linux-kernel - [PATCH 4/8] clk: qcom: camcc-x1e80100: Add support for camera QDSS debug clocks

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Message-Id: <20260128-purwa-videocc-camcc-v1-4-b23de57df5ba@oss.qualcomm.com>
Date: Wed, 28 Jan 2026 00:56:35 +0530
From: Jagadeesh Kona <jagadeesh.kona@....qualcomm.com>
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>,
        Jagadeesh Kona <quic_jkona@...cinc.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Ajit Pandey <ajit.pandey@....qualcomm.com>,
        Imran Shaik <imran.shaik@....qualcomm.com>,
        Taniya Das <taniya.das@....qualcomm.com>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jagadeesh Kona <jagadeesh.kona@....qualcomm.com>
Subject: [PATCH 4/8] clk: qcom: camcc-x1e80100: Add support for camera QDSS
 debug clocks

Add support for camera QDSS debug clocks on X1E80100 platform.

Signed-off-by: Jagadeesh Kona <jagadeesh.kona@....qualcomm.com>
---
 drivers/clk/qcom/camcc-x1e80100.c | 64 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)

diff --git a/drivers/clk/qcom/camcc-x1e80100.c b/drivers/clk/qcom/camcc-x1e80100.c
index cbcc1c9fcb341e51272f5595f574f9cb7ef2b52e..7e3fc7aee854eee841176a1330f97dc91af91670 100644
--- a/drivers/clk/qcom/camcc-x1e80100.c
+++ b/drivers/clk/qcom/camcc-x1e80100.c
@@ -1052,6 +1052,31 @@ static struct clk_rcg2 cam_cc_mclk7_clk_src = {
 	},
 };
 
+static const struct freq_tbl ftbl_cam_cc_qdss_debug_clk_src[] = {
+	F(19200000, P_BI_TCXO, 1, 0, 0),
+	F(60000000, P_CAM_CC_PLL8_OUT_EVEN, 8, 0, 0),
+	F(75000000, P_CAM_CC_PLL0_OUT_EVEN, 8, 0, 0),
+	F(150000000, P_CAM_CC_PLL0_OUT_EVEN, 4, 0, 0),
+	F(300000000, P_CAM_CC_PLL0_OUT_MAIN, 4, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 cam_cc_qdss_debug_clk_src = {
+	.cmd_rcgr = 0x13938,
+	.mnd_width = 0,
+	.hid_width = 5,
+	.parent_map = cam_cc_parent_map_0,
+	.freq_tbl = ftbl_cam_cc_qdss_debug_clk_src,
+	.hw_clk_ctrl = true,
+	.clkr.hw.init = &(const struct clk_init_data) {
+		.name = "cam_cc_qdss_debug_clk_src",
+		.parent_data = cam_cc_parent_data_0,
+		.num_parents = ARRAY_SIZE(cam_cc_parent_data_0),
+		.flags = CLK_SET_RATE_PARENT,
+		.ops = &clk_rcg2_shared_ops,
+	},
+};
+
 static const struct freq_tbl ftbl_cam_cc_sfe_0_clk_src[] = {
 	F(345600000, P_CAM_CC_PLL6_OUT_EVEN, 1, 0, 0),
 	F(432000000, P_CAM_CC_PLL6_OUT_EVEN, 1, 0, 0),
@@ -2182,6 +2207,42 @@ static struct clk_branch cam_cc_mclk7_clk = {
 	},
 };
 
+static struct clk_branch cam_cc_qdss_debug_clk = {
+	.halt_reg = 0x13a64,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x13a64,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_cc_qdss_debug_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_cc_qdss_debug_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch cam_cc_qdss_debug_xo_clk = {
+	.halt_reg = 0x13a68,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x13a68,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data) {
+			.name = "cam_cc_qdss_debug_xo_clk",
+			.parent_hws = (const struct clk_hw*[]) {
+				&cam_cc_xo_clk_src.clkr.hw,
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
 static struct clk_branch cam_cc_sfe_0_clk = {
 	.halt_reg = 0x133c0,
 	.halt_check = BRANCH_HALT,
@@ -2398,6 +2459,9 @@ static struct clk_regmap *cam_cc_x1e80100_clocks[] = {
 	[CAM_CC_PLL6_OUT_EVEN] = &cam_cc_pll6_out_even.clkr,
 	[CAM_CC_PLL8] = &cam_cc_pll8.clkr,
 	[CAM_CC_PLL8_OUT_EVEN] = &cam_cc_pll8_out_even.clkr,
+	[CAM_CC_QDSS_DEBUG_CLK] = &cam_cc_qdss_debug_clk.clkr,
+	[CAM_CC_QDSS_DEBUG_CLK_SRC] = &cam_cc_qdss_debug_clk_src.clkr,
+	[CAM_CC_QDSS_DEBUG_XO_CLK] = &cam_cc_qdss_debug_xo_clk.clkr,
 	[CAM_CC_SFE_0_CLK] = &cam_cc_sfe_0_clk.clkr,
 	[CAM_CC_SFE_0_CLK_SRC] = &cam_cc_sfe_0_clk_src.clkr,
 	[CAM_CC_SFE_0_FAST_AHB_CLK] = &cam_cc_sfe_0_fast_ahb_clk.clkr,

-- 
2.34.1