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From: "周琰杰 (Zhou Yanjie)" <zhouyanjie@wanyeetech.com>
To: sboyd@kernel.org, mturquette@baylibre.com, robh+dt@kernel.org,
	paul@crapouillou.net
Cc: linux-clk@vger.kernel.org, linux-mips@vger.kernel.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	dongsheng.qiu@ingenic.com, aric.pzqi@ingenic.com,
	rick.tyliu@ingenic.com, sihui.liu@ingenic.com,
	jun.jiang@ingenic.com, sernia.zhou@foxmail.com
Subject: [PATCH v7 01/11] clk: JZ4780: Add function for disable the second core.
Date: Sat, 24 Jul 2021 17:34:36 +0800	[thread overview]
Message-ID: <1627119286-125821-2-git-send-email-zhouyanjie@wanyeetech.com> (raw)
In-Reply-To: <1627119286-125821-1-git-send-email-zhouyanjie@wanyeetech.com>

Add "jz4780_core1_disable()" for disable the second core of JZ4780,
prepare for later commits.

Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
---

Notes:
    v1->v2:
    Add Paul Cercueil's Reviewed-by.
    
    v2->v3:
    No change.
    
    v3->v4:
    No change.
    
    v4->v5:
    No change.
    
    v5->v6:
    No change.
    
    v6->v7:
    No change.

 drivers/clk/ingenic/jz4780-cgu.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/clk/ingenic/jz4780-cgu.c b/drivers/clk/ingenic/jz4780-cgu.c
index 0268d23..dcca74e 100644
--- a/drivers/clk/ingenic/jz4780-cgu.c
+++ b/drivers/clk/ingenic/jz4780-cgu.c
@@ -252,8 +252,29 @@ static int jz4780_core1_enable(struct clk_hw *hw)
 	return 0;
 }
 
+static void jz4780_core1_disable(struct clk_hw *hw)
+{
+	struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw);
+	struct ingenic_cgu *cgu = ingenic_clk->cgu;
+	unsigned long flags;
+	u32 lcr, clkgr1;
+
+	spin_lock_irqsave(&cgu->lock, flags);
+
+	lcr = readl(cgu->base + CGU_REG_LCR);
+	lcr |= LCR_PD_SCPU;
+	writel(lcr, cgu->base + CGU_REG_LCR);
+
+	clkgr1 = readl(cgu->base + CGU_REG_CLKGR1);
+	clkgr1 |= CLKGR1_CORE1;
+	writel(clkgr1, cgu->base + CGU_REG_CLKGR1);
+
+	spin_unlock_irqrestore(&cgu->lock, flags);
+}
+
 static const struct clk_ops jz4780_core1_ops = {
 	.enable = jz4780_core1_enable,
+	.disable = jz4780_core1_disable,
 };
 
 static const s8 pll_od_encoding[16] = {
-- 
2.7.4


  reply	other threads:[~2021-07-24  9:35 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-24  9:34 [PATCH v7 00/11] Add new clocks and fix bugs for Ingenic SoCs 周琰杰 (Zhou Yanjie)
2021-07-24  9:34 ` 周琰杰 (Zhou Yanjie) [this message]
2021-07-24  9:34 ` [PATCH v7 02/11] clk: Ingenic: Adjust cgu code to make it compatible with I2S PLL 周琰杰 (Zhou Yanjie)
2021-08-19  9:37   ` Paul Cercueil
2021-08-27 17:46     ` Zhou Yanjie
2021-07-24  9:34 ` [PATCH v7 03/11] dt-bindings: clock: Add missing clocks for Ingenic SoCs 周琰杰 (Zhou Yanjie)
2021-07-24  9:34 ` [PATCH v7 04/11] clk: Ingenic: Fix problem of MAC clock in Ingenic X1000 and X1830 周琰杰 (Zhou Yanjie)
2021-08-19  9:39   ` Paul Cercueil
2021-07-24  9:34 ` [PATCH v7 05/11] clk: Ingenic: Add missing clocks for Ingenic SoCs 周琰杰 (Zhou Yanjie)
2021-07-24  9:34 ` [PATCH v7 06/11] clk: Ingenic: Clean up and reformat the code 周琰杰 (Zhou Yanjie)
2021-08-19  9:46   ` Paul Cercueil
2021-08-27 17:47     ` Zhou Yanjie
2021-07-24  9:34 ` [PATCH v7 07/11] dt-bindings: clock: Add documentation for JZ4775 and X2000 bindings 周琰杰 (Zhou Yanjie)
2021-07-24  9:34 ` [PATCH v7 08/11] dt-bindings: clock: Add JZ4775 clock bindings 周琰杰 (Zhou Yanjie)
2021-07-26 22:18   ` Rob Herring
2021-08-19  9:47   ` Paul Cercueil
2021-07-24  9:34 ` [PATCH v7 09/11] dt-bindings: clock: Add X2000 " 周琰杰 (Zhou Yanjie)
2021-07-26 22:19   ` Rob Herring
2021-08-19  9:48   ` Paul Cercueil
2021-07-24  9:34 ` [PATCH v7 10/11] clk: Ingenic: Add CGU driver for JZ4775 周琰杰 (Zhou Yanjie)
2021-07-24  9:34 ` [PATCH v7 11/11] clk: Ingenic: Add CGU driver for X2000 周琰杰 (Zhou Yanjie)
2021-08-19  6:44 ` [PATCH v7 00/11] Add new clocks and fix bugs for Ingenic SoCs Zhou Yanjie

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