From 65900d7177d806f861f345d99d7228fe7d3fc423 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Fri, 3 Oct 2008 09:00:48 -0700 Subject: [PATCH] twl4030-core cleanup A variety of twl4030-core cleanups: - SIH register declarations moved from core.c to twl4030.h, for keypad, madc, bci; this decouples from twl4030-madc.h; add several omitted register decls; remove a duplicate. - Use a global "inuse" flag, not a per-slave one; - Remove pointless SLAVENUM_NUM symbols; just use 0/1/2/3 - Comments: * Add comments: header, register values * Add some section delimiters * Correct clock init and other comments - Minor stuff: * Group some variables and code with sibling * Make clock init a bit simpler * List twl5030 in supported i2c chips list * Remove needless "return;" And one IRQ-related bugfix: if the I2C timeout bug strikes while reading PIH interrupt status, force an immediate retry. Otherwise the twl4030 IRQ will never get re-enabled... Object size shrinks by 180 bytes, w00t! Signed-off-by: David Brownell Signed-off-by: Tony Lindgren --- drivers/mfd/twl4030-core.c | 269 +++++++++++++++---------------- include/linux/i2c/twl4030-madc.h | 8 - include/linux/i2c/twl4030.h | 51 ++++++ 3 files changed, 184 insertions(+), 144 deletions(-) diff --git a/drivers/mfd/twl4030-core.c b/drivers/mfd/twl4030-core.c index f7e717a5eff..c1aac32088b 100644 --- a/drivers/mfd/twl4030-core.c +++ b/drivers/mfd/twl4030-core.c @@ -39,7 +39,20 @@ #include #include -#include + + +/* + * The TWL4030 "Triton 2" is one of a family of a multi-function "Power + * Management and System Companion Device" chips originally designed for + * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C, + * often at around 3 Mbit/sec, including for interrupt handling. + * + * This driver core provides genirq support for the interrupts emitted, + * by the various modules, and exports register access primitives. + * + * FIXME this driver currently requires use of the first interrupt line + * (and associated registers). + */ #define DRIVER_NAME "twl4030" @@ -108,23 +121,20 @@ static inline void activate_irq(int irq) #define TWL4030_NUM_SLAVES 4 -/* Slave address */ -#define TWL4030_SLAVENUM_NUM0 0x00 -#define TWL4030_SLAVENUM_NUM1 0x01 -#define TWL4030_SLAVENUM_NUM2 0x02 -#define TWL4030_SLAVENUM_NUM3 0x03 -/* Base Address defns */ -/* USB ID */ +/* Base Address defns for twl4030_map[] */ + +/* subchip/slave 0 - USB ID */ #define TWL4030_BASEADD_USB 0x0000 -/* AUD ID */ + +/* subchip/slave 1 - AUD ID */ #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 #define TWL4030_BASEADD_GPIO 0x0098 - #define TWL4030_BASEADD_INTBR 0x0085 #define TWL4030_BASEADD_PIH 0x0080 #define TWL4030_BASEADD_TEST 0x004C -/* AUX ID */ + +/* subchip/slave 2 - AUX ID */ #define TWL4030_BASEADD_INTERRUPTS 0x00B9 #define TWL4030_BASEADD_LED 0x00EE #define TWL4030_BASEADD_MADC 0x0000 @@ -135,7 +145,8 @@ static inline void activate_irq(int irq) #define TWL4030_BASEADD_PWMA 0x00EF #define TWL4030_BASEADD_PWMB 0x00F1 #define TWL4030_BASEADD_KEYPAD 0x00D2 -/* POWER ID */ + +/* subchip/slave 3 - POWER ID */ #define TWL4030_BASEADD_BACKUP 0x0014 #define TWL4030_BASEADD_INT 0x002E #define TWL4030_BASEADD_PM_MASTER 0x0036 @@ -143,44 +154,26 @@ static inline void activate_irq(int irq) #define TWL4030_BASEADD_RTC 0x001C #define TWL4030_BASEADD_SECURED_REG 0x0000 -/* TWL4030 BCI registers */ -#define TWL4030_INTERRUPTS_BCIIMR1A 0x2 -#define TWL4030_INTERRUPTS_BCIIMR2A 0x3 -#define TWL4030_INTERRUPTS_BCIIMR1B 0x6 -#define TWL4030_INTERRUPTS_BCIIMR2B 0x7 -#define TWL4030_INTERRUPTS_BCIISR1A 0x0 -#define TWL4030_INTERRUPTS_BCIISR2A 0x1 -#define