From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2DDEC433DB for ; Fri, 22 Jan 2021 11:04:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A0660235DD for ; Fri, 22 Jan 2021 11:04:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728156AbhAVLDT (ORCPT ); Fri, 22 Jan 2021 06:03:19 -0500 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:35698 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727635AbhAVKwV (ORCPT ); Fri, 22 Jan 2021 05:52:21 -0500 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 10MAlUls011302; Fri, 22 Jan 2021 11:51:21 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=selector1; bh=VolS5deDcvTnZ8ENVJ/LfA/YXPUaY5XcnNz2nP415Go=; b=7EDlauTgctsKDWyJktmjlmYyfnUFTwOOjjQnhS8mod9oT/rRi14zKbtFJ+amnUgxL/f5 /RVxKbw/Iv9QSCb9ZTcRl2doRSVivTEdmqJxFgh4Y+6uRth5FtzPj/3iTopFDRI0jVDy +cg4XYwyshCE9wFBtfLZzg/A1ZdMz67Y2VoZk5kauZkvY7KF1XDlOcB1iBC2pMptbe3+ NEkFmex81hPy3ZKQV0WjiuEkRwvFESZNIBnvnWyJH1BLbwA2d1McIcLGuf49aswEGLwy GbZ3deoF7DiasceWGEHUMcD31r/qdyTmJJ2nUalZCCSv7Ta4iGLu0LoVVyfOT14CfyxW dg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 3668pe1e1p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 22 Jan 2021 11:51:21 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 4842110002A; Fri, 22 Jan 2021 11:51:21 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 34E7122DBCA; Fri, 22 Jan 2021 11:51:21 +0100 (CET) Received: from localhost (10.75.127.48) by SFHDAG2NODE3.st.com (10.75.127.6) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Fri, 22 Jan 2021 11:51:20 +0100 From: To: Michael Turquette , Stephen Boyd , Rob Herring , Maxime Coquelin , Alexandre Torgue , Philipp Zabel , Etienne Carriere , Gabriel Fernandez CC: , , , , Subject: [PATCH 03/14] clk: stm32mp1: remove intermediate pll clocks Date: Fri, 22 Jan 2021 11:50:50 +0100 Message-ID: <20210122105101.27374-4-gabriel.fernandez@foss.st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210122105101.27374-1-gabriel.fernandez@foss.st.com> References: <20210122105101.27374-1-gabriel.fernandez@foss.st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.48] X-ClientProxiedBy: SFHDAG1NODE2.st.com (10.75.127.2) To SFHDAG2NODE3.st.com (10.75.127.6) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343,18.0.737 definitions=2021-01-22_06:2021-01-21,2021-01-22 signatures=0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Gabriel Fernandez This patch is to prepare STM32MP1 clocks in trusted mode. Integrate the mux clock into pll clock will facilitate to have a more coherent clock tree in no trusted / trusted mode. Signed-off-by: Gabriel Fernandez --- drivers/clk/clk-stm32mp1.c | 65 ++++++++++++++++++++++++-------------- 1 file changed, 42 insertions(+), 23 deletions(-) diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c index 0e1d4427a8df..ee6968a2ad57 100644 --- a/drivers/clk/clk-stm32mp1.c +++ b/drivers/clk/clk-stm32mp1.c @@ -731,6 +731,7 @@ struct stm32_pll_obj { spinlock_t *lock; void __iomem *reg; struct clk_hw hw; + struct clk_mux mux; }; #define to_pll(_hw) container_of(_hw, struct stm32_pll_obj, hw) @@ -745,6 +746,8 @@ struct stm32_pll_obj { #define FRAC_MASK 0x1FFF #define FRAC_SHIFT 3 #define FRACLE BIT(16) +#define PLL_MUX_SHIFT 0 +#define PLL_MUX_MASK 3 static int __pll_is_enabled(struct clk_hw *hw) { @@ -856,16 +859,29 @@ static int pll_is_enabled(struct clk_hw *hw) return ret; } +static u8 pll_get_parent(struct clk_hw *hw) +{ + struct stm32_pll_obj *clk_elem = to_pll(hw); + struct clk_hw *mux_hw = &clk_elem->mux.hw; + + __clk_hw_set_clk(mux_hw, hw); + + return clk_mux_ops.get_parent(mux_hw); +} + static const struct clk_ops pll_ops = { .enable = pll_enable, .disable = pll_disable, .recalc_rate = pll_recalc_rate, .is_enabled = pll_is_enabled, + .get_parent = pll_get_parent, }; static struct clk_hw *clk_register_pll(struct device *dev, const char *name, - const char *parent_name, + const char * const *parent_names, + int num_parents, void __iomem *reg, + void __iomem *mux_reg, unsigned long flags, spinlock_t *lock) { @@ -881,8 +897,15 @@ static struct clk_hw *clk_register_pll(struct device *dev, const char *name, init.name = name; init.ops = &pll_ops; init.flags = flags; - init.parent_names = &parent_name; - init.num_parents = 1; + init.parent_names = parent_names; + init.num_parents = num_parents; + + element->mux.lock = lock; + element->mux.reg = mux_reg; + element->mux.shift = PLL_MUX_SHIFT; + element->mux.mask = PLL_MUX_MASK; + element->mux.flags = CLK_MUX_READ_ONLY; + element->mux.reg = mux_reg; element->hw.init = &init; element->reg = reg; @@ -1069,6 +1092,7 @@ static const struct clk_ops rtc_div_clk_ops = { struct stm32_pll_cfg { u32 offset; + u32 muxoff; }; static struct clk_hw *_clk_register_pll(struct device *dev, @@ -1078,8 +1102,11 @@ static struct clk_hw *_clk_register_pll(struct device *dev, { struct stm32_pll_cfg *stm_pll_cfg = cfg->cfg; - return clk_register_pll(dev, cfg->name, cfg->parent_name, - base + stm_pll_cfg->offset, cfg->flags, lock); + return clk_register_pll(dev, cfg->name, cfg->parent_names, + cfg->num_parents, + base + stm_pll_cfg->offset, + base + stm_pll_cfg->muxoff, + cfg->flags, lock); } struct stm32_cktim_cfg { @@ -1189,14 +1216,16 @@ _clk_stm32_register_composite(struct device *dev, .func = _clk_hw_register_mux,\ } -#define PLL(_id, _name, _parent, _flags, _offset)\ +#define PLL(_id, _name, _parents, _flags, _offset_p, _offset_mux)\ {\ .id = _id,\ .name = _name,\ - .parent_name = _parent,\ - .flags = _flags,\ + .parent_names = _parents,\ + .num_parents = ARRAY_SIZE(_parents),\ + .flags = CLK_IGNORE_UNUSED | (_flags),\ .cfg = &(struct stm32_pll_cfg) {\ - .offset = _offset,\ + .offset = _offset_p,\ + .muxoff = _offset_mux,\ },\ .func = _clk_register_pll,\ } @@ -1712,21 +1741,11 @@ static const struct clock_config stm32mp1_clock_cfg[] = { FIXED_FACTOR(CK_HSE_DIV2, "clk-hse-div2", "ck_hse", 0, 1, 2), - /* ref clock pll */ - MUX(NO_ID, "ref1", ref12_parents, CLK_OPS_PARENT_ENABLE, RCC_RCK12SELR, - 0, 2, CLK_MUX_READ_ONLY), - - MUX(NO_ID, "ref3", ref3_parents, CLK_OPS_PARENT_ENABLE, RCC_RCK3SELR, - 0, 2, CLK_MUX_READ_ONLY), - - MUX(NO_ID, "ref4", ref4_parents, CLK_OPS_PARENT_ENABLE, RCC_RCK4SELR, - 0, 2, CLK_MUX_READ_ONLY), - /* PLLs */ - PLL(PLL1, "pll1", "ref1", CLK_IGNORE_UNUSED, RCC_PLL1CR), - PLL(PLL2, "pll2", "ref1", CLK_IGNORE_UNUSED, RCC_PLL2CR), - PLL(PLL3, "pll3", "ref3", CLK_IGNORE_UNUSED, RCC_PLL3CR), - PLL(PLL4, "pll4", "ref4", CLK_IGNORE_UNUSED, RCC_PLL4CR), + PLL(PLL1, "pll1", ref12_parents, 0, RCC_PLL1CR, RCC_RCK12SELR), + PLL(PLL2, "pll2", ref12_parents, 0, RCC_PLL2CR, RCC_RCK12SELR), + PLL(PLL3, "pll3", ref3_parents, 0, RCC_PLL3CR, RCC_RCK3SELR), + PLL(PLL4, "pll4", ref4_parents, 0, RCC_PLL4CR, RCC_RCK4SELR), /* ODF */ COMPOSITE(PLL1_P, "pll1_p", PARENT("pll1"), 0, -- 2.17.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DFF2C433E0 for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Gabriel Fernandez This patch is to prepare STM32MP1 clocks in trusted mode. Integrate the mux clock into pll clock will facilitate to have a more coherent clock tree in no trusted / trusted mode. Signed-off-by: Gabriel Fernandez --- drivers/clk/clk-stm32mp1.c | 65 ++++++++++++++++++++++++-------------- 1 file changed, 42 insertions(+), 23 deletions(-) diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c index 0e1d4427a8df..ee6968a2ad57 100644 --- a/drivers/clk/clk-stm32mp1.c +++ b/drivers/clk/clk-stm32mp1.c @@ -731,6 +731,7 @@ struct stm32_pll_obj { spinlock_t *lock; void __iomem *reg; struct clk_hw hw; + struct clk_mux mux; }; #define to_pll(_hw) container_of(_hw, struct