From aafc787e41fd8a4d3a4378b028d8d8f8d38d9bb6 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Mon, 20 May 2013 08:05:51 +0000 Subject: arm: bpf_jit: can call module_free() from any context Follow-up on module_free()/vfree() that takes care of the rest, so no longer this workaround with work_struct needed. Signed-off-by: Daniel Borkmann Cc: Al Viro Cc: Mircea Gherzan Signed-off-by: David S. Miller --- arch/arm/net/bpf_jit_32.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index 1a643ee8e082..f50d223a0bd3 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -900,8 +900,7 @@ void bpf_jit_compile(struct sk_filter *fp) #endif alloc_size = 4 * ctx.idx; - ctx.target = module_alloc(max(sizeof(struct work_struct), - alloc_size)); + ctx.target = module_alloc(alloc_size); if (unlikely(ctx.target == NULL)) goto out; @@ -927,19 +926,8 @@ out: return; } -static void bpf_jit_free_worker(struct work_struct *work) -{ - module_free(NULL, work); -} - void bpf_jit_free(struct sk_filter *fp) { - struct work_struct *work; - - if (fp->bpf_func != sk_run_filter) { - work = (struct work_struct *)fp->bpf_func; - - INIT_WORK(work, bpf_jit_free_worker); - schedule_work(work); - } + if (fp->bpf_func != sk_run_filter) + module_free(NULL, fp->bpf_func); } -- cgit v1.2.3 From 94204cd4e1452e13ecf5fc6fcec9485e93e8a8f4 Mon Sep 17 00:00:00 2001 From: Fabio Baltieri Date: Thu, 21 Mar 2013 13:31:53 +0100 Subject: ARM: ux500: select WATCHDOG and MUSB for ux500 Enable ux500 specific USB and watchdog drivers by default on u8500_defconfig. Signed-off-by: Fabio Baltieri Signed-off-by: Linus Walleij --- arch/arm/configs/u8500_defconfig | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index c037aa1065b7..acb62cf36c70 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -70,6 +70,7 @@ CONFIG_GPIO_TC3589X=y # CONFIG_AB8500_BATTERY_THERM_ON_BATCTRL is not set CONFIG_THERMAL=y CONFIG_CPU_THERMAL=y +CONFIG_WATCHDOG=y CONFIG_MFD_STMPE=y CONFIG_MFD_TC3589X=y CONFIG_AB5500_CORE=y @@ -79,7 +80,13 @@ CONFIG_REGULATOR_AB8500=y CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_REGULATOR_GPIO=y # CONFIG_HID_SUPPORT is not set +CONFIG_USB=y +CONFIG_USB_MUSB_HDRC=y +CONFIG_USB_MUSB_UX500=y +CONFIG_USB_PHY=y CONFIG_USB_GADGET=y +CONFIG_USB_GADGET_MUSB_HDRC=y +CONFIG_USB_ETH=m CONFIG_AB8500_USB=y CONFIG_MMC=y CONFIG_MMC_CLKGATE=y -- cgit v1.2.3 From b39ca96c63822a22a1d2f08a247fd49353913fcd Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 24 May 2013 08:51:25 +0200 Subject: ARM: ux500: update defconfig base Update the defconfig removing/adding selections due to Kconfig changes, and select some new hardware drivers that have been matured in the tree. For example: - CONFIG_NO_HZ and CONFIG_HIGH_RES_TIMERS come from the make oldconfig changes after the recent changes to how NOHZ is handled. - The U5500 config option is now gone as the machine is deleted. So is the AB5500 driver. - CPU_IDLE selected explicitly. - LP5521 Kconfig has been moved around. - AB8500 core is default-selected, as is the AB8500 USB transciever. - The battery and charging management drivers for the AB8500 are not selected again. - Select the crypto devices that have been shaped up to work properly. Cc: Lee Jones Signed-off-by: Linus Walleij --- arch/arm/configs/u8500_defconfig | 28 ++++++++++------------------ 1 file changed, 10 insertions(+), 18 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index acb62cf36c70..da0614abafde 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -1,6 +1,7 @@ -CONFIG_EXPERIMENTAL=y # CONFIG_SWAP is not set CONFIG_SYSVIPC=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y CONFIG_BLK_DEV_INITRD=y CONFIG_KALLSYMS_ALL=y CONFIG_MODULES=y @@ -9,10 +10,7 @@ CONFIG_MODULE_UNLOAD=y CONFIG_ARCH_U8500=y CONFIG_MACH_HREFV60=y CONFIG_MACH_SNOWBALL=y -CONFIG_MACH_U5500=y CONFIG_MACH_UX500_DT=y -CONFIG_NO_HZ=y -CONFIG_HIGH_RES_TIMERS=y CONFIG_SMP=y CONFIG_NR_CPUS=2 CONFIG_PREEMPT=y @@ -20,6 +18,7 @@ CONFIG_AEABI=y CONFIG_CMDLINE="root=/dev/ram0 console=ttyAMA2,115200n8" CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y +CONFIG_CPU_IDLE=y CONFIG_VFP=y CONFIG_NEON=y CONFIG_PM_RUNTIME=y @@ -36,7 +35,6 @@ CONFIG_CAIF=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=65536 -CONFIG_AB8500_PWM=y CONFIG_SENSORS_BH1780=y CONFIG_NETDEVICES=y CONFIG_SMSC911X=y @@ -60,42 +58,33 @@ CONFIG_VT_HW_CONSOLE_BINDING=y CONFIG_SERIAL_AMBA_PL011=y CONFIG_SERIAL_AMBA_PL011_CONSOLE=y CONFIG_HW_RANDOM=y -CONFIG_HW_RANDOM_NOMADIK=y CONFIG_SPI=y CONFIG_SPI_PL022=y CONFIG_GPIO_STMPE=y CONFIG_GPIO_TC3589X=y -# CONFIG_POWER_SUPPLY is not set -# CONFIG_AB8500_BM is not set -# CONFIG_AB8500_BATTERY_THERM_ON_BATCTRL is not set CONFIG_THERMAL=y CONFIG_CPU_THERMAL=y CONFIG_WATCHDOG=y CONFIG_MFD_STMPE=y CONFIG_MFD_TC3589X=y -CONFIG_AB5500_CORE=y -CONFIG_AB8500_CORE=y -CONFIG_REGULATOR=y -CONFIG_REGULATOR_AB8500=y -CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_REGULATOR_GPIO=y -# CONFIG_HID_SUPPORT is not set +CONFIG_REGULATOR_AB8500=y CONFIG_USB=y CONFIG_USB_MUSB_HDRC=y CONFIG_USB_MUSB_UX500=y CONFIG_USB_PHY=y +CONFIG_AB8500_USB=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_MUSB_HDRC=y CONFIG_USB_ETH=m -CONFIG_AB8500_USB=y CONFIG_MMC=y CONFIG_MMC_CLKGATE=y CONFIG_MMC_ARMMMCI=y CONFIG_NEW_LEDS=y CONFIG_LEDS_CLASS=y CONFIG_LEDS_LM3530=y -CONFIG_LEDS_LP5521=y CONFIG_LEDS_GPIO=y +CONFIG_LEDS_LP5521=y CONFIG_LEDS_TRIGGERS=y CONFIG_LEDS_TRIGGER_HEARTBEAT=y CONFIG_RTC_CLASS=y @@ -115,7 +104,6 @@ CONFIG_EXT4_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y CONFIG_TMPFS_POSIX_ACL=y -CONFIG_CONFIGFS_FS=m # CONFIG_MISC_FILESYSTEMS is not set CONFIG_NFS_FS=y CONFIG_ROOT_NFS=y @@ -129,3 +117,7 @@ CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_INFO=y # CONFIG_FTRACE is not set CONFIG_DEBUG_USER=y +CONFIG_CRYPTO_DEV_UX500=y +CONFIG_CRYPTO_DEV_UX500_CRYP=y +CONFIG_CRYPTO_DEV_UX500_HASH=y +CONFIG_CRYPTO_DEV_UX500_DEBUG=y -- cgit v1.2.3 From d78b655050bbb917069839d5aa1a051f0d867566 Mon Sep 17 00:00:00 2001 From: Fabio Baltieri Date: Fri, 24 May 2013 15:28:13 +0200 Subject: ARM: ux500: select SND_SOC_UX500 for ux500 Enable ux500 specific ALSA SoC drivers by default on u8500_defconfig. Signed-off-by: Fabio Baltieri Signed-off-by: Linus Walleij --- arch/arm/configs/u8500_defconfig | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index da0614abafde..da353e0755b0 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -69,6 +69,11 @@ CONFIG_MFD_STMPE=y CONFIG_MFD_TC3589X=y CONFIG_REGULATOR_GPIO=y CONFIG_REGULATOR_AB8500=y +CONFIG_SOUND=y +CONFIG_SND=y +CONFIG_SND_SOC=y +CONFIG_SND_SOC_UX500=y +CONFIG_SND_SOC_UX500_MACH_MOP500=y CONFIG_USB=y CONFIG_USB_MUSB_HDRC=y CONFIG_USB_MUSB_UX500=y -- cgit v1.2.3 From 8487662994aaf2b66ab72a096a05b8404daa6eeb Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Mon, 27 May 2013 14:30:15 +0200 Subject: ARM: ux500: Update MMC configs for u8500 defconfig Enable MMC_UNSAFE_RESUME to be accomplish a proper suspend/resume cycle for SD/SDIO/(e)MMC. ARMMMCI host driver supports clock gating through runtime PM, thus MMC_CLKGATE is not needed. Moreover ARMMMCI can do scatter-gather which means we can explicity disable MMC_BLOCK_BOUNCE, since it's default enabled, to skip unnecessary bounce buffer copying. Signed-off-by: Ulf Hansson Signed-off-by: Linus Walleij --- arch/arm/configs/u8500_defconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index da353e0755b0..b2326b019b83 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -83,7 +83,8 @@ CONFIG_USB_GADGET=y CONFIG_USB_GADGET_MUSB_HDRC=y CONFIG_USB_ETH=m CONFIG_MMC=y -CONFIG_MMC_CLKGATE=y +CONFIG_MMC_UNSAFE_RESUME=y +# CONFIG_MMC_BLOCK_BOUNCE is not set CONFIG_MMC_ARMMMCI=y CONFIG_NEW_LEDS=y CONFIG_LEDS_CLASS=y -- cgit v1.2.3 From 55a68c23e0a675b2b8ac2656fd6edbf98b78e4c6 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Tue, 7 May 2013 22:11:26 +0200 Subject: dw_apb_timer_of.c: Remove parts that were picoxcell-specific It seems we made a mistake when creating dw_apb_timer_of.c: picoxcell sched_clock had parts that were not related to dw_apb_timer, yet we moved them to dw_apb_timer_of, and tried to use them on socfpga. This results in system where user/system time is not measured properly, as demonstrated by time dd if=/dev/urandom of=/dev/zero bs=100000 count=100 So this patch switches sched_clock to hardware that exists on both platforms, and adds missing of_node_put() in dw_apb_timer_init(). Signed-off-by: Pavel Machek Acked-by: Jamie Iles Signed-off-by: John Stultz --- arch/arm/mach-picoxcell/common.h | 2 -- drivers/clocksource/dw_apb_timer.c | 6 ---- drivers/clocksource/dw_apb_timer_of.c | 52 ++++++++++++++++------------------- include/linux/dw_apb_timer.h | 6 ++++ 4 files changed, 29 insertions(+), 37 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-picoxcell/common.h b/arch/arm/mach-picoxcell/common.h index 481b42a4ef15..237fb3bcbd04 100644 --- a/arch/arm/mach-picoxcell/common.h +++ b/arch/arm/mach-picoxcell/common.h @@ -12,6 +12,4 @@ #include -extern void dw_apb_timer_init(void); - #endif /* __PICOXCELL_COMMON_H__ */ diff --git a/drivers/clocksource/dw_apb_timer.c b/drivers/clocksource/dw_apb_timer.c index e54ca1062d8e..e7042bc5c7d2 100644 --- a/drivers/clocksource/dw_apb_timer.c +++ b/drivers/clocksource/dw_apb_timer.c @@ -21,12 +21,6 @@ #define APBT_MIN_PERIOD 4 #define APBT_MIN_DELTA_USEC 200 -#define APBTMR_N_LOAD_COUNT 0x00 -#define APBTMR_N_CURRENT_VALUE 0x04 -#define APBTMR_N_CONTROL 0x08 -#define APBTMR_N_EOI 0x0c -#define APBTMR_N_INT_STATUS 0x10 - #define APBTMRS_INT_STATUS 0xa0 #define APBTMRS_EOI 0xa4 #define APBTMRS_RAW_INT_STATUS 0xa8 diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c index ab09ed3742ee..44a3b9163c46 100644 --- a/drivers/clocksource/dw_apb_timer_of.c +++ b/drivers/clocksource/dw_apb_timer_of.c @@ -57,6 +57,15 @@ static void add_clockevent(struct device_node *event_timer) dw_apb_clockevent_register(ced); } +static void __iomem *sched_io_base; + +/* This is actually same as __apbt_read_clocksource(), but with + different interface */ +static u32 read_sched_clock_sptimer(void) +{ + return ~__raw_readl(sched_io_base + APBTMR_N_CURRENT_VALUE); +} + static void add_clocksource(struct device_node *source_timer) { void __iomem *iobase; @@ -71,41 +80,27 @@ static void add_clocksource(struct device_node *source_timer) dw_apb_clocksource_start(cs); dw_apb_clocksource_register(cs); -} -static void __iomem *sched_io_base; - -static u32 read_sched_clock(void) -{ - return __raw_readl(sched_io_base); + sched_io_base = iobase; + setup_sched_clock(read_sched_clock_sptimer, 32, rate); } -static const struct of_device_id sptimer_ids[] __initconst = { - { .compatible = "picochip,pc3x2-rtc" }, +static const struct of_device_id osctimer_ids[] __initconst = { + { .compatible = "picochip,pc3x2-timer" }, + { .compatible = "snps,dw-apb-timer-osc" }, { .compatible = "snps,dw-apb-timer-sp" }, - { /* Sentinel */ }, + { /* Sentinel */ }, }; -static void init_sched_clock(void) -{ - struct device_node *sched_timer; - u32 rate; - - sched_timer = of_find_matching_node(NULL, sptimer_ids); - if (!sched_timer) - panic("No RTC for sched clock to use"); +/* + You don't have to use dw_apb_timer for scheduler clock, + this should also work fine on arm: - timer_get_base_and_rate(sched_timer, &sched_io_base, &rate); - of_node_put(sched_timer); + twd_local_timer_of_register(); + arch_timer_of_register(); + arch_timer_sched_clock_init(); +*/ - setup_sched_clock(read_sched_clock, 32, rate); -} - -static const struct of_device_id osctimer_ids[] __initconst = { - { .compatible = "picochip,pc3x2-timer" }, - { .compatible = "snps,dw-apb-timer-osc" }, - {}, -}; void __init dw_apb_timer_init(void) { @@ -121,7 +116,6 @@ void __init dw_apb_timer_init(void) panic("No timer for clocksource"); add_clocksource(source_timer); + of_node_put(event_timer); of_node_put(source_timer); - - init_sched_clock(); } diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h index b1cd9597c241..de0904e38f33 100644 --- a/include/linux/dw_apb_timer.h +++ b/include/linux/dw_apb_timer.h @@ -17,6 +17,12 @@ #include #include +#define APBTMR_N_LOAD_COUNT 0x00 +#define APBTMR_N_CURRENT_VALUE 0x04 +#define APBTMR_N_CONTROL 0x08 +#define APBTMR_N_EOI 0x0c +#define APBTMR_N_INT_STATUS 0x10 + #define APBTMRS_REG_SIZE 0x14 struct dw_apb_timer { -- cgit v1.2.3 From b21da664120b1c8332fc5059a1e7c1462dd26433 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Thu, 30 May 2013 03:49:22 +0000 Subject: ARM: sun4i: Add muxing options for the ethernet controller The EMAC only has one pinset available for muxing, so hopefully, we cover all cases. Signed-off-by: Maxime Ripard Tested-by: Richard Genoud Signed-off-by: David S. Miller --- arch/arm/boot/dts/sun4i-a10.