linux-kernel - [PATCH 2/2] clk: qcom: gcc-sdm660: Add missing LPASS/CDSP vote clocks

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Message-Id: <20250815-gcc-sdm660-vote-clocks-and-gdscs-v1-2-c5a8af040093@yandex.ru>
Date: Fri, 15 Aug 2025 19:56:52 +0300
From: Nickolay Goppen via B4 Relay <devnull+setotau.yandex.ru@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Nickolay Goppen <setotau@...dex.ru>, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH 2/2] clk: qcom: gcc-sdm660: Add missing LPASS/CDSP vote
 clocks

From: Nickolay Goppen <setotau@...dex.ru>

For the proper functioning of SMMUs related to the audio/compute DSPs,
it makes sense that the clocks and power domains they rely on for
communication should be online.

Add the vote clocks & GDSCs that, when enabled, ensure all such
requirements are met, through various internal mechanisms.

Co-developed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Nickolay Goppen <setotau@...dex.ru>
---
 drivers/clk/qcom/gcc-sdm660.c | 72 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/drivers/clk/qcom/gcc-sdm660.c b/drivers/clk/qcom/gcc-sdm660.c
index 01a76f1b5b4c146937a4f5fa0011309fd6ed6be8..20253a06a5839b7265548b4f9fdc1ffc9cf6f9f5 100644
--- a/drivers/clk/qcom/gcc-sdm660.c
+++ b/drivers/clk/qcom/gcc-sdm660.c
@@ -2247,6 +2247,45 @@ static struct clk_branch gcc_usb_phy_cfg_ahb2phy_clk = {
 	},
 };
 
+static struct clk_branch hlos1_vote_lpass_adsp_smmu_clk = {
+	.halt_reg = 0x7d014,
+	.halt_check = BRANCH_VOTED,
+	.clkr = {
+		.enable_reg = 0x7d014,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "hlos1_vote_lpass_adsp_smmu_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch hlos1_vote_turing_adsp_smmu_clk = {
+	.halt_reg = 0x7d048,
+	.halt_check = BRANCH_VOTED,
+	.clkr = {
+		.enable_reg = 0x7d048,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "hlos1_vote_turing_adsp_smmu_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch hlos2_vote_turing_adsp_smmu_clk = {
+	.halt_reg = 0x7e048,
+	.halt_check = BRANCH_VOTED,
+	.clkr = {
+		.enable_reg = 0x7e048,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "hlos2_vote_turing_adsp_smmu_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
 static struct gdsc ufs_gdsc = {
 	.gdscr = 0x75004,
 	.gds_hw_ctrl = 0x0,
@@ -2277,6 +2316,33 @@ static struct gdsc pcie_0_gdsc = {
 	.flags = VOTABLE,
 };
 
+static struct gdsc hlos1_vote_turing_adsp_gdsc = {
+	.gdscr = 0x7d04c,
+	.pd = {
+		.name = "hlos1_vote_turing_adsp_gdsc",
+	},
+	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
+};
+
+static struct gdsc hlos2_vote_turing_adsp_gdsc = {
+	.gdscr = 0x7e04c,
+	.pd = {
+		.name = "hlos2_vote_turing_adsp_gdsc",
+	},
+	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
+};
+
+static struct gdsc hlos1_vote_lpass_adsp_gdsc = {
+	.gdscr = 0x7d034,
+	.pd = {
+		.name = "hlos1_vote_lpass_adsp_gdsc",
+	},
+	.pwrsts = PWRSTS_OFF_ON,
+	.flags = VOTABLE,
+};
+
 static struct clk_hw *gcc_sdm660_hws[] = {
 	&xo.hw,
 	&gpll0_early_div.hw,
@@ -2409,12 +2475,18 @@ static struct clk_regmap *gcc_sdm660_clocks[] = {
 	[USB30_MASTER_CLK_SRC] = &usb30_master_clk_src.clkr,
 	[USB30_MOCK_UTMI_CLK_SRC] = &usb30_mock_utmi_clk_src.clkr,
 	[USB3_PHY_AUX_CLK_SRC] = &usb3_phy_aux_clk_src.clkr,
+	[GCC_HLOS1_VOTE_LPASS_ADSP_SMMU_CLK] = &hlos1_vote_lpass_adsp_smmu_clk.clkr,
+	[GCC_HLOS1_VOTE_TURING_ADSP_SMMU_CLK] = &hlos1_vote_turing_adsp_smmu_clk.clkr,
+	[GCC_HLOS2_VOTE_TURING_ADSP_SMMU_CLK] = &hlos2_vote_turing_adsp_smmu_clk.clkr,
 };
 
 static struct gdsc *gcc_sdm660_gdscs[] = {
 	[UFS_GDSC] = &ufs_gdsc,
 	[USB_30_GDSC] = &usb_30_gdsc,
 	[PCIE_0_GDSC] = &pcie_0_gdsc,
+	[HLOS1_VOTE_TURING_ADSP_GDSC] = &hlos1_vote_turing_adsp_gdsc,
+	[HLOS2_VOTE_TURING_ADSP_GDSC] = &hlos2_vote_turing_adsp_gdsc,
+	[HLOS1_VOTE_LPASS_ADSP_GDSC] = &hlos1_vote_lpass_adsp_gdsc,
 };
 
 static const struct qcom_reset_map gcc_sdm660_resets[] = {

-- 
2.50.1