[PATCH net-next v2 0/5] net: pch: fix and a few cleanups

The series provides one fix (patch 1) for GPIO to be able to wait for
the GPIO driver to appear. This is separated from the conversion to
the GPIO descriptors (patch 2) in order to have a possibility for
backporting. Patches 3 and 4 fix a minor warnings from Sparse while
moving to a new APIs. Patch 5 is MODULE_VERSION() clean up.

Tested on Intel Minnowboard (v1).

Since v2:
- added a few cleanups on top of the fix

Andy Shevchenko (5):
  net: pch_gbe: Propagate error from devm_gpio_request_one()
  net: pch_gbe: Convert to use GPIO descriptors
  net: pch_gbe: use readx_poll_timeout_atomic() variant
  net: pch_gbe: Use proper accessors to BE data in pch_ptp_match()
  net: pch_gbe: remove unneeded MODULE_VERSION() call

 .../net/ethernet/oki-semi/pch_gbe/pch_gbe.h   |   2 -
 .../oki-semi/pch_gbe/pch_gbe_ethtool.c        |   2 +
 .../ethernet/oki-semi/pch_gbe/pch_gbe_main.c  | 103 +++++++++---------
 3 files changed, 54 insertions(+), 53 deletions(-)

-- 
2.30.2

If GPIO controller is not available yet we need to defer
the probe of GBE until provider will become available.

While here, drop GPIOF_EXPORT because it's deprecated and
may not be available.

Fixes: f1a26fdf5944 ("pch_gbe: Add MinnowBoard support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 140cee7c459d..1b32a43f7024 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c

@@ -2531,9 +2531,13 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 	adapter->pdev = pdev;
 	adapter->hw.back = adapter;
 	adapter->hw.reg = pcim_iomap_table(pdev)[PCH_GBE_PCI_BAR];
+
 	adapter->pdata = (struct pch_gbe_privdata *)pci_id->driver_data;
-	if (adapter->pdata && adapter->pdata->platform_init)
-		adapter->pdata->platform_init(pdev);
+	if (adapter->pdata && adapter->pdata->platform_init) {
+		ret = adapter->pdata->platform_init(pdev);
+		if (ret)
+			goto err_free_netdev;
+	}
 
 	adapter->ptp_pdev =
 		pci_get_domain_bus_and_slot(pci_domain_nr(adapter->pdev->bus),

@@ -2628,7 +2632,7 @@ static int pch_gbe_probe(struct pci_dev *pdev,
  */
 static int pch_gbe_minnow_platform_init(struct pci_dev *pdev)
 {
-	unsigned long flags = GPIOF_DIR_OUT | GPIOF_INIT_HIGH | GPIOF_EXPORT;
+	unsigned long flags = GPIOF_OUT_INIT_HIGH;
 	unsigned gpio = MINNOW_PHY_RESET_GPIO;
 	int ret;
 

-- 
2.30.2

This switches the PCH GBE driver to use GPIO descriptors.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 .../ethernet/oki-semi/pch_gbe/pch_gbe_main.c  | 45 +++++++++++++------
 1 file changed, 32 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 1b32a43f7024..1038947cbac8 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c

@@ -8,10 +8,12 @@
 
 #include "pch_gbe.h"
 #include "pch_gbe_phy.h"
+
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/machine.h>
 #include <linux/module.h>
 #include <linux/net_tstamp.h>
 #include <linux/ptp_classify.h>
-#include <linux/gpio.h>
 
 #define DRV_VERSION     "1.01"
 const char pch_driver_version[] = DRV_VERSION;

@@ -96,8 +98,6 @@ const char pch_driver_version[] = DRV_VERSION;
 #define PTP_L4_MULTICAST_SA "01:00:5e:00:01:81"
 #define PTP_L2_MULTICAST_SA "01:1b:19:00:00:00"
 
-#define MINNOW_PHY_RESET_GPIO		13
-
 static int pch_gbe_mdio_read(struct net_device *netdev, int addr, int reg);
 static void pch_gbe_mdio_write(struct net_device *netdev, int addr, int reg,
 			       int data);

@@ -2627,26 +2627,45 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 	return ret;
 }
 