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi index e7ef619a70a2..ff1f41fc6eba 100644 --- a/arch/arm/boot/dts/sun4i-a10.dtsi +++ b/arch/arm/boot/dts/sun4i-a10.dtsi @@ -199,6 +199,17 @@ allwinner,drive = <0>; allwinner,pull = <0>; }; + + emac_pins_a: emac0@0 { + allwinner,pins = "PA0", "PA1", "PA2", + "PA3", "PA4", "PA5", "PA6", + "PA7", "PA8", "PA9", "PA10", + "PA11", "PA12", "PA13", "PA14", + "PA15", "PA16"; + allwinner,function = "emac"; + allwinner,drive = <0>; + allwinner,pull = <0>; + }; }; timer@01c20c00 { -- cgit v1.2.3 From e38afcb33ff4b472254c8f6f140699e002c44d84 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Thu, 30 May 2013 03:49:23 +0000 Subject: ARM: sunxi: Add EMAC controller node to sun4i DTSI Signed-off-by: Maxime Ripard Tested-by: Richard Genoud Signed-off-by: David S. Miller --- arch/arm/boot/dts/sun4i-a10.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi index ff1f41fc6eba..983da33bebaa 100644 --- a/arch/arm/boot/dts/sun4i-a10.dtsi +++ b/arch/arm/boot/dts/sun4i-a10.dtsi @@ -163,6 +163,22 @@ reg = <0x01c20000 0x300000>; ranges; + emac: ethernet@01c0b000 { + compatible = "allwinner,sun4i-emac"; + reg = <0x01c0b000 0x1000>; + interrupts = <55>; + clocks = <&ahb_gates 17>; + status = "disabled"; + }; + + mdio@01c0b080 { + compatible = "allwinner,sun4i-mdio"; + reg = <0x01c0b080 0x14>; + status = "disabled"; + #address-cells = <1>; + #size-cells = <0>; + }; + intc: interrupt-controller@01c20400 { compatible = "allwinner,sun4i-ic"; reg = <0x01c20400 0x400>; -- cgit v1.2.3 From e5a84bac5d6797c64541f87e7a567d56699bbb74 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Thu, 30 May 2013 03:49:24 +0000 Subject: ARM: cubieboard: Enable ethernet (EMAC) support in dts Signed-off-by: Stefan Roese Signed-off-by: Maxime Ripard Tested-by: Richard Genoud Signed-off-by: David S. Miller --- arch/arm/boot/dts/sun4i-a10-cubieboard.dts | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts index b70fe0db6bb7..e752b570b4ec 100644 --- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts +++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts @@ -27,6 +27,21 @@ }; soc@01c20000 { + emac: ethernet@01c0b000 { + pinctrl-names = "default"; + pinctrl-0 = <&emac_pins_a>; + phy = <&phy1>; + status = "okay"; + }; + + mdio@01c0b080 { + status = "okay"; + + phy1: ethernet-phy@1 { + reg = <1>; + }; + }; + pinctrl@01c20800 { led_pins_cubieboard: led_pins@0 { allwinner,pins = "PH20", "PH21"; -- cgit v1.2.3 From d97a079a79a7dcbc2470572b41cd1f07a16d8b7f Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Thu, 30 May 2013 03:49:25 +0000 Subject: ARM: sunxi: Add EMAC Controller to Hackberry dt The Hackberry has a PHY that needs to be powered up through a GPIO, so we need to use a fixed regulator here. Signed-off-by: Maxime Ripard Tested-by: Richard Genoud Signed-off-by: David S. Miller --- arch/arm/boot/dts/sun4i-a10-hackberry.dts | 41 +++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/sun4i-a10-hackberry.dts b/arch/arm/boot/dts/sun4i-a10-hackberry.dts index b9efac100c85..3514b37d66bc 100644 --- a/arch/arm/boot/dts/sun4i-a10-hackberry.dts +++ b/arch/arm/boot/dts/sun4i-a10-hackberry.dts @@ -23,10 +23,51 @@ }; soc@01c20000 { + emac: ethernet@01c0b000 { + pinctrl-names = "default"; + pinctrl-0 = <&emac_pins_a>; + phy = <&phy0>; + status = "okay"; + }; + + mdio@01c0b080 { + phy-supply = <®_emac_3v3>; + status = "okay"; + + phy0: ethernet-phy@0 { + reg = <0>; + }; + }; + + pio: pinctrl@01c20800 { + pinctrl-names = "default"; + pinctrl-0 = <&hackberry_hogs>; + + hackberry_hogs: hogs@0 { + allwinner,pins = "PH19"; + allwinner,function = "gpio_out"; + allwinner,drive = <0>; + allwinner,pull = <0>; + }; + }; + uart0: serial@01c28000 { pinctrl-names = "default"; pinctrl-0 = <&uart0_pins_a>; status = "okay"; }; }; + + regulators { + compatible = "simple-bus"; + + reg_emac_3v3: emac-3v3 { + compatible = "regulator-fixed"; + regulator-name = "emac-3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + enable-active-high; + gpio = <&pio 7 19 0>; + }; + }; }; -- cgit v1.2.3 From 4c4726faed6cf0c7545ac6523de4cc66acd0a61d Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Wed, 15 May 2013 09:32:36 +0200 Subject: can: flexcan: remove HAVE_CAN_FLEXCAN Kconfig symbol This patch removes the Kconfig symbol HAVE_CAN_FLEXCAN from arch/{arm,powerpc} and allowing compilation unconditionally on all arm and powerpc platforms. This brings a bigger compile time coverage and removes the following dependency warning found by Arnd Bergmann: warning: (SOC_IMX28 && SOC_IMX25 && SOC_IMX35 && IMX_HAVE_PLATFORM_FLEXCAN && SOC_IMX53 && SOC_IMX6Q) selects HAVE_CAN_FLEXCAN which has unmet direct dependencies (NET && CAN && CAN_DEV) Acked-by: Arnd Bergmann Acked-by: Benjamin Herrenschmidt Acked-by: Shawn Guo Signed-off-by: Marc Kleine-Budde --- arch/arm/mach-imx/Kconfig | 4 ---- arch/arm/mach-imx/devices/Kconfig | 1 - arch/arm/mach-mxs/Kconfig | 1 - arch/powerpc/Kconfig | 1 - drivers/net/can/Kconfig | 5 +---- 5 files changed, 1 insertion(+), 11 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index ba44328464f3..af8e109953d1 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -111,7 +111,6 @@ config SOC_IMX25 select ARCH_MXC_IOMUX_V3 select COMMON_CLK select CPU_ARM926T - select HAVE_CAN_FLEXCAN if CAN select MXC_AVIC config SOC_IMX27 @@ -137,7 +136,6 @@ config SOC_IMX35 select ARCH_MXC_IOMUX_V3 select COMMON_CLK select CPU_V6K - select HAVE_CAN_FLEXCAN if CAN select HAVE_EPIT select MXC_AVIC select SMP_ON_UP if SMP @@ -776,7 +774,6 @@ comment "Device tree only" config SOC_IMX53 bool "i.MX53 support" - select HAVE_CAN_FLEXCAN if CAN select HAVE_IMX_SRC select IMX_HAVE_PLATFORM_IMX2_WDT select PINCTRL @@ -799,7 +796,6 @@ config SOC_IMX6Q select CPU_V7 select HAVE_ARM_SCU if SMP select HAVE_ARM_TWD if LOCAL_TIMERS - select HAVE_CAN_FLEXCAN if CAN select HAVE_IMX_ANATOP select HAVE_IMX_GPC select HAVE_IMX_MMDC diff --git a/arch/arm/mach-imx/devices/Kconfig b/arch/arm/mach-imx/devices/Kconfig index 3dd2b1b041d1..68c74fb0373c 100644 --- a/arch/arm/mach-imx/devices/Kconfig +++ b/arch/arm/mach-imx/devices/Kconfig @@ -4,7 +4,6 @@ config IMX_HAVE_PLATFORM_FEC config IMX_HAVE_PLATFORM_FLEXCAN bool - select HAVE_CAN_FLEXCAN if CAN config IMX_HAVE_PLATFORM_FSL_USB2_UDC bool diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig index 4dc2fbba0ecd..ce6e7d606a7c 100644 --- a/arch/arm/mach-mxs/Kconfig +++ b/arch/arm/mach-mxs/Kconfig @@ -11,7 +11,6 @@ config SOC_IMX28 select ARM_AMBA select ARM_CPU_SUSPEND if PM select CPU_ARM926T - select HAVE_CAN_FLEXCAN if CAN select HAVE_PWM select PINCTRL_IMX28 diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c33e3ad2c8fd..7754c6b8c453 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -674,7 +674,6 @@ config SBUS config FSL_SOC bool - select HAVE_CAN_FLEXCAN if NET && CAN config FSL_PCI bool diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig index e456b70933c2..3c069472eb8b 100644 --- a/drivers/net/can/Kconfig +++ b/drivers/net/can/Kconfig @@ -102,12 +102,9 @@ config CAN_JANZ_ICAN3 This driver can also be built as a module. If so, the module will be called janz-ican3.ko. -config HAVE_CAN_FLEXCAN - bool - config CAN_FLEXCAN tristate "Support for Freescale FLEXCAN based chips" - depends on HAVE_CAN_FLEXCAN + depends on ARM || PPC ---help--- Say Y here if you want to support for Freescale FlexCAN. -- cgit v1.2.3 From cbe8933143a62e0ced2d48183cdbdbdc38659338 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 31 May 2013 16:09:06 +0100 Subject: ARM: ux500: Enable HIGHMEM in the u8500 defconfig In order to utilise all of the memory located on ux500 based devices we have to enable HIGHMEM. Without it the kernel truncates memory down to what's left after the PAGE_OFFSET has been applied, which doesn't leave an awful lot, especially if we're running large rootfs' such as full Linux desktop distributions or Android. Signed-off-by: Lee Jones Signed-off-by: Linus Walleij --- arch/arm/configs/u8500_defconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm') diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index b2326b019b83..a0025dc13021 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -1,3 +1,4 @@ +CONFIG_HIGHMEM=y # CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_NO_HZ=y -- cgit v1.2.3 From b40fbbfc05a5a63e8d4fbc8fdb5f0e78e8627ae4 Mon Sep 17 00:00:00 2001 From: Mugunthan V N Date: Mon, 3 Jun 2013 20:10:08 +0000 Subject: ARM: OMAP2+: omap2plus_defconfig: Enable Atheros support Enable Atheros 803X phy driver support in defconfig which is present in AM335x EVM and EVM Starter Kit. Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller --- arch/arm/configs/omap2plus_defconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm') diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index 435d69b83e32..aa2100919ee5 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig @@ -283,3 +283,4 @@ CONFIG_SOC_OMAP5=y CONFIG_TI_DAVINCI_MDIO=y CONFIG_TI_DAVINCI_CPDMA=y CONFIG_TI_CPSW=y +CONFIG_AT803X_PHY=y -- cgit v1.2.3 From f6655d697b85f75d2a1f4f6a03dd2d4c3549e321 Mon Sep 17 00:00:00 2001 From: Mugunthan V N Date: Mon, 3 Jun 2013 20:10:09 +0000 Subject: ARM: dts: AM33XX: Add CPSW phy_id device tree data to am335x-evmsk Add phy_id device tree data to am335x-evmsk device to bring up CPSW ethernet present on am335x starter kit. Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller --- arch/arm/boot/dts/am335x-evmsk.dts | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts index f67c360844f4..acbcac340975 100644 --- a/arch/arm/boot/dts/am335x-evmsk.dts +++ b/arch/arm/boot/dts/am335x-evmsk.dts @@ -248,3 +248,11 @@ }; }; }; + +&cpsw_emac0 { + phy_id = <&davinci_mdio>, <0>; +}; + +&cpsw_emac1 { + phy_id = <&davinci_mdio>, <1>; +}; -- cgit v1.2.3 From 6d75afe2916adf9e9de6862275cdf89b9b7e4d0e Mon Sep 17 00:00:00 2001 From: Mugunthan V N Date: Mon, 3 Jun 2013 20:10:11 +0000 Subject: ARM: dts: AM33XX: Add phy-mode to CPSW node Adding phy-mode to CPSW node for beaglebone, EVM and EVMsk. Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller --- arch/arm/boot/dts/am335x-bone.dts | 2 ++ arch/arm/boot/dts/am335x-evm.dts | 2 ++ arch/arm/boot/dts/am335x-evmsk.dts | 2 ++ 3 files changed, 6 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts index 5302f79c05b7..4b5a8e065dcb 100644 --- a/arch/arm/boot/dts/am335x-bone.dts +++ b/arch/arm/boot/dts/am335x-bone.dts @@ -131,8 +131,10 @@ &cpsw_emac0 { phy_id = <&davinci_mdio>, <0>; + phy-mode = "mii"; }; &cpsw_emac1 { phy_id = <&davinci_mdio>, <1>; + phy-mode = "mii"; }; diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index 0423298a26fe..814ee037fd51 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -239,8 +239,10 @@ &cpsw_emac0 { phy_id = <&davinci_mdio>, <0>; + phy-mode = "rgmii-txid"; }; &cpsw_emac1 { phy_id = <&davinci_mdio>, <1>; + phy-mode = "rgmii-txid"; }; diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts index acbcac340975..4297899a2470 100644 --- a/arch/arm/boot/dts/am335x-evmsk.dts +++ b/arch/arm/boot/dts/am335x-evmsk.dts @@ -251,8 +251,10 @@ &cpsw_emac0 { phy_id = <&davinci_mdio>, <0>; + phy-mode = "rgmii-txid"; }; &cpsw_emac1 { phy_id = <&davinci_mdio>, <1>; + phy-mode = "rgmii-txid"; }; -- cgit v1.2.3 From e5c9b4cd665106d9b5397114ea81a53059410b6a Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 7 Jun 2013 13:57:12 +0000 Subject: sh_eth: get R8A7740 support out of #ifdef Get the R8A7740 code/data in the driver out of #ifdef by adding "r8a7740-gether" to the platform driver's ID table. Change the GEther platform device's name in the ARM platform code accordingly. Signed-off-by: Sergei Shtylyov Signed-off-by: David S. Miller --- arch/arm/mach-shmobile/board-armadillo800eva.c | 2 +- arch/arm/mach-shmobile/clock-r8a7740.c | 2 +- drivers/net/ethernet/renesas/sh_eth.c | 16 +++++++--------- 3 files changed, 9 insertions(+), 11 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c index b85b2882dbd0..2b04c8011e13 100644 --- a/arch/arm/mach-shmobile/board-armadillo800eva.c +++ b/arch/arm/mach-shmobile/board-armadillo800eva.c @@ -377,7 +377,7 @@ static struct resource sh_eth_resources[] = { }; static struct platform_device sh_eth_device = { - .name = "sh-eth", + .name = "r8a7740-gether", .id = -1, .dev = { .platform_data = &sh_eth_platdata, diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c index c0d39aa6de50..ae93f94d15bd 100644 --- a/arch/arm/mach-shmobile/clock-r8a7740.c +++ b/arch/arm/mach-shmobile/clock-r8a7740.c @@ -591,7 +591,7 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("e6860000.sdhi", &mstp_clks[MSTP313]), CLKDEV_DEV_ID("sh_mmcif", &mstp_clks[MSTP312]), CLKDEV_DEV_ID("e6bd0000.mmcif", &mstp_clks[MSTP312]), - CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP309]), + CLKDEV_DEV_ID("r8a7740-gether", &mstp_clks[MSTP309]), CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP415]), CLKDEV_DEV_ID("e6870000.sdhi", &mstp_clks[MSTP415]), diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index e0568a9352e5..da620ecd4151 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -619,11 +619,9 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .irq_flags = IRQF_SHARED, #endif }; +#endif - -#elif defined(CONFIG_ARCH_R8A7740) - -static void sh_eth_chip_reset(struct net_device *ndev) +static void sh_eth_chip_reset_r8a7740(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -634,7 +632,7 @@ static void sh_eth_chip_reset(struct net_device *ndev) sh_eth_select_mii(ndev); } -static void sh_eth_set_rate(struct net_device *ndev) +static void sh_eth_set_rate_gether(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -654,10 +652,10 @@ static void sh_eth_set_rate(struct net_device *ndev) } /* R8A7740 */ -static struct sh_eth_cpu_data sh_eth_my_cpu_data = { - .chip_reset = sh_eth_chip_reset, +static struct sh_eth_cpu_data r8a7740_data = { + .chip_reset = sh_eth_chip_reset_r8a7740, .set_duplex = sh_eth_set_duplex, - .set_rate = sh_eth_set_rate, + .set_rate = sh_eth_set_rate_gether, .ecsr_value = ECSR_ICD | ECSR_MPD, .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, @@ -680,7 +678,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .tsu = 1, .select_mii = 1, }; -#endif static struct sh_eth_cpu_data sh7619_data = { .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, @@ -2701,6 +2698,7 @@ static const struct dev_pm_ops sh_eth_dev_pm_ops = { static struct platform_device_id sh_eth_id_table[] = { { "sh7619-ether", (kernel_ulong_t)&sh7619_data }, { "sh771x-ether", (kernel_ulong_t)&sh771x_data }, + { "r8a7740-gether", (kernel_ulong_t)&r8a7740_data }, { CARDNAME }, { } }; -- cgit v1.2.3 From 589ebdef7e3107401bf96a9c660753d397329ee9 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 7 Jun 2013 14:05:59 +0000 Subject: sh_eth: get R8A777x support out of #ifdef Get the R-Car code/data in the driver out of #ifdef by adding "r8a777x-ether" to the platfrom driver's ID table; since it's the last #ifdef, we remove CARDNAME from the ID table and no longer check the driver data before assigning it to 'mdp->cd'... Change the Ether platform device's name in the ARM platform code accordingly. Signed-off-by: Sergei Shtylyov Signed-off-by: David S. Miller --- arch/arm/mach-shmobile/clock-r8a7778.c | 2 +- arch/arm/mach-shmobile/clock-r8a7779.c | 2 +- drivers/net/ethernet/renesas/sh_eth.c | 14 +++++--------- 3 files changed, 7 insertions(+), 11 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-shmobile/clock-r8a7778.c b/arch/arm/mach-shmobile/clock-r8a7778.c index cd6855290b1f..9614b07254b2 100644 --- a/arch/arm/mach-shmobile/clock-r8a7778.c +++ b/arch/arm/mach-shmobile/clock-r8a7778.c @@ -77,7 +77,7 @@ static struct clk mstp_clks[MSTP_NR] = { static struct clk_lookup lookups[] = { /* MSTP32 clocks */ - CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP114]), /* Ether */ + CLKDEV_DEV_ID("r8a777x-ether", &mstp_clks[MSTP114]), /* Ether */ CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP026]), /* SCIF0 */ CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP025]), /* SCIF1 */ CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP024]), /* SCIF2 */ diff --git a/arch/arm/mach-shmobile/clock-r8a7779.c b/arch/arm/mach-shmobile/clock-r8a7779.c index 31d5cd4d9787..2f7e5245a690 100644 --- a/arch/arm/mach-shmobile/clock-r8a7779.c +++ b/arch/arm/mach-shmobile/clock-r8a7779.c @@ -163,7 +163,7 @@ static struct clk_lookup lookups[] = { /* MSTP32 clocks */ CLKDEV_DEV_ID("sata_rcar", &mstp_clks[MSTP115]), /* SATA */ CLKDEV_DEV_ID("fc600000.sata", &mstp_clks[MSTP115]), /* SATA w/DT */ - CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP114]), /* Ether */ + CLKDEV_DEV_ID("r8a777x-ether", &mstp_clks[MSTP114]), /* Ether */ CLKDEV_DEV_ID("ehci-platform.1", &mstp_clks[MSTP101]), /* USB EHCI port2 */ CLKDEV_DEV_ID("ohci-platform.1", &mstp_clks[MSTP101]), /* USB OHCI port2 */ CLKDEV_DEV_ID("ehci-platform.0", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */ diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 143e22e1b329..cff697118119 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -356,8 +356,7 @@ static void __maybe_unused sh_eth_set_duplex(struct net_device *ndev) } /* There is CPU dependent code */ -#if defined(CONFIG_ARCH_R8A7778) || defined(CONFIG_ARCH_R8A7779) -static void sh_eth_set_rate(struct net_device *ndev) +static void sh_eth_set_rate_r8a777x(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -374,9 +373,9 @@ static void sh_eth_set_rate(struct net_device *ndev) } /* R8A7778/9 */ -static struct sh_eth_cpu_data sh_eth_my_cpu_data = { +static struct sh_eth_cpu_data r8a777x_data = { .set_duplex = sh_eth_set_duplex, - .set_rate = sh_eth_set_rate, + .set_rate = sh_eth_set_rate_r8a777x, .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, @@ -392,7 +391,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .tpauser = 1, .hw_swap = 1, }; -#endif static void sh_eth_set_rate_sh7724(struct net_device *ndev) { @@ -2566,9 +2564,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev) mdp->reg_offset = sh_eth_get_register_offset(pd->register_type); /* set cpu data */ - mdp->cd = &sh_eth_my_cpu_data; - if (id->driver_data) - mdp->cd = (struct sh_eth_cpu_data *)id->driver_data; + mdp->cd = (struct sh_eth_cpu_data *)id->driver_data; sh_eth_set_default_cpu_data(mdp->cd); /* set function */ @@ -2692,7 +2688,7 @@ static struct platform_device_id sh_eth_id_table[] = { { "sh7757-gether", (kernel_ulong_t)&sh7757_data_giga }, { "sh7763-gether", (kernel_ulong_t)&sh7763_data }, { "r8a7740-gether", (kernel_ulong_t)&r8a7740_data }, - { CARDNAME }, + { "r8a777x-ether", (kernel_ulong_t)&r8a777x_data }, { } }; MODULE_DEVICE_TABLE(platform, sh_eth_id_table); -- cgit v1.2.3 From a82279dd6d3e500fea457f1cfea46a6b7ecd7e1f Mon Sep 17 00:00:00 2001 From: Patil, Rachna Date: Thu, 24 Jan 2013 03:45:12 +0000 Subject: arm: am33xx: add TSC/ADC mfd device support Add support for core multifunctional device along with its clients touchscreen and ADC. Signed-off-by: Pantelis Antoniou Signed-off-by: Patil, Rachna Signed-off-by: Felipe Balbi Signed-off-by: Sebastian Andrzej Siewior --- arch/arm/boot/dts/am335x-evm.dts | 14 ++++++++++++++ arch/arm/boot/dts/am33xx.dtsi | 18 ++++++++++++++++++ 2 files changed, 32 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index 0423298a26fe..26fea97dd6e0 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -244,3 +244,17 @@ &cpsw_emac1 { phy_id = <&davinci_mdio>, <1>; }; + +&tscadc { + status = "okay"; + tsc { + ti,wires = <4>; + ti,x-plate-resistance = <200>; + ti,coordiante-readouts = <5>; + ti,wire-config = <0x00 0x11 0x22 0x33>; + }; + + adc { + ti,adc-channels = <4>; + }; +}; diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 1460d9b88adf..4ad7797b97b6 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -404,6 +404,24 @@ ti,hwmods = "wkup_m3"; }; + tscadc: tscadc@44e0d000 { + compatible = "ti,am3359-tscadc"; + reg = <0x44e0d000 0x1000>; + interrupt-parent = <&intc>; + interrupts = <16>; + ti,hwmods = "adc_tsc"; + status = "disabled"; + + tsc { + compatible = "ti,am3359-tsc"; + }; + am335x_adc: adc { + #io-channel-cells = <1>; + compatible = "ti,am3359-adc"; + }; + + }; + gpmc: gpmc@50000000 { compatible = "ti,am3352-gpmc"; ti,hwmods = "gpmc"; -- cgit v1.2.3 From 18926edebcb82ca325abf843293801d4ff43436a Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Wed, 29 May 2013 17:39:02 +0200 Subject: iio: ti_am335x_adc: Allow to specify input line The TSC part allows to specify the input lines. The IIO part assumes that it usues always the last few, that means if IIO has adc-channels set to 2 it will use channel 6 and 7. However it might make sense to use only 6. This patch changes the device property (which was introduced recently and was never in an official release) in a way that the user can specify which of the AIN lines should be used. In Addition to this, the name is now AINx where x is the channel number i.e. for AIN6 we would have 6. Prior this, it always started counting at 0 which is confusing. In addition to this, it also checks for correct step number during reading and does not rely on proper FIFO depth. Acked-by: Jonathan Cameron Signed-off-by: Sebastian Andrzej Siewior --- arch/arm/boot/dts/am335x-evm.dts | 2 +- drivers/iio/adc/ti_am335x_adc.c | 57 ++++++++++++++++++++++++++-------------- drivers/mfd/ti_am335x_tscadc.c | 20 ++++++++++++-- 3 files changed, 56 insertions(+), 23 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index 26fea97dd6e0..0fa4c7f9539f 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -255,6 +255,6 @@ }; adc { - ti,adc-channels = <4>; + ti,adc-channels = <4 5 6 7>; }; }; diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index 307a7c07be47..8ffe52d58829 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -32,6 +32,8 @@ struct tiadc_device { struct ti_tscadc_dev *mfd_tscadc; int channels; + u8 channel_line[8]; + u8 channel_step[8]; }; static unsigned int tiadc_readl(struct tiadc_device *adc, unsigned int reg) @@ -57,7 +59,7 @@ static u32 get_adc_step_mask(struct tiadc_device *adc_dev) static void tiadc_step_config(struct tiadc_device *adc_dev) { unsigned int stepconfig; - int i, channels = 0, steps; + int i, steps; u32 step_en; /* @@ -71,16 +73,18 @@ static void tiadc_step_config(struct tiadc_device *adc_dev) */ steps = TOTAL_STEPS - adc_dev->channels; - channels = TOTAL_CHANNELS - adc_dev->channels; - stepconfig = STEPCONFIG_AVG_16 | STEPCONFIG_FIFO1; - for (i = steps; i < TOTAL_STEPS; i++) { - tiadc_writel(adc_dev, REG_STEPCONFIG(i), - stepconfig | STEPCONFIG_INP(channels)); - tiadc_writel(adc_dev, REG_STEPDELAY(i), + for (i = 0; i < adc_dev->channels; i++) { + int chan; + + chan = adc_dev->channel_line[i]; + tiadc_writel(adc_dev, REG_STEPCONFIG(steps), + stepconfig | STEPCONFIG_INP(chan)); + tiadc_writel(adc_dev, REG_STEPDELAY(steps), STEPCONFIG_OPENDLY); - channels++; + adc_dev->channel_step[i] = steps; + steps++; } step_en = get_adc_step_mask(adc_dev); am335x_tsc_se_set(adc_dev->mfd_tscadc, step_en); @@ -115,9 +119,9 @@ static int tiadc_channel_init(struct iio_dev *indio_dev, int channels) chan->type = IIO_VOLTAGE; chan->indexed = 1; - chan->channel = i; + chan->channel = adc_dev->channel_line[i]; chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW); - chan->datasheet_name = chan_name_ain[i]; + chan->datasheet_name = chan_name_ain[chan->channel]; chan->scan_type.sign = 'u'; chan->scan_type.realbits = 12; chan->scan_type.storagebits = 32; @@ -139,7 +143,8 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, { struct tiadc_device *adc_dev = iio_priv(indio_dev); int i; - unsigned int fifo1count, readx1; + unsigned int fifo1count, read; + u32 step = UINT_MAX; /* * When the sub-system is first enabled, @@ -152,11 +157,20 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, * Hence we need to flush out this data. */ + for (i = 0; i < ARRAY_SIZE(adc_dev->channel_step); i++) { + if (chan->channel == adc_dev->channel_line[i]) { + step = adc_dev->channel_step[i]; + break; + } + } + if (WARN_ON_ONCE(step == UINT_MAX)) + return -EINVAL; + fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); for (i = 0; i < fifo1count; i++) { - readx1 = tiadc_readl(adc_dev, REG_FIFO1); - if (i == chan->channel) - *val = readx1 & 0xfff; + read = tiadc_readl(adc_dev, REG_FIFO1); + if (read >> 16 == step) + *val = read & 0xfff; } am335x_tsc_se_update(adc_dev->mfd_tscadc); @@ -172,8 +186,11 @@ static int tiadc_probe(struct platform_device *pdev) struct iio_dev *indio_dev; struct tiadc_device *adc_dev; struct device_node *node = pdev->dev.of_node; + struct property *prop; + const __be32 *cur; int err; - u32 val32; + u32 val; + int channels = 0; if (!node) { dev_err(&pdev->dev, "Could not find valid DT data.\n"); @@ -190,11 +207,11 @@ static int tiadc_probe(struct platform_device *pdev) adc_dev->mfd_tscadc = ti_tscadc_dev_get(pdev); - err = of_property_read_u32(node, - "ti,adc-channels", &val32); - if (err < 0) - goto err_free_device; - adc_dev->channels = val32; + of_property_for_each_u32(node, "ti,adc-channels", prop, cur, val) { + adc_dev->channel_line[channels] = val; + channels++; + } + adc_dev->channels = channels; indio_dev->dev.parent = &pdev->dev; indio_dev->name = dev_name(&pdev->dev); diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 253233915009..b003a16ba227 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -91,9 +91,13 @@ static int ti_tscadc_probe(struct platform_device *pdev) struct clk *clk; struct device_node *node = pdev->dev.of_node; struct mfd_cell *cell; + struct property *prop; + const __be32 *cur; + u32 val; int err, ctrl; int clk_value, clock_rate; int tsc_wires = 0, adc_channels = 0, total_channels; + int readouts = 0; if (!pdev->dev.of_node) { dev_err(&pdev->dev, "Could not find valid DT data.\n"); @@ -102,10 +106,17 @@ static int ti_tscadc_probe(struct platform_device *pdev) node = of_get_child_by_name(pdev->dev.of_node, "tsc"); of_property_read_u32(node, "ti,wires", &tsc_wires); + of_property_read_u32(node, "ti,coordiante-readouts", &readouts); node = of_get_child_by_name(pdev->dev.of_node, "adc"); - of_property_read_u32(node, "ti,adc-channels", &adc_channels); - + of_property_for_each_u32(node, "ti,adc-channels", prop, cur, val) { + adc_channels++; + if (val > 7) { + dev_err(&pdev->dev, " PIN numbers are 0..7 (not %d)\n", + val); + return -EINVAL; + } + } total_channels = tsc_wires + adc_channels; if (total_channels > 8) { dev_err(&pdev->dev, "Number of i/p channels more than 8\n"); @@ -116,6 +127,11 @@ static int ti_tscadc_probe(struct platform_device *pdev) return -EINVAL; } + if (readouts * 2 + 2 + adc_channels > 16) { + dev_err(&pdev->dev, "Too many step configurations requested\n"); + return -EINVAL; + } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "no memory resource defined.