stm32_pll_obj, hw) @@ -745,6 +746,8 @@ struct stm32_pll_obj { #define FRAC_MASK 0x1FFF #define FRAC_SHIFT 3 #define FRACLE BIT(16) +#define PLL_MUX_SHIFT 0 +#define PLL_MUX_MASK 3 static int __pll_is_enabled(struct clk_hw *hw) { @@ -856,16 +859,29 @@ static int pll_is_enabled(struct clk_hw *hw) return ret; } +static u8 pll_get_parent(struct clk_hw *hw) +{ + struct stm32_pll_obj *clk_elem = to_pll(hw); + struct clk_hw *mux_hw = &clk_elem->mux.hw; + + __clk_hw_set_clk(mux_hw, hw); + + return clk_mux_ops.get_parent(mux_hw); +} + static const struct clk_ops pll_ops = { .enable = pll_enable, .disable = pll_disable, .recalc_rate = pll_recalc_rate, .is_enabled = pll_is_enabled, + .get_parent = pll_get_parent, }; static struct clk_hw *clk_register_pll(struct device *dev, const char *name, - const char *parent_name, + const char * const *parent_names, + int num_parents, void __iomem *reg, + void __iomem *mux_reg, unsigned long flags, spinlock_t *lock) { @@ -881,8 +897,15 @@ static struct clk_hw *clk_register_pll(struct device *dev, const char *name, init.name = name; init.ops = &pll_ops; init.flags = flags; - init.parent_names = &parent_name; - init.num_parents = 1; + init.parent_names = parent_names; + init.num_parents = num_parents; + + element->mux.lock = lock; + element->mux.reg = mux_reg; + element->mux.shift = PLL_MUX_SHIFT; + element->mux.mask = PLL_MUX_MASK; + element->mux.flags = CLK_MUX_READ_ONLY; + element->mux.reg = mux_reg; element->hw.init = &init; element->reg = reg; @@ -1069,6 +1092,7 @@ static const struct clk_ops rtc_div_clk_ops = { struct stm32_pll_cfg { u32 offset; + u32 muxoff; }; static struct clk_hw *_clk_register_pll(struct device *dev, @@ -1078,8 +1102,11 @@ static struct clk_hw *_clk_register_pll(struct device *dev, { struct stm32_pll_cfg *stm_pll_cfg = cfg->cfg; - return clk_register_pll(dev, cfg->name, cfg->parent_name, - base + stm_pll_cfg->offset, cfg->flags, lock); + return clk_register_pll(dev, cfg->name, cfg->parent_names, + cfg->num_parents, + base + stm_pll_cfg->offset, + base + stm_pll_cfg->muxoff, + cfg->flags, lock); } struct stm32_cktim_cfg { @@ -1189,14 +1216,16 @@ _clk_stm32_register_composite(struct device *dev, .func = _clk_hw_register_mux,\ } -#define PLL(_id, _name, _parent, _flags, _offset)\ +#define PLL(_id, _name, _parents, _flags, _offset_p, _offset_mux)\ {\ .id = _id,\ .name = _name,\ - .parent_name = _parent,\ - .flags = _flags,\ + .parent_names = _parents,\ + .num_parents = ARRAY_SIZE(_parents),\ + .flags = CLK_IGNORE_UNUSED | (_flags),\ .cfg = &(struct stm32_pll_cfg) {\ - .offset = _offset,\ + .offset = _offset_p,\ + .muxoff = _offset_mux,\ },\ .func = _clk_register_pll,\ } @@ -1712,21 +1741,11 @@ static const struct clock_config stm32mp1_clock_cfg[] = { FIXED_FACTOR(CK_HSE_DIV2, "clk-hse-div2", "ck_hse", 0, 1, 2), - /* ref clock pll */ - MUX(NO_ID, "ref1", ref12_parents, CLK_OPS_PARENT_ENABLE, RCC_RCK12SELR, - 0, 2, CLK_MUX_READ_ONLY), - - MUX(NO_ID, "ref3", ref3_parents, CLK_OPS_PARENT_ENABLE, RCC_RCK3SELR, - 0, 2, CLK_MUX_READ_ONLY), - - MUX(NO_ID, "ref4", ref4_parents, CLK_OPS_PARENT_ENABLE, RCC_RCK4SELR, - 0, 2, CLK_MUX_READ_ONLY), - /* PLLs */ - PLL(PLL1, "pll1", "ref1", CLK_IGNORE_UNUSED, RCC_PLL1CR), - PLL(PLL2, "pll2", "ref1", CLK_IGNORE_UNUSED, RCC_PLL2CR), - PLL(PLL3, "pll3", "ref3", CLK_IGNORE_UNUSED, RCC_PLL3CR), - PLL(PLL4, "pll4", "ref4", CLK_IGNORE_UNUSED, RCC_PLL4CR), + PLL(PLL1, "pll1", ref12_parents, 0, RCC_PLL1CR, RCC_RCK12SELR), + PLL(PLL2, "pll2", ref12_parents, 0, RCC_PLL2CR, RCC_RCK12SELR), + PLL(PLL3, "pll3", ref3_parents, 0, RCC_PLL3CR, RCC_RCK3SELR), + PLL(PLL4, "pll4", ref4_parents, 0, RCC_PLL4CR, RCC_RCK4SELR), /* ODF */ COMPOSITE(PLL1_P, "pll1_p", PARENT("pll1"), 0, -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel