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authorClaudiu Beznea <claudiu.beznea@microchip.com>2022-03-04 16:35:58 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2022-03-07 20:27:34 +0300
commit389e3bff69b4341b42779833063c7b462a6e6d42 (patch)
tree4c5733ee9fd4391c1a35a1f355ba971c587f7554 /drivers/clocksource/timer-microchip-pit64b.c
parentff10ee97cb203262e88d9c8bc87369cbd4004a0c (diff)
downloadlinux-389e3bff69b4341b42779833063c7b462a6e6d42.tar.xz
clocksource/drivers/timer-microchip-pit64b: Use 5MHz for clockevent
Use 5MHz clock for clockevent timers. This increases timer's resolution. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220304133601.2404086-4-claudiu.beznea@microchip.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource/timer-microchip-pit64b.c')
-rw-r--r--drivers/clocksource/timer-microchip-pit64b.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/clocksource/timer-microchip-pit64b.c b/drivers/clocksource/timer-microchip-pit64b.c
index 790d2c9b42a7..abce83d2f00b 100644
--- a/drivers/clocksource/timer-microchip-pit64b.c
+++ b/drivers/clocksource/timer-microchip-pit64b.c
@@ -42,8 +42,7 @@
#define MCHP_PIT64B_LSBMASK GENMASK_ULL(31, 0)
#define MCHP_PIT64B_PRES_TO_MODE(p) (MCHP_PIT64B_MR_PRES & ((p) << 8))
#define MCHP_PIT64B_MODE_TO_PRES(m) ((MCHP_PIT64B_MR_PRES & (m)) >> 8)
-#define MCHP_PIT64B_DEF_CS_FREQ 5000000UL /* 5 MHz */
-#define MCHP_PIT64B_DEF_CE_FREQ 32768 /* 32 KHz */
+#define MCHP_PIT64B_DEF_FREQ 5000000UL /* 5 MHz */
#define MCHP_PIT64B_NAME "pit64b"
@@ -418,7 +417,6 @@ static int __init mchp_pit64b_init_clkevt(struct mchp_pit64b_timer *timer,
static int __init mchp_pit64b_dt_init_timer(struct device_node *node,
bool clkevt)
{
- u32 freq = clkevt ? MCHP_PIT64B_DEF_CE_FREQ : MCHP_PIT64B_DEF_CS_FREQ;
struct mchp_pit64b_timer timer;
unsigned long clk_rate;
u32 irq = 0;
@@ -446,7 +444,7 @@ static int __init mchp_pit64b_dt_init_timer(struct device_node *node,
}
/* Initialize mode (prescaler + SGCK bit). To be used at runtime. */
- ret = mchp_pit64b_init_mode(&timer, freq);
+ ret = mchp_pit64b_init_mode(&timer, MCHP_PIT64B_DEF_FREQ);
if (ret)
goto irq_unmap;