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* [PATCH v1 1/2] mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes
       [not found] <20210331154851.8456-1-andriy.shevchenko@linux.intel.com>
@ 2021-03-31 15:48 ` Andy Shevchenko
  2021-04-06  8:36   ` Lee Jones
  2021-04-14  8:33   ` Lee Jones
  2021-03-31 15:48 ` [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data Andy Shevchenko
                   ` (2 subsequent siblings)
  3 siblings, 2 replies; 12+ messages in thread
From: Andy Shevchenko @ 2021-03-31 15:48 UTC (permalink / raw)
  To: Wolfram Sang, Andy Shevchenko, Serge Semin, Lee Jones,
	linux-kernel, linux-i2c
  Cc: Jarkko Nikula, Mika Westerberg

The driver can provide a software node group instead of
passing legacy platform data. This will allow to drop
the legacy platform data structures along with unifying
a child device driver to use same interface for all
property providers, i.e. Device Tree, ACPI, and board files.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/mfd/intel_quark_i2c_gpio.c | 41 +++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 15 deletions(-)

diff --git a/drivers/mfd/intel_quark_i2c_gpio.c b/drivers/mfd/intel_quark_i2c_gpio.c
index 9a5f84b93776..a43993e38b6e 100644
--- a/drivers/mfd/intel_quark_i2c_gpio.c
+++ b/drivers/mfd/intel_quark_i2c_gpio.c
@@ -18,7 +18,7 @@
 #include <linux/dmi.h>
 #include <linux/i2c.h>
 #include <linux/platform_data/gpio-dwapb.h>
-#include <linux/platform_data/i2c-designware.h>
+#include <linux/property.h>
 
 /* PCI BAR for register base address */
 #define MFD_I2C_BAR		0
@@ -50,24 +50,44 @@ struct intel_quark_mfd {
 	struct clk_lookup	*i2c_clk_lookup;
 };
 
+static const struct property_entry intel_quark_i2c_controller_standard_properties[] = {
+	PROPERTY_ENTRY_U32("clock-frequency", I2C_MAX_STANDARD_MODE_FREQ),
+	{ }
+};
+
+static const struct software_node intel_quark_i2c_controller_standard_node = {
+	.name = "intel-quark-i2c-controller",
+	.properties = intel_quark_i2c_controller_standard_properties,
+};
+
+static const struct property_entry intel_quark_i2c_controller_fast_properties[] = {
+	PROPERTY_ENTRY_U32("clock-frequency", I2C_MAX_FAST_MODE_FREQ),
+	{ }
+};
+
+static const struct software_node intel_quark_i2c_controller_fast_node = {
+	.name = "intel-quark-i2c-controller",
+	.properties = intel_quark_i2c_controller_fast_properties,
+};
+
 static const struct dmi_system_id dmi_platform_info[] = {
 	{
 		.matches = {
 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Galileo"),
 		},
-		.driver_data = (void *)I2C_MAX_STANDARD_MODE_FREQ,
+		.driver_data = (void *)&intel_quark_i2c_controller_standard_node,
 	},
 	{
 		.matches = {
 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "GalileoGen2"),
 		},
-		.driver_data = (void *)I2C_MAX_FAST_MODE_FREQ,
+		.driver_data = (void *)&intel_quark_i2c_controller_fast_node,
 	},
 	{
 		.matches = {
 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"),
 		},
-		.driver_data = (void *)I2C_MAX_FAST_MODE_FREQ,
+		.driver_data = (void *)&intel_quark_i2c_controller_fast_node,
 	},
 	{}
 };
@@ -162,8 +182,6 @@ static int intel_quark_i2c_setup(struct pci_dev *pdev)
 	struct mfd_cell *cell = &intel_quark_mfd_cells[MFD_I2C_BAR];
 	struct resource *res = intel_quark_i2c_res;
 	const struct dmi_system_id *dmi_id;
-	struct dw_i2c_platform_data *pdata;
-	struct device *dev = &pdev->dev;
 
 	res[INTEL_QUARK_IORES_MEM].start = pci_resource_start(pdev, MFD_I2C_BAR);
 	res[INTEL_QUARK_IORES_MEM].end = pci_resource_end(pdev, MFD_I2C_BAR);
@@ -171,19 +189,12 @@ static int intel_quark_i2c_setup(struct pci_dev *pdev)
 	res[INTEL_QUARK_IORES_IRQ].start = pci_irq_vector(pdev, 0);
 	res[INTEL_QUARK_IORES_IRQ].end = pci_irq_vector(pdev, 0);
 
