMicroelectronics 2009
+ * Copyright (C) ST-Ericsson SA 2010
+ *
* Author: Kumar Sanghvi <kumar.sanghvi@...ricsson.com>
* Author: Sundar Iyer <sundar.iyer@...ricsson.com>
* Author: Mattias Nilsson <mattias.i.nilsson@...ricsson.com>
@@ -12,7 +43,6 @@
*/
#ifndef __MACH_PRCMU_H
#define __MACH_PRCMU_H
-#include <mach/prcmu-defs.h>
void __init prcmu_early_init(void);
int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size);
@@ -21,7 +51,7 @@ int prcmu_set_ape_opp(enum prcmu_ape_opp opp);
int prcmu_set_cpu_opp(enum prcmu_cpu_opp opp);
int prcmu_set_ape_cpu_opps(enum prcmu_ape_opp ape_opp,
enum prcmu_cpu_opp cpu_opp);
-int prcmu_get_ape_opp(void);
+enum prcmu_ape_opp prcmu_get_ape_opp(void);
int prcmu_get_cpu_opp(void);
bool prcmu_has_arm_maxopp(void);
--
1.7.4.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists