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Diffstat (limited to 'drivers/soc/imx/gpcv2.c')
-rw-r--r--drivers/soc/imx/gpcv2.c100
1 files changed, 54 insertions, 46 deletions
diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
index 6ef18cf8f243..e7b5994fee9d 100644
--- a/drivers/soc/imx/gpcv2.c
+++ b/drivers/soc/imx/gpcv2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2017 Impinj, Inc
* Author: Andrey Smirnov <andrew.smirnov@gmail.com>
@@ -5,29 +6,23 @@
* Based on the code of analogus driver:
*
* Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
*/
+#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <dt-bindings/power/imx7-power.h>
-#define GPC_LPCR_A7_BSC 0x000
+#define GPC_LPCR_A_CORE_BSC 0x000
#define GPC_PGC_CPU_MAPPING 0x0ec
-#define USB_HSIC_PHY_A7_DOMAIN BIT(6)
-#define USB_OTG2_PHY_A7_DOMAIN BIT(5)
-#define USB_OTG1_PHY_A7_DOMAIN BIT(4)
-#define PCIE_PHY_A7_DOMAIN BIT(3)
-#define MIPI_PHY_A7_DOMAIN BIT(2)
+#define USB_HSIC_PHY_A_CORE_DOMAIN BIT(6)
+#define USB_OTG2_PHY_A_CORE_DOMAIN BIT(5)
+#define USB_OTG1_PHY_A_CORE_DOMAIN BIT(4)
+#define PCIE_PHY_A_CORE_DOMAIN BIT(3)
+#define MIPI_PHY_A_CORE_DOMAIN BIT(2)
#define GPC_PU_PGC_SW_PUP_REQ 0x0f8
#define GPC_PU_PGC_SW_PDN_REQ 0x104
@@ -53,7 +48,7 @@
#define GPC_PGC_CTRL_PCR BIT(0)
-struct imx7_pgc_domain {
+struct imx_pgc_domain {
struct generic_pm_domain genpd;
struct regmap *regmap;
struct regulator *regulator;
@@ -69,11 +64,16 @@ struct imx7_pgc_domain {
struct device *dev;
};
-static int imx7_gpc_pu_pgc_sw_pxx_req(struct generic_pm_domain *genpd,
+struct imx_pgc_domain_data {
+ const struct imx_pgc_domain *domains;
+ size_t domains_num;
+};
+
+static int imx_gpc_pu_pgc_sw_pxx_req(struct generic_pm_domain *genpd,
bool on)
{
- struct imx7_pgc_domain *domain = container_of(genpd,
- struct imx7_pgc_domain,
+ struct imx_pgc_domain *domain = container_of(genpd,
+ struct imx_pgc_domain,
genpd);
unsigned int offset = on ?
GPC_PU_PGC_SW_PUP_REQ : GPC_PU_PGC_SW_PDN_REQ;
@@ -150,24 +150,24 @@ unmap:
return ret;
}
-static int imx7_gpc_pu_pgc_sw_pup_req(struct generic_pm_domain *genpd)
+static int imx_gpc_pu_pgc_sw_pup_req(struct generic_pm_domain *genpd)
{
- return imx7_gpc_pu_pgc_sw_pxx_req(genpd, true);
+ return imx_gpc_pu_pgc_sw_pxx_req(genpd, true);
}
-static int imx7_gpc_pu_pgc_sw_pdn_req(struct generic_pm_domain *genpd)
+static int imx_gpc_pu_pgc_sw_pdn_req(struct generic_pm_domain *genpd)
{
- return imx7_gpc_pu_pgc_sw_pxx_req(genpd, false);
+ return imx_gpc_pu_pgc_sw_pxx_req(genpd, false);
}
-static const struct imx7_pgc_domain imx7_pgc_domains[] = {
+static const struct imx_pgc_domain imx7_pgc_domains[] = {
[IMX7_POWER_DOMAIN_MIPI_PHY] = {
.genpd = {
.name = "mipi-phy",
},
.bits = {
.pxx = MIPI_PHY_SW_Pxx_REQ,
- .map = MIPI_PHY_A7_DOMAIN,
+ .map = MIPI_PHY_A_CORE_DOMAIN,
},
.voltage = 1000000,
.pgc = PGC_MIPI,
@@ -179,7 +179,7 @@ static const struct imx7_pgc_domain imx7_pgc_domains[] = {
},
.bits = {
.pxx = PCIE_PHY_SW_Pxx_REQ,
- .map = PCIE_PHY_A7_DOMAIN,
+ .map = PCIE_PHY_A_CORE_DOMAIN,
},
.voltage = 1000000,
.pgc = PGC_PCIE,
@@ -191,16 +191,21 @@ static const struct imx7_pgc_domain imx7_pgc_domains[] = {
},
.bits = {
.pxx = USB_HSIC_PHY_SW_Pxx_REQ,
- .map = USB_HSIC_PHY_A7_DOMAIN,
+ .map = USB_HSIC_PHY_A_CORE_DOMAIN,
},
.voltage = 1200000,
.pgc = PGC_USB_HSIC,
},
};
-static int imx7_pgc_domain_probe(struct platform_device *pdev)
+static const struct imx_pgc_domain_data imx7_pgc_domain_data = {
+ .domains = imx7_pgc_domains,
+ .domains_num = ARRAY_SIZE(imx7_pgc_domains),
+};
+
