* [PATCH 1/7] arm: zynq: timer: Replace PSS through PS [not found] <1355876199-23788-1-git-send-email-soren.brinkmann@xilinx.com> @ 2012-12-19 0:16 ` Soren Brinkmann 2012-12-19 2:31 ` Josh Cartwright 2012-12-19 0:16 ` [PATCH 2/7] arm: zynq: timer: Remove unnecessary register write Soren Brinkmann ` (5 subsequent siblings) 6 siblings, 1 reply; 9+ messages in thread From: Soren Brinkmann @ 2012-12-19 0:16 UTC (permalink / raw) To: linux-kernel, Michal Simek, monstr, John Linn Cc: git, josh.cartwright, Soren Brinkmann The acronym PSS is deprecated by Xilinx. The correct term, which is also used in Xilinx documentation is PS (processing system). This is just a search and replace: - s/PSS/PS/g - s/pss/ps/g Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> --- arch/arm/mach-zynq/common.c | 6 +- arch/arm/mach-zynq/common.h | 2 +- arch/arm/mach-zynq/timer.c | 134 ++++++++++++++++++++++---------------------- 3 files changed, 71 insertions(+), 71 deletions(-) diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c index e16d4be..892f65e 100644 --- a/arch/arm/mach-zynq/common.c +++ b/arch/arm/mach-zynq/common.c @@ -90,13 +90,13 @@ static void __init xilinx_zynq_timer_init(void) xilinx_zynq_clocks_init(slcr); - xttcpss_timer_init(); + xttcps_timer_init(); } /* * Instantiate and initialize the system timer structure */ -static struct sys_timer xttcpss_sys_timer = { +static struct sys_timer xttcps_sys_timer = { .init = xilinx_zynq_timer_init, }; @@ -120,6 +120,6 @@ MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform") .init_irq = xilinx_irq_init, .handle_irq = gic_handle_irq, .init_machine = xilinx_init_machine, - .timer = &xttcpss_sys_timer, + .timer = &xttcps_sys_timer, .dt_compat = xilinx_dt_match, MACHINE_END diff --git a/arch/arm/mach-zynq/common.h b/arch/arm/mach-zynq/common.h index 954b91c..8b4dbba 100644 --- a/arch/arm/mach-zynq/common.h +++ b/arch/arm/mach-zynq/common.h @@ -17,6 +17,6 @@ #ifndef __MACH_ZYNQ_COMMON_H__ #define __MACH_ZYNQ_COMMON_H__ -void __init xttcpss_timer_init(void); +void __init xttcps_timer_init(void); #endif diff --git a/arch/arm/mach-zynq/timer.c b/arch/arm/mach-zynq/timer.c index de3df28..570491d 100644 --- a/arch/arm/mach-zynq/timer.c +++ b/arch/arm/mach-zynq/timer.c @@ -35,17 +35,17 @@ * Timer Register Offset Definitions of Timer 1, Increment base address by 4 * and use same offsets for Timer 2 */ -#define XTTCPSS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */ -#define XTTCPSS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */ -#define XTTCPSS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */ -#define XTTCPSS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */ -#define XTTCPSS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */ -#define XTTCPSS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */ -#define XTTCPSS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */ -#define XTTCPSS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */ -#define XTTCPSS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */ - -#define XTTCPSS_CNT_CNTRL_DISABLE_MASK 0x1 +#define XTTCPS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */ +#define XTTCPS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */ +#define XTTCPS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */ +#define XTTCPS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */ +#define XTTCPS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */ +#define XTTCPS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */ +#define XTTCPS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */ +#define XTTCPS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */ +#define XTTCPS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */ + +#define XTTCPS_CNT_CNTRL_DISABLE_MASK 0x1 /* Setup the timers to use pre-scaling, using a fixed value for now that will * work across most input frequency, but it may need to be more dynamic @@ -57,72 +57,72 @@ #define CNT_CNTRL_RESET (1<<4) /** - * struct xttcpss_timer - This definition defines local timer structure + * struct xttcps_timer - This definition defines local timer structure * * @base_addr: Base address of timer **/ -struct xttcpss_timer { +struct xttcps_timer { void __iomem *base_addr; }; -struct xttcpss_timer_clocksource { - struct xttcpss_timer xttc; +struct xttcps_timer_clocksource { + struct xttcps_timer xttc; struct clocksource cs; }; -#define to_xttcpss_timer_clksrc(x) \ - container_of(x, struct xttcpss_timer_clocksource, cs) +#define to_xttcps_timer_clksrc(x) \ + container_of(x, struct xttcps_timer_clocksource, cs) -struct xttcpss_timer_clockevent { - struct xttcpss_timer xttc; +struct xttcps_timer_clockevent { + struct xttcps_timer xttc; struct clock_event_device ce; struct clk *clk; }; -#define to_xttcpss_timer_clkevent(x) \ - container_of(x, struct xttcpss_timer_clockevent, ce) +#define to_xttcps_timer_clkevent(x) \ + container_of(x, struct xttcps_timer_clockevent, ce) /** - * xttcpss_set_interval - Set the timer interval value + * xttcps_set_interval - Set the timer interval value * * @timer: Pointer to the timer instance * @cycles: Timer interval ticks **/ -static void xttcpss_set_interval(struct xttcpss_timer *timer, +static void xttcps_set_interval(struct xttcps_timer *timer, unsigned long cycles) { u32 ctrl_reg; /* Disable the counter, set the counter value and re-enable counter */ - ctrl_reg = __raw_readl(timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET); - ctrl_reg |= XTTCPSS_CNT_CNTRL_DISABLE_MASK; - __raw_writel(ctrl_reg, timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET); + ctrl_reg = __raw_readl(timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET); + ctrl_reg |= XTTCPS_CNT_CNTRL_DISABLE_MASK; + __raw_writel(ctrl_reg, timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET); - __raw_writel(cycles, timer->base_addr + XTTCPSS_INTR_VAL_OFFSET); + __raw_writel(cycles, timer->base_addr + XTTCPS_INTR_VAL_OFFSET); /* Reset the counter (0x10) so that it starts from 0, one-shot mode makes this needed for timing to be right. */ ctrl_reg |= CNT_CNTRL_RESET; - ctrl_reg &= ~XTTCPSS_CNT_CNTRL_DISABLE_MASK; - __raw_writel(ctrl_reg, timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET); + ctrl_reg &= ~XTTCPS_CNT_CNTRL_DISABLE_MASK; + __raw_writel(ctrl_reg, timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET); } /** - * xttcpss_clock_event_interrupt - Clock event timer interrupt handler + * xttcps_clock_event_interrupt - Clock event timer interrupt handler * * @irq: IRQ number of the Timer - * @dev_id: void pointer to the xttcpss_timer instance + * @dev_id: void pointer to the xttcps_timer instance * * returns: Always IRQ_HANDLED - success **/ -static irqreturn_t xttcpss_clock_event_interrupt(int irq, void *dev_id) +static irqreturn_t xttcps_clock_event_interrupt(int irq, void *dev_id) { - struct xttcpss_timer_clockevent *xttce = dev_id; - struct xttcpss_timer *timer = &xttce->xttc; + struct xttcps_timer_clockevent *xttce = dev_id; + struct xttcps_timer *timer = &xttce->xttc; /* Acknowledge the interrupt and call event handler */ - __raw_writel(__raw_readl(timer->base_addr + XTTCPSS_ISR_OFFSET), - timer->base_addr + XTTCPSS_ISR_OFFSET); + __raw_writel(__raw_readl(timer->base_addr + XTTCPS_ISR_OFFSET), + timer->base_addr + XTTCPS_ISR_OFFSET); xttce->ce.event_handler(&xttce->ce); @@ -136,46 +136,46 @@ static irqreturn_t xttcpss_clock_event_interrupt(int irq, void *dev_id) **/ static cycle_t __xttc_clocksource_read(struct clocksource *cs) { - struct xttcpss_timer *timer = &to_xttcpss_timer_clksrc(cs)->xttc; + struct xttcps_timer *timer = &to_xttcps_timer_clksrc(cs)->xttc; return (cycle_t)__raw_readl(timer->base_addr + - XTTCPSS_COUNT_VAL_OFFSET); + XTTCPS_COUNT_VAL_OFFSET); } /** - * xttcpss_set_next_event - Sets the time interval for next event + * xttcps_set_next_event - Sets the time interval for next event * * @cycles: Timer interval ticks * @evt: Address of clock event instance * * returns: Always 0 - success **/ -static int xttcpss_set_next_event(unsigned long cycles, +static int xttcps_set_next_event(unsigned long cycles, struct clock_event_device *evt) { - struct xttcpss_timer_clockevent *xttce = to_xttcpss_timer_clkevent(evt); - struct xttcpss_timer *timer = &xttce->xttc; + struct xttcps_timer_clockevent *xttce = to_xttcps_timer_clkevent(evt); + struct xttcps_timer *timer = &xttce->xttc; - xttcpss_set_interval(timer, cycles); + xttcps_set_interval(timer, cycles); return 