summaryrefslogtreecommitdiff
path: root/drivers/net/wwan/t7xx/t7xx_pci.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wwan/t7xx/t7xx_pci.c')
-rw-r--r--drivers/net/wwan/t7xx/t7xx_pci.c138
1 files changed, 113 insertions, 25 deletions
diff --git a/drivers/net/wwan/t7xx/t7xx_pci.c b/drivers/net/wwan/t7xx/t7xx_pci.c
index e0b1e7a616ca..8bf63f2dcbbf 100644
--- a/drivers/net/wwan/t7xx/t7xx_pci.c
+++ b/drivers/net/wwan/t7xx/t7xx_pci.c
@@ -32,7 +32,6 @@
#include <linux/pci.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
-#include <linux/pm_wakeup.h>
#include <linux/spinlock.h>
#include "t7xx_mhccif.h"
@@ -41,6 +40,9 @@
#include "t7xx_pcie_mac.h"
#include "t7xx_reg.h"
#include "t7xx_state_monitor.h"
+#include "t7xx_port_proxy.h"
+
+#define DRIVER_NAME "mtk_t7xx"
#define T7XX_PCI_IREG_BASE 0
#define T7XX_PCI_EREG_BASE 2
@@ -48,7 +50,7 @@
#define T7XX_INIT_TIMEOUT 20
#define PM_SLEEP_DIS_TIMEOUT_MS 20
#define PM_ACK_TIMEOUT_MS 1500
-#define PM_AUTOSUSPEND_MS 20000
+#define PM_AUTOSUSPEND_MS 5000
#define PM_RESOURCE_POLL_TIMEOUT_US 10000
#define PM_RESOURCE_POLL_STEP_US 100
@@ -69,6 +71,7 @@ static ssize_t t7xx_mode_store(struct device *dev,
{
struct t7xx_pci_dev *t7xx_dev;
struct pci_dev *pdev;
+ enum t7xx_mode mode;
int index = 0;
pdev = to_pci_dev(dev);
@@ -76,12 +79,22 @@ static ssize_t t7xx_mode_store(struct device *dev,
if (!t7xx_dev)
return -ENODEV;
+ mode = READ_ONCE(t7xx_dev->mode);
+
index = sysfs_match_string(t7xx_mode_names, buf);
+ if (index == mode)
+ return -EBUSY;
+
if (index == T7XX_FASTBOOT_SWITCHING) {
+ if (mode == T7XX_FASTBOOT_DOWNLOAD)
+ return count;
+
WRITE_ONCE(t7xx_dev->mode, T7XX_FASTBOOT_SWITCHING);
+ pm_runtime_resume(dev);
+ t7xx_reset_device(t7xx_dev, FASTBOOT);
} else if (index == T7XX_RESET) {
- WRITE_ONCE(t7xx_dev->mode, T7XX_RESET);
- t7xx_acpi_pldr_func(t7xx_dev);
+ pm_runtime_resume(dev);
+ t7xx_reset_device(t7xx_dev, PLDR);
}
return count;
@@ -109,13 +122,58 @@ static ssize_t t7xx_mode_show(struct device *dev,
static DEVICE_ATTR_RW(t7xx_mode);
-static struct attribute *t7xx_mode_attr[] = {
+static ssize_t t7xx_debug_ports_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct t7xx_pci_dev *t7xx_dev;
+ struct pci_dev *pdev;
+ bool show;
+ int ret;
+
+ pdev = to_pci_dev(dev);
+ t7xx_dev = pci_get_drvdata(pdev);
+ if (!t7xx_dev)
+ return -ENODEV;
+
+ ret = kstrtobool(buf, &show);
+ if (ret < 0)
+ return ret;
+
+ t7xx_proxy_debug_ports_show(t7xx_dev, show);
+ WRITE_ONCE(t7xx_dev->debug_ports_show, show);
+
+ return count;
+};
+
+static ssize_t t7xx_debug_ports_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct t7xx_pci_dev *t7xx_dev;
+ struct pci_dev *pdev;
+ bool show;
+
+ pdev = to_pci_dev(dev);
+ t7xx_dev = pci_get_drvdata(pdev);
+ if (!t7xx_dev)
+ return -ENODEV;
+
+ show = READ_ONCE(t7xx_dev->debug_ports_show);
+
+ return sysfs_emit(buf, "%d\n", show);
+}
+
+static DEVICE_ATTR_RW(t7xx_debug_ports);
+
+static struct attribute *t7xx_attr[] = {
&dev_attr_t7xx_mode.attr,
+ &dev_attr_t7xx_debug_ports.attr,
NULL
};
-static const struct attribute_group t7xx_mode_attribute_group = {
- .attrs = t7xx_mode_attr,
+static const struct attribute_group t7xx_attribute_group = {
+ .attrs = t7xx_attr,
};
void t7xx_mode_update(struct t7xx_pci_dev *t7xx_dev, enum t7xx_mode mode)
@@ -446,7 +504,7 @@ static int t7xx_pcie_reinit(struct t7xx_pci_dev *t7xx_dev, bool is_d3)
if (is_d3) {
t7xx_mhccif_init(t7xx_dev);
- return t7xx_pci_pm_reinit(t7xx_dev);
+ t7xx_pci_pm_reinit(t7xx_dev);
}
return 0;
@@ -481,6 +539,33 @@ static int t7xx_send_fsm_command(struct t7xx_pci_dev *t7xx_dev, u32 event)
return ret;
}
+int t7xx_pci_reprobe_early(struct t7xx_pci_dev *t7xx_dev)
+{
+ enum t7xx_mode mode = READ_ONCE(t7xx_dev->mode);
+ int ret;
+
+ if (mode == T7XX_FASTBOOT_DOWNLOAD)
+ pm_runtime_put_noidle(&t7xx_dev->pdev->dev);
