linux-kernel - [PATCH 3/4] clk: meson: s4: pll: hifi

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Message-Id: <20240906-fix_clk-v1-3-2977ef0d72e7@amlogic.com>
Date: Fri, 06 Sep 2024 13:52:35 +0800
From: Chuan Liu via B4 Relay <devnull+chuan.liu.amlogic.com@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jerome Brunet <jbrunet@...libre.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Kevin Hilman <khilman@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: linux-amlogic@...ts.infradead.org, linux-clk@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Chuan Liu <chuan.liu@...ogic.com>
Subject: [PATCH 3/4] clk: meson: s4: pll: hifi_pll support fractional
 multiplier

From: Chuan Liu <chuan.liu@...ogic.com>

The s4's hifi_pll supports a fractional frequency multiplier, but frac
parameters are not configured in the driver.

Signed-off-by: Chuan Liu <chuan.liu@...ogic.com>
---
 drivers/clk/meson/s4-pll.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/meson/s4-pll.c b/drivers/clk/meson/s4-pll.c
index b0258933fb9d..a97e19057b05 100644
--- a/drivers/clk/meson/s4-pll.c
+++ b/drivers/clk/meson/s4-pll.c
@@ -329,7 +329,6 @@ static struct clk_regmap s4_gp0_pll = {
  * Internal hifi pll emulation configuration parameters
  */
 static const struct reg_sequence s4_hifi_init_regs[] = {
-	{ .reg = ANACTRL_HIFIPLL_CTRL1,	.def = 0x00010e56 },
 	{ .reg = ANACTRL_HIFIPLL_CTRL2,	.def = 0x00000000 },
 	{ .reg = ANACTRL_HIFIPLL_CTRL3,	.def = 0x6a285c00 },
 	{ .reg = ANACTRL_HIFIPLL_CTRL4,	.def = 0x65771290 },
@@ -354,6 +353,11 @@ static struct clk_regmap s4_hifi_pll_dco = {
 			.shift   = 10,
 			.width   = 5,
 		},
+		.frac = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL1,
+			.shift   = 0,
+			.width   = 17,
+		},
 		.l = {
 			.reg_off = ANACTRL_HIFIPLL_CTRL0,
 			.shift   = 31,

-- 
2.42.0