From: Hans de Goede <johannes.goede@oss.qualcomm.com>
Date: Tue, 30 Dec 2025 17:02:58 +0000 (+0100)
Subject: media: aptina-pll: Debug log p1 min and max values
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d57348c1bb8df069f992b3478fea642045712212;p=thirdparty%2Fkernel%2Flinux.git

media: aptina-pll: Debug log p1 min and max values

Make aptina_pll_calculate() debug log the calculated p1 min and max values,
this makes it easier to see how the m, n and p1 values were chosen.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
---

diff --git a/drivers/media/i2c/aptina-pll.c b/drivers/media/i2c/aptina-pll.c
index b1f89bbf9d473..cd2ed4583c97e 100644
--- a/drivers/media/i2c/aptina-pll.c
+++ b/drivers/media/i2c/aptina-pll.c
@@ -129,6 +129,8 @@ int aptina_pll_calculate(struct device *dev,
 	p1_max = min(limits->p1_max, limits->out_clock_max * div /
 		     (pll->ext_clock * pll->m));
 
+	dev_dbg(dev, "pll: p1 min %u max %u\n", p1_min, p1_max);
+
 	for (p1 = p1_max & ~1; p1 >= p1_min; p1 -= 2) {
 		unsigned int mf_inc = p1 / gcd(div, p1);
 		unsigned int mf_high;