forked from mirrors/linux
		
	clocksource/drivers/timer-ti-dm: Move struct omap_dm_timer fields to driver
There is no longer any need to expose the elements of struct omap_dm_timer outside the driver. The pwm and remoteproc drivers just use struct omap_dm_timer as a cookie. Let's move the elements of struct omap_dm_timer into struct dmtimer that is private to the driver. To do this, we mostly rename omap_dm_timer to dmtimer in the driver. We keep omap_dm_timer only for the exposed functions in the platform_data for the pwm and remoteproc drivers. Let's also add a note about not using the exposed functions internally as those will get deprecated eventually in favor of Linux generic frameworks. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Link: https://lore.kernel.org/r/20220815131250.34603-8-tony@atomide.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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					 2 changed files with 170 additions and 91 deletions
				
			
		|  | @ -95,6 +95,53 @@ | |||
| #define OMAP_TIMER_TICK_INT_MASK_COUNT_REG				\ | ||||
| 		(_OMAP_TIMER_TICK_INT_MASK_COUNT_OFFSET | (WP_TOWR << WPSHIFT)) | ||||
| 
 | ||||
| struct timer_regs { | ||||
| 	u32 ocp_cfg; | ||||
| 	u32 tidr; | ||||
| 	u32 tier; | ||||
| 	u32 twer; | ||||
| 	u32 tclr; | ||||
| 	u32 tcrr; | ||||
| 	u32 tldr; | ||||
| 	u32 ttrg; | ||||
| 	u32 twps; | ||||
| 	u32 tmar; | ||||
| 	u32 tcar1; | ||||
| 	u32 tsicr; | ||||
| 	u32 tcar2; | ||||
| 	u32 tpir; | ||||
| 	u32 tnir; | ||||
| 	u32 tcvr; | ||||
| 	u32 tocr; | ||||
| 	u32 towr; | ||||
| }; | ||||
| 
 | ||||
| struct dmtimer { | ||||
| 	struct omap_dm_timer cookie; | ||||
| 	int id; | ||||
| 	int irq; | ||||
| 	struct clk *fclk; | ||||
| 
 | ||||
| 	void __iomem	*io_base; | ||||
| 	int		irq_stat;	/* TISR/IRQSTATUS interrupt status */ | ||||
| 	int		irq_ena;	/* irq enable */ | ||||
| 	int		irq_dis;	/* irq disable, only on v2 ip */ | ||||
| 	void __iomem	*pend;		/* write pending */ | ||||
| 	void __iomem	*func_base;	/* function register base */ | ||||
| 
 | ||||
| 	atomic_t enabled; | ||||
| 	unsigned long rate; | ||||
| 	unsigned reserved:1; | ||||
| 	unsigned posted:1; | ||||
| 	struct timer_regs context; | ||||
| 	int revision; | ||||
| 	u32 capability; | ||||
| 	u32 errata; | ||||
| 	struct platform_device *pdev; | ||||
| 	struct list_head node; | ||||
| 	struct notifier_block nb; | ||||
| }; | ||||
| 
 | ||||
| static u32 omap_reserved_systimers; | ||||
| static LIST_HEAD(omap_timer_list); | ||||
| static DEFINE_SPINLOCK(dm_timer_lock); | ||||
|  | @ -115,7 +162,7 @@ enum { | |||
|  * pending bit must be checked. Otherwise a read of a non completed write | ||||
|  * will produce an error. | ||||
|  */ | ||||
| static inline u32 dmtimer_read(struct omap_dm_timer *timer, u32 reg) | ||||
| static inline u32 dmtimer_read(struct dmtimer *timer, u32 reg) | ||||
| { | ||||
| 	u16 wp, offset; | ||||
| 
 | ||||
|  | @ -140,7 +187,7 @@ static inline u32 dmtimer_read(struct omap_dm_timer *timer, u32 reg) | |||
|  * pending bit must be checked. Otherwise a write on a register which has a | ||||
|  * pending write will be lost. | ||||
|  */ | ||||
| static inline void dmtimer_write(struct omap_dm_timer *timer, u32 reg, u32 val) | ||||
| static inline void dmtimer_write(struct dmtimer *timer, u32 reg, u32 val) | ||||
| { | ||||
| 	u16 wp, offset; | ||||
| 
 | ||||
|  | @ -155,7 +202,7 @@ static inline void dmtimer_write(struct omap_dm_timer *timer, u32 reg, u32 val) | |||
| 	writel_relaxed(val, timer->func_base + offset); | ||||
| } | ||||
| 
 | ||||
| static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer) | ||||
| static inline void __omap_dm_timer_init_regs(struct dmtimer *timer) | ||||
| { | ||||
| 	u32 tidr; | ||||
| 
 | ||||