+
+ ret = t7xx_send_fsm_command(t7xx_dev, FSM_CMD_STOP);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+int t7xx_pci_reprobe(struct t7xx_pci_dev *t7xx_dev, bool boot)
+{
+ int ret;
+
+ ret = t7xx_pcie_reinit(t7xx_dev, boot);
+ if (ret)
+ return ret;
+
+ t7xx_clear_rgu_irq(t7xx_dev);
+ return t7xx_send_fsm_command(t7xx_dev, FSM_CMD_START);
+}
+
static int __t7xx_pci_pm_resume(struct pci_dev *pdev, bool state_check)
{
struct t7xx_pci_dev *t7xx_dev;
@@ -507,16 +592,11 @@ static int __t7xx_pci_pm_resume(struct pci_dev *pdev, bool state_check)
if (prev_state == PM_RESUME_REG_STATE_L3 ||
(prev_state == PM_RESUME_REG_STATE_INIT &&
atr_reg_val == ATR_SRC_ADDR_INVALID)) {
- ret = t7xx_send_fsm_command(t7xx_dev, FSM_CMD_STOP);
+ ret = t7xx_pci_reprobe_early(t7xx_dev);
if (ret)
return ret;
- ret = t7xx_pcie_reinit(t7xx_dev, true);
- if (ret)
- return ret;
-
- t7xx_clear_rgu_irq(t7xx_dev);
- return t7xx_send_fsm_command(t7xx_dev, FSM_CMD_START);
+ return t7xx_pci_reprobe(t7xx_dev, true);
}
if (prev_state == PM_RESUME_REG_STATE_EXP ||
@@ -754,6 +834,7 @@ static void t7xx_pci_infracfg_ao_calc(struct t7xx_pci_dev *t7xx_dev)
static int t7xx_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct t7xx_pci_dev *t7xx_dev;
+ void __iomem *iomem;
int ret;
t7xx_dev = devm_kzalloc(&pdev->dev, sizeof(*t7xx_dev), GFP_KERNEL);
@@ -769,12 +850,21 @@ static int t7xx_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
pci_set_master(pdev);
- ret = pcim_iomap_regions(pdev, BIT(T7XX_PCI_IREG_BASE) | BIT(T7XX_PCI_EREG_BASE),
- pci_name(pdev));
+ iomem = pcim_iomap_region(pdev, T7XX_PCI_IREG_BASE, DRIVER_NAME);
+ ret = PTR_ERR_OR_ZERO(iomem);
if (ret) {
- dev_err(&pdev->dev, "Could not request BARs: %d\n", ret);
+ dev_err(&pdev->dev, "Could not request IREG BAR: %d\n", ret);
return -ENOMEM;
}
+ IREG_BASE(t7xx_dev) = iomem;
+
+ iomem = pcim_iomap_region(pdev, T7XX_PCI_EREG_BASE, DRIVER_NAME);
+ ret = PTR_ERR_OR_ZERO(iomem);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not request EREG BAR: %d\n", ret);
+ return -ENOMEM;
+ }
+ t7xx_dev->base_addr.pcie_ext_reg_base = iomem;
ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
if (ret) {
@@ -788,9 +878,6 @@ static int t7xx_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return ret;
}
- IREG_BASE(t7xx_dev) = pcim_iomap_table(pdev)[T7XX_PCI_IREG_BASE];
- t7xx_dev->base_addr.pcie_ext_reg_base = pcim_iomap_table(pdev)[T7XX_PCI_EREG_BASE];
-
ret = t7xx_pci_pm_init(t7xx_dev);
if (ret)
return ret;
@@ -806,7 +893,7 @@ static int t7xx_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
t7xx_pcie_mac_interrupts_dis(t7xx_dev);
ret = sysfs_create_group(&t7xx_dev->pdev->dev.kobj,
- &t7xx_mode_attribute_group);
+ &t7xx_attribute_group);
if (ret)
goto err_md_exit;
@@ -822,7 +909,7 @@ static int t7xx_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
err_remove_group:
sysfs_remove_group(&t7xx_dev->pdev->dev.kobj,
- &t7xx_mode_attribute_group);
+ &t7xx_attribute_group);
err_md_exit:
t7xx_md_exit(t7xx_dev);
@@ -837,7 +924,7 @@ static void t7xx_pci_remove(struct pci_dev *pdev)
t7xx_dev = pci_get_drvdata(pdev);
sysfs_remove_group(&t7xx_dev->pdev->dev.kobj,
- &t7xx_mode_attribute_group);
+ &t7xx_attribute_group);
t7xx_md_exit(t7xx_dev);
for (i = 0; i < EXT_INT_NUM; i++) {
@@ -852,12 +939,13 @@ static void t7xx_pci_remove(struct pci_dev *pdev)
static const struct pci_device_id t7xx_pci_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x4d75) },
+ { PCI_DEVICE(0x14c0, 0x4d75) }, // Dell DW5933e
{ }
};
MODULE_DEVICE_TABLE(pci, t7xx_pci_table);
static struct pci_driver t7xx_pci_driver = {
- .name = "mtk_t7xx",
+ .name = DRIVER_NAME,
.id_table = t7xx_pci_table,
.probe = t7xx_pci_probe,
.remove = t7xx_pci_remove,
generated by cgit (git 2.34.1) at 2025-07-23 07:11:23 +0000