diff mbox series

[17/31] omap: timer: fix the rate setting

Message ID 20200825092124.4284-18-dariobin@libero.it
State Changes Requested
Delegated to: Lokesh Vutla
Headers show
Series Add DM support for omap PWM backlight | expand

Commit Message

Dario Binacchi Aug. 25, 2020, 9:21 a.m. UTC 
The prescaler (PTV) setting must be taken into account even when the
timer input clock frequency has been set.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
---

 drivers/timer/omap-timer.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/timer/omap-timer.c b/drivers/timer/omap-timer.c
index cf3d27b96b..60af68e677 100644
--- a/drivers/timer/omap-timer.c
+++ b/drivers/timer/omap-timer.c
@@ -19,8 +19,6 @@ 
 #define TCLR_PRE_EN			BIT(5)	/* Pre-scaler enable */
 #define TCLR_PTV_SHIFT			(2)	/* Pre-scaler shift value */
 
-#define TIMER_CLOCK             (V_SCLK / (2 << CONFIG_SYS_PTV))
-
 struct omap_gptimer_regs {
 	unsigned int tidr;		/* offset 0x00 */
 	unsigned char res1[12];
@@ -63,7 +61,9 @@  static int omap_timer_probe(struct udevice *dev)
 	struct omap_timer_priv *priv = dev_get_priv(dev);
 
 	if (!uc_priv->clock_rate)
-		uc_priv->clock_rate = TIMER_CLOCK;
+		uc_priv->clock_rate = V_SCLK;
+
+	uc_priv->clock_rate /= (2 << CONFIG_SYS_PTV);
 
 	/* start the counter ticking up, reload value on overflow */
 	writel(0, &priv->regs->tldr);