+static void pch_gbe_gpio_remove_table(void *table)
+{
+	gpiod_remove_lookup_table(table);
+}
+
+static int pch_gbe_gpio_add_table(struct device *dev, void *table)
+{
+	gpiod_add_lookup_table(table);
+	return devm_add_action_or_reset(dev, pch_gbe_gpio_remove_table, table);
+}
+
+static struct gpiod_lookup_table pch_gbe_minnow_gpio_table = {
+	.dev_id		= "0000:02:00.1",
+	.table		= {
+		GPIO_LOOKUP("sch_gpio.33158", 13, NULL, GPIO_ACTIVE_LOW),
+		{}
+	},
+};
+
 /* The AR803X PHY on the MinnowBoard requires a physical pin to be toggled to
  * ensure it is awake for probe and init. Request the line and reset the PHY.
  */
 static int pch_gbe_minnow_platform_init(struct pci_dev *pdev)
 {
-	unsigned long flags = GPIOF_OUT_INIT_HIGH;
-	unsigned gpio = MINNOW_PHY_RESET_GPIO;
+	struct gpio_desc *gpiod;
 	int ret;
 
-	ret = devm_gpio_request_one(&pdev->dev, gpio, flags,
-				    "minnow_phy_reset");
-	if (ret) {
-		dev_err(&pdev->dev,
-			"ERR: Can't request PHY reset GPIO line '%d'\n", gpio);
+	ret = pch_gbe_gpio_add_table(&pdev->dev, &pch_gbe_minnow_gpio_table);
+	if (ret)
 		return ret;
-	}
 
-	gpio_set_value(gpio, 0);
+	gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_OUT_HIGH);
+	if (IS_ERR(gpiod))
+		return dev_err_probe(&pdev->dev, PTR_ERR(gpiod),
+				     "Can't request PHY reset GPIO line\n");
+
+	gpiod_set_value(gpiod, 1);
 	usleep_range(1250, 1500);
-	gpio_set_value(gpio, 1);
+	gpiod_set_value(gpiod, 0);
 	usleep_range(1250, 1500);
 
 	return ret;

-- 
2.30.2

Use readx_poll_timeout_atomic() instead of open coded variants.

While at it, add __iomem attribute to the parameter of pch_gbe_wait_clr_bit().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 .../ethernet/oki-semi/pch_gbe/pch_gbe_main.c  | 27 ++++++-------------
 1 file changed, 8 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 1038947cbac8..91de7faa6dfe 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c

@@ -11,6 +11,7 @@
 
 #include <linux/gpio/consumer.h>
 #include <linux/gpio/machine.h>
+#include <linux/iopoll.h>
 #include <linux/module.h>
 #include <linux/net_tstamp.h>
 #include <linux/ptp_classify.h>

@@ -297,15 +298,12 @@ static s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw)
  * @reg:	Pointer of register
  * @bit:	Busy bit
  */
-static void pch_gbe_wait_clr_bit(void *reg, u32 bit)
+static void pch_gbe_wait_clr_bit(void __iomem *reg, u32 bit)
 {
 	u32 tmp;
 
 	/* wait busy */
-	tmp = 1000;
-	while ((ioread32(reg) & bit) && --tmp)
-		cpu_relax();
-	if (!tmp)
+	if (readx_poll_timeout_atomic(ioread32, reg, tmp, !(tmp & bit), 0, 10))
 		pr_err("Error: busy bit is not cleared\n");
 }
 

@@ -489,18 +487,13 @@ u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
 			u16 data)
 {
 	struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
-	u32 data_out = 0;
-	unsigned int i;
 	unsigned long flags;
+	u32 data_out;
 
 	spin_lock_irqsave(&hw->miim_lock, flags);
 
-	for (i = 100; i; --i) {
-		if ((ioread32(&hw->reg->MIIM) & PCH_GBE_MIIM_OPER_READY))
-			break;
-		udelay(20);
-	}
-	if (i == 0) {
+	if (readx_poll_timeout_atomic(ioread32, &hw->reg->MIIM, data_out,
+				      data_out & PCH_GBE_MIIM_OPER_READY, 20, 2000)) {
 		netdev_err(adapter->netdev, "pch-gbe.miim won't go Ready\n");
 		spin_unlock_irqrestore(&hw->miim_lock, flags);
 		return 0;	/* No way to indicate timeout error */

@@ -508,12 +501,8 @@ u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
 	iowrite32(((reg << PCH_GBE_MIIM_REG_ADDR_SHIFT) |
 		  (addr << PCH_GBE_MIIM_PHY_ADDR_SHIFT) |
 		  dir | data), &hw->reg->MIIM);
-	for (i = 0; i < 100; i++) {
-		udelay(20);
-		data_out = ioread32(&hw->reg->MIIM);
-		if ((data_out & PCH_GBE_MIIM_OPER_READY))
-			break;
-	}
+	readx_poll_timeout_atomic(ioread32, &hw->reg->MIIM, data_out,
+				  data_out & PCH_GBE_MIIM_OPER_READY, 20, 2000);
 	spin_unlock_irqrestore(&hw->miim_lock, flags);
 
 	netdev_dbg(adapter->netdev, "PHY %s: reg=%d, data=0x%04X\n",

-- 
2.30.2

Remove MODULE_VERSION(), as it doesn't seem to serve any practical purpose.
For in-tree drivers, the kernel version matters. The code received lots of
changes, but module version remained constant, since the driver landed in
mainline. So, this version doesn't seem have any practical meaning anymore.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h         | 2 --
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c | 2 ++
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c    | 4 ----
 3 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h
index 55cef5b16aa5..0a89117a8fb4 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h

@@ -596,8 +596,6 @@ struct pch_gbe_adapter {
 
 #define pch_gbe_hw_to_adapter(hw)	container_of(hw, struct pch_gbe_adapter, hw)
 
-extern const char pch_driver_version[];
-
 /* pch_gbe_main.c */
 int pch_gbe_up(struct pch_gbe_adapter *adapter);
 void pch_gbe_down(struct pch_gbe_adapter *adapter);

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
index a58f14aca10c..660b07cb5b92 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c

@@ -8,6 +8,8 @@
 #include "pch_gbe.h"
 #include "pch_gbe_phy.h"
 
+static const char pch_driver_version[] = "1.01";
+
 /*
  * pch_gbe_stats - Stats item information
  */

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index b54e73c57d65..0c5c4fefc8af 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c

@@ -16,9 +16,6 @@
 #include <linux/net_tstamp.h>
 #include <linux/ptp_classify.h>
 
-#define DRV_VERSION     "1.01"
-const char pch_driver_version[] = DRV_VERSION;
-
 #define PCH_GBE_MAR_ENTRIES		16
 #define PCH_GBE_SHORT_PKT		64
 #define DSC_INIT16			0xC000

@@ -2726,7 +2723,6 @@ module_pci_driver(pch_gbe_driver);
 MODULE_DESCRIPTION("EG20T PCH Gigabit ethernet Driver");
 MODULE_AUTHOR("LAPIS SEMICONDUCTOR, <tshimizu818@gmail.com>");
 MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
 MODULE_DEVICE_TABLE(pci, pch_gbe_pcidev_id);
 
 /* pch_gbe_main.c */

-- 
2.30.2

Sparse is not happy about handling of strict types in pch_ptp_match():

  .../pch_gbe_main.c:158:33: warning: incorrect type in argument 2 (different base types)
  .../pch_gbe_main.c:158:33:    expected unsigned short [usertype] uid_hi
  .../pch_gbe_main.c:158:33:    got restricted __be16 [usertype]
  .../pch_gbe_main.c:158:45: warning: incorrect type in argument 3 (different base types)
  .../pch_gbe_main.c:158:45:    expected unsigned int [usertype] uid_lo
  .../pch_gbe_main.c:158:45:    got restricted __be32 [usertype]
  .../pch_gbe_main.c:158:56: warning: incorrect type in argument 4 (different base types)
  .../pch_gbe_main.c:158:56:    expected unsigned short [usertype] seqid
  .../pch_gbe_main.c:158:56:    got restricted __be16 [usertype]

Fix that by switching to use proper accessors to BE data.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 .../ethernet/oki-semi/pch_gbe/pch_gbe_main.c  | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 91de7faa6dfe..b54e73c57d65 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c

@@ -108,7 +108,7 @@ static int pch_ptp_match(struct sk_buff *skb, u16 uid_hi, u32 uid_lo, u16 seqid)
 {
 	u8 *data = skb->data;
 	unsigned int offset;
-	u16 *hi, *id;
+	u16 hi, id;
 	u32 lo;
 
 	if (ptp_classify_raw(skb) == PTP_CLASS_NONE)

@@ -119,14 +119,11 @@ static int pch_ptp_match(struct sk_buff *skb, u16 uid_hi, u32 uid_lo, u16 seqid)
 	if (skb->len < offset + OFF_PTP_SEQUENCE_ID + sizeof(seqid))
 		return 0;
 
-	hi = (u16 *)(data + offset + OFF_PTP_SOURCE_UUID);
-	id = (u16 *)(data + offset + OFF_PTP_SEQUENCE_ID);
+	hi = get_unaligned_be16(data + offset + OFF_PTP_SOURCE_UUID + 0);
+	lo = get_unaligned_be32(data + offset + OFF_PTP_SOURCE_UUID + 2);
+	id = get_unaligned_be16(data + offset + OFF_PTP_SEQUENCE_ID);
 
