From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>,
linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 1/7] clk: renesas: rcar-gen3: Update Z clock rate formula in comments
Date: Fri, 26 Mar 2021 13:00:54 +0100 [thread overview]
Message-ID: <20210326120100.1577596-2-geert+renesas@glider.be> (raw)
In-Reply-To: <20210326120100.1577596-1-geert+renesas@glider.be>
The fixed divider in the calculation of the Z and Z2 clock rates was
generalized from a hardcoded value of two to a parameterized value, but
the comments were not updated accordingly.
Fixes: 20cc05ba04a93f05 ("clk: renesas: rcar-gen3: Parameterise Z and Z2 clock fixed divisor")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/clk/renesas/rcar-gen3-cpg.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index caa0f9414e45fe73..5edc85ab04b4430f 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -38,7 +38,8 @@
* Traits of this clock:
* prepare - clk_prepare only ensures that parents are prepared
* enable - clk_enable only ensures that parents are enabled
- * rate - rate is adjustable. clk->rate = (parent->rate * mult / 32 ) / 2
+ * rate - rate is adjustable.
+ * clk->rate = (parent->rate * mult / 32 ) / fixed_div
* parent - fixed parent. No clk_set_parent support
*/
#define CPG_FRQCRB 0x00000004
--
2.25.1
next prev parent reply other threads:[~2021-03-26 12:03 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-26 12:00 [PATCH 0/7] clk: renesas: rcar-gen3: Add support for CPU core clock boost modes Geert Uytterhoeven
2021-03-26 12:00 ` Geert Uytterhoeven [this message]
2021-03-26 12:00 ` [PATCH 2/7] clk: renesas: rcar-gen3: Make cpg_z_clk.mask u32 Geert Uytterhoeven
2021-03-26 12:00 ` [PATCH 3/7] clk: renesas: rcar-gen3: Remove superfluous masking in cpg_z_clk_set_rate() Geert Uytterhoeven
2021-03-26 12:00 ` [PATCH 4/7] clk: renesas: rcar-gen3: Grammar s/dependent of/dependent on/ Geert Uytterhoeven
2021-03-26 12:00 ` [PATCH 5/7] clk: renesas: rcar-gen3: Increase Z clock accuracy Geert Uytterhoeven
2021-03-26 12:00 ` [PATCH 6/7] clk: renesas: rcar-gen3: Add custom clock for PLLs Geert Uytterhoeven
2021-03-30 2:22 ` Stephen Boyd
2021-03-30 7:02 ` Geert Uytterhoeven
2021-04-01 1:40 ` Stephen Boyd
2021-03-26 12:01 ` [PATCH 7/7] clk: renesas: rcar-gen3: Add boost support to Z clocks Geert Uytterhoeven
2021-03-30 2:21 ` [PATCH 0/7] clk: renesas: rcar-gen3: Add support for CPU core clock boost modes Stephen Boyd
2021-03-30 10:05 ` Yoshihiro Shimoda
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