0; } /** - * xttcpss_set_mode - Sets the mode of timer + * xttcps_set_mode - Sets the mode of timer * * @mode: Mode to be set * @evt: Address of clock event instance **/ -static void xttcpss_set_mode(enum clock_event_mode mode, +static void xttcps_set_mode(enum clock_event_mode mode, struct clock_event_device *evt) { - struct xttcpss_timer_clockevent *xttce = to_xttcpss_timer_clkevent(evt); - struct xttcpss_timer *timer = &xttce->xttc; + struct xttcps_timer_clockevent *xttce = to_xttcps_timer_clkevent(evt); + struct xttcps_timer *timer = &xttce->xttc; u32 ctrl_reg; switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - xttcpss_set_interval(timer, + xttcps_set_interval(timer, DIV_ROUND_CLOSEST(clk_get_rate(xttce->clk), PRESCALE * HZ)); break; @@ -183,17 +183,17 @@ static void xttcpss_set_mode(enum clock_event_mode mode, case CLOCK_EVT_MODE_UNUSED: case CLOCK_EVT_MODE_SHUTDOWN: ctrl_reg = __raw_readl(timer->base_addr + - XTTCPSS_CNT_CNTRL_OFFSET); - ctrl_reg |= XTTCPSS_CNT_CNTRL_DISABLE_MASK; + XTTCPS_CNT_CNTRL_OFFSET); + ctrl_reg |= XTTCPS_CNT_CNTRL_DISABLE_MASK; __raw_writel(ctrl_reg, - timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET); + timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET); break; case CLOCK_EVT_MODE_RESUME: ctrl_reg = __raw_readl(timer->base_addr + - XTTCPSS_CNT_CNTRL_OFFSET); - ctrl_reg &= ~XTTCPSS_CNT_CNTRL_DISABLE_MASK; + XTTCPS_CNT_CNTRL_OFFSET); + ctrl_reg &= ~XTTCPS_CNT_CNTRL_DISABLE_MASK; __raw_writel(ctrl_reg, - timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET); + timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET); break; } } @@ -201,7 +201,7 @@ static void xttcpss_set_mode(enum clock_event_mode mode, static void __init zynq_ttc_setup_clocksource(struct device_node *np, void __iomem *base) { - struct xttcpss_timer_clocksource *ttccs; + struct xttcps_timer_clocksource *ttccs; struct clk *clk; int err; u32 reg; @@ -230,11 +230,11 @@ static void __init zynq_ttc_setup_clocksource(struct device_node *np, ttccs->cs.mask = CLOCKSOURCE_MASK(16); ttccs->cs.flags = CLOCK_SOURCE_IS_CONTINUOUS; - __raw_writel(0x0, ttccs->xttc.base_addr + XTTCPSS_IER_OFFSET); + __raw_writel(0x0, ttccs->xttc.base_addr + XTTCPS_IER_OFFSET); __raw_writel(CLK_CNTRL_PRESCALE | CLK_CNTRL_PRESCALE_EN, - ttccs->xttc.base_addr + XTTCPSS_CLK_CNTRL_OFFSET); + ttccs->xttc.base_addr + XTTCPS_CLK_CNTRL_OFFSET); __raw_writel(CNT_CNTRL_RESET, - ttccs->xttc.base_addr + XTTCPSS_CNT_CNTRL_OFFSET); + ttccs->xttc.base_addr + XTTCPS_CNT_CNTRL_OFFSET); err = clocksource_register_hz(&ttccs->cs, clk_get_rate(clk) / PRESCALE); if (WARN_ON(err)) @@ -244,7 +244,7 @@ static void __init zynq_ttc_setup_clocksource(struct device_node *np, static void __init zynq_ttc_setup_clockevent(struct device_node *np, void __iomem *base) { - struct xttcpss_timer_clockevent *ttcce; + struct xttcps_timer_clockevent *ttcce; int err, irq; u32 reg; @@ -272,17 +272,17 @@ static void __init zynq_ttc_setup_clockevent(struct device_node *np, ttcce->ce.name = np->name; ttcce->ce.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; - ttcce->ce.set_next_event = xttcpss_set_next_event; - ttcce->ce.set_mode = xttcpss_set_mode; + ttcce->ce.set_next_event = xttcps_set_next_event; + ttcce->ce.set_mode = xttcps_set_mode; ttcce->ce.rating = 200; ttcce->ce.irq = irq; - __raw_writel(0x23, ttcce->xttc.base_addr + XTTCPSS_CNT_CNTRL_OFFSET); + __raw_writel(0x23, ttcce->xttc.base_addr + XTTCPS_CNT_CNTRL_OFFSET); __raw_writel(CLK_CNTRL_PRESCALE | CLK_CNTRL_PRESCALE_EN, - ttcce->xttc.base_addr + XTTCPSS_CLK_CNTRL_OFFSET); - __raw_writel(0x1, ttcce->xttc.base_addr + XTTCPSS_IER_OFFSET); + ttcce->xttc.base_addr + XTTCPS_CLK_CNTRL_OFFSET); + __raw_writel(0x1, ttcce->xttc.base_addr + XTTCPS_IER_OFFSET); - err = request_irq(irq, xttcpss_clock_event_interrupt, IRQF_TIMER, + err = request_irq(irq, xttcps_clock_event_interrupt, IRQF_TIMER, np->name, ttcce); if (WARN_ON(err)) return; @@ -301,12 +301,12 @@ static const __initconst struct of_device_id zynq_ttc_match[] = { }; /** - * xttcpss_timer_init - Initialize the timer + * xttcps_timer_init - Initialize the timer * * Initializes the timer hardware and register the clock source and clock