-	memcpy(&lo, &hi[1], sizeof(lo));
-
-	return (uid_hi == *hi &&
-		uid_lo == lo &&
-		seqid  == *id);
+	return (uid_hi == hi && uid_lo == lo && seqid == id);
 }
 
 static void

@@ -136,7 +133,6 @@ pch_rx_timestamp(struct pch_gbe_adapter *adapter, struct sk_buff *skb)
 	struct pci_dev *pdev;
 	u64 ns;
 	u32 hi, lo, val;
-	u16 uid, seq;
 
 	if (!adapter->hwts_rx_en)
 		return;

@@ -152,10 +148,7 @@ pch_rx_timestamp(struct pch_gbe_adapter *adapter, struct sk_buff *skb)
 	lo = pch_src_uuid_lo_read(pdev);
 	hi = pch_src_uuid_hi_read(pdev);
 
-	uid = hi & 0xffff;
-	seq = (hi >> 16) & 0xffff;
-
-	if (!pch_ptp_match(skb, htons(uid), htonl(lo), htons(seq)))
+	if (!pch_ptp_match(skb, hi, lo, hi >> 16))
 		goto out;
 
 	ns = pch_rx_snap_read(pdev);

-- 
2.30.2

On Thu, Mar 25, 2021 at 07:34:07PM +0200, Andy Shevchenko wrote:

The series provides one fix (patch 1) for GPIO to be able to wait for
the GPIO driver to appear. This is separated from the conversion to
the GPIO descriptors (patch 2) in order to have a possibility for
backporting. Patches 3 and 4 fix a minor warnings from Sparse while
moving to a new APIs. Patch 5 is MODULE_VERSION() clean up.

Tested on Intel Minnowboard (v1).

Anything should I do here?

-- 
With Best Regards,
Andy Shevchenko

Hi Andy,
...

On Thu, Mar 25, 2021 at 07:34:07PM +0200, Andy Shevchenko wrote:

quoted

The series provides one fix (patch 1) for GPIO to be able to wait for
the GPIO driver to appear. This is separated from the conversion to
the GPIO descriptors (patch 2) in order to have a possibility for
backporting. Patches 3 and 4 fix a minor warnings from Sparse while
moving to a new APIs. Patch 5 is MODULE_VERSION() clean up.

Tested on Intel Minnowboard (v1).

Anything should I do here?

it's ok for me

--
With Best Regards,
Andy Shevchenko

Best regards,
Flavio Suligoi

On Tue, Mar 30, 2021 at 07:46:58AM +0000, Flavio Suligoi wrote:

Hi Andy,
...

quoted

On Thu, Mar 25, 2021 at 07:34:07PM +0200, Andy Shevchenko wrote:

quoted

The series provides one fix (patch 1) for GPIO to be able to wait for
the GPIO driver to appear. This is separated from the conversion to
the GPIO descriptors (patch 2) in order to have a possibility for
backporting. Patches 3 and 4 fix a minor warnings from Sparse while
moving to a new APIs. Patch 5 is MODULE_VERSION() clean up.

Tested on Intel Minnowboard (v1).

Anything should I do here?

it's ok for me

Thanks!
Who may apply them?

-- 
With Best Regards,
Andy Shevchenko

Hi Andy,

quoted

quoted

On Thu, Mar 25, 2021 at 07:34:07PM +0200, Andy Shevchenko wrote:

quoted

The series provides one fix (patch 1) for GPIO to be able to wait for
the GPIO driver to appear. This is separated from the conversion to
the GPIO descriptors (patch 2) in order to have a possibility for
backporting. Patches 3 and 4 fix a minor warnings from Sparse while
moving to a new APIs. Patch 5 is MODULE_VERSION() clean up.

Tested on Intel Minnowboard (v1).

Anything should I do here?

it's ok for me

Thanks!
Who may apply them?