\n"); -- cgit v1.2.3 From 5a9b5855c248d0298eac4d5490c7bc11c2f1983b Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Sat, 1 Jun 2013 23:39:38 -0700 Subject: ARM: sched_clock: Remove unused needs_suspend member The needs_suspend member is unused now that we always do the suspend/resume handling (see 6a4dae5 (ARM: 7565/1: sched: stop sched_clock() during suspend, 2012-10-23)). Acked-by: Will Deacon Signed-off-by: Stephen Boyd Signed-off-by: John Stultz --- arch/arm/kernel/sched_clock.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/kernel/sched_clock.c b/arch/arm/kernel/sched_clock.c index e8edcaa0e432..45efe86e8b08 100644 --- a/arch/arm/kernel/sched_clock.c +++ b/arch/arm/kernel/sched_clock.c @@ -24,7 +24,6 @@ struct clock_data { u32 mult; u32 shift; bool suspended; - bool needs_suspend; }; static void sched_clock_poll(unsigned long wrap_ticks); -- cgit v1.2.3 From ffbfb5e316f0db486798ccf1db36a577ffe79637 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Sat, 1 Jun 2013 23:39:39 -0700 Subject: ARM: sched_clock: Return suspended count earlier If we're suspended and sched_clock() is called we're going to read the hardware one more time and throw away that value and return back the cached value we saved during the suspend callback. This is wasteful. Let's short circuit all that and return the cached value as early as possible if we're suspended. Acked-by: Will Deacon Signed-off-by: Stephen Boyd Signed-off-by: John Stultz --- arch/arm/kernel/sched_clock.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/kernel/sched_clock.c b/arch/arm/kernel/sched_clock.c index 45efe86e8b08..a781c59b93c0 100644 --- a/arch/arm/kernel/sched_clock.c +++ b/arch/arm/kernel/sched_clock.c @@ -55,9 +55,6 @@ static unsigned long long notrace cyc_to_sched_clock(u32 cyc, u32 mask) u64 epoch_ns; u32 epoch_cyc; - if (cd.suspended) - return cd.epoch_ns; - /* * Load the epoch_cyc and epoch_ns atomically. We do this by * ensuring that we always write epoch_cyc, epoch_ns and @@ -174,6 +171,9 @@ unsigned long long __read_mostly (*sched_clock_func)(void) = sched_clock_32; unsigned long long notrace sched_clock(void) { + if (cd.suspended) + return cd.epoch_ns; + return sched_clock_func(); } -- cgit v1.2.3 From 38ff87f77af0b5a93fc8581cff1d6e5692ab8970 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Sat, 1 Jun 2013 23:39:40 -0700 Subject: sched_clock: Make ARM's sched_clock generic for all architectures Nothing about the sched_clock implementation in the ARM port is specific to the architecture. Generalize the code so that other architectures can use it by selecting GENERIC_SCHED_CLOCK. Signed-off-by: Stephen Boyd [jstultz: Merge minor collisions with other patches in my tree] Signed-off-by: John Stultz --- arch/arm/Kconfig | 1 + arch/arm/common/timer-sp.c | 2 +- arch/arm/include/asm/sched_clock.h | 16 --- arch/arm/kernel/Makefile | 2 +- arch/arm/kernel/arch_timer.c | 2 +- arch/arm/kernel/sched_clock.c | 216 ------------------------------ arch/arm/kernel/time.c | 4 +- arch/arm/mach-davinci/time.c | 2 +- arch/arm/mach-imx/time.c | 2 +- arch/arm/mach-integrator/integrator_ap.c | 2 +- arch/arm/mach-ixp4xx/common.c | 2 +- arch/arm/mach-mmp/time.c | 2 +- arch/arm/mach-msm/timer.c | 2 +- arch/arm/mach-omap1/time.c | 2 +- arch/arm/mach-omap2/timer.c | 2 +- arch/arm/mach-pxa/time.c | 2 +- arch/arm/mach-sa1100/time.c | 2 +- arch/arm/mach-u300/timer.c | 2 +- arch/arm/plat-iop/time.c | 2 +- arch/arm/plat-omap/counter_32k.c | 2 +- arch/arm/plat-orion/time.c | 2 +- arch/arm/plat-samsung/samsung-time.c | 2 +- arch/arm/plat-versatile/sched-clock.c | 2 +- drivers/clocksource/bcm2835_timer.c | 2 +- drivers/clocksource/clksrc-dbx500-prcmu.c | 3 +- drivers/clocksource/dw_apb_timer_of.c | 3 +- drivers/clocksource/mxs_timer.c | 2 +- drivers/clocksource/nomadik-mtu.c | 2 +- drivers/clocksource/samsung_pwm_timer.c | 2 +- drivers/clocksource/tegra20_timer.c | 2 +- drivers/clocksource/time-armada-370-xp.c | 2 +- drivers/clocksource/timer-marco.c | 2 +- drivers/clocksource/timer-prima2.c | 2 +- include/linux/sched_clock.h | 21 +++ init/Kconfig | 3 + init/main.c | 2 + kernel/time/Makefile | 1 + kernel/time/sched_clock.c | 215 +++++++++++++++++++++++++++++ 38 files changed, 273 insertions(+), 266 deletions(-) delete mode 100644 arch/arm/include/asm/sched_clock.h delete mode 100644 arch/arm/kernel/sched_clock.c create mode 100644 include/linux/sched_clock.h create mode 100644 kernel/time/sched_clock.c (limited to 'arch/arm') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 49d993cee512..53d3a356f61f 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -14,6 +14,7 @@ config ARM select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_PCI_IOMAP + select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD select GENERIC_IDLE_POLL_SETUP select GENERIC_STRNCPY_FROM_USER diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c index ddc740769601..023ee63827a2 100644 --- a/arch/arm/common/timer-sp.c +++ b/arch/arm/common/timer-sp.c @@ -28,8 +28,8 @@ #include #include #include +#include -#include #include #include diff --git a/arch/arm/include/asm/sched_clock.h b/arch/arm/include/asm/sched_clock.h deleted file mode 100644 index 3d520ddca61b..000000000000 --- a/arch/arm/include/asm/sched_clock.h +++ /dev/null @@ -1,16 +0,0 @@ -/* - * sched_clock.h: support for extending counters to full 64-bit ns counter - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#ifndef ASM_SCHED_CLOCK -#define ASM_SCHED_CLOCK - -extern void sched_clock_postinit(void); -extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate); - -extern unsigned long long (*sched_clock_func)(void); - -#endif diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile index 5f3338eacad2..97cb0576d07c 100644 --- a/arch/arm/kernel/Makefile +++ b/arch/arm/kernel/Makefile @@ -16,7 +16,7 @@ CFLAGS_REMOVE_return_address.o = -pg # Object file lists. obj-y := elf.o entry-armv.o entry-common.o irq.o opcodes.o \ - process.o ptrace.o return_address.o sched_clock.o \ + process.o ptrace.o return_address.o \ setup.o signal.o stacktrace.o sys_arm.o time.o traps.o obj-$(CONFIG_ATAGS) += atags_parse.o diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c index 59dcdced6e30..221f07b11ccb 100644 --- a/arch/arm/kernel/arch_timer.c +++ b/arch/arm/kernel/arch_timer.c @@ -11,9 +11,9 @@ #include #include #include +#include #include -#include #include diff --git a/arch/arm/kernel/sched_clock.c b/arch/arm/kernel/sched_clock.c deleted file mode 100644 index a781c59b93c0..000000000000 --- a/arch/arm/kernel/sched_clock.