-	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return -ENOMEM;
-
 	/* Normal mode by default */
-	pdata->i2c_scl_freq = I2C_MAX_STANDARD_MODE_FREQ;
+	cell->swnode = &intel_quark_i2c_controller_standard_node;
 
 	dmi_id = dmi_first_match(dmi_platform_info);
 	if (dmi_id)
-		pdata->i2c_scl_freq = (uintptr_t)dmi_id->driver_data;
-
-	cell->platform_data = pdata;
-	cell->pdata_size = sizeof(*pdata);
+		cell->swnode = (struct software_node *)dmi_id->driver_data;
 
 	return 0;
 }
-- 
2.30.2


^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data
       [not found] <20210331154851.8456-1-andriy.shevchenko@linux.intel.com>
  2021-03-31 15:48 ` [PATCH v1 1/2] mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes Andy Shevchenko
@ 2021-03-31 15:48 ` Andy Shevchenko
  2021-04-06 10:49   ` Wolfram Sang
  2021-04-14  8:33   ` Lee Jones
  2021-04-05 20:59 ` [PATCH v1 0/2] mfd: intel_quark_i2c_gpio: Covert I²C part to software nodes Wolfram Sang
  2021-04-13 16:06 ` Andy Shevchenko
  3 siblings, 2 replies; 12+ messages in thread
From: Andy Shevchenko @ 2021-03-31 15:48 UTC (permalink / raw)
  To: Wolfram Sang, Andy Shevchenko, Serge Semin, Lee Jones,
	linux-kernel, linux-i2c
  Cc: Jarkko Nikula, Mika Westerberg

Platform data is a legacy interface to supply device properties
to the driver. In this case we don't have anymore in-kernel users
for it. Just remove it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/i2c/busses/i2c-designware-platdrv.c  |  7 +------
 include/linux/platform_data/i2c-designware.h | 13 -------------
 2 files changed, 1 insertion(+), 19 deletions(-)
 delete mode 100644 include/linux/platform_data/i2c-designware.h

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 0dfeb2d11603..4b37f28ec0c6 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -22,7 +22,6 @@
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/platform_data/i2c-designware.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
@@ -206,7 +205,6 @@ static const struct dmi_system_id dw_i2c_hwmon_class_dmi[] = {
 
 static int dw_i2c_plat_probe(struct platform_device *pdev)
 {
-	struct dw_i2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct i2c_adapter *adap;
 	struct dw_i2c_dev *dev;
 	struct i2c_timings *t;
@@ -236,10 +234,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 	reset_control_deassert(dev->rst);
 
 	t = &dev->timings;
-	if (pdata)
-		t->bus_freq_hz = pdata->i2c_scl_freq;
-	else
-		i2c_parse_fw_timings(&pdev->dev, t, false);
+	i2c_parse_fw_timings(&pdev->dev, t, false);
 
 	i2c_dw_adjust_bus_speed(dev);
 
diff --git a/include/linux/platform_data/i2c-designware.h b/include/linux/platform_data/i2c-designware.h
deleted file mode 100644
index 014c4a5a7e13..000000000000
--- a/include/linux/platform_data/i2c-designware.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright(c) 2014 Intel Corporation.
- */
-
-#ifndef I2C_DESIGNWARE_H
-#define I2C_DESIGNWARE_H
-
-struct dw_i2c_platform_data {
-	unsigned int i2c_scl_freq;
-};
-
-#endif
-- 
2.30.2