TWL4030_INTERRUPTS_BCIISR1B 0x4 -#define TWL4030_INTERRUPTS_BCIISR2B 0x5 - -/* TWL4030 keypad registers */ -#define TWL4030_KEYPAD_KEYP_IMR1 0x12 -#define TWL4030_KEYPAD_KEYP_IMR2 0x14 -#define TWL4030_KEYPAD_KEYP_ISR1 0x11 -#define TWL4030_KEYPAD_KEYP_ISR2 0x13 - - /* Triton Core internal information (END) */ + /* Few power values */ #define R_CFG_BOOT 0x05 #define R_PROTECT_KEY 0x0E -/* access control */ +/* access control values for R_PROTECT_KEY */ #define KEY_UNLOCK1 0xce #define KEY_UNLOCK2 0xec #define KEY_LOCK 0x00 +/* some fields in R_CFG_BOOT */ #define HFCLK_FREQ_19p2_MHZ (1 << 0) #define HFCLK_FREQ_26_MHZ (2 << 0) #define HFCLK_FREQ_38p4_MHZ (3 << 0) #define HIGH_PERF_SQ (1 << 3) -/* SIH_CTRL registers that aren't defined elsewhere */ -#define TWL4030_INTERRUPTS_BCISIHCTRL 0x0d -#define TWL4030_MADC_MADC_SIH_CTRL 0x67 -#define TWL4030_KEYPAD_KEYP_SIH_CTRL 0x17 +/*----------------------------------------------------------------------*/ /** * struct twl4030_mod_iregs - TWL module IMR/ISR regs to mask/clear at init @@ -291,7 +284,7 @@ static const struct twl4030_mod_iregs __initconst twl4030_mod_regs[] = { }, { .mod_no = TWL4030_MODULE_MADC, - .sih_ctrl = TWL4030_MADC_MADC_SIH_CTRL, + .sih_ctrl = TWL4030_MADC_SIH_CTRL, .reg_cnt = ARRAY_SIZE(twl4030_madc_imr_regs), .imrs = twl4030_madc_imr_regs, .isrs = twl4030_madc_isr_regs, @@ -312,16 +305,15 @@ static const struct twl4030_mod_iregs __initconst twl4030_mod_regs[] = { }, }; +/*----------------------------------------------------------------*/ -/* Data Structures */ -/* To have info on T2 IRQ substem activated or not */ -static struct completion irq_event; +/* is driver active, bound to a chip? */ +static bool inuse; -/* Structure to define on TWL4030 Slave ID */ +/* Structure for each TWL4030 Slave */ struct twl4030_client { struct i2c_client *client; u8 address; - bool inuse; /* max numb of i2c_msg required is for read =2 */ struct i2c_msg xfer_msg[2]; @@ -330,13 +322,15 @@ struct twl4030_client { struct mutex xfer_lock; }; -/* Module Mapping */ +static struct twl4030_client twl4030_modules[TWL4030_NUM_SLAVES]; + + +/* mapping the module id to slave id and base address */ struct twl4030mapping { unsigned char sid; /* Slave ID */ unsigned char base; /* base address */ }; -/* mapping the module id to slave id and base address */ static struct twl4030mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { /* * NOTE: don't change this table without updating the @@ -344,38 +338,39 @@ static struct twl4030mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { * so they continue to match the order in this table. */ - { TWL4030_SLAVENUM_NUM0, TWL4030_BASEADD_USB }, - - { TWL4030_SLAVENUM_NUM1, TWL4030_BASEADD_AUDIO_VOICE }, - { TWL4030_SLAVENUM_NUM1, TWL4030_BASEADD_GPIO }, - { TWL4030_SLAVENUM_NUM1, TWL4030_BASEADD_INTBR }, - { TWL4030_SLAVENUM_NUM1, TWL4030_BASEADD_PIH }, - { TWL4030_SLAVENUM_NUM1, TWL4030_BASEADD_TEST }, - - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_KEYPAD }, - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_MADC }, - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_INTERRUPTS }, - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_LED }, - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_MAIN_CHARGE }, - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_PRECHARGE }, - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_PWM0 }, - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_PWM1 }, - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_PWMA }, - { TWL4030_SLAVENUM_NUM2, TWL4030_BASEADD_PWMB }, - - { TWL4030_SLAVENUM_NUM3, TWL4030_BASEADD_BACKUP }, - { TWL4030_SLAVENUM_NUM3, TWL4030_BASEADD_INT }, - { TWL4030_SLAVENUM_NUM3, TWL4030_BASEADD_PM_MASTER }, - { TWL4030_SLAVENUM_NUM3, TWL4030_BASEADD_PM_RECEIVER }, - { TWL4030_SLAVENUM_NUM3, TWL4030_BASEADD_RTC }, - { TWL4030_SLAVENUM_NUM3, TWL4030_BASEADD_SECURED_REG }, + { 0, TWL4030_BASEADD_USB }, + + { 1, TWL4030_BASEADD_AUDIO_VOICE }, + { 1, TWL4030_BASEADD_GPIO }, + { 1, TWL4030_BASEADD_INTBR }, + { 1, TWL4030_BASEADD_PIH }, + { 1, TWL4030_BASEADD_TEST }, + + { 2, TWL4030_BASEADD_KEYPAD }, + { 2, TWL4030_BASEADD_MADC }, + { 2, TWL4030_BASEADD_INTERRUPTS }, + { 2, TWL4030_BASEADD_LED }, + { 2, TWL4030_BASEADD_MAIN_CHARGE }, + { 2, TWL4030_BASEADD_PRECHARGE }, + { 2, TWL4030_BASEADD_PWM0 }, + { 2, TWL4030_BASEADD_PWM1 }, + { 2, TWL4030_BASEADD_PWMA }, + { 2, TWL4030_BASEADD_PWMB }, + + { 3, TWL4030_BASEADD_BACKUP }, + { 3, TWL4030_BASEADD_INT }, + { 3, TWL4030_BASEADD_PM_MASTER }, + { 3, TWL4030_BASEADD_PM_RECEIVER }, + { 3, TWL4030_BASEADD_RTC }, + { 3, TWL4030_BASEADD_SECURED_REG }, }; -static struct twl4030_client twl4030_modules[TWL4030_NUM_SLAVES]; +/*----------------------------------------------------------------------*/ /* * TWL4030 doesn't have PIH mask, hence dummy function for mask - * and unmask. + * and unmask of the (eight) interrupts reported at that level ... + * masking is only available from SIH (secondary) modules. */ static void twl4030_i2c_ackirq(unsigned int irq) @@ -390,7 +385,6 @@ static void twl4030_i2c_enableint(unsigned int irq) { } -/* information for processing in the Work Item */ static struct irq_chip twl4030_irq_chip = { .name = "twl4030", .ack = twl4030_i2c_ackirq, @@ -398,7 +392,9 @@ static struct irq_chip twl4030_irq_chip = { .unmask = twl4030_i2c_enableint, }; -/* Global Functions */ +/*----------------------------------------------------------------------*/ + +/* Exported Functions */ /** * twl4030_i2c_write - Writes a n bit register in TWL4030 @@ -426,7 +422,7 @@ int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, u8 num_bytes) sid = twl4030_map[mod_no].sid; twl = &twl4030_modules[sid]; - if (unlikely(!twl->inuse)) { + if (unlikely(!inuse)) { pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); return -EPERM; } @@ -476,7 +472,7 @@ int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes) sid = twl4030_map[mod_no].sid; twl = &twl4030_modules[sid]; - if (unlikely(!twl->inuse)) { + if (unlikely(!inuse)) { pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); return -EPERM; } @@ -537,12 +533,12 @@ int twl4030_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) } EXPORT_SYMBOL(twl4030_i2c_read_u8); -/* Helper Functions */ +/*----------------------------------------------------------------------*/ /* * do_twl4030_module_irq() is the desc->handle method for each of the twl4030 - * module interrupts. It executes in kernel thread context. - * On entry, cpu interrupts are disabled. + * module interrupts that doesn't chain to another irq_chip (GPIO, power, etc). + * It executes in kernel thread context. On entry, cpu interrupts are disabled. */ static void do_twl4030_module_irq(unsigned int irq, irq_desc_t *desc) { @@ -603,10 +599,10 @@ static void do_twl4030_module_irq(unsigned int irq, irq_desc_t *desc) static unsigned twl4030_irq_base; +static struct completion irq_event; + /* - * twl4030_irq_thread() runs as a kernel thread. It queries the twl4030 - * interrupt controller to see which modules are generating interrupt requests - * and then calls the desc->handle method for each module requesting service. + * This thread processes interrupts reported by the Primary Interrupt Handler. */ static int twl4030_irq_thread(void *data) { @@ -623,34 +619,36 @@ static int twl4030_irq_thread(void *data) int module_irq; u8 pih_isr; + /* Wait for IRQ, then read PIH irq status (also blocking) */ wait_for_completion_interruptible(&irq_event); ret = twl4030_i2c_read_u8(TWL4030_MODULE_PIH, &pih_isr, REG_PIH_ISR_P1); if (ret) { - printk(KERN_WARNING "I2C error %d while reading TWL4030" - " PIH ISR register.