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From: Changhuang Liang <changhuang.liang@starfivetech.com>
To: Michael Turquette <mturquette@baylibre.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Stephen Boyd <sboyd@kernel.org>, Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Emil Renner Berthing <kernel@esmil.dk>,
	Kees Cook <kees@kernel.org>,
	"Gustavo A . R . Silva" <gustavoars@kernel.org>,
	Richard Cochran <richardcochran@gmail.com>
Cc: linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-hardening@vger.kernel.org, netdev@vger.kernel.org,
	Sia Jee Heng <jeeheng.sia@starfivetech.com>,
	Hal Feng <hal.feng@starfivetech.com>,
	Ley Foon Tan <leyfoon.tan@starfivetech.com>,
	Changhuang Liang <changhuang.liang@starfivetech.com>
Subject: [PATCH v1 12/22] clk: starfive: Introduce inverter and divider
Date: Thu,  2 Apr 2026 03:55:13 -0700	[thread overview]
Message-ID: <20260402105523.447523-13-changhuang.liang@starfivetech.com> (raw)
In-Reply-To: <20260402105523.447523-1-changhuang.liang@starfivetech.com>

Introduce inverter and divider for starfive clocks.

Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
---
 drivers/clk/starfive/clk-starfive-common.c | 12 ++++++++++++
 drivers/clk/starfive/clk-starfive-common.h |  8 ++++++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/clk/starfive/clk-starfive-common.c b/drivers/clk/starfive/clk-starfive-common.c
index 9c0eb7a50d1e..d84b326c9aed 100644
--- a/drivers/clk/starfive/clk-starfive-common.c
+++ b/drivers/clk/starfive/clk-starfive-common.c
@@ -298,6 +298,15 @@ static const struct clk_ops starfive_clk_inv_ops = {
 	.debug_init = starfive_clk_debug_init,
 };
 
+static const struct clk_ops starfive_clk_idiv_ops = {
+	.get_phase = starfive_clk_get_phase,
+	.set_phase = starfive_clk_set_phase,
+	.recalc_rate = starfive_clk_recalc_rate,
+	.determine_rate = starfive_clk_determine_rate,
+	.set_rate = starfive_clk_set_rate,
+	.debug_init = starfive_clk_debug_init,
+};
+
 const struct clk_ops *starfive_clk_ops(u32 max)
 {
 	if (max & STARFIVE_CLK_DIV_MASK) {
@@ -308,6 +317,9 @@ const struct clk_ops *starfive_clk_ops(u32 max)
 		}
 		if (max & STARFIVE_CLK_ENABLE)
 			return &starfive_clk_gdiv_ops;
+		else if (max & STARFIVE_CLK_INVERT)
+			return &starfive_clk_idiv_ops;
+
 		if (max == STARFIVE_CLK_FRAC_MAX)
 			return &starfive_clk_fdiv_ops;
 		return &starfive_clk_div_ops;
diff --git a/drivers/clk/starfive/clk-starfive-common.h b/drivers/clk/starfive/clk-starfive-common.h
index a03824e9e75f..fd9bf6f20152 100644
--- a/drivers/clk/starfive/clk-starfive-common.h
+++ b/drivers/clk/starfive/clk-starfive-common.h
@@ -103,6 +103,14 @@ struct starfive_clk_data {
 	.parents = { [0] = _parent },						\
 }
 
+#define STARFIVE_IDIV(_idx, _name, _flags, _max, _parent)			\
+[_idx] = {									\
+	.name = _name,								\
+	.flags = _flags,							\
+	.max = STARFIVE_CLK_INVERT | (_max),					\
+	.parents = { [0] = _parent },						\
+}
+
 struct starfive_clk {
 	struct clk_hw hw;
 	unsigned int idx;
-- 
2.25.1


  parent reply	other threads:[~2026-04-02 11:12 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-02 10:55 [PATCH v1 00/22] Add basic clocks and resets for JHB100 SoC Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 01/22] reset: starfive: Rename file name "jh71x0" to "common" Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 02/22] reset: starfive: Convert the word "jh71x0" to "starfive" Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 03/22] clk: starfive: Rename file name "jh71x0" to "common" Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 04/22] clk: starfive: Convert the word "jh71x0" to "starfive" Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 05/22] dt-bindings: clock: Add StarFive JHB100 System-0 clock and reset generator Changhuang Liang
2026-04-02 12:22   ` Philipp Zabel
2026-04-03  0:53     ` Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 06/22] clk: starfive: Add JHB100 System-0 clock generator driver Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 07/22] dt-bindings: clock: Add StarFive JHB100 System-1 clock and reset generator Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 08/22] clk: starfive: Add JHB100 System-1 clock generator driver Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 09/22] dt-bindings: clock: Add StarFive JHB100 System-2 clock and reset generator Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 10/22] clk: starfive: Add JHB100 System-2 clock generator driver Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 11/22] dt-bindings: clock: Add StarFive JHB100 Peripheral-0 clock and reset generator Changhuang Liang
2026-04-02 10:55 ` Changhuang Liang [this message]
2026-04-02 10:55 ` [PATCH v1 13/22] clk: starfive: Expand the storage of clock parent index Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 14/22] clk: starfive: Add StarFive JHB100 Peripheral-0 clock driver Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 15/22] dt-bindings: clock: Add StarFive JHB100 Peripheral-1 clock and reset generator Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 16/22] clk: starfive: Add StarFive JHB100 Peripheral-1 clock driver Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 17/22] dt-bindings: clock: Add StarFive JHB100 Peripheral-2 clock and reset generator Changhuang Liang
2026-04-04 11:34   ` Krzysztof Kozlowski
2026-04-07  1:37     ` Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 18/22] clk: starfive: Add StarFive JHB100 Peripheral-2 clock driver Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 19/22] dt-bindings: clock: Add StarFive JHB100 Peripheral-3 clock and reset generator Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 20/22] clk: starfive: Add StarFive JHB100 Peripheral-3 clock driver Changhuang Liang
2026-04-02 10:55 ` [PATCH v1 21/22] reset: starfive: Add StarFive JHB100 reset driver Changhuang Liang
2026-04-02 12:23   ` Philipp Zabel
2026-04-02 10:55 ` [PATCH v1 22/22] riscv: dts: starfive: jhb100: Add clocks and resets nodes Changhuang Liang
2026-04-02 12:14   ` Conor Dooley
2026-04-03  1:07     ` Changhuang Liang
2026-04-03 14:03       ` Conor Dooley

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