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kernel: add reset control support to rtl8366 driver

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Signed-off-by: John Crispin <john@phrozen.org>
This commit is contained in:
John Crispin
2018-05-24 00:23:16 +02:00
parent 5a6a32ad9b
commit f7aa08595d
4 changed files with 25 additions and 8 deletions
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19
target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
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@@ -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;
}