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * sched_clock.c: support for extending counters to full 64-bit ns counter - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -struct clock_data { - u64 epoch_ns; - u32 epoch_cyc; - u32 epoch_cyc_copy; - unsigned long rate; - u32 mult; - u32 shift; - bool suspended; -}; - -static void sched_clock_poll(unsigned long wrap_ticks); -static DEFINE_TIMER(sched_clock_timer, sched_clock_poll, 0, 0); -static int irqtime = -1; - -core_param(irqtime, irqtime, int, 0400); - -static struct clock_data cd = { - .mult = NSEC_PER_SEC / HZ, -}; - -static u32 __read_mostly sched_clock_mask = 0xffffffff; - -static u32 notrace jiffy_sched_clock_read(void) -{ - return (u32)(jiffies - INITIAL_JIFFIES); -} - -static u32 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read; - -static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift) -{ - return (cyc * mult) >> shift; -} - -static unsigned long long notrace cyc_to_sched_clock(u32 cyc, u32 mask) -{ - u64 epoch_ns; - u32 epoch_cyc; - - /* - * Load the epoch_cyc and epoch_ns atomically. We do this by - * ensuring that we always write epoch_cyc, epoch_ns and - * epoch_cyc_copy in strict order, and read them in strict order. - * If epoch_cyc and epoch_cyc_copy are not equal, then we're in - * the middle of an update, and we should repeat the load. - */ - do { - epoch_cyc = cd.epoch_cyc; - smp_rmb(); - epoch_ns = cd.epoch_ns; - smp_rmb(); - } while (epoch_cyc != cd.epoch_cyc_copy); - - return epoch_ns + cyc_to_ns((cyc - epoch_cyc) & mask, cd.mult, cd.shift); -} - -/* - * Atomically update the sched_clock epoch. - */ -static void notrace update_sched_clock(void) -{ - unsigned long flags; - u32 cyc; - u64 ns; - - cyc = read_sched_clock(); - ns = cd.epoch_ns + - cyc_to_ns((cyc - cd.epoch_cyc) & sched_clock_mask, - cd.mult, cd.shift); - /* - * Write epoch_cyc and epoch_ns in a way that the update is - * detectable in cyc_to_fixed_sched_clock(). - */ - raw_local_irq_save(flags); - cd.epoch_cyc_copy = cyc; - smp_wmb(); - cd.epoch_ns = ns; - smp_wmb(); - cd.epoch_cyc = cyc; - raw_local_irq_restore(flags); -} - -static void sched_clock_poll(unsigned long wrap_ticks) -{ - mod_timer(&sched_clock_timer, round_jiffies(jiffies + wrap_ticks)); - update_sched_clock(); -} - -void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate) -{ - unsigned long r, w; - u64 res, wrap; - char r_unit; - - if (cd.rate > rate) - return; - - BUG_ON(bits > 32); - WARN_ON(!irqs_disabled()); - read_sched_clock = read; - sched_clock_mask = (1 << bits) - 1; - cd.rate = rate; - - /* calculate the mult/shift to convert counter ticks to ns. */ - clocks_calc_mult_shift(&cd.mult, &cd.shift, rate, NSEC_PER_SEC, 0); - - r = rate; - if (r >= 4000000) { - r /= 1000000; - r_unit = 'M'; - } else if (r >= 1000) { - r /= 1000; - r_unit = 'k'; - } else - r_unit = ' '; - - /* calculate how many ns until we wrap */ - wrap = cyc_to_ns((1ULL << bits) - 1, cd.mult, cd.shift); - do_div(wrap, NSEC_PER_MSEC); - w = wrap; - - /* calculate the ns resolution of this counter */ - res = cyc_to_ns(1ULL, cd.mult, cd.shift); - pr_info("sched_clock: %u bits at %lu%cHz, resolution %lluns, wraps every %lums\n", - bits, r, r_unit, res, w); - - /* - * Start the timer to keep sched_clock() properly updated and - * sets the initial epoch. - */ - sched_clock_timer.data = msecs_to_jiffies(w - (w / 10)); - update_sched_clock(); - - /* - * Ensure that sched_clock() starts off at 0ns - */ - cd.epoch_ns = 0; - - /* Enable IRQ time accounting if we have a fast enough sched_clock */ - if (irqtime > 0 || (irqtime == -1 && rate >= 1000000)) - enable_sched_clock_irqtime(); - - pr_debug("Registered %pF as sched_clock source\n", read); -} - -static unsigned long long notrace sched_clock_32(void) -{ - u32 cyc = read_sched_clock(); - return cyc_to_sched_clock(cyc, sched_clock_mask); -} - -unsigned long long __read_mostly (*sched_clock_func)(void) = sched_clock_32; - -unsigned long long notrace sched_clock(void) -{ - if (cd.suspended) - return cd.epoch_ns; - - return sched_clock_func(); -} - -void __init sched_clock_postinit(void) -{ - /* - * If no sched_clock function has been provided at that point, - * make it the final one one. - */ - if (read_sched_clock == jiffy_sched_clock_read) - setup_sched_clock(jiffy_sched_clock_read, 32, HZ); - - sched_clock_poll(sched_clock_timer.data); -} - -static int sched_clock_suspend(void) -{ - sched_clock_poll(sched_clock_timer.data); - cd.suspended = true; - return 0; -} - -static void sched_clock_resume(void) -{ - cd.epoch_cyc = read_sched_clock(); - cd.epoch_cyc_copy = cd.epoch_cyc; - cd.suspended = false; -} - -static struct syscore_ops sched_clock_ops = { - .suspend = sched_clock_suspend, - .resume = sched_clock_resume, -}; - -static int __init sched_clock_syscore_init(void) -{ - register_syscore_ops(&sched_clock_ops); - return 0; -} -device_initcall(sched_clock_syscore_init); diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index abff4e9aaee0..98aee3258398 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -24,9 +24,9 @@ #include #include #include +#include #include -#include #include #include #include @@ -120,6 +120,4 @@ void __init time_init(void) machine_desc->init_time(); else clocksource_of_init(); - - sched_clock_postinit(); } diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c index bad361ec1666..7a55b5c95971 100644 --- a/arch/arm/mach-davinci/time.c +++ b/arch/arm/mach-davinci/time.c @@ -18,8 +18,8 @@ #include #include #include +#include -#include #include #include diff --git a/arch/arm/mach-imx/time.c b/arch/arm/mach-imx/time.c index fea91313678b..cd46529e9eaa 100644 --- a/arch/arm/mach-imx/time.c +++ b/arch/arm/mach-imx/time.c @@ -26,8 +26,8 @@ #include #include #include +#include -#include #include #include "common.h" diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c index b23c8e4f28e8..aa4346227c41 100644 --- a/arch/arm/mach-integrator/integrator_ap.c +++ b/arch/arm/mach-integrator/integrator_ap.c @@ -41,6 +41,7 @@ #include #include #include +#include #include