linaro-dev

linaro-dev@lists.linaro.org

4332 discussions

[GIT PULL] essential u-boot patches for imx6 sabrelite

by Eric Miao

The following changes since commit cba9a894fdb1cb49b60fcd1d1d6919cbd7995dd5: Prepare v2011.12 (2011-12-23 20:25:35 +0100) are available in the git repository at: git://git.linaro.org/bsp/freescale/u-boot-linaro.git lt-imx6 Dirk Behme (1): i.mx: i.mx6q: add the initial support for i.mx6q Sabre Lite board Eric Miao (2): i.mx6q: mx6qsabrelite: Change default mmcdev and boot command net/eth.c: fix eth_write_hwaddr() to use dev->enetaddr as fall back Fabio Estevam (1): sdhc_boot: Introduce CONFIG_FSL_FIXED_MMC_LOCATION option Jason Chen (1): i.mx: i.mx6q: add aisp tz init for Off-Platform Peripheral Jason Liu (5): i.mx: fsl_esdhc: add the i.mx6q support i.mx: i.mx6q: Add the enet clock function fec: add the i.mx6q enet driver support i.mx6q: arm2: Add the enet function support i.mx6q: mx6qsabrelite: Add the ethernet function support MAINTAINERS | 1 + arch/arm/cpu/armv7/mx6/clock.c | 5 + arch/arm/cpu/armv7/mx6/soc.c | 10 + board/freescale/common/Makefile | 2 +- board/freescale/common/sdhc_boot.c | 2 + board/freescale/mx6qarm2/mx6qarm2.c | 90 +++++++++ board/freescale/mx6qsabrelite/Makefile | 42 ++++ board/freescale/mx6qsabrelite/imximage.cfg | 170 ++++++++++++++++ board/freescale/mx6qsabrelite/mx6qsabrelite.c | 259 +++++++++++++++++++++++++ boards.cfg | 1 + drivers/mmc/fsl_esdhc.c | 12 +- drivers/net/fec_mxc.c | 10 + drivers/net/fec_mxc.h | 7 +- include/configs/MPC8536DS.h | 1 + include/configs/P1010RDB.h | 1 + include/configs/P1_P2_RDB.h | 1 + include/configs/P2020COME.h | 1 + include/configs/P2020DS.h | 1 + include/configs/P2041RDB.h | 1 + include/configs/corenet_ds.h | 1 + include/configs/mx6qarm2.h | 13 +- include/configs/mx6qsabrelite.h | 171 ++++++++++++++++ include/configs/p1_p2_rdb_pc.h | 1 + net/eth.c | 3 +- 24 files changed, 797 insertions(+), 9 deletions(-) create mode 100644 board/freescale/mx6qsabrelite/Makefile create mode 100644 board/freescale/mx6qsabrelite/imximage.cfg create mode 100644 board/freescale/mx6qsabrelite/mx6qsabrelite.c create mode 100644 include/configs/mx6qsabrelite.h

13 years, 4 months

[PATCH] cma: fix limit adjustment in dma_declare_contiguous()

by Mans Rullgard

The upper limit needs to be rounded down to a multiple of the alignment, not up. Signed-off-by: Mans Rullgard <mans.rullgard(a)linaro.org> --- drivers/base/dma-contiguous.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c index 924c052..e10120f 100644 --- a/drivers/base/dma-contiguous.c +++ b/drivers/base/dma-contiguous.c @@ -256,7 +256,7 @@ int __init dma_declare_contiguous(struct device *dev, unsigned long size, alignment = PAGE_SIZE << max(MAX_ORDER, pageblock_order); base = ALIGN(base, alignment); size = ALIGN(size, alignment); - limit = ALIGN(limit, alignment); + limit &= ~(alignment - 1); /* Reserve memory */ if (base) { -- 1.7.8.3

13 years, 4 months

Platform - WG Weekly Sync for Jan 10, 2012

by david.zinman＠linaro.org

Greetings, The meeting has been moved to UTC 18:00 to better accommodate some people. If you cannot be present please nominate someone to attend. The meeting has also moved over to a conference line in order to be more efficient and cover everything we need to in an hour. The details for the voice call are here: Toll : 1-719-867-1571 Toll free : 1-877-860-3058 Participant Passcode: 673 095 0042 - individual numbers are here:https://www.mymeetingroom.com/meetinginfo/callmanagement.asp?bwebid=98… Here is the skeleton for the agenda for this week's Working Goup - Platform Sync. Please add any items of interest. https://docs.google.com/a/linaro.org/document/d/1WKHp5ewRAbdwGKWuVFNW-Ucw92… Here is the proposed agenda: 1. Bug hunt 2. High priority topics that need attention If there is enough time left over: 3. Nominate a ‘lesson learned’ and action 4. Blueprint 5. Issues

13 years, 4 months

[ACTIVITY] OCTO weekly status report - wk01.2012 (20120102-20120206)

by Ilias Biris

Hello! Weekly status report is in more detail here https://wiki.linaro.org/OfficeofCTO/WeeklyRepor Last meeting minutes are here: https://wiki.linaro.org/OfficeofCTO/2012-01-03 Highlights - ARMHF: progress ongoing during the festive period for the Debian builds - as can be seen from the progress updates in https://buildd.debian.org/stats/graph-week-big.png almost 90% of the debian archive is now built for ARMHF. + There are some notable items missing still: webkit is missing (ongoing effort to complete it now - it will enable building kde/gnome once done) and ruby 1.9.1 as well as the gnat compiler (ADA) + For a more complete list of the current ARMHF progress please visit: http://wiki.debian.org/ArmHardFloatTodo - ARM Server + Outline blueprints for the ARM Server work is ongoing + Looking into the Server WG preparation + Platform Team (bridge to the Ubuntu Server) - will need to also take some blueprints / requirements Questions/comments ? Best regards, -- Ilias Biris ilias.biris(a)linaro.org Project Manager, Linaro M: +358504839608, IRC: ibiris Skype: ilias_biris Linaro.org│ Open source software for ARM SoCs

13 years, 4 months

[Activity] Power Management WG Weekly Status report for week ending 2012-01-06

by Mounir Bsaibes

Enclosed please find the link to the Weekly Status report & meeting minutes for the Power Management working group for the week ending 2012-01-06 == Weekly Status Report == https://wiki.linaro.org/WorkingGroups/PowerManagement/Status/2012-01-05 == Meeting Minutes == https://wiki.linaro.org/WorkingGroups/PowerManagement/Meetings/2012-01-04 == Summary == (For details, see the Weekly Status Report and Meeting Minutes ) * Linaro Connect planning on setting a mini-summit about the scheduler * Power Management initial sessions for next Linaro Connect lcq1-12 has been set, please see: http://summit.ubuntu.com/lcq1-12/track/linaro-power-management/ * Common cpuidle * Working on moving cpuidle code from arch/arm to the drivers/cpuidle directory. Then it will be easier to do the common code. * Common Clock * Working on v5 of the patches, but talks are somewhat stalled, need to re-energize the feedback in order to move forward agreeing on direction how the common clock should look like. * Thermal Driver * Working on i.MX6 thermal driver * Integrated Samsung Thermal Driver with Linaro-kernel * Following up on the Thermal management testing on Android. Best regards, Mounir -- Mounir Bsaibes Project Manager Follow Linaro.org: facebook.com/pages/Linaro/155974581091106 http://twitter.com/#!/linaroorg http://www.linaro.org/linaro-blog <http://www.linaro.org/linaro-blog>

13 years, 4 months

Initial support of HW video decode and XBMC at the Ubuntu LEB on a Pandaboard

by Ricardo Salveti

Hey folks, Just to point out my post about the work we've been doing to have hw video decode and XBMC to work with a Pandaboard, using the Ubuntu Linaro Evaluation Builds. http://rsalveti.wordpress.com/2012/01/06/hw-video-decode-and-xbmc-ubuntu-li… If you follow the instructions you should have hw video decode support and XBMC without any other step. At the moment there's still and annoying sink issue with XBMC, but we hope to get it fixed soon (at least once Rob Clark get a few spare cycles ;-). We hope to also have a set-top box image by the end of this cycle, that should use XBMC by default. Please give it a try and let us know about any other issue you may find. Thanks, -- Ricardo Salveti de Araujo

