clk: qcom: ipq5332: 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.

Remove CLK_IGNORE_UNUSED from gpll4_main as all consumers have
been identified.

Reviewed-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Varadarajan Narayanan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>

Author: quic-varada

drivers/clk/qcom/gcc-ipq5332.c

@@ -4,12 +4,14 @@
  */
 
 #include <linux/clk-provider.h>
+#include <linux/interconnect-provider.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 
 #include <dt-bindings/clock/qcom,ipq5332-gcc.h>
+#include <dt-bindings/interconnect/qcom,ipq5332.h>
 
 #include "clk-alpha-pll.h"
 #include "clk-branch.h"
@@ -126,17 +128,6 @@ static struct clk_alpha_pll gpll4_main = {
 			.parent_data = &gcc_parent_data_xo,
 			.num_parents = 1,
 			.ops = &clk_alpha_pll_stromer_ops,
-			/*
-			 * There are no consumers for this GPLL in kernel yet,
-			 * (will be added soon), so the clock framework
-			 * disables this source. But some of the clocks
-			 * initialized by boot loaders uses this source. So we
-			 * need to keep this clock ON. Add the
-			 * CLK_IGNORE_UNUSED flag so the clock will not be
-			 * disabled. Once the consumer in kernel is added, we
-			 * can get rid of this flag.
-			 */
-			.flags = CLK_IGNORE_UNUSED,
 		},
 	},
 };
@@ -3629,6 +3620,24 @@ static const struct qcom_reset_map gcc_ipq5332_resets[] = {
 	[GCC_UNIPHY1_XPCS_ARES] = { 0x16060 },
 };
 
+#define IPQ_APPS_ID			5332	/* some unique value */
+
+static struct qcom_icc_hws_data icc_ipq5332_hws[] = {
+	{ MASTER_SNOC_PCIE3_1_M, SLAVE_SNOC_PCIE3_1_M, GCC_SNOC_PCIE3_1LANE_M_CLK },
+	{ MASTER_ANOC_PCIE3_1_S, SLAVE_ANOC_PCIE3_1_S, GCC_SNOC_PCIE3_1LANE_S_CLK },
+	{ MASTER_SNOC_PCIE3_2_M, SLAVE_SNOC_PCIE3_2_M, GCC_SNOC_PCIE3_2LANE_M_CLK },
+	{ MASTER_ANOC_PCIE3_2_S, SLAVE_ANOC_PCIE3_2_S, GCC_SNOC_PCIE3_2LANE_S_CLK },
+	{ MASTER_SNOC_USB, SLAVE_SNOC_USB, GCC_SNOC_USB_CLK },
+	{ MASTER_NSSNOC_NSSCC, SLAVE_NSSNOC_NSSCC, GCC_NSSNOC_NSSCC_CLK },
+	{ MASTER_NSSNOC_SNOC_0, SLAVE_NSSNOC_SNOC_0, GCC_NSSNOC_SNOC_CLK },
+	{ MASTER_NSSNOC_SNOC_1, SLAVE_NSSNOC_SNOC_1, GCC_NSSNOC_SNOC_1_CLK },
+	{ MASTER_NSSNOC_ATB, SLAVE_NSSNOC_ATB, GCC_NSSNOC_ATB_CLK },
+	{ MASTER_NSSNOC_PCNOC_1, SLAVE_NSSNOC_PCNOC_1, GCC_NSSNOC_PCNOC_1_CLK },
+	{ MASTER_NSSNOC_QOSGEN_REF, SLAVE_NSSNOC_QOSGEN_REF, GCC_NSSNOC_QOSGEN_REF_CLK },
+	{ MASTER_NSSNOC_TIMEOUT_REF, SLAVE_NSSNOC_TIMEOUT_REF, GCC_NSSNOC_TIMEOUT_REF_CLK },
+	{ MASTER_NSSNOC_XO_DCD, SLAVE_NSSNOC_XO_DCD, GCC_NSSNOC_XO_DCD_CLK },
+};
+
 static const struct regmap_config gcc_ipq5332_regmap_config = {
 	.reg_bits = 32,
 	.reg_stride = 4,
@@ -3657,6 +3666,9 @@ static const struct qcom_cc_desc gcc_ipq5332_desc = {
 	.num_resets = ARRAY_SIZE(gcc_ipq5332_resets),
 	.clk_hws = gcc_ipq5332_hws,
 	.num_clk_hws = ARRAY_SIZE(gcc_ipq5332_hws),
+	.icc_hws = icc_ipq5332_hws,
+	.num_icc_hws = ARRAY_SIZE(icc_ipq5332_hws),
+	.icc_first_node_id = IPQ_APPS_ID,
 };
 
 static int gcc_ipq5332_probe(struct platform_device *pdev)
@@ -3675,6 +3687,7 @@ static struct platform_driver gcc_ipq5332_driver = {
 	.driver = {
 		.name = "gcc-ipq5332",
 		.of_match_table = gcc_ipq5332_match_table,
+		.sync_state = icc_sync_state,
 	},
 };