event * timers with Linux kernal timer framework **/ -void __init xttcpss_timer_init(void) +void __init xttcps_timer_init(void) { struct device_node *np; -- 1.8.0.2 ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/7] arm: zynq: timer: Replace PSS through PS 2012-12-19 0:16 ` [PATCH 1/7] arm: zynq: timer: Replace PSS through PS Soren Brinkmann @ 2012-12-19 2:31 ` Josh Cartwright 2012-12-19 4:21 ` Soren Brinkmann 0 siblings, 1 reply; 9+ messages in thread From: Josh Cartwright @ 2012-12-19 2:31 UTC (permalink / raw) To: Soren Brinkmann Cc: linux-kernel, Michal Simek, monstr, John Linn, git, linux-arm-kernel On Tue, Dec 18, 2012 at 04:16:33PM -0800, Soren Brinkmann wrote: > The acronym PSS is deprecated by Xilinx. The correct term, which is > also used in Xilinx documentation is PS (processing system). > This is just a search and replace: > - s/PSS/PS/g > - s/pss/ps/g > > Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> [..] > --- a/arch/arm/mach-zynq/timer.c > +++ b/arch/arm/mach-zynq/timer.c > @@ -35,17 +35,17 @@ > * Timer Register Offset Definitions of Timer 1, Increment base address by 4 > * and use same offsets for Timer 2 > */ > -#define XTTCPSS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */ > -#define XTTCPSS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */ > -#define XTTCPSS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */ > -#define XTTCPSS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */ > -#define XTTCPSS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */ > -#define XTTCPSS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */ > -#define XTTCPSS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */ > -#define XTTCPSS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */ > -#define XTTCPSS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */ > - > -#define XTTCPSS_CNT_CNTRL_DISABLE_MASK 0x1 > +#define XTTCPS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */ > +#define XTTCPS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */ > +#define XTTCPS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */ > +#define XTTCPS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */ > +#define XTTCPS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */ > +#define XTTCPS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */ > +#define XTTCPS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */ > +#define XTTCPS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */ > +#define XTTCPS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */ > + > +#define XTTCPS_CNT_CNTRL_DISABLE_MASK 0x1 > > /* Setup the timers to use pre-scaling, using a fixed value for now that will > * work across most input frequency, but it may need to be more dynamic > @@ -57,72 +57,72 @@ > #define CNT_CNTRL_RESET (1<<4) > > /** > - * struct xttcpss_timer - This definition defines local timer structure > + * struct xttcps_timer - This definition defines local timer structure > * > * @base_addr: Base address of timer > **/ > -struct xttcpss_timer { > +struct xttcps_timer { > void __iomem *base_addr; > }; > > -struct xttcpss_timer_clocksource { > - struct xttcpss_timer xttc; > +struct xttcps_timer_clocksource { > + struct xttcps_timer xttc; > struct clocksource cs; > }; > > -#define to_xttcpss_timer_clksrc(x) \ > - container_of(x, struct xttcpss_timer_clocksource, cs) > +#define to_xttcps_timer_clksrc(x) \ > + container_of(x, struct xttcps_timer_clocksource, cs) > > -struct xttcpss_timer_clockevent { > - struct xttcpss_timer xttc; > +struct xttcps_timer_clockevent { > + struct xttcps_timer xttc; > struct clock_event_device ce; > struct clk *clk; > }; > > -#define to_xttcpss_timer_clkevent(x) \ > - container_of(x, struct xttcpss_timer_clockevent, ce) > +#define to_xttcps_timer_clkevent(x) \ > + container_of(x, struct xttcps_timer_clockevent, ce) > > /** > - * xttcpss_set_interval - Set the timer interval value > + * xttcps_set_interval - Set the timer interval value > * > * @timer: Pointer to the timer instance > * @cycles: Timer interval ticks > **/ > -static void xttcpss_set_interval(struct xttcpss_timer *timer, > +static void xttcps_set_interval(struct xttcps_timer *timer, > unsigned long cycles) Stylistic