13 years, 4 months

[PATCH 0/6] Add SMDK5250 board support

by Chander Kashyap

This patchset add support for Samsung's SMDK5250 board based on EXYNOS5250 based SoC. It also adds support for MMC SPL booting. The porting is done by Samsung engineers at HQ in System LSI Team. I am contributing in upstreaming the code for the board. These patches are made on top of on the following patchset: "[PATCH 0/2] Exynos Related fixes" Chander Kashyap (6): Exynos: Add CONFIG_EXYNOS4 Macro to EXYNOS4 based boards Exynos: Clock.c: Use CONFIG_SYS_CLK_FREQ macro Exynos: Clock.c: Replace exynos4 prefix with exynos EEYNOS: Add SMDK5250 board support EXYNOS: SMDK5250: Add MMC SPL support SMDK5250: enable device tree support MAINTAINERS | 1 + arch/arm/cpu/armv7/exynos/clock.c | 80 ++-- arch/arm/include/asm/arch-exynos/clock.h | 232 +-------- arch/arm/include/asm/arch-exynos/clock_exynos4.h | 255 +++++++++ arch/arm/include/asm/arch-exynos/clock_exynos5.h | 352 +++++++++++++ arch/arm/include/asm/arch-exynos/cpu.h | 71 ++-- arch/arm/include/asm/arch-exynos/cpu_exynos4.h | 51 ++ arch/arm/include/asm/arch-exynos/cpu_exynos5.h | 39 ++ arch/arm/include/asm/arch-exynos/gpio.h | 51 ++- board/samsung/smdk5250/Makefile | 64 +++ board/samsung/smdk5250/lowlevel_init.S | 524 +++++++++++++++++++ board/samsung/smdk5250/mem_setup.S | 600 ++++++++++++++++++++++ board/samsung/smdk5250/mmc_boot.c | 58 ++ board/samsung/smdk5250/smdk5250.c | 125 +++++ board/samsung/smdk5250/smdk5250_setup.h | 583 +++++++++++++++++++++ board/samsung/smdk5250/tools/mkexynos_image.c | 117 +++++ boards.cfg | 1 + include/configs/origen.h | 1 + include/configs/s5pc210_universal.h | 2 + include/configs/smdk5250.h | 188 +++++++ include/configs/smdkv310.h | 1 + 21 files changed, 3094 insertions(+), 302 deletions(-) create mode 100644 arch/arm/include/asm/arch-exynos/clock_exynos4.h create mode 100644 arch/arm/include/asm/arch-exynos/clock_exynos5.h create mode 100644 arch/arm/include/asm/arch-exynos/cpu_exynos4.h create mode 100644 arch/arm/include/asm/arch-exynos/cpu_exynos5.h create mode 100644 board/samsung/smdk5250/Makefile create mode 100644 board/samsung/smdk5250/lowlevel_init.S create mode 100644 board/samsung/smdk5250/mem_setup.S create mode 100644 board/samsung/smdk5250/mmc_boot.c create mode 100644 board/samsung/smdk5250/smdk5250.c create mode 100644 board/samsung/smdk5250/smdk5250_setup.h create mode 100644 board/samsung/smdk5250/tools/mkexynos_image.c create mode 100644 include/configs/smdk5250.h -- 1.7.5.4