+static int imx_pgc_domain_probe(struct platform_device *pdev)
{
- struct imx7_pgc_domain *domain = pdev->dev.platform_data;
+ struct imx_pgc_domain *domain = pdev->dev.platform_data;
int ret;
domain->dev = &pdev->dev;
@@ -233,9 +238,9 @@ static int imx7_pgc_domain_probe(struct platform_device *pdev)
return ret;
}
-static int imx7_pgc_domain_remove(struct platform_device *pdev)
+static int imx_pgc_domain_remove(struct platform_device *pdev)
{
- struct imx7_pgc_domain *domain = pdev->dev.platform_data;
+ struct imx_pgc_domain *domain = pdev->dev.platform_data;
of_genpd_del_provider(domain->dev->of_node);
pm_genpd_remove(&domain->genpd);
@@ -243,25 +248,26 @@ static int imx7_pgc_domain_remove(struct platform_device *pdev)
return 0;
}
-static const struct platform_device_id imx7_pgc_domain_id[] = {
- { "imx7-pgc-domain", },
+static const struct platform_device_id imx_pgc_domain_id[] = {
+ { "imx-pgc-domain", },
{ },
};
-static struct platform_driver imx7_pgc_domain_driver = {
+static struct platform_driver imx_pgc_domain_driver = {
.driver = {
- .name = "imx7-pgc",
+ .name = "imx-pgc",
},
- .probe = imx7_pgc_domain_probe,
- .remove = imx7_pgc_domain_remove,
- .id_table = imx7_pgc_domain_id,
+ .probe = imx_pgc_domain_probe,
+ .remove = imx_pgc_domain_remove,
+ .id_table = imx_pgc_domain_id,
};
-builtin_platform_driver(imx7_pgc_domain_driver)
+builtin_platform_driver(imx_pgc_domain_driver)
static int imx_gpcv2_probe(struct platform_device *pdev)
{
+ static const struct imx_pgc_domain_data *domain_data;
static const struct regmap_range yes_ranges[] = {
- regmap_reg_range(GPC_LPCR_A7_BSC,
+ regmap_reg_range(GPC_LPCR_A_CORE_BSC,
GPC_M4_PU_PDN_FLG),
regmap_reg_range(GPC_PGC_CTRL(PGC_MIPI),
GPC_PGC_SR(PGC_MIPI)),
@@ -307,9 +313,11 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
return ret;
}
+ domain_data = of_device_get_match_data(&pdev->dev);
+
for_each_child_of_node(pgc_np, np) {
struct platform_device *pd_pdev;
- struct imx7_pgc_domain *domain;
+ struct imx_pgc_domain *domain;
u32 domain_index;
ret = of_property_read_u32(np, "reg", &domain_index);
@@ -319,14 +327,14 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
return ret;
}
- if (domain_index >= ARRAY_SIZE(imx7_pgc_domains)) {
+ if (domain_index >= domain_data->domains_num) {
dev_warn(dev,
"Domain index %d is out of bounds\n",
domain_index);
continue;
}
- pd_pdev = platform_device_alloc("imx7-pgc-domain",
+ pd_pdev = platform_device_alloc("imx-pgc-domain",
domain_index);
if (!pd_pdev) {
dev_err(dev, "Failed to allocate platform device\n");
@@ -335,8 +343,8 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
}
ret = platform_device_add_data(pd_pdev,
- &imx7_pgc_domains[domain_index],
- sizeof(imx7_pgc_domains[domain_index]));
+ &domain_data->domains[domain_index],
+ sizeof(domain_data->domains[domain_index]));
if (ret) {
platform_device_put(pd_pdev);
of_node_put(np);
@@ -345,8 +353,8 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
domain = pd_pdev->dev.platform_data;
domain->regmap = regmap;
- domain->genpd.power_on = imx7_gpc_pu_pgc_sw_pup_req;
- domain->genpd.power_off = imx7_gpc_pu_pgc_sw_pdn_req;
+ domain->genpd.power_on = imx_gpc_pu_pgc_sw_pup_req;
+ domain->genpd.power_off = imx_gpc_pu_pgc_sw_pdn_req;
pd_pdev->dev.parent = dev;
pd_pdev->dev.of_node = np;
@@ -363,7 +371,7 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
}
static const struct of_device_id imx_gpcv2_dt_ids[] = {
- { .compatible = "fsl,imx7d-gpc" },
+ { .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
{ }
};
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