nit, but if we're going to be making cosmetic changes of this sort, I'd personally like to see the arguments lined up properly: static void xttcps_set_interval(struct xttcps_timer *timer, unsigned long cycles) > { [..] > @@ -136,46 +136,46 @@ static irqreturn_t xttcpss_clock_event_interrupt(int irq, void *dev_id) > **/ > static cycle_t __xttc_clocksource_read(struct clocksource *cs) > { > - struct xttcpss_timer *timer = &to_xttcpss_timer_clksrc(cs)->xttc; > + struct xttcps_timer *timer = &to_xttcps_timer_clksrc(cs)->xttc; > > return (cycle_t)__raw_readl(timer->base_addr + > - XTTCPSS_COUNT_VAL_OFFSET); > + XTTCPS_COUNT_VAL_OFFSET); > } > > /** > - * xttcpss_set_next_event - Sets the time interval for next event > + * xttcps_set_next_event - Sets the time interval for next event > * > * @cycles: Timer interval ticks > * @evt: Address of clock event instance > * > * returns: Always 0 - success > **/ > -static int xttcpss_set_next_event(unsigned long cycles, > +static int xttcps_set_next_event(unsigned long cycles, > struct clock_event_device *evt) Likewise for the other functions: static int xttcps_set_next_event(unsigned long cycles, struct clock_event_device *evt) And so on. Josh ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/7] arm: zynq: timer: Replace PSS through PS 2012-12-19 2:31 ` Josh Cartwright @ 2012-12-19 4:21 ` Soren Brinkmann 0 siblings, 0 replies; 9+ messages in thread From: Soren Brinkmann @ 2012-12-19 4:21 UTC (permalink / raw) To: Josh Cartwright Cc: Soren Brinkmann, linux-kernel, Michal Simek, monstr, John Linn, git, linux-arm-kernel Hi Josh, On Tue, Dec 18, 2012 at 08:31:20PM -0600, Josh Cartwright wrote: > On Tue, Dec 18, 2012 at 04:16:33PM -0800, Soren Brinkmann wrote: > > The acronym PSS is deprecated by Xilinx. The correct term, which is > > also used in Xilinx documentation is PS (processing system). > > This is just a search and replace: > > - s/PSS/PS/g > > - s/pss/ps/g > > > > Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> > [..] > > --- a/arch/arm/mach-zynq/timer.c > > +++ b/arch/arm/mach-zynq/timer.c > > @@ -35,17 +35,17 @@ > > * Timer Register Offset Definitions of Timer 1, Increment base address by 4 > > * and use same offsets for Timer 2 > > */ > > -#define XTTCPSS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */ > > -#define XTTCPSS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */ > > -#define XTTCPSS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */ > > -#define XTTCPSS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */ > > -#define XTTCPSS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */ > > -#define XTTCPSS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */ > > -#define XTTCPSS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */ > > -#define XTTCPSS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */ > > -#define XTTCPSS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */ > > - > > -#define XTTCPSS_CNT_CNTRL_DISABLE_MASK 0x1 > > +#define XTTCPS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */ > > +#define XTTCPS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */ > > +#define XTTCPS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */ > > +#define XTTCPS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */ > > +#define XTTCPS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */ > > +#define XTTCPS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */ > > +#define XTTCPS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */ > > +#define XTTCPS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */ > > +#define XTTCPS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */ > > + > > +#define XTTCPS_CNT_CNTRL_DISABLE_MASK 0x1 > > > > /* Setup the timers to use pre-scaling, using a fixed value for now that will > > * work across most input frequency, but it may need to be more dynamic > > @@ -57,72 +57,72 @@ > > #define CNT_CNTRL_RESET (1<<4) > > > > /** > > - * struct xttcpss_timer - This definition defines local timer structure > > + * struct xttcps_timer - This definition defines local timer structure > > * > > * @base_addr: Base address of timer > > **/ > > -struct xttcpss_timer { > > +struct xttcps_timer { > > void __iomem *base_addr; > > }; > > > > -struct xttcpss_timer_clocksource { > > - struct xttcpss_timer xttc; > > +struct xttcps_timer_clocksource { > > + struct xttcps_timer xttc; > > struct clocksource cs; > > }; > > > > -#define to_xttcpss_timer_clksrc(x) \ > > - container_of(x, struct xttcpss_timer_clocksource, cs) > > +#define to_xttcps_timer_clksrc(x) \ > > + container_of(x, struct xttcps_timer_clocksource, cs) > > > > -struct xttcpss_timer_clockevent { > > - struct xttcpss_timer xttc; > > +struct xttcps_timer_clockevent { > > + struct xttcps_timer xttc; > > struct clock_event_device ce; > > struct clk *clk; > > }; > > > > -#define to_xttcpss_timer_clkevent(x) \ > > - container_of(x, struct xttcpss_timer_clockevent, ce) > > +#define to_xttcps_timer_clkevent(x) \ > > + container_of(x, struct xttcps_timer_clockevent, ce) > > > > /** > > - * xttcpss_set_interval - Set the timer interval value > > + * xttcps_set_interval - Set the timer interval value > > * > > * @timer: Pointer to the timer instance > > * @cycles: Timer interval ticks > > **/ > > -static void xttcpss_set_interval(struct xttcpss_timer *timer, > > +static void xttcps_set_interval(struct xttcps_timer *timer, > > unsigned long cycles) > > Stylistic nit, but if we're going to be making cosmetic changes of this > sort, I'd personally like to see the arguments lined up properly: > > static void xttcps_set_interval(struct xttcps_timer *timer, > unsigned long cycles) I actually don't like that because it's rather high maintenance to align arguments like this - and keeping them that way. I usually rely on vim with smartindent set to produce reasonable indent levels. And reviewing the coding guideline, I'd even say it's not encouraged: "Descendants are always substantially shorter than the parent and are placed substantially to the right. The same applies to function headers with a long argument list." Thanks, Soren ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 2/7] arm: zynq: timer: Remove unnecessary register write [not found] <1355876199-23788-1-git-send-email-soren.brinkmann@xilinx.com> 2012-12-19 0:16 ` [PATCH 1/7] arm: zynq: timer: Replace PSS through PS Soren Brinkmann @ 2012-12-19 0:16 ` Soren Brinkmann 2012-12-19 0:16 ` [PATCH 3/7] arm: zynq: timer: Remove unused #defines Soren Brinkmann ` (4 subsequent siblings) 6 siblings, 0 replies; 9+ messages in thread From: Soren Brinkmann @ 2012-12-19 0:16 UTC (permalink / raw) To: linux-kernel, Michal Simek, monstr, John Linn Cc: git, josh.cartwright, Soren Brinkmann Acknowedging an interrupt requires to read the interrupt register only. The write was only required to work around a bug in the QEMU implementation of the TTC, which is fixed. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> --- @Peter: I took over your ACK, since it's the same change we applied to the Xilinx tree a couple of weeks ago. Let me know if this should be removed. arch/arm/mach-zynq/timer.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm/mach-zynq/timer.c b/arch/arm/mach-zynq/timer.c index 570491d..f1d224b 100644 --- a/arch/arm/mach-zynq/timer.c +++ b/arch/arm/mach-zynq/timer.c @@ -121,8 +121,7 @@ static irqreturn_t xttcps_clock_event_interrupt(int irq, void *dev_id) struct xttcps_timer *timer = &xttce->xttc; /* Acknowledge the interrupt and call event handler */ - __raw_writel(__raw_readl(timer->base_addr + XTTCPS_ISR_OFFSET), - timer->base_addr + XTTCPS_ISR_OFFSET); + __raw_readl(timer->base_addr + XTTCPS_ISR_OFFSET); xttce->ce.event_handler(&xttce->ce); -- 1.8.0.2 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 3/7] arm: zynq: timer: Remove unused #defines [not found] <1355876199-23788-1-git-send-email-soren.brinkmann@xilinx.com> 2012-12-19 0:16 ` [PATCH 1/7] arm: zynq: timer: Replace PSS through PS Soren Brinkmann 2012-12-19 0:16 ` [PATCH 2/7] arm: zynq: timer: Remove unnecessary register write Soren Brinkmann @ 2012-12-19 0:16 ` Soren Brinkmann 2012-12-19 0:16 ` [PATCH 4/7] arm: zynq: timer: Align columns Soren Brinkmann ` (3 subsequent siblings) 6 siblings, 0 replies; 9+ messages in thread From: Soren Brinkmann @ 2012-12-19 0:16 UTC (permalink / raw) To: linux-kernel, Michal Simek, monstr, John Linn Cc: git, josh.cartwright, Soren Brinkmann Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Acked-by: John Linn <john.linn@xilinx.com> --- Michal/John: I took over you ACKs since we applied the same change to the Xilinx tree recently. Let me know if I should remove them. arch/arm/mach-zynq/timer.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/arm/mach-zynq/timer.c b/arch/arm/mach-zynq/timer.c index f1d224b..80bf474 100644 --- a/arch/arm/mach-zynq/timer.c +++ b/arch/arm/mach-zynq/timer.c @@ -39,9 +39,6 @@ #define XTTCPS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */ #define XTTCPS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */ #define XTTCPS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */ -#define XTTCPS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */ -#define XTTCPS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */ -#define XTTCPS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */ #define XTTCPS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */ #define XTTCPS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */ -- 1.8.0.2 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 4/7] arm: zynq: timer: Align columns [not found] <1355876199-23788-1-git-send-email-soren.brinkmann@xilinx.com> ` (2 preceding siblings ...) 2012-12-19 0:16 ` [PATCH 3/7] arm: zynq: timer: Remove unused #defines Soren Brinkmann @ 2012-12-19 0:16 ` Soren Brinkmann 2012-12-19 0:16 ` [PATCH 5/7] arm: zynq: timer: Remove redundant #includes Soren Brinkmann ` (2 subsequent siblings) 6 siblings, 0 replies; 9+ messages in thread From: Soren Brinkmann @ 2012-12-19 0:16 UTC (permalink / raw) To: linux-kernel, Michal Simek, monstr, John Linn Cc: git, josh.cartwright, Soren Brinkmann Aligning the columns in a block of #defines, so that the values are starting in the same colum on every line. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> --- arch/arm/mach-zynq/timer.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-zynq/timer.c b/arch/arm/mach-zynq/timer.c index 80bf474..4b81ae1 100644 --- a/arch/arm/mach-zynq/timer.c +++ b/arch/arm/mach-zynq/timer.c @@ -35,9 +35,9 @@ * Timer Register Offset Definitions of Timer 1, Increment base address by 4 * and use same offsets for Timer 2 */ -#define XTTCPS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */ -#define XTTCPS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */ -#define XTTCPS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */ +#define XTTCPS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */ +#define XTTCPS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */ +#define XTTCPS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */ #define XTTCPS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */ #define XTTCPS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */ #define XTTCPS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */ -- 1.8.0.2 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 5/7] arm: zynq: timer: Remove redundant #includes [not found] <1355876199-23788-1-git-send-email-soren.brinkmann@xilinx.com> ` (3 preceding siblings ...) 2012-12-19 0:16 ` [PATCH 4/7] arm: zynq: timer: Align columns Soren Brinkmann @ 2012-12-19 0:16 ` Soren Brinkmann 2012-12-19 0:16 ` [PATCH 6/7] arm: zynq: timer: Fix comment style Soren Brinkmann 2012-12-19 0:16 ` [PATCH 7/7] arm: zynq: timer: Set clock_event cpumask Soren Brinkmann 6 siblings, 0 replies; 9+ messages in thread From: Soren Brinkmann @ 2012-12-19 0:16 UTC (permalink / raw) To: linux-kernel, Michal Simek, monstr, John Linn Cc: git, josh.cartwright, Soren Brinkmann Some #includes are implicitly included through others, some are just not needed. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> --- arch/arm/mach-zynq/timer.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/arm/mach-zynq/timer.c b/arch/arm/mach-zynq/timer.c index 4b81ae1..2b23d0f 100644 --- a/arch/arm/mach-zynq/timer.c +++ b/arch/arm/mach-zynq/timer.c @@ -15,20 +15,12 @@ * GNU General Public License for more details. */ -#include <linux/kernel.h> -#include <linux/init.h> #include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/types.h> -#include <linux/clocksource.h> #include <linux/clockchips.h> -#include <linux/io.h> -#include <linux/of.h> #include <linux/of_address.h> #include <linux/of_irq.h> #include <linux/slab.h> #include <linux/clk-provider.h> - #include "common.h" /* -- 1.8.0.2 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 6/7] arm: zynq: timer: Fix comment style [not found] <1355876199-23788-1-git-send-email-soren.brinkmann@xilinx.com> ` (4 preceding siblings ...) 