13 years, 4 months

[RFC] sched: Ensure cpu_power periodic update

by Vincent Guittot

With a lot of small tasks, the softirq sched is nearly never called when no_hz is enable. In this case the load_balance is mainly called with the newly_idle mode which doesn't update the cpu_power. Add a next_update field which ensure a maximum update period when there is short activity Signed-off-by: Vincent Guittot <vincent.guittot(a)linaro.org> --- include/linux/sched.h | 1 + kernel/sched/fair.c | 24 ++++++++++++++++-------- 2 files changed, 17 insertions(+), 8 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 64527c4..7178446 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -903,6 +903,7 @@ struct sched_group_power { * single CPU. */ unsigned int power, power_orig; + unsigned long next_update; /* * Number of busy cpus in this group. */ diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index a4d2b7a..809f484 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -215,6 +215,8 @@ calc_delta_mine(unsigned long delta_exec, unsigned long weight, const struct sched_class fair_sched_class; +static unsigned long __read_mostly max_load_balance_interval = HZ/10; + /************************************************************** * CFS operations on generic schedulable entities: */ @@ -3786,6 +3788,11 @@ void update_group_power(struct sched_domain *sd, int cpu) struct sched_domain *child = sd->child; struct sched_group *group, *sdg = sd->groups; unsigned long power; + unsigned long interval; + + interval = msecs_to_jiffies(sd->balance_interval); + interval = clamp(interval, 1UL, max_load_balance_interval); + sdg->sgp->next_update = jiffies + interval; if (!child) { update_cpu_power(sd, cpu); @@ -3893,12 +3900,15 @@ static inline void update_sg_lb_stats(struct sched_domain *sd, * domains. In the newly idle case, we will allow all the cpu's * to do the newly idle load balance. */ - if (idle != CPU_NEWLY_IDLE && local_group) { - if (balance_cpu != this_cpu) { - *balance = 0; - return; - } - update_group_power(sd, this_cpu); + if (local_group) { + if (idle != CPU_NEWLY_IDLE) { + if (balance_cpu != this_cpu) { + *balance = 0; + return; + } + update_group_power(sd, this_cpu); + } else if (time_after_eq(jiffies, group->sgp->next_update)) + update_group_power(sd, this_cpu); } /* Adjust by relative CPU power of the group */ @@ -4917,8 +4927,6 @@ void select_nohz_load_balancer(int stop_tick) static DEFINE_SPINLOCK(balancing); -static unsigned long __read_mostly max_load_balance_interval = HZ/10; - /* * Scale the max load_balance interval with the number of CPUs in the system. * This trades load-balance latency on larger machines for less cross talk. -- 1.7.4.1

13 years, 4 months

[REMINDER] Linaro 12.01 release dates and deliveries

by Fathi Boudra

Hi, This is a mail sent to remind you the coming release dates: * Toolchain WG components release is January 12th, 2012. * Platform/LTs/WGs components release is January 19th, 2012. * Linaro 12.01 RC images is January 23rd, 2012. * Linaro 12.01 release is January 26th, 2012. Please, confirm the list of components planned to be delivered this month: http://wiki.linaro.org/Cycles/1201/Release/Status The release dates and deliveries information is available from the releasedashboard: http://wiki.linaro.org/Cycles/1201/Release/Dashboard Cheers,-- Fathi Boudra Linaro Release Manager | Validation Project Manager Linaro.org | Open source software for ARM SoCs

