[v3,10/11] ARM: davinci: dm646x: switch to using the clocksource driver

Commit Message

Bartosz Golaszewski Feb. 26, 2019, 12:06 p.m. UTC

From: Bartosz Golaszewski <[e-mail]>

We now have a proper clocksource driver for davinci. Switch the dm646x
platform to using it.

Signed-off-by: Bartosz Golaszewski <[e-mail]>
---
 arch/arm/mach-davinci/dm646x.c | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

Comments

David Lechner March 12, 2019, 6:45 p.m. UTC | #1

On 2/26/19 6:06 AM, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <[e-mail]>
> 
> We now have a proper clocksource driver for davinci. Switch the dm646x
> platform to using it.
> 
> Signed-off-by: Bartosz Golaszewski <[e-mail]>
> ---

Reviewed-by: David Lechner <[e-mail]>

Patch

diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 7e5af984ed9f..22c444a94e27 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -27,7 +27,8 @@ 
 #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"
@@ -499,16 +500,12 @@  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 = DEFINE_RES_IO(DAVINCI_TIMER0_BASE, SZ_4K),
+	.irq = {
+		DEFINE_RES_IRQ(DAVINCI_INTC_IRQ(IRQ_TINT0_TINT12)),
+		DEFINE_RES_IRQ(DAVINCI_INTC_IRQ(IRQ_TINT0_TINT34)),
+	},
 };
 
 static struct plat_serial8250_port dm646x_serial0_platform_data[] = {
@@ -586,7 +583,6 @@  static const struct davinci_soc_info davinci_soc_info_dm646x = {
 	.pinmux_base		= DAVINCI_SYSTEM_MODULE_BASE,
 	.pinmux_pins		= dm646x_pins,
 	.pinmux_pins_num	= ARRAY_SIZE(dm646x_pins),
-	.timer_info		= &dm646x_timer_info,
 	.emac_pdata		= &dm646x_emac_pdata,
 	.sram_dma		= 0x10010000,
 	.sram_len		= SZ_32K,
@@ -651,6 +647,7 @@  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 +664,8 @@  void __init dm646x_init_time(unsigned long ref_clk_rate,
 		return;
 	}
 
-	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[] = {