I used your patches on kernel net-next 5.12.0-rc2, on a board with an
Intel(R) Atom(TM) CPU E640   @ 1.00GHz and an EG20T PCH.
I used the built-in OKI gigabit ethernet controller:

02:00.1 Ethernet controller: Intel Corporation Platform Controller Hub EG20T Gigabit Ethernet Controller (rev 02)
	Kernel driver in use: pch_gbe

with a simple iperf test and all works fine:

ht-700 ~ # iperf -c 192.168.200.1
------------------------------------------------------------
Client connecting to 192.168.200.1, TCP port 5001
TCP window size: 45.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.200.159 port 38638 connected with 192.168.200.1 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec   178 MBytes   149 Mbits/sec
ht-700 ~ # iperf -c 192.168.200.1
------------------------------------------------------------
Client connecting to 192.168.200.1, TCP port 5001
TCP window size: 45.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.200.159 port 38640 connected with 192.168.200.1 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec   178 MBytes   149 Mbits/sec
ht-700 ~ # iperf -c 192.168.200.1 -u
------------------------------------------------------------
Client connecting to 192.168.200.1, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  3] local 192.168.200.159 port 58364 connected with 192.168.200.1 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec  1.25 MBytes  1.05 Mbits/sec
[  3] Sent 893 datagrams
ht-700 ~ # iperf -c 192.168.200.1 -u
------------------------------------------------------------
Client connecting to 192.168.200.1, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size:  208 KByte (default)
------------------------------------------------------------
[  3] local 192.168.200.159 port 32778 connected with 192.168.200.1 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec  1.25 MBytes  1.05 Mbits/sec
[  3] Sent 893 datagrams
ht-700 ~ # uname -a
Linux ht-700 5.12.0-rc2-watchdog+ #12 SMP Thu Apr 8 11:08:49 CEST 2021 x86_64 x86_64 x86_64 GNU/Linux
ht-700 ~ # 

I hope this can help you.

Tested-by: Flavio Suligoi <f.suligoi@asem.it>

--
With Best Regards,
Andy Shevchenko

Best regards,
Flavio Suligoi

On Thu, Apr 08, 2021 at 09:57:12AM +0000, Flavio Suligoi wrote:

quoted

quoted

quoted

On Thu, Mar 25, 2021 at 07:34:07PM +0200, Andy Shevchenko wrote:

quoted

The series provides one fix (patch 1) for GPIO to be able to wait for
the GPIO driver to appear. This is separated from the conversion to
the GPIO descriptors (patch 2) in order to have a possibility for
backporting. Patches 3 and 4 fix a minor warnings from Sparse while
moving to a new APIs. Patch 5 is MODULE_VERSION() clean up.

Tested on Intel Minnowboard (v1).

Anything should I do here?

it's ok for me

Thanks!
Who may apply them?

I used your patches on kernel net-next 5.12.0-rc2, on a board with an
Intel(R) Atom(TM) CPU E640   @ 1.00GHz and an EG20T PCH.
I used the built-in OKI gigabit ethernet controller:

02:00.1 Ethernet controller: Intel Corporation Platform Controller Hub EG20T Gigabit Ethernet Controller (rev 02)
	Kernel driver in use: pch_gbe

with a simple iperf test and all works fine:

I hope this can help you.

Tested-by: Flavio Suligoi <f.suligoi@asem.it>

Thank you, Flavio, very much!

Jesse, Jakub, David. can this be applied, please?

-- 
With Best Regards,
Andy Shevchenko

On Thu, Mar 25, 2021 at 07:34:07PM +0200, Andy Shevchenko wrote:

The series provides one fix (patch 1) for GPIO to be able to wait for
the GPIO driver to appear. This is separated from the conversion to
the GPIO descriptors (patch 2) in order to have a possibility for
backporting. Patches 3 and 4 fix a minor warnings from Sparse while
moving to a new APIs. Patch 5 is MODULE_VERSION() clean up.

Tested on Intel Minnowboard (v1).

Guys, it has been already the report from kbuild bot (sparse warnings), which
should be fixed by this series (at least partially if not completely).

Please, apply this as soon as it's possible.
Or tell me what's wrong with the series.

Thanks!

Since v2:
- added a few cleanups on top of the fix

Andy Shevchenko (5):
  net: pch_gbe: Propagate error from devm_gpio_request_one()
  net: pch_gbe: Convert to use GPIO descriptors
  net: pch_gbe: use readx_poll_timeout_atomic() variant
  net: pch_gbe: Use proper accessors to BE data in pch_ptp_match()
  net: pch_gbe: remove unneeded MODULE_VERSION() call

 .../net/ethernet/oki-semi/pch_gbe/pch_gbe.h   |   2 -
 .../oki-semi/pch_gbe/pch_gbe_ethtool.c        |   2 +
 .../ethernet/oki-semi/pch_gbe/pch_gbe_main.c  | 103 +++++++++---------
 3 files changed, 54 insertions(+), 53 deletions(-)

-- 
2.30.2

-- 
With Best Regards,
Andy Shevchenko