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Subject[PATCH 16/17] ARM: davinci: dm646x: switch to using the clocksource driver
Date
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

We now have a proper clocksource driver for davinci. Switch the platform
to using it.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
arch/arm/mach-davinci/dm646x.c | 36 ++++++++++++++++++++++------------
1 file changed, 23 insertions(+), 13 deletions(-)

diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 018315fa9aa9..b3412920da0a 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -27,7 +27,8 @@
#include <mach/irqs.h>
#include <mach/mux.h>
#include <mach/serial.h>
-#include <mach/time.h>
+
+#include <clocksource/timer-davinci.h>

#include "asp.h"
#include "davinci.h"
@@ -498,16 +499,24 @@ static struct davinci_id dm646x_ids[] = {
},
};

-/*
- * T0_BOT: Timer 0, bottom: clockevent source for hrtimers
- * T0_TOP: Timer 0, top : clocksource for generic timekeeping
- * T1_BOT: Timer 1, bottom: (used by DSP in TI DSPLink code)
- * T1_TOP: Timer 1, top : <unused>
- */
-static struct davinci_timer_info dm646x_timer_info = {
- .timers = davinci_timer_instance,
- .clockevent_id = T0_BOT,
- .clocksource_id = T0_TOP,
+static const struct davinci_timer_cfg dm646x_timer_cfg = {
+ .reg = {
+ .start = DAVINCI_TIMER0_BASE,
+ .end = DAVINCI_TIMER0_BASE + SZ_4K,
+ .flags = IORESOURCE_MEM,
+ },
+ .irq = {
+ {
+ .start = IRQ_TINT0_TINT12,
+ .end = IRQ_TINT0_TINT12,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_TINT0_TINT34,
+ .end = IRQ_TINT0_TINT34,
+ .flags = IORESOURCE_IRQ,
+ }
+ }
};

static struct plat_serial8250_port dm646x_serial0_platform_data[] = {
@@ -589,7 +598,6 @@ static const struct davinci_soc_info davinci_soc_info_dm646x = {
.intc_type = DAVINCI_INTC_TYPE_AINTC,
.intc_irq_prios = dm646x_default_priorities,
.intc_irq_num = DAVINCI_N_AINTC_IRQ,
- .timer_info = &dm646x_timer_info,
.emac_pdata = &dm646x_emac_pdata,
.sram_dma = 0x10010000,
.sram_len = SZ_32K,
@@ -654,6 +662,7 @@ void __init dm646x_init_time(unsigned long ref_clk_rate,
{
void __iomem *pll1, *psc;
struct clk *clk;
+ int rv;

clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, ref_clk_rate);
clk_register_fixed_rate(NULL, "aux_clkin", NULL, 0, aux_clkin_rate);
@@ -667,7 +676,8 @@ void __init dm646x_init_time(unsigned long ref_clk_rate,
clk = clk_get(NULL, "timer0");
WARN(IS_ERR(clk), "Unable to get the timer clock\n");

- davinci_timer_init(clk);
+ rv = davinci_timer_register(clk, &dm646x_timer_cfg);
+ WARN(rv, "Unable to register the timer: %d\n", rv);
}

static struct resource dm646x_pll2_resources[] = {
--
2.19.1
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