2012-12-19 0:16 ` [PATCH 5/7] arm: zynq: timer: Remove redundant #includes Soren Brinkmann @ 2012-12-19 0:16 ` Soren Brinkmann 2012-12-19 0:16 ` [PATCH 7/7] arm: zynq: timer: Set clock_event cpumask Soren Brinkmann 6 siblings, 0 replies; 9+ messages in thread From: Soren Brinkmann @ 2012-12-19 0:16 UTC (permalink / raw) To: linux-kernel, Michal Simek, monstr, John Linn Cc: git, josh.cartwright, Soren Brinkmann Fixing multi line comment style at two locations. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> --- arch/arm/mach-zynq/timer.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-zynq/timer.c b/arch/arm/mach-zynq/timer.c index 2b23d0f..7b2e047 100644 --- a/arch/arm/mach-zynq/timer.c +++ b/arch/arm/mach-zynq/timer.c @@ -36,7 +36,8 @@ #define XTTCPS_CNT_CNTRL_DISABLE_MASK 0x1 -/* Setup the timers to use pre-scaling, using a fixed value for now that will +/* + * Setup the timers to use pre-scaling, using a fixed value for now that will * work across most input frequency, but it may need to be more dynamic */ #define PRESCALE_EXPONENT 11 /* 2 ^ PRESCALE_EXPONENT = PRESCALE */ @@ -89,8 +90,10 @@ static void xttcps_set_interval(struct xttcps_timer *timer, __raw_writel(cycles, timer->base_addr + XTTCPS_INTR_VAL_OFFSET); - /* Reset the counter (0x10) so that it starts from 0, one-shot - mode makes this needed for timing to be right. */ + /* + * Reset the counter (0x10) so that it starts from 0, one-shot + * mode makes this needed for timing to be right. + */ ctrl_reg |= CNT_CNTRL_RESET; ctrl_reg &= ~XTTCPS_CNT_CNTRL_DISABLE_MASK; __raw_writel(ctrl_reg, timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET); -- 1.8.0.2 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 7/7] arm: zynq: timer: Set clock_event cpumask [not found] <1355876199-23788-1-git-send-email-soren.brinkmann@xilinx.com> ` (5 preceding siblings ...) 2012-12-19 0:16 ` [PATCH 6/7] arm: zynq: timer: Fix comment style Soren Brinkmann @ 2012-12-19 0:16 ` Soren Brinkmann 6 siblings, 0 replies; 9+ messages in thread From: Soren Brinkmann @ 2012-12-19 0:16 UTC (permalink / raw) To: linux-kernel, Michal Simek, monstr, John Linn Cc: git, josh.cartwright, Soren Brinkmann The timers are common to both A9 cores, so let's set the clock event struct's cpumask accordingly, to all possible CPUs. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> --- arch/arm/mach-zynq/timer.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-zynq/timer.c b/arch/arm/mach-zynq/timer.c index 7b2e047..f9fbc9c 100644 --- a/arch/arm/mach-zynq/timer.c +++ b/arch/arm/mach-zynq/timer.c @@ -267,6 +267,7 @@ static void __init zynq_ttc_setup_clockevent(struct device_node *np, ttcce->ce.set_mode = xttcps_set_mode; ttcce->ce.rating = 200; ttcce->ce.irq = irq; + ttcce->ce.cpumask = cpu_possible_mask; __raw_writel(0x23, ttcce->xttc.base_addr + XTTCPS_CNT_CNTRL_OFFSET); __raw_writel(CLK_CNTRL_PRESCALE | CLK_CNTRL_PRESCALE_EN, -- 1.8.0.2 ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2012-12-19 4:21 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <1355876199-23788-1-git-send-email-soren.brinkmann@xilinx.com>
2012-12-19 0:16 ` [PATCH 1/7] arm: zynq: timer: Replace PSS through PS Soren Brinkmann
2012-12-19 2:31 ` Josh Cartwright
2012-12-19 4:21 ` Soren Brinkmann
2012-12-19 0:16 ` [PATCH 2/7] arm: zynq: timer: Remove unnecessary register write Soren Brinkmann
2012-12-19 0:16 ` [PATCH 3/7] arm: zynq: timer: Remove unused #defines Soren Brinkmann
2012-12-19 0:16 ` [PATCH 4/7] arm: zynq: timer: Align columns Soren Brinkmann
2012-12-19 0:16 ` [PATCH 5/7] arm: zynq: timer: Remove redundant #includes Soren Brinkmann
2012-12-19 0:16 ` [PATCH 6/7] arm: zynq: timer: Fix comment style Soren Brinkmann
2012-12-19 0:16 ` [PATCH 7/7] arm: zynq: timer: Set clock_event cpumask Soren Brinkmann
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