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Subject[PATCH 5/8] soc: imx: add icc paths for i.MX8MP hsio/hdmi blk ctrl
Date
From: Peng Fan <peng.fan@nxp.com>

Add interconnect paths for i.MX8MP hsio/hdmi blk ctrl

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
drivers/soc/imx/imx8mp-blk-ctrl.c | 32 +++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)

diff --git a/drivers/soc/imx/imx8mp-blk-ctrl.c b/drivers/soc/imx/imx8mp-blk-ctrl.c
index 69191d7a2f54..9d1040f47b0c 100644
--- a/drivers/soc/imx/imx8mp-blk-ctrl.c
+++ b/drivers/soc/imx/imx8mp-blk-ctrl.c
@@ -6,6 +6,7 @@

#include <linux/clk.h>
#include <linux/device.h>
+#include <linux/interconnect.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
@@ -36,15 +37,19 @@ struct imx8mp_blk_ctrl_domain_data {
const char *name;
const char * const *clk_names;
int num_clks;
+ const char * const *path_names;
+ int num_paths;
const char *gpc_name;
};

#define DOMAIN_MAX_CLKS 2
+#define DOMAIN_MAX_PATHS 3

struct imx8mp_blk_ctrl_domain {
struct generic_pm_domain genpd;
const struct imx8mp_blk_ctrl_domain_data *data;
struct clk_bulk_data clks[DOMAIN_MAX_CLKS];
+ struct icc_bulk_data paths[DOMAIN_MAX_PATHS];
struct device *power_dev;
struct imx8mp_blk_ctrl *bc;
int id;
@@ -144,6 +149,8 @@ static const struct imx8mp_blk_ctrl_domain_data imx8mp_hsio_domain_data[] = {
.clk_names = (const char *[]){ "usb" },
.num_clks = 1,
.gpc_name = "usb",
+ .path_names = (const char *[]){"usb1", "usb2"},
+ .num_paths = 2,
},
[IMX8MP_HSIOBLK_PD_USB_PHY1] = {
.name = "hsioblk-usb-phy1",
@@ -158,6 +165,8 @@ static const struct imx8mp_blk_ctrl_domain_data imx8mp_hsio_domain_data[] = {
.clk_names = (const char *[]){ "pcie" },
.num_clks = 1,
.gpc_name = "pcie",
+ .path_names = (const char *[]){"noc-pcie", "pcie"},
+ .num_paths = 2,
},
[IMX8MP_HSIOBLK_PD_PCIE_PHY] = {
.name = "hsioblk-pcie-phy",
@@ -336,6 +345,8 @@ static const struct imx8mp_blk_ctrl_domain_data imx8mp_hdmi_domain_data[] = {
.clk_names = (const char *[]){ "axi", "apb" },
.num_clks = 2,
.gpc_name = "lcdif",
+ .path_names = (const char *[]){"lcdif-hdmi"},
+ .num_paths = 1,
},
[IMX8MP_HDMIBLK_PD_PAI] = {
.name = "hdmiblk-pai",
@@ -372,12 +383,16 @@ static const struct imx8mp_blk_ctrl_domain_data imx8mp_hdmi_domain_data[] = {
.clk_names = (const char *[]){ "axi", "apb" },
.num_clks = 2,
.gpc_name = "hrv",
+ .path_names = (const char *[]){"hrv"},
+ .num_paths = 1,
},
[IMX8MP_HDMIBLK_PD_HDCP] = {
.name = "hdmiblk-hdcp",
.clk_names = (const char *[]){ "axi", "apb" },
.num_clks = 2,
.gpc_name = "hdcp",
+ .path_names = (const char *[]){"hdcp"},
+ .num_paths = 1,
},
};

@@ -421,6 +436,10 @@ static int imx8mp_blk_ctrl_power_on(struct generic_pm_domain *genpd)
goto clk_disable;
}

+ ret = icc_bulk_set_bw(data->num_paths, domain->paths);
+ if (ret)
+ dev_err(bc->dev, "failed to set icc bw\n");
+
clk_bulk_disable_unprepare(data->num_clks, domain->clks);

return 0;
@@ -540,6 +559,19 @@ static int imx8mp_blk_ctrl_probe(struct platform_device *pdev)
for (j = 0; j < data->num_clks; j++)
domain->clks[j].id = data->clk_names[j];

+ for (j = 0; j < data->num_paths; j++) {
+ domain->paths[j].name = data->path_names[j];
+ domain->paths[j].avg_bw = INT_MAX;
+ domain->paths[j].peak_bw = INT_MAX;
+ }
+
+ ret = devm_of_icc_bulk_get(dev, data->num_paths, domain->paths);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to get noc entries\n");
+ goto cleanup_pds;
+ }
+
+
ret = devm_clk_bulk_get(dev, data->num_clks, domain->clks);
if (ret) {
dev_err_probe(dev, ret, "failed to get clock\n");
--
2.25.1
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