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authorJohn Crispin <john@phrozen.org>2018-05-24 00:23:16 +0200
committerJohn Crispin <john@phrozen.org>2018-05-24 15:43:39 +0200
commitf7aa08595db07f4c56484b3cef961553b8c09b02 (patch)
tree53883faa1e89dd80872dfb12f2fbd423e5dff922 /target/linux/generic
parent5a6a32ad9bcf108c0d047b147fd80c0e0db75586 (diff)
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kernel: add reset control support to rtl8366 driver
Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'target/linux/generic')
-rw-r--r--target/linux/generic/files/drivers/net/phy/rtl8366_smi.c19
-rw-r--r--target/linux/generic/files/drivers/net/phy/rtl8366_smi.h6
-rw-r--r--target/linux/generic/files/include/linux/rtl8366.h4
3 files changed, 23 insertions, 6 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c b/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
index c21ad9425d..00ad68e0bc 100644
--- a/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
+++ b/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
@@ -319,9 +319,9 @@ EXPORT_SYMBOL_GPL(rtl8366_smi_rmwr);
static int rtl8366_reset(struct rtl8366_smi *smi)
{
if (smi->hw_reset) {
- smi->hw_reset(true);
+ smi->hw_reset(smi, true);
msleep(RTL8366_SMI_HW_STOP_DELAY);
- smi->hw_reset(false);
+ smi->hw_reset(smi, false);
msleep(RTL8366_SMI_HW_START_DELAY);
return 0;
}
@@ -1300,7 +1300,7 @@ static int __rtl8366_smi_init(struct rtl8366_smi *smi, const char *name)
/* start the switch */
if (smi->hw_reset) {
- smi->hw_reset(false);
+ smi->hw_reset(smi, false);
msleep(RTL8366_SMI_HW_START_DELAY);
}
@@ -1315,7 +1315,7 @@ static int __rtl8366_smi_init(struct rtl8366_smi *smi, const char *name)
static void __rtl8366_smi_cleanup(struct rtl8366_smi *smi)
{
if (smi->hw_reset)
- smi->hw_reset(true);
+ smi->hw_reset(smi, true);
gpio_free(smi->gpio_sck);
gpio_free(smi->gpio_sda);
@@ -1425,6 +1425,14 @@ void rtl8366_smi_cleanup(struct rtl8366_smi *smi)
EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup);
#ifdef CONFIG_OF
+static void rtl8366_smi_reset(struct rtl8366_smi *smi, bool active)
+{
+ if (active)
+ reset_control_assert(smi->reset);
+ else
+ reset_control_deassert(smi->reset);
+}
+
int rtl8366_smi_probe_of(struct platform_device *pdev, struct rtl8366_smi *smi)
{
int sck = of_get_named_gpio(pdev->dev.of_node, "gpio-sck", 0);
@@ -1437,6 +1445,9 @@ int rtl8366_smi_probe_of(struct platform_device *pdev, struct rtl8366_smi *smi)
smi->gpio_sda = sda;
smi->gpio_sck = sck;
+ smi->reset = devm_reset_control_get(&pdev->dev, "switch");
+ if (!IS_ERR(smi->reset))
+ smi->hw_reset = rtl8366_smi_reset;
return 0;
}
diff --git a/target/linux/generic/files/drivers/net/phy/rtl8366_smi.h b/target/linux/generic/files/drivers/net/phy/rtl8366_smi.h
index 4bb9e9a66e..e5f34bf9cf 100644
--- a/target/linux/generic/files/drivers/net/phy/rtl8366_smi.h
+++ b/target/linux/generic/files/drivers/net/phy/rtl8366_smi.h
@@ -14,6 +14,7 @@
#include <linux/phy.h>
#include <linux/switch.h>
#include <linux/platform_device.h>
+#include <linux/reset.h>
struct rtl8366_smi_ops;
struct rtl8366_vlan_ops;
@@ -33,7 +34,7 @@ struct rtl8366_smi {
struct device *parent;
unsigned int gpio_sda;
unsigned int gpio_sck;
- void (*hw_reset)(bool active);
+ void (*hw_reset)(struct rtl8366_smi *smi, bool active);
unsigned int clk_delay; /* ns */
u8 cmd_read;
u8 cmd_write;
@@ -54,6 +55,9 @@ struct rtl8366_smi {
int vlan4k_enabled;
char buf[4096];
+
+ struct reset_control *reset;
+
#ifdef CONFIG_RTL8366_SMI_DEBUG_FS
struct dentry *debugfs_root;
u16 dbg_reg;
diff --git a/target/linux/generic/files/include/linux/rtl8366.h b/target/linux/generic/files/include/linux/rtl8366.h
index 78daed2205..e3ce8f5361 100644
--- a/target/linux/generic/files/include/linux/rtl8366.h
+++ b/target/linux/generic/files/include/linux/rtl8366.h
@@ -15,6 +15,8 @@
#define RTL8366S_DRIVER_NAME "rtl8366s"
#define RTL8366RB_DRIVER_NAME "rtl8366rb"
+struct rtl8366_smi;
+
enum rtl8366_type {
RTL8366_TYPE_UNKNOWN,
RTL8366_TYPE_S,
@@ -29,7 +31,7 @@ struct rtl8366_initval {
struct rtl8366_platform_data {
unsigned gpio_sda;
unsigned gpio_sck;
- void (*hw_reset)(bool active);
+ void (*hw_reset)(struct rtl8366_smi *smi, bool active);
unsigned num_initvals;
struct rtl8366_initval *initvals;