|  | @ -190,7 +237,7 @@ static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer) | |||
|  * complete. Enabling this feature can improve performance for writing to the | ||||
|  * timer registers. | ||||
|  */ | ||||
| static inline void __omap_dm_timer_enable_posted(struct omap_dm_timer *timer) | ||||
| static inline void __omap_dm_timer_enable_posted(struct dmtimer *timer) | ||||
| { | ||||
| 	if (timer->posted) | ||||
| 		return; | ||||
|  | @ -206,7 +253,7 @@ static inline void __omap_dm_timer_enable_posted(struct omap_dm_timer *timer) | |||
| 	timer->posted = OMAP_TIMER_POSTED; | ||||
| } | ||||
| 
 | ||||
| static inline void __omap_dm_timer_stop(struct omap_dm_timer *timer, | ||||
| static inline void __omap_dm_timer_stop(struct dmtimer *timer, | ||||
| 					unsigned long rate) | ||||
| { | ||||
| 	u32 l; | ||||
|  | @ -230,26 +277,26 @@ static inline void __omap_dm_timer_stop(struct omap_dm_timer *timer, | |||
| 	dmtimer_write(timer, timer->irq_stat, OMAP_TIMER_INT_OVERFLOW); | ||||
| } | ||||
| 
 | ||||
| static inline void __omap_dm_timer_int_enable(struct omap_dm_timer *timer, | ||||
| 						unsigned int value) | ||||
| static inline void __omap_dm_timer_int_enable(struct dmtimer *timer, | ||||
| 					      unsigned int value) | ||||
| { | ||||
| 	dmtimer_write(timer, timer->irq_ena, value); | ||||
| 	dmtimer_write(timer, OMAP_TIMER_WAKEUP_EN_REG, value); | ||||
| } | ||||
| 
 | ||||
| static inline unsigned int | ||||
| __omap_dm_timer_read_counter(struct omap_dm_timer *timer) | ||||
| __omap_dm_timer_read_counter(struct dmtimer *timer) | ||||
| { | ||||
| 	return dmtimer_read(timer, OMAP_TIMER_COUNTER_REG); | ||||
| } | ||||
| 
 | ||||
| static inline void __omap_dm_timer_write_status(struct omap_dm_timer *timer, | ||||
| static inline void __omap_dm_timer_write_status(struct dmtimer *timer, | ||||
| 						unsigned int value) | ||||
| { | ||||
| 	dmtimer_write(timer, timer->irq_stat, value); | ||||
| } | ||||
| 
 | ||||
| static void omap_timer_restore_context(struct omap_dm_timer *timer) | ||||
| static void omap_timer_restore_context(struct dmtimer *timer) | ||||
| { | ||||
| 	dmtimer_write(timer, OMAP_TIMER_OCP_CFG_OFFSET, timer->context.ocp_cfg); | ||||
| 
 | ||||
|  | @ -262,7 +309,7 @@ static void omap_timer_restore_context(struct omap_dm_timer *timer) | |||
| 	dmtimer_write(timer, OMAP_TIMER_CTRL_REG, timer->context.tclr); | ||||
| } | ||||
| 
 | ||||
| static void omap_timer_save_context(struct omap_dm_timer *timer) | ||||
| static void omap_timer_save_context(struct dmtimer *timer) | ||||
| { | ||||
| 	timer->context.ocp_cfg = dmtimer_read(timer, OMAP_TIMER_OCP_CFG_OFFSET); | ||||
| 
 | ||||
|  | @ -277,9 +324,9 @@ static void omap_timer_save_context(struct omap_dm_timer *timer) | |||
| static int omap_timer_context_notifier(struct notifier_block *nb, | ||||
| 				       unsigned long cmd, void *v) | ||||
| { | ||||
| 	struct omap_dm_timer *timer; | ||||
| 	struct dmtimer *timer; | ||||
| 
 | ||||
| 	timer = container_of(nb, struct omap_dm_timer, nb); | ||||
| 	timer = container_of(nb, struct dmtimer, nb); | ||||
| 
 | ||||
| 	switch (cmd) { | ||||
| 	case CPU_CLUSTER_PM_ENTER: | ||||
|  | @ -301,7 +348,7 @@ static int omap_timer_context_notifier(struct notifier_block *nb, | |||
| 	return NOTIFY_OK; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_reset(struct omap_dm_timer *timer) | ||||
| static int omap_dm_timer_reset(struct dmtimer *timer) | ||||
| { | ||||
| 	u32 l, timeout = 100000; | ||||
| 
 | ||||
|  | @ -329,13 +376,29 @@ static int omap_dm_timer_reset(struct omap_dm_timer *timer) | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source) | ||||
| /*
 | ||||
|  * Functions exposed to PWM and remoteproc drivers via platform_data. | ||||
|  * Do not use these in the driver, these will get deprecated and will | ||||
