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Date: Wed, 3 Apr 2024 16:12:19 +0530
From: Varadarajan Narayanan <quic_varada@...cinc.com>
To: <andersson@...nel.org>, <konrad.dybcio@...aro.org>,
        <mturquette@...libre.com>, <sboyd@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <djakov@...nel.org>,
        <dmitry.baryshkov@...aro.org>, <quic_varada@...cinc.com>,
        <quic_anusha@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <linux-clk@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>
Subject: [PATCH v7 4/5] clk: qcom: ipq9574: Use icc-clk for enabling NoC related clocks

Use the icc-clk framework to enable few clocks to be able to
create paths and use the peripherals connected on those NoCs.

Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
---
v7: Auto select INTERCONNECT & INTERCONNECT_CLK in COMMON_CLK_QCOM
    to address build break with random config build test, with the
    following combination

	CONFIG_COMMON_CLK_QCOM=y
		and
	CONFIG_INTERCONNECT_CLK=m

    the following error is seen as devm_icc_clk_register is in a
    module and being referenced from vmlinux.

	powerpc64-linux-ld: drivers/clk/qcom/common.o: in function `qcom_cc_really_probe':
	>> common.c:(.text+0x980): undefined reference to `devm_icc_clk_register'

v6: Move enum to dt-bindings and share between here and DT
    first_id -> icc_first_node_id
v5: Split from common.c changes into separate patch
    No functional changes
---
 drivers/clk/qcom/Kconfig       |  2 ++
 drivers/clk/qcom/gcc-ipq9574.c | 30 ++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index b0e0eeb1604e..e51328bbd146 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -17,6 +17,8 @@ menuconfig COMMON_CLK_QCOM
 	select RATIONAL
 	select REGMAP_MMIO
 	select RESET_CONTROLLER
+	select INTERCONNECT
+	select INTERCONNECT_CLK
 
 if COMMON_CLK_QCOM
 
diff --git a/drivers/clk/qcom/gcc-ipq9574.c b/drivers/clk/qcom/gcc-ipq9574.c
index 43da03e4c2dd..0ede625777c9 100644
--- a/drivers/clk/qcom/gcc-ipq9574.c
+++ b/drivers/clk/qcom/gcc-ipq9574.c
@@ -12,6 +12,7 @@
 
 #include <dt-bindings/clock/qcom,ipq9574-gcc.h>
 #include <dt-bindings/reset/qcom,ipq9574-gcc.h>
+#include <dt-bindings/interconnect/qcom,ipq9574.h>
 
 #include "clk-alpha-pll.h"
 #include "clk-branch.h"
@@ -4067,6 +4068,32 @@ static const struct qcom_reset_map gcc_ipq9574_resets[] = {
 	[GCC_WCSS_Q6_TBU_BCR] = { 0x12054, 0 },
 };
 
+#define IPQ_APPS_ID			9574	/* some unique value */
+
+static struct clk_hw *icc_ipq9574_hws[] = {
+	[ICC_ANOC_PCIE0] = &gcc_anoc_pcie0_1lane_m_clk.clkr.hw,
+	[ICC_SNOC_PCIE0] = &gcc_anoc_pcie1_1lane_m_clk.clkr.hw,
+	[ICC_ANOC_PCIE1] = &gcc_anoc_pcie2_2lane_m_clk.clkr.hw,
+	[ICC_SNOC_PCIE1] = &gcc_anoc_pcie3_2lane_m_clk.clkr.hw,
+	[ICC_ANOC_PCIE2] = &gcc_snoc_pcie0_1lane_s_clk.clkr.hw,
+	[ICC_SNOC_PCIE2] = &gcc_snoc_pcie1_1lane_s_clk.clkr.hw,
+	[ICC_ANOC_PCIE3] = &gcc_snoc_pcie2_2lane_s_clk.clkr.hw,
+	[ICC_SNOC_PCIE3] = &gcc_snoc_pcie3_2lane_s_clk.clkr.hw,
+	[ICC_SNOC_USB] = &gcc_snoc_usb_clk.clkr.hw,
+	[ICC_ANOC_USB_AXI] = &gcc_anoc_usb_axi_clk.clkr.hw,
+	[ICC_NSSNOC_NSSCC] = &gcc_nssnoc_nsscc_clk.clkr.hw,
+	[ICC_NSSNOC_SNOC_0] = &gcc_nssnoc_snoc_clk.clkr.hw,
+	[ICC_NSSNOC_SNOC_1] = &gcc_nssnoc_snoc_1_clk.clkr.hw,
+	[ICC_NSSNOC_PCNOC_1] = &gcc_nssnoc_pcnoc_1_clk.clkr.hw,
+	[ICC_NSSNOC_QOSGEN_REF] = &gcc_nssnoc_qosgen_ref_clk.clkr.hw,
+	[ICC_NSSNOC_TIMEOUT_REF] = &gcc_nssnoc_timeout_ref_clk.clkr.hw,
+	[ICC_NSSNOC_XO_DCD] = &gcc_nssnoc_xo_dcd_clk.clkr.hw,
+	[ICC_NSSNOC_ATB] = &gcc_nssnoc_atb_clk.clkr.hw,
+	[ICC_MEM_NOC_NSSNOC] = &gcc_mem_noc_nssnoc_clk.clkr.hw,
+	[ICC_NSSNOC_MEMNOC] = &gcc_nssnoc_memnoc_clk.clkr.hw,
+	[ICC_NSSNOC_MEM_NOC_1] = &gcc_nssnoc_mem_noc_1_clk.clkr.hw,
+};
+
 static const struct of_device_id gcc_ipq9574_match_table[] = {
 	{ .compatible = "qcom,ipq9574-gcc" },
 	{ }
@@ -4089,6 +4116,9 @@ static const struct qcom_cc_desc gcc_ipq9574_desc = {
 	.num_resets = ARRAY_SIZE(gcc_ipq9574_resets),
 	.clk_hws = gcc_ipq9574_hws,
 	.num_clk_hws = ARRAY_SIZE(gcc_ipq9574_hws),
+	.icc_hws = icc_ipq9574_hws,
+	.num_icc_hws = ARRAY_SIZE(icc_ipq9574_hws),
+	.icc_first_node_id = IPQ_APPS_ID,
 };
 
 static int gcc_ipq9574_probe(struct platform_device *pdev)
-- 
2.34.1


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