13 years, 4 months

[PATCH] leds-lp5521: additional platform data and attributes

by Kim, Milo

* Changes of lp5521_platform_data > 'update_config' is added > 'name' is added Value of CONFIG register(Addr 08h) and name of led channels are dependant on the project. So these fields have been added in lp5521_platform_data. > led pattern data lp5521 has autonomous operation mode without external control. This patch includes how to configure the led patterns and load them. * Additional led class device attributes : delay_on, delay_off, blink For supporting blink mode, 3 attributes have been updated. * Additional i2c device attribute : led_pattern Platform specific led pattern can be loaded via the user-space. * Base kernel version : 3.0.9 Signed-off-by: Milo(Woogyom) Kim <milo.kim(a)ti.com> --- Documentation/leds/leds-lp5521.txt | 60 ++++++++++ drivers/leds/leds-lp5521.c | 222 +++++++++++++++++++++++++++++++++--- include/linux/leds-lp5521.h | 25 ++++ 3 files changed, 289 insertions(+), 18 deletions(-) diff --git a/Documentation/leds/leds-lp5521.txt b/Documentation/leds/leds-lp5521.txt index c4d8d15..b0d6abe 100644 --- a/Documentation/leds/leds-lp5521.txt +++ b/Documentation/leds/leds-lp5521.txt @@ -3,6 +3,7 @@ Kernel driver for lp5521 * National Semiconductor LP5521 led driver chip * Datasheet: http://www.national.com/pf/LP/LP5521.html + or http://www.ti.com/product/lp5521 Authors: Mathias Nyman, Yuri Zaporozhets, Samu Onkalo Contact: Samu Onkalo (samu.p.onkalo-at-nokia.com) @@ -43,17 +44,23 @@ Format: 10x mA i.e 10 means 1.0 mA example platform data: Note: chan_nr can have values between 0 and 2. +Each channel can have own name. +If name field is not defined, the default name will be set to 'xxxx:channelN' +(XXXX : pdata->label or i2c client name, N : channel number) static struct lp5521_led_config lp5521_led_config[] = { { + .name = "red", .chan_nr = 0, .led_current = 50, .max_current = 130, }, { + .name = "green", .chan_nr = 1, .led_current = 0, .max_current = 130, }, { + .name = "blue", .chan_nr = 2, .led_current = 0, .max_current = 130, @@ -86,3 +93,56 @@ static struct lp5521_platform_data lp5521_platform_data = { If the current is set to 0 in the platform data, that channel is disabled and it is not visible in the sysfs. + +update_config : CONFIG register (ADDR 08h) +This value is platform-specific data. If NULL, the default value will be set. + +example) + +#define LP5521_CONFIGS (LP5521_PWM_HF | LP5521_PWRSAVE_EN | \ + LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT | \ + LP5521_CLK_INT) + +static struct lp5521_platform_data lp5521_pdata = { + .led_config = lp5521_led_config, + .num_channels = ARRAY_SIZE(lp5521_led_config), + .clock_mode = LP5521_CLOCK_INT, + .update_config = LP5521_CONFIGS, +}; + +LED patterns : LP5521 has autonomous operation without external control. +Pattern data can be defined in the platform data. + +example) +/* Pattern : RGB(50,5,0) 500ms on, 500ms off, infinite loop */ +static u8 pattern_red[] = { + 0x40, 0x32, 0x60, 0x00, 0x40, 0x00, 0x60, 0x00, + }; + +static u8 pattern_green[] = { + 0x40, 0x05, 0x60, 0x00, 0x40, 0x00, 0x60, 0x00, + }; + +static struct lp5521_led_pattern board_led_patterns[] = { + { + .r = pattern_r, + .g = pattern_g, + .size_r = ARRAY_SIZE(pattern_r), + .size_g = ARRAY_SIZE(pattern_g), + }, +}; + +static struct lp5521_platform_data lp5521_platform_data = { + .led_config = lp5521_led_config, + .num_channels = ARRAY_SIZE(lp5521_led_config), + .clock_mode = LP5521_CLOCK_EXT, + .patterns = board_led_patterns, + .num_patterns = ARRAY_SIZE(board_led_patterns), +}; + +Then the predefined led pattern can be executed via the user-space. +To start the pattern #1, +# echo 1 > /sys/bus/i2c/devices/xxxx/led_pattern +(xxxx : i2c bus & slave address) +To end the pattern, +# echo 0 > /sys/bus/i2c/devices/xxxx/led_pattern diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index cc1dc48..8239319 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -80,23 +80,23 @@ /* Bits in ENABLE register */ #define LP5521_MASTER_ENABLE 0x40 /* Chip master enable */ #define LP5521_LOGARITHMIC_PWM 0x80 /* Logarithmic PWM adjustment */ +#define LP5521_EXEC_MASK 0xC0 #define LP5521_EXEC_RUN 0x2A - -/* Bits in CONFIG register */ -#define LP5521_PWM_HF 0x40 /* PWM: 0 = 256Hz, 1 = 558Hz */ -#define LP5521_PWRSAVE_EN 0x20 /* 1 = Power save mode */ -#define LP5521_CP_MODE_OFF 0 /* Charge pump (CP) off */ -#define LP5521_CP_MODE_BYPASS 8 /* CP forced to bypass mode */ -#define LP5521_CP_MODE_1X5 0x10 /* CP forced to 1.5x mode */ -#define LP5521_CP_MODE_AUTO 0x18 /* Automatic mode selection */ -#define LP5521_R_TO_BATT 4 /* R out: 0 = CP, 1 = Vbat */ -#define LP5521_CLK_SRC_EXT 0 /* Ext-clk source (CLK_32K) */ -#define LP5521_CLK_INT 1 /* Internal clock */ -#define LP5521_CLK_AUTO 2 /* Automatic clock selection */ +#define LP5521_EXEC_HOLD 0x00 +#define LP5521_ENABLE_DEFAULT \ + (LP5521_MASTER_ENABLE | LP5521_LOGARITHMIC_PWM) +#define LP5521_ENABLE_RUN_PROGRAM \ + (LP5521_ENABLE_DEFAULT | LP5521_EXEC_RUN) /* Status */ #define LP5521_EXT_CLK_USED 0x08 +/* Blink mode */ +#define ALWAYS_OFF 0 + +/* Pattern Mode */ +#define PATTERN_OFF 0 + struct lp5521_engine { int id; u8 mode; @@ -112,6 +112,8 @@ struct lp5521_led { struct led_classdev cdev; struct work_struct brightness_work; u8 brightness; + int delay_on; + int delay_off; }; struct lp5521_chip { @@ -237,6 +239,7 @@ static void lp5521_init_engine(struct lp5521_chip *chip) static int lp5521_configure(struct i2c_client *client) { struct lp5521_chip *chip = i2c_get_clientdata(client); + u8 cfg = chip->pdata->update_config; int ret; lp5521_init_engine(chip); @@ -244,9 +247,12 @@ static int lp5521_configure(struct i2c_client *client) /* Set all PWMs to direct control mode */ ret = lp5521_write(client, LP5521_REG_OP_MODE, 0x3F); - /* Enable auto-powersave, set charge pump to auto, red to battery */ - ret |= lp5521_write(client, LP5521_REG_CONFIG, - LP5521_PWRSAVE_EN | LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT); + if (cfg) + ret |= lp5521_write(client, LP5521_REG_CONFIG, cfg); + else + ret |= lp5521_write(client, LP5521_REG_CONFIG, + LP5521_PWRSAVE_EN | LP5521_CP_MODE_AUTO | + LP5521_R_TO_BATT); /* Initialize all channels PWM to zero -> leds off */ ret |= lp5521_write(client, LP5521_REG_R_PWM, 0); @@ -533,13 +539,184 @@ static ssize_t lp5521_selftest(struct device *dev, return sprintf(buf, "%s\n", ret ? "FAIL" : "OK"); } +static void lp5521_clear_program_memory(struct i2c_client *cl) +{ + int i; + u8 rgb_mem[] = { + LP5521_REG_R_PROG_MEM, + LP5521_REG_G_PROG_MEM, + LP5521_REG_B_PROG_MEM, + }; + + for (i = 0; i < ARRAY_SIZE(rgb_mem); i++) { + lp5521_write(cl, rgb_mem[i], 0); + lp5521_write(cl, rgb_mem[i] + 1, 0); + } +} + +static void lp5521_write_program_memory(struct i2c_client *cl, + u8 base, u8 *rgb, int size) +{ + int i; + + if (!rgb || size <= 0) + return; + + for (i = 0; i < size; i++) + lp5521_write(cl, base + i, *(rgb + i)); + + lp5521_write(cl, base + i, 0); + lp5521_write(cl, base + i + 1, 0); +} + +static inline struct lp5521_led_pattern *lp5521_get_pattern + (struct lp5521_chip *chip, u8 offset) +{ + struct lp5521_led_pattern *pattern; + pattern = chip->pdata->patterns + (offset - 1); + return pattern; +} + +static void lp5521_run_led_pattern(int mode, struct lp5521_chip *chip) +{ + struct lp5521_led_pattern *ptn; + struct i2c_client *cl = chip->client; + u8 num_patterns = chip->pdata->num_patterns; + + if (mode > num_patterns || !(chip->pdata->patterns)) + return; + + if (mode == PATTERN_OFF) { + lp5521_write(cl, LP5521_REG_ENABLE, LP5521_ENABLE_DEFAULT); + usleep_range(1000, 2000); + lp5521_write(cl, LP5521_REG_OP_MODE, LP5521_CMD_DIRECT); + } else { + ptn = lp5521_get_pattern(chip, mode); + if (!ptn) + return; + + lp5521_write(cl, LP5521_REG_OP_MODE, LP5521_CMD_LOAD); + usleep_range(1000, 2000); + + lp5521_clear_program_memory(cl); + + lp5521_write_program_memory(cl, LP5521_REG_R_PROG_MEM, + ptn->r, ptn->size_r); + lp5521_write_program_memory(cl, LP5521_REG_G_PROG_MEM, + ptn->g, ptn->size_g); + lp5521_write_program_memory(cl, LP5521_REG_B_PROG_MEM, + ptn->b, ptn->size_b); + + lp5521_write(cl, LP5521_REG_OP_MODE, LP5521_CMD_RUN); + usleep_range(1000, 2000); + lp5521_write(cl, LP5521_REG_ENABLE, LP5521_ENABLE_RUN_PROGRAM); + } +} + +static ssize_t store_led_pattern(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct lp5521_chip *chip = i2c_get_clientdata(to_i2c_client(dev)); + unsigned long val; + int ret; + + ret = strict_strtoul(buf, 16, &val); + if (ret) + return ret; + + lp5521_run_led_pattern(val, chip); + + return len; +} + +static ssize_t show_delay_on(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct lp5521_led *led = cdev_to_led(led_cdev); + + return sprintf(buf, "%d\n", led->delay_on); +} + +static ssize_t store_delay_on(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct lp5521_led *led = cdev_to_led(led_cdev); + unsigned long curr; + + if (strict_strtoul(buf, 0, &curr)) + return -EINVAL; + + led->delay_on = (int)curr; + + return len; +} + +static ssize_t show_delay_off(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct lp5521_led *led = cdev_to_led(led_cdev); + + return sprintf(buf, "%d\n", led->delay_off); +} + +static ssize_t store_delay_off(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct lp5521_led *led = cdev_to_led(led_cdev); + unsigned long curr; + + if (strict_strtoul(buf, 0, &curr)) + return -EINVAL; + + led->delay_off = (int)curr; + + return len; +} + +static ssize_t store_blink(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct lp5521_led *led = cdev_to_led(led_cdev); + unsigned long is_blink_set; + unsigned long on = led->delay_on; + unsigned long off = led->delay_off; + + if (strict_strtoul(buf, 0, &is_blink_set)) + return -EINVAL; + + if (!is_blink_set) + on = ALWAYS_OFF; + + led_blink_set(led_cdev, &on, &off); + + return len; +} + /* led class device attributes */ static DEVICE_ATTR(led_current, S_IRUGO | S_IWUSR, show_current, store_current); static DEVICE_ATTR(max_current, S_IRUGO , show_max_current, NULL); +static DEVICE_ATTR(delay_on, S_IRUGO | S_IWUSR, show_delay_on, store_delay_on); +static DEVICE_ATTR(delay_off, S_IRUGO | S_IWUSR, show_delay_off, + store_delay_off); +static