|  * will be replaced by Linux generic framework functions such as | ||||
|  * chained interrupts and clock framework. | ||||
|  */ | ||||
| static struct dmtimer *to_dmtimer(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	if (!cookie) | ||||
| 		return NULL; | ||||
| 
 | ||||
| 	return container_of(cookie, struct dmtimer, cookie); | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_set_source(struct omap_dm_timer *cookie, int source) | ||||
| { | ||||
| 	int ret; | ||||
| 	const char *parent_name; | ||||
| 	struct clk *parent; | ||||
| 	struct dmtimer_platform_data *pdata; | ||||
| 	struct dmtimer *timer; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer) || IS_ERR(timer->fclk)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -385,8 +448,9 @@ static int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source) | |||
| 	return ret; | ||||
| } | ||||
| 
 | ||||
| static void omap_dm_timer_enable(struct omap_dm_timer *timer) | ||||
| static void omap_dm_timer_enable(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct dmtimer *timer = to_dmtimer(cookie); | ||||
| 	struct device *dev = &timer->pdev->dev; | ||||
| 	int rc; | ||||
| 
 | ||||
|  | @ -395,14 +459,15 @@ static void omap_dm_timer_enable(struct omap_dm_timer *timer) | |||
| 		dev_err(dev, "could not enable timer\n"); | ||||
| } | ||||
| 
 | ||||
| static void omap_dm_timer_disable(struct omap_dm_timer *timer) | ||||
| static void omap_dm_timer_disable(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct dmtimer *timer = to_dmtimer(cookie); | ||||
| 	struct device *dev = &timer->pdev->dev; | ||||
| 
 | ||||
| 	pm_runtime_put_sync(dev); | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_prepare(struct omap_dm_timer *timer) | ||||
| static int omap_dm_timer_prepare(struct dmtimer *timer) | ||||
| { | ||||
| 	struct device *dev = &timer->pdev->dev; | ||||
| 	int rc; | ||||
|  | @ -442,9 +507,9 @@ static inline u32 omap_dm_timer_reserved_systimer(int id) | |||
| 	return (omap_reserved_systimers & (1 << (id - 1))) ? 1 : 0; | ||||
| } | ||||
| 
 | ||||
| static struct omap_dm_timer *_omap_dm_timer_request(int req_type, void *data) | ||||
| static struct dmtimer *_omap_dm_timer_request(int req_type, void *data) | ||||
| { | ||||
| 	struct omap_dm_timer *timer = NULL, *t; | ||||
| 	struct dmtimer *timer = NULL, *t; | ||||
| 	struct device_node *np = NULL; | ||||
| 	unsigned long flags; | ||||
| 	u32 cap = 0; | ||||
|  | @ -528,11 +593,19 @@ static struct omap_dm_timer *_omap_dm_timer_request(int req_type, void *data) | |||
| 
 | ||||
| static struct omap_dm_timer *omap_dm_timer_request(void) | ||||
| { | ||||
| 	return _omap_dm_timer_request(REQUEST_ANY, NULL); | ||||
| 	struct dmtimer *timer; | ||||
| 
 | ||||
| 	timer = _omap_dm_timer_request(REQUEST_ANY, NULL); | ||||
| 	if (!timer) | ||||
| 		return NULL; | ||||
| 
 | ||||
| 	return &timer->cookie; | ||||
| } | ||||
| 
 | ||||
| static struct omap_dm_timer *omap_dm_timer_request_specific(int id) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 
 | ||||
| 	/* Requesting timer by ID is not supported when device tree is used */ | ||||
| 	if (of_have_populated_dt()) { | ||||
| 		pr_warn("%s: Please use omap_dm_timer_request_by_node()\n", | ||||
|  | @ -540,7 +613,11 @@ static struct omap_dm_timer *omap_dm_timer_request_specific(int id) | |||
| 		return NULL; | ||||
| 	} | ||||
| 
 | ||||
| 	return _omap_dm_timer_request(REQUEST_BY_ID, &id); | ||||
| 	timer = _omap_dm_timer_request(REQUEST_BY_ID, &id); | ||||
| 	if (!timer) | ||||
| 		return NULL; | ||||
| 
 | ||||
| 	return &timer->cookie; | ||||
| } | ||||
| 
 | ||||
| /**
 | ||||
|  | @ -552,14 +629,23 @@ static struct omap_dm_timer *omap_dm_timer_request_specific(int id) | |||
|  */ | ||||
| static struct omap_dm_timer *omap_dm_timer_request_by_node(struct device_node *np) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 
 | ||||
| 	if (!np) | ||||
| 		return NULL; | ||||
| 
 | ||||
| 	return _omap_dm_timer_request(REQUEST_BY_NODE, np); | ||||
| 	timer = _omap_dm_timer_request(REQUEST_BY_NODE, np); | ||||
| 	if (!timer) | ||||
| 		return NULL; | ||||
| 
 | ||||
| 	return &timer->cookie; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_free(struct omap_dm_timer *timer) | ||||
| static int omap_dm_timer_free(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -570,8 +656,9 @@ static int omap_dm_timer_free(struct omap_dm_timer *timer) | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| int omap_dm_timer_get_irq(struct omap_dm_timer *timer) | ||||
| int omap_dm_timer_get_irq(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct dmtimer *timer = to_dmtimer(cookie); | ||||
| 	if (timer) | ||||
| 		return timer->irq; | ||||
| 	return -EINVAL; | ||||
|  | @ -580,7 +667,7 @@ int omap_dm_timer_get_irq(struct omap_dm_timer *timer) | |||
| #if defined(CONFIG_ARCH_OMAP1) | ||||
| #include <linux/soc/ti/omap1-io.h> | ||||
| 
 | ||||
| static struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer) | ||||
| static struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	return NULL; | ||||
| } | ||||
|  | @ -592,7 +679,7 @@ static struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer) | |||
| __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask) | ||||
| { | ||||
| 	int i = 0; | ||||
| 	struct omap_dm_timer *timer = NULL; | ||||
| 	struct dmtimer *timer = NULL; | ||||
| 	unsigned long flags; | ||||
| 
 | ||||
| 	/* If ARMXOR cannot be idled this function call is unnecessary */ | ||||
|  | @ -620,8 +707,10 @@ __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask) | |||
| 
 | ||||
| #else | ||||
| 
 | ||||
| static struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer) | ||||
| static struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct dmtimer *timer = to_dmtimer(cookie); | ||||
| 
 | ||||
| 	if (timer && !IS_ERR(timer->fclk)) | ||||
| 		return timer->fclk; | ||||
| 	return NULL; | ||||
|  | @ -636,15 +725,19 @@ __u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask) | |||
| 
 | ||||
| #endif | ||||
| 
 | ||||
| static int omap_dm_timer_start(struct omap_dm_timer *timer) | ||||
| static int omap_dm_timer_start(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct device *dev = &timer->pdev->dev; | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev; | ||||
| 	int rc; | ||||
| 	u32 l; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
| 	dev = &timer->pdev->dev; | ||||
| 
 | ||||
| 	rc = pm_runtime_resume_and_get(dev); | ||||
| 	if (rc) | ||||
| 		return rc; | ||||
|  | @ -658,14 +751,18 @@ static int omap_dm_timer_start(struct omap_dm_timer *timer) | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_stop(struct omap_dm_timer *timer) | ||||
| static int omap_dm_timer_stop(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct device *dev = &timer->pdev->dev; | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev; | ||||
| 	unsigned long rate = 0; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
| 	dev = &timer->pdev->dev; | ||||
| 
 | ||||
| 	if (!(timer->capability & OMAP_TIMER_NEEDS_RESET)) | ||||
| 		rate = clk_get_rate(timer->fclk); | ||||
| 
 | ||||
|  | @ -676,12 +773,14 @@ static int omap_dm_timer_stop(struct omap_dm_timer *timer) | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_set_load(struct omap_dm_timer *timer, | ||||
| static int omap_dm_timer_set_load(struct omap_dm_timer *cookie, | ||||
| 				  unsigned int load) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev; | ||||
| 	int rc; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -697,13 +796,15 @@ static int omap_dm_timer_set_load(struct omap_dm_timer *timer, | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable, | ||||
| static int omap_dm_timer_set_match(struct omap_dm_timer *cookie, int enable, | ||||
| 				   unsigned int match) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev; | ||||
| 	int rc; | ||||
| 	u32 l; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -725,13 +826,15 @@ static int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable, | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, | ||||
| static int omap_dm_timer_set_pwm(struct omap_dm_timer *cookie, int def_on, | ||||
| 				 int toggle, int trigger, int autoreload) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev; | ||||
| 	int rc; | ||||
| 	u32 l; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -757,12 +860,14 @@ static int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_get_pwm_status(struct omap_dm_timer *timer) | ||||
| static int omap_dm_timer_get_pwm_status(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev; | ||||
| 	int rc; | ||||
| 	u32 l; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -778,13 +883,15 @@ static int omap_dm_timer_get_pwm_status(struct omap_dm_timer *timer) | |||
| 	return l; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, | ||||
| 					int prescaler) | ||||
| static int omap_dm_timer_set_prescaler(struct omap_dm_timer *cookie, | ||||
| 				       int prescaler) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev; | ||||
| 	int rc; | ||||
| 	u32 l; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer) || prescaler < -1 || prescaler > 7) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -806,12 +913,14 @@ static int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer, | ||||
| static int omap_dm_timer_set_int_enable(struct omap_dm_timer *cookie, | ||||
| 					unsigned int value) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev; | ||||
| 	int rc; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -834,12 +943,14 @@ static int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer, | |||
|  * | ||||
|  * Disables the specified timer interrupts for a timer. | ||||
|  */ | ||||
| static int omap_dm_timer_set_int_disable(struct omap_dm_timer *timer, u32 mask) | ||||
| static int omap_dm_timer_set_int_disable(struct omap_dm_timer *cookie, u32 mask) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev; | ||||
| 	u32 l = mask; | ||||
| 	int rc; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer)) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -860,10 +971,12 @@ static int omap_dm_timer_set_int_disable(struct omap_dm_timer *timer, u32 mask) | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer) | ||||
| static unsigned int omap_dm_timer_read_status(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 	unsigned int l; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer || !atomic_read(&timer->enabled))) { | ||||
| 		pr_err("%s: timer not available or enabled.\n", __func__); | ||||
| 		return 0; | ||||
|  | @ -874,8 +987,11 @@ static unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer) | |||
| 	return l; | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value) | ||||
| static int omap_dm_timer_write_status(struct omap_dm_timer *cookie, unsigned int value) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer || !atomic_read(&timer->enabled))) | ||||
| 		return -EINVAL; | ||||
| 
 | ||||
|  | @ -884,8 +1000,11 @@ static int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer) | ||||
| static unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *cookie) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer || !atomic_read(&timer->enabled))) { | ||||
| 		pr_err("%s: timer not iavailable or enabled.\n", __func__); | ||||