^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 0/2] mfd: intel_quark_i2c_gpio: Covert I²C part to software nodes
       [not found] <20210331154851.8456-1-andriy.shevchenko@linux.intel.com>
  2021-03-31 15:48 ` [PATCH v1 1/2] mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes Andy Shevchenko
  2021-03-31 15:48 ` [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data Andy Shevchenko
@ 2021-04-05 20:59 ` Wolfram Sang
  2021-04-06 10:38   ` Andy Shevchenko
  2021-04-13 16:06 ` Andy Shevchenko
  3 siblings, 1 reply; 12+ messages in thread
From: Wolfram Sang @ 2021-04-05 20:59 UTC (permalink / raw)
  To: Andy Shevchenko
  Cc: Serge Semin, Lee Jones, linux-kernel, linux-i2c, Jarkko Nikula,
	Mika Westerberg


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> driver). In any case I guess the procedure is pretty much standard, i.e. Lee
> creates an immutable branch that Wolfram can pull into his tree.

Yes, that would be my favourite.


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^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 1/2] mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes
  2021-03-31 15:48 ` [PATCH v1 1/2] mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes Andy Shevchenko
@ 2021-04-06  8:36   ` Lee Jones
  2021-04-14  8:33   ` Lee Jones
  1 sibling, 0 replies; 12+ messages in thread
From: Lee Jones @ 2021-04-06  8:36 UTC (permalink / raw)
  To: Andy Shevchenko
  Cc: Wolfram Sang, Serge Semin, linux-kernel, linux-i2c,
	Jarkko Nikula, Mika Westerberg

On Wed, 31 Mar 2021, Andy Shevchenko wrote:

> The driver can provide a software node group instead of
> passing legacy platform data. This will allow to drop
> the legacy platform data structures along with unifying
> a child device driver to use same interface for all
> property providers, i.e. Device Tree, ACPI, and board files.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/mfd/intel_quark_i2c_gpio.c | 41 +++++++++++++++++++-----------
>  1 file changed, 26 insertions(+), 15 deletions(-)

For my own reference (apply this as-is to your sign-off block):

  Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 0/2] mfd: intel_quark_i2c_gpio: Covert I²C part to software nodes
  2021-04-05 20:59 ` [PATCH v1 0/2] mfd: intel_quark_i2c_gpio: Covert I²C part to software nodes Wolfram Sang
@ 2021-04-06 10:38   ` Andy Shevchenko
  0 siblings, 0 replies; 12+ messages in thread
From: Andy Shevchenko @ 2021-04-06 10:38 UTC (permalink / raw)
  To: Wolfram Sang, Serge Semin, Lee Jones, linux-kernel, linux-i2c,
	Jarkko Nikula, Mika Westerberg

On Mon, Apr 05, 2021 at 10:59:28PM +0200, Wolfram Sang wrote:
> 
> > driver). In any case I guess the procedure is pretty much standard, i.e. Lee
> > creates an immutable branch that Wolfram can pull into his tree.
> 
> Yes, that would be my favourite.

Can you Ack the patch then?

-- 
With Best Regards,
Andy Shevchenko



^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data
  2021-03-31 15:48 ` [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data Andy Shevchenko
@ 2021-04-06 10:49   ` Wolfram Sang
  2021-04-06 11:27     ` Jarkko Nikula
  2021-04-14  8:14     ` Lee Jones
  2021-04-14  8:33   ` Lee Jones
  1 sibling, 2 replies; 12+ messages in thread
From: Wolfram Sang @ 2021-04-06 10:49 UTC (permalink / raw)
  To: Andy Shevchenko
  Cc: Serge Semin, Lee Jones, linux-kernel, linux-i2c, Jarkko Nikula,
	Mika Westerberg


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On Wed, Mar 31, 2021 at 06:48:51PM +0300, Andy Shevchenko wrote:
> Platform data is a legacy interface to supply device properties
> to the driver. In this case we don't have anymore in-kernel users
> for it. Just remove it for good.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Acked-by: Wolfram Sang <wsa@kernel.org>