DEVICE_ATTR(blink, S_IWUSR, NULL, store_blink); static struct attribute *lp5521_led_attributes[] = { &dev_attr_led_current.attr, &dev_attr_max_current.attr, + &dev_attr_delay_on.attr, + &dev_attr_delay_off.attr, + &dev_attr_blink.attr, NULL, }; @@ -558,6 +735,7 @@ static DEVICE_ATTR(engine1_load, S_IWUSR, NULL, store_engine1_load); static DEVICE_ATTR(engine2_load, S_IWUSR, NULL, store_engine2_load); static DEVICE_ATTR(engine3_load, S_IWUSR, NULL, store_engine3_load); static DEVICE_ATTR(selftest, S_IRUGO, lp5521_selftest, NULL); +static DEVICE_ATTR(led_pattern, S_IWUSR, NULL, store_led_pattern); static struct attribute *lp5521_attributes[] = { &dev_attr_engine1_mode.attr, @@ -567,6 +745,7 @@ static struct attribute *lp5521_attributes[] = { &dev_attr_engine1_load.attr, &dev_attr_engine2_load.attr, &dev_attr_engine3_load.attr, + &dev_attr_led_pattern.attr, NULL }; @@ -617,10 +796,16 @@ static int __devinit lp5521_init_led(struct lp5521_led *led, return -EINVAL; } - snprintf(name, sizeof(name), "%s:channel%d", - pdata->label ?: client->name, chan); led->cdev.brightness_set = lp5521_set_brightness; - led->cdev.name = name; + + if (pdata->led_config[chan].name) { + led->cdev.name = pdata->led_config[chan].name; + } else { + snprintf(name, sizeof(name), "%s:channel%d", + pdata->label ?: client->name, chan); + led->cdev.name = name; + } + res = led_classdev_register(dev, &led->cdev); if (res < 0) { dev_err(dev, "couldn't register led on channel %d\n", chan); @@ -749,6 +934,7 @@ static int lp5521_remove(struct i2c_client *client) struct lp5521_chip *chip = i2c_get_clientdata(client); int i; + lp5521_run_led_pattern(PATTERN_OFF, chip); lp5521_unregister_sysfs(client); for (i = 0; i < chip->num_leds; i++) { diff --git a/include/linux/leds-lp5521.h b/include/linux/leds-lp5521.h index fd548d2..c842527 100644 --- a/include/linux/leds-lp5521.h +++ b/include/linux/leds-lp5521.h @@ -26,23 +26,48 @@ /* See Documentation/leds/leds-lp5521.txt */ struct lp5521_led_config { + char *name; u8 chan_nr; u8 led_current; /* mA x10, 0 if led is not connected */ u8 max_current; }; +struct lp5521_led_pattern { + u8 *r; + u8 *g; + u8 *b; + u8 size_r; + u8 size_g; + u8 size_b; +}; + #define LP5521_CLOCK_AUTO 0 #define LP5521_CLOCK_INT 1 #define LP5521_CLOCK_EXT 2 +/* Bits in CONFIG register */ +#define LP5521_PWM_HF 0x40 /* PWM: 0 = 256Hz, 1 = 558Hz */ +#define LP5521_PWRSAVE_EN 0x20 /* 1 = Power save mode */ +#define LP5521_CP_MODE_OFF 0 /* Charge pump (CP) off */ +#define LP5521_CP_MODE_BYPASS 8 /* CP forced to bypass mode */ +#define LP5521_CP_MODE_1X5 0x10 /* CP forced to 1.5x mode */ +#define LP5521_CP_MODE_AUTO 0x18 /* Automatic mode selection */ +#define LP5521_R_TO_BATT 4 /* R out: 0 = CP, 1 = Vbat */ +#define LP5521_CLK_SRC_EXT 0 /* Ext-clk source (CLK_32K) */ +#define LP5521_CLK_INT 1 /* Internal clock */ +#define LP5521_CLK_AUTO 2 /* Automatic clock selection */ + struct lp5521_platform_data { struct lp5521_led_config *led_config; u8 num_channels; u8 clock_mode; + u8 update_config; int (*setup_resources)(void); void (*release_resources)(void); void (*enable)(bool state); const char *label; + struct lp5521_led_pattern *patterns; + u8 num_patterns; }; #endif /* __LINUX_LP5521_H */ -- 1.7.4.1 Best Regards Milo (Woogyom) Kim Texas Instruments Incorporated

13 years, 4 months

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

linaro-dev