\n", ret); + pr_warning("%s: I2C error %d reading PIH ISR\n", + DRIVER_NAME, ret); if (++i2c_errors >= max_i2c_errors) { printk(KERN_ERR "Maximum I2C error count" " exceeded. Terminating %s.\n", __func__); break; } + complete(&irq_event); continue; } - for (module_irq = twl4030_irq_base; 0 != pih_isr; - pih_isr >>= 1, module_irq++) { + /* these handlers deal with the relevant SIH irq status */ + local_irq_disable(); + for (module_irq = twl4030_irq_base; + pih_isr; + pih_isr >>= 1, module_irq++) { if (pih_isr & 0x1) { irq_desc_t *d = irq_desc + module_irq; - local_irq_disable(); - d->handle_irq(module_irq, d); - - local_irq_enable(); } } + local_irq_enable(); desc->chip->unmask(irq); } @@ -688,6 +686,22 @@ static void do_twl4030_irq(unsigned int irq, irq_desc_t *desc) } } +static struct task_struct * __init start_twl4030_irq_thread(long irq) +{ + struct task_struct *thread; + + init_completion(&irq_event); + thread = kthread_run(twl4030_irq_thread, (void *)irq, + "twl4030 irq %ld", irq); + if (!thread) + pr_err("%s: could not create twl4030 irq %ld thread!\n", + DRIVER_NAME, irq); + + return thread; +} + +/*----------------------------------------------------------------------*/ + static int add_children(struct twl4030_platform_data *pdata) { struct platform_device *pdev = NULL; @@ -695,7 +709,7 @@ static int add_children(struct twl4030_platform_data *pdata) int status = 0; if (twl_has_bci() && pdata->bci) { - twl = &twl4030_modules[TWL4030_SLAVENUM_NUM3]; + twl = &twl4030_modules[3]; pdev = platform_device_alloc("twl4030_bci", -1); if (!pdev) { @@ -738,7 +752,7 @@ static int add_children(struct twl4030_platform_data *pdata) } if (twl_has_gpio() && pdata->gpio) { - twl = &twl4030_modules[TWL4030_SLAVENUM_NUM1]; + twl = &twl4030_modules[1]; pdev = platform_device_alloc("twl4030_gpio", -1); if (!pdev) { @@ -787,7 +801,7 @@ static int add_children(struct twl4030_platform_data *pdata) if (twl_has_keypad() && pdata->keypad) { pdev = platform_device_alloc("twl4030_keypad", -1); if (pdev) { - twl = &twl4030_modules[TWL4030_SLAVENUM_NUM2]; + twl = &twl4030_modules[2]; pdev->dev.parent = &twl->client->dev; device_init_wakeup(&pdev->dev, 1); status = platform_device_add_data(pdev, pdata->keypad, @@ -817,7 +831,7 @@ static int add_children(struct twl4030_platform_data *pdata) if (twl_has_madc() && pdata->madc) { pdev = platform_device_alloc("twl4030_madc", -1); if (pdev) { - twl = &twl4030_modules[TWL4030_SLAVENUM_NUM2]; + twl = &twl4030_modules[2]; pdev->dev.parent = &twl->client->dev; device_init_wakeup(&pdev->dev, 1); status = platform_device_add_data(pdev, pdata->madc, @@ -845,7 +859,7 @@ static int add_children(struct twl4030_platform_data *pdata) } if (twl_has_rtc()) { - twl = &twl4030_modules[TWL4030_SLAVENUM_NUM3]; + twl = &twl4030_modules[3]; pdev = platform_device_alloc("twl4030_rtc", -1); if (!pdev) { @@ -888,7 +902,7 @@ static int add_children(struct twl4030_platform_data *pdata) } if (twl_has_usb() && pdata->usb) { - twl = &twl4030_modules[TWL4030_SLAVENUM_NUM0]; + twl = &twl4030_modules[0]; pdev = platform_device_alloc("twl4030_usb", -1); if (!pdev) { @@ -937,25 +951,14 @@ err: return status; } -static struct task_struct * __init start_twl4030_irq_thread(long irq) -{ - struct task_struct *thread; - - init_completion(&irq_event); - thread = kthread_run(twl4030_irq_thread, (void *)irq, - "twl4030 irq %ld", irq); - if (!thread) - pr_err("%s: could not create twl4030 irq %ld thread!