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^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data
  2021-04-06 10:49   ` Wolfram Sang
@ 2021-04-06 11:27     ` Jarkko Nikula
  2021-04-14  8:14     ` Lee Jones
  1 sibling, 0 replies; 12+ messages in thread
From: Jarkko Nikula @ 2021-04-06 11:27 UTC (permalink / raw)
  To: Wolfram Sang, Andy Shevchenko
  Cc: Serge Semin, Lee Jones, linux-kernel, linux-i2c, Mika Westerberg

On 4/6/21 1:49 PM, Wolfram Sang wrote:
> On Wed, Mar 31, 2021 at 06:48:51PM +0300, Andy Shevchenko wrote:
>> Platform data is a legacy interface to supply device properties
>> to the driver. In this case we don't have anymore in-kernel users
>> for it. Just remove it for good.
>>
>> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> 
> Acked-by: Wolfram Sang <wsa@kernel.org>
> 
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 0/2] mfd: intel_quark_i2c_gpio: Covert I²C part to software nodes
       [not found] <20210331154851.8456-1-andriy.shevchenko@linux.intel.com>
                   ` (2 preceding siblings ...)
  2021-04-05 20:59 ` [PATCH v1 0/2] mfd: intel_quark_i2c_gpio: Covert I²C part to software nodes Wolfram Sang
@ 2021-04-13 16:06 ` Andy Shevchenko
  3 siblings, 0 replies; 12+ messages in thread
From: Andy Shevchenko @ 2021-04-13 16:06 UTC (permalink / raw)
  To: Wolfram Sang, Serge Semin, Lee Jones, linux-kernel, linux-i2c
  Cc: Jarkko Nikula, Mika Westerberg

On Wed, Mar 31, 2021 at 06:48:49PM +0300, Andy Shevchenko wrote:
> Since we have software nodes support in MFD core, we may start converting
> intel_quark_i2c_gpio driver to use it. For the starter it converts I²C part.
> and as a result we get rid of platform data for I²C DesignWare driver.
> 
> This series depends on the stuff in MFD. OTOH the DesignWare patch should not
> be in conflict with other patches floating around (against I²C DesignWare
> driver). In any case I guess the procedure is pretty much standard, i.e. Lee
> creates an immutable branch that Wolfram can pull into his tree.

Lee, can you, please, apply this series?
It seems we have all Acked by respective maintainer(s).

> Andy Shevchenko (2):
>   mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes
>   i2c: designware: Get rid of legacy platform data
> 
>  drivers/i2c/busses/i2c-designware-platdrv.c  |  7 +---
>  drivers/mfd/intel_quark_i2c_gpio.c           | 41 +++++++++++++-------
>  include/linux/platform_data/i2c-designware.h | 13 -------
>  3 files changed, 27 insertions(+), 34 deletions(-)
>  delete mode 100644 include/linux/platform_data/i2c-designware.h
> 
> -- 
> 2.30.2
> 

-- 
With Best Regards,
Andy Shevchenko



^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data
  2021-04-06 10:49   ` Wolfram Sang
  2021-04-06 11:27     ` Jarkko Nikula
@ 2021-04-14  8:14     ` Lee Jones
  2021-04-14  8:15       ` Wolfram Sang
  1 sibling, 1 reply; 12+ messages in thread
From: Lee Jones @ 2021-04-14  8:14 UTC (permalink / raw)
  To: Wolfram Sang
  Cc: Andy Shevchenko, Serge Semin, linux-kernel, linux-i2c,
	Jarkko Nikula, Mika Westerberg

On Tue, 06 Apr 2021, Wolfram Sang wrote:

> On Wed, Mar 31, 2021 at 06:48:51PM +0300, Andy Shevchenko wrote:
> > Platform data is a legacy interface to supply device properties
> > to the driver. In this case we don't have anymore in-kernel users
> > for it. Just remove it for good.
> > 
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> 
> Acked-by: Wolfram Sang <wsa@kernel.org>

Do you require an immutable branch?