| 		return 0; | ||||
|  | @ -894,8 +1013,11 @@ static unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer) | |||
| 	return __omap_dm_timer_read_counter(timer); | ||||
| } | ||||
| 
 | ||||
| static int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value) | ||||
| static int omap_dm_timer_write_counter(struct omap_dm_timer *cookie, unsigned int value) | ||||
| { | ||||
| 	struct dmtimer *timer; | ||||
| 
 | ||||
| 	timer = to_dmtimer(cookie); | ||||
| 	if (unlikely(!timer || !atomic_read(&timer->enabled))) { | ||||
| 		pr_err("%s: timer not available or enabled.\n", __func__); | ||||
| 		return -EINVAL; | ||||
|  | @ -910,7 +1032,7 @@ static int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int | |||
| 
 | ||||
| static int __maybe_unused omap_dm_timer_runtime_suspend(struct device *dev) | ||||
| { | ||||
| 	struct omap_dm_timer *timer = dev_get_drvdata(dev); | ||||
| 	struct dmtimer *timer = dev_get_drvdata(dev); | ||||
| 
 | ||||
| 	atomic_set(&timer->enabled, 0); | ||||
| 
 | ||||
|  | @ -924,7 +1046,7 @@ static int __maybe_unused omap_dm_timer_runtime_suspend(struct device *dev) | |||
| 
 | ||||
| static int __maybe_unused omap_dm_timer_runtime_resume(struct device *dev) | ||||
| { | ||||
| 	struct omap_dm_timer *timer = dev_get_drvdata(dev); | ||||
| 	struct dmtimer *timer = dev_get_drvdata(dev); | ||||
| 
 | ||||
| 	if (!(timer->capability & OMAP_TIMER_ALWON) && timer->func_base) | ||||
| 		omap_timer_restore_context(timer); | ||||
|  | @ -951,7 +1073,7 @@ static const struct of_device_id omap_timer_match[]; | |||
| static int omap_dm_timer_probe(struct platform_device *pdev) | ||||
| { | ||||
| 	unsigned long flags; | ||||
| 	struct omap_dm_timer *timer; | ||||
| 	struct dmtimer *timer; | ||||
| 	struct device *dev = &pdev->dev; | ||||
| 	const struct dmtimer_platform_data *pdata; | ||||
| 	int ret; | ||||
|  | @ -1043,7 +1165,7 @@ static int omap_dm_timer_probe(struct platform_device *pdev) | |||
|  */ | ||||
| static int omap_dm_timer_remove(struct platform_device *pdev) | ||||
| { | ||||
| 	struct omap_dm_timer *timer; | ||||
| 	struct dmtimer *timer; | ||||
| 	unsigned long flags; | ||||
| 	int ret = -EINVAL; | ||||
| 
 | ||||
|  |  | |||
|  | @ -59,50 +59,7 @@ | |||
| #define OMAP_TIMER_NEEDS_RESET				0x10000000 | ||||
| #define OMAP_TIMER_HAS_DSP_IRQ				0x08000000 | ||||
| 
 | ||||
| struct timer_regs { | ||||
| 	u32 ocp_cfg; | ||||
| 	u32 tidr; | ||||
| 	u32 tier; | ||||
| 	u32 twer; | ||||
| 	u32 tclr; | ||||
| 	u32 tcrr; | ||||
| 	u32 tldr; | ||||
| 	u32 ttrg; | ||||
| 	u32 twps; | ||||
| 	u32 tmar; | ||||
| 	u32 tcar1; | ||||
| 	u32 tsicr; | ||||
| 	u32 tcar2; | ||||
| 	u32 tpir; | ||||
| 	u32 tnir; | ||||
| 	u32 tcvr; | ||||
| 	u32 tocr; | ||||
| 	u32 towr; | ||||
| }; | ||||
| 
 | ||||
| struct omap_dm_timer { | ||||
| 	int id; | ||||
| 	int irq; | ||||
| 	struct clk *fclk; | ||||
| 
 | ||||
| 	void __iomem	*io_base; | ||||
| 	int		irq_stat;	/* TISR/IRQSTATUS interrupt status */ | ||||
| 	int		irq_ena;	/* irq enable */ | ||||
| 	int		irq_dis;	/* irq disable, only on v2 ip */ | ||||
| 	void __iomem	*pend;		/* write pending */ | ||||
| 	void __iomem	*func_base;	/* function register base */ | ||||
| 
 | ||||
| 	atomic_t enabled; | ||||
| 	unsigned long rate; | ||||
| 	unsigned reserved:1; | ||||
| 	unsigned posted:1; | ||||
| 	struct timer_regs context; | ||||
| 	int revision; | ||||
| 	u32 capability; | ||||
| 	u32 errata; | ||||
| 	struct platform_device *pdev; | ||||
| 	struct list_head node; | ||||
| 	struct notifier_block nb; | ||||
| }; | ||||
| 
 | ||||
| int omap_dm_timer_get_irq(struct omap_dm_timer *timer); | ||||
|  |  | |||
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		Reference in a new issue
	
	 Tony Lindgren
						Tony Lindgren