\n", - DRIVER_NAME, irq); - - return thread; -} +/*----------------------------------------------------------------------*/ /* - * These three functions should be part of Voltage frame work - * added here to complete the functionality for now. + * These three functions initialize the on-chip clock framework, + * letting it generate the right frequencies for USB, MADC, and + * other purposes. */ -static int __init protect_pm_master(void) +static inline int __init protect_pm_master(void) { int e = 0; @@ -964,7 +967,7 @@ static int __init protect_pm_master(void) return e; } -static int __init unprotect_pm_master(void) +static inline int __init unprotect_pm_master(void) { int e = 0; @@ -975,7 +978,7 @@ static int __init unprotect_pm_master(void) return e; } -static int __init power_companion_init(void) +static void __init clocks_init(void) { int e = 0; struct clk *osc; @@ -988,12 +991,15 @@ static int __init power_companion_init(void) else osc = clk_get(NULL, "osc_sys_ck"); #else + /* REVISIT for non-OMAP systems, pass the clock rate from + * board init code, using platform_data. + */ osc = ERR_PTR(-EIO); #endif if (IS_ERR(osc)) { printk(KERN_WARNING "Skipping twl4030 internal clock init and " "using bootloader value (unknown osc rate)\n"); - return 0; + return; } rate = clk_get_rate(osc); @@ -1017,9 +1023,12 @@ static int __init power_companion_init(void) e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); e |= protect_pm_master(); - return e; + if (e < 0) + pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); } +/*----------------------------------------------------------------------*/ + /** * twl4030_i2c_clear_isr - clear TWL4030 SIH ISR regs via read + write * @mod_no: TWL4030 module number @@ -1098,16 +1107,12 @@ static void __init twl4030_mask_clear_intrs(const struct twl4030_mod_iregs *t, tmr.isrs[j], cor) < 0); } } - - return; } static void twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end) { int i; - int res = 0; - char *msg = "Unable to register interrupt subsystem"; /* * Mask and clear all TWL4030 interrupts since initially we do @@ -1127,12 +1132,7 @@ static void twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end) /* install an irq handler to demultiplex the TWL4030 interrupt */ set_irq_data(irq_num, start_twl4030_irq_thread(irq_num)); - set_irq_type(irq_num, IRQ_TYPE_EDGE_FALLING); set_irq_chained_handler(irq_num, do_twl4030_irq); - - res = power_companion_init(); - if (res < 0) - pr_err("%s: %s[%d]\n", DRIVER_NAME, msg, res); } /*----------------------------------------------------------------------*/ @@ -1153,8 +1153,8 @@ static int twl4030_remove(struct i2c_client *client) if (twl->client && twl->client != client) i2c_unregister_device(twl->client); twl4030_modules[i].client = NULL; - twl4030_modules[i].inuse = false; } + inuse = false; return 0; } @@ -1176,11 +1176,9 @@ twl4030_probe(struct i2c_client *client, const struct i2c_device_id *id) return -EIO; } - for (i = 0; i < TWL4030_NUM_SLAVES; i++) { - if (twl4030_modules[i].inuse || twl4030_irq_base) { - dev_dbg(&client->dev, "driver is already in use\n"); - return -EBUSY; - } + if (inuse || twl4030_irq_base) { + dev_dbg(&client->dev, "driver is already in use\n"); + return -EBUSY; } for (i = 0; i < TWL4030_NUM_SLAVES; i++) { @@ -1201,17 +1199,15 @@ twl4030_probe(struct i2c_client *client, const struct i2c_device_id *id) strlcpy(twl->client->name, id->name, sizeof(twl->client->name)); } - twl->inuse = true; mutex_init(&twl->xfer_lock); } + inuse = true; - /* - * Check if the PIH module is initialized, if yes, then init - * the T2 Interrupt subsystem - */ - if (twl4030_modules[twl4030_map[TWL4030_MODULE_PIH].sid].inuse - && twl4030_irq_base == 0 - && client->irq + /* setup clock framework */ + clocks_init(); + + /* Maybe init the T2 Interrupt subsystem */ + if (client->irq && pdata->irq_base && pdata->irq_end > pdata->irq_base) { twl_init_irq(client->irq, pdata->irq_base, pdata->irq_end); @@ -1231,6 +1227,7 @@ static const struct i2c_device_id twl4030_ids[] = { { "tps65950", 0 }, /* catalog version of twl4030 */ { "tps65930", 0 }, /* fewer LDOs and DACs; no charger */ { "tps65920", 0 }, /* fewer LDOs; no codec or charger */ + { "twl5030", 0 }, /* T2 updated */ { /* end of list */ }, }; MODULE_DEVICE_TABLE(i2c, twl4030_ids); diff --git a/include/linux/i2c/twl4030-madc.h b/include/linux/i2c/twl4030-madc.h index 822f583a7dd..24523b507e5 100644 --- a/include/linux/i2c/twl4030-madc.h +++ b/include/linux/i2c/twl4030-madc.h @@ -75,14 +75,6 @@ enum sample_type { #define TWL4030_MADC_RTCH0_LSB 0x17 #define TWL4030_MADC_GPCH0_LSB 0x37 -#define TWL4030_MADC_ISR1 0x61 -#define TWL4030_MADC_IMR1 0x62 -#define TWL4030_MADC_ISR2 0x63 -#define TWL4030_MADC_IMR2 0x64 -#define TWL4030_MADC_SIR 0x65 -#define TWL4030_MADC_EDR 0x66 -#define TWL4030_MADC_SIH_CTRL 0x67 - #define TWL4030_MADC_MADCON (1<<0) /* MADC power on */ #define TWL4030_MADC_BUSY (1<<0) /* MADC busy */ #define TWL4030_MADC_EOC_SW (1<<1) /* MADC conversion completion */ diff --git a/include/linux/i2c/twl4030.h b/include/linux/i2c/twl4030.h index e1d36d3856d..cdb453162a9 100644 --- a/include/linux/i2c/twl4030.h +++ b/include/linux/i2c/twl4030.h @@ -152,6 +152,57 @@ int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes); /*----------------------------------------------------------------------*/ +/* + * Keypad register offsets (use TWL4030_MODULE_KEYPAD) + * ... SIH/interrupt only + */ + +#define TWL4030_KEYPAD_KEYP_ISR1 0x11 +#define TWL4030_KEYPAD_KEYP_IMR1 0x12 +#define TWL4030_KEYPAD_KEYP_ISR2 0x13 +#define TWL4030_KEYPAD_KEYP_IMR2 0x14 +#define TWL4030_KEYPAD_KEYP_SIR 0x15 /* test register */ +#define TWL4030_KEYPAD_KEYP_EDR 0x16 +#define TWL4030_KEYPAD_KEYP_SIH_CTRL 0x17 + +/*----------------------------------------------------------------------*/ + +/* + * Multichannel ADC register offsets (use TWL4030_MODULE_MADC) + * ... SIH/interrupt only + */ + +#define TWL4030_MADC_ISR1 0x61 +#define TWL4030_MADC_IMR1 0x62 +#define TWL4030_MADC_ISR2 0x63 +#define TWL4030_MADC_IMR2 0x64 +#define TWL4030_MADC_SIR 0x65 /* test register */ +#define TWL4030_MADC_EDR 0x66 +#define TWL4030_MADC_SIH_CTRL 0x67 + +/*----------------------------------------------------------------------*/ + +/* + * Battery charger register offsets (use TWL4030_MODULE_INTERRUPTS) + */ + +#define TWL4030_INTERRUPTS_BCIISR1A 0x0 +#define TWL4030_INTERRUPTS_BCIISR2A 0x1 +#define TWL4030_INTERRUPTS_BCIIMR1A 0x2 +#define TWL4030_INTERRUPTS_BCIIMR2A 0x3 +#define TWL4030_INTERRUPTS_BCIISR1B 0x4 +#define TWL4030_INTERRUPTS_BCIISR2B 0x5 +#define TWL4030_INTERRUPTS_BCIIMR1B 0x6 +#define TWL4030_INTERRUPTS_BCIIMR2B 0x7 +#define TWL4030_INTERRUPTS_BCISIR1 0x8 /* test register */ +#define TWL4030_INTERRUPTS_BCISIR2 0x9 /* test register */ +#define TWL4030_INTERRUPTS_BCIEDR1 0xa +#define TWL4030_INTERRUPTS_BCIEDR2 0xb +#define TWL4030_INTERRUPTS_BCIEDR3 0xc +#define TWL4030_INTERRUPTS_BCISIHCTRL 0xd + +/*----------------------------------------------------------------------*/ + /* * Power Interrupt block register offsets (use TWL4030_MODULE_INT) */ -- 2.41.1