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data
  2021-04-14  8:14     ` Lee Jones
@ 2021-04-14  8:15       ` Wolfram Sang
  0 siblings, 0 replies; 12+ messages in thread
From: Wolfram Sang @ 2021-04-14  8:15 UTC (permalink / raw)
  To: Lee Jones
  Cc: Andy Shevchenko, Serge Semin, linux-kernel, linux-i2c,
	Jarkko Nikula, Mika Westerberg


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> > > Platform data is a legacy interface to supply device properties
> > > to the driver. In this case we don't have anymore in-kernel users
> > > for it. Just remove it for good.
> > > 
> > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> > 
> > Acked-by: Wolfram Sang <wsa@kernel.org>
> 
> Do you require an immutable branch?

Nope, but thanks for asking.


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^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 1/2] mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes
  2021-03-31 15:48 ` [PATCH v1 1/2] mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes Andy Shevchenko
  2021-04-06  8:36   ` Lee Jones
@ 2021-04-14  8:33   ` Lee Jones
  1 sibling, 0 replies; 12+ messages in thread
From: Lee Jones @ 2021-04-14  8:33 UTC (permalink / raw)
  To: Andy Shevchenko
  Cc: Wolfram Sang, Serge Semin, linux-kernel, linux-i2c,
	Jarkko Nikula, Mika Westerberg

On Wed, 31 Mar 2021, Andy Shevchenko wrote:

> The driver can provide a software node group instead of
> passing legacy platform data. This will allow to drop
> the legacy platform data structures along with unifying
> a child device driver to use same interface for all
> property providers, i.e. Device Tree, ACPI, and board files.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/mfd/intel_quark_i2c_gpio.c | 41 +++++++++++++++++++-----------
>  1 file changed, 26 insertions(+), 15 deletions(-)

Applied, thanks.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data
  2021-03-31 15:48 ` [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data Andy Shevchenko
  2021-04-06 10:49   ` Wolfram Sang
@ 2021-04-14  8:33   ` Lee Jones
  1 sibling, 0 replies; 12+ messages in thread
From: Lee Jones @ 2021-04-14  8:33 UTC (permalink / raw)
  To: Andy Shevchenko
  Cc: Wolfram Sang, Serge Semin, linux-kernel, linux-i2c,
	Jarkko Nikula, Mika Westerberg

On Wed, 31 Mar 2021, Andy Shevchenko wrote:

> Platform data is a legacy interface to supply device properties
> to the driver. In this case we don't have anymore in-kernel users
> for it. Just remove it for good.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/i2c/busses/i2c-designware-platdrv.c  |  7 +------
>  include/linux/platform_data/i2c-designware.h | 13 -------------
>  2 files changed, 1 insertion(+), 19 deletions(-)
>  delete mode 100644 include/linux/platform_data/i2c-designware.h

Applied, thanks.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

^ permalink raw reply	[flat|nested] 12+ messages in thread

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Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <20210331154851.8456-1-andriy.shevchenko@linux.intel.com>
2021-03-31 15:48 ` [PATCH v1 1/2] mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes Andy Shevchenko
2021-04-06  8:36   ` Lee Jones
2021-04-14  8:33   ` Lee Jones
2021-03-31 15:48 ` [PATCH v1 2/2] i2c: designware: Get rid of legacy platform data Andy Shevchenko
2021-04-06 10:49   ` Wolfram Sang
2021-04-06 11:27     ` Jarkko Nikula
2021-04-14  8:14     ` Lee Jones
2021-04-14  8:15       ` Wolfram Sang
2021-04-14  8:33   ` Lee Jones
2021-04-05 20:59 ` [PATCH v1 0/2] mfd: intel_quark_i2c_gpio: Covert I²C part to software nodes Wolfram Sang
2021-04-06 10:38   ` Andy Shevchenko
2021-04-13 16:06 ` Andy Shevchenko

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