[PATCH 2/3] ARM: davinci: dm365: switch to using the clocksource driver

From: Bartosz Golaszewski
Date: Fri Dec 13 2019 - 11:25:20 EST


From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>

We now have a proper clocksource driver for davinci. Switch the dm365
platform to using it.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Reviewed-by: David Lechner <david@xxxxxxxxxxxxxx>
---
arch/arm/mach-davinci/dm365.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 9fc5c73cc0be..c1e0d46996e4 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -35,7 +35,8 @@
#include <mach/cputype.h>
#include <mach/mux.h>
#include <mach/serial.h>
-#include <mach/time.h>
+
+#include <clocksource/timer-davinci.h>

#include "asp.h"
#include "davinci.h"
@@ -660,10 +661,16 @@ static struct davinci_id dm365_ids[] = {
},
};

-static struct davinci_timer_info dm365_timer_info = {
- .timers = davinci_timer_instance,
- .clockevent_id = T0_BOT,
- .clocksource_id = T0_TOP,
+/*
+ * Bottom half of timer0 is used for clockevent, top half is used for
+ * clocksource.
+ */
+static const struct davinci_timer_cfg dm365_timer_cfg = {
+ .reg = DEFINE_RES_IO(DAVINCI_TIMER0_BASE, SZ_128),
+ .irq = {
+ DEFINE_RES_IRQ(DAVINCI_INTC_IRQ(IRQ_TINT0_TINT12)),
+ DEFINE_RES_IRQ(DAVINCI_INTC_IRQ(IRQ_TINT0_TINT34)),
+ },
};

#define DM365_UART1_BASE (IO_PHYS + 0x106000)
@@ -723,7 +730,6 @@ static const struct davinci_soc_info davinci_soc_info_dm365 = {
.pinmux_base = DAVINCI_SYSTEM_MODULE_BASE,
.pinmux_pins = dm365_pins,
.pinmux_pins_num = ARRAY_SIZE(dm365_pins),
- .timer_info = &dm365_timer_info,
.emac_pdata = &dm365_emac_pdata,
.sram_dma = 0x00010000,
.sram_len = SZ_32K,
@@ -771,6 +777,7 @@ void __init dm365_init_time(void)
{
void __iomem *pll1, *pll2, *psc;
struct clk *clk;
+ int rv;

clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DM365_REF_FREQ);

@@ -789,7 +796,8 @@ void __init dm365_init_time(void)
return;
}

- davinci_timer_init(clk);
+ rv = davinci_timer_register(clk, &dm365_timer_cfg);
+ WARN(rv, "Unable to register the timer: %d\n", rv);
}

void __init dm365_register_clocks(void)
--
2.23.0