[PATCH v4 0/5] spi: pxa2xx: Pass the SSP type via device property

[PATCH v4 0/5] spi: pxa2xx: Pass the SSP type via device property

[Andy Shevchenko]

Currently the SPI PXA2xx devices on Intel platforms can be instantiated
via the following paths:
 1) as ACPI LPSS device on Haswell, Bay Trail and Cherry Trail;
 2) as ACPI LPSS device on the Sky Lake and newer;
 3) as PCI LPSS device on Haswell, Bay Trail and Cherry Trail;
 4) as PCI LPSS device on the Sky Lake and newer;
 5) as PCI device via ID table.

Each of these cases provides some platform related data differently,
i.e.:
 1) via drivers/acpi/acpi_lpss.c and drivers/spi/spi-pxa2xx.c
 2) via drivers/mfd/intel-lpss-acpi.c
 3) via drivers/spi/spi-pxa2xx-pci.c
 4) via drivers/mfd/intel-lpss-pci.c and drivers/spi/spi-pxa2xx.c
 5) via drivers/spi/spi-pxa2xx-pci.c

This approach has two downsides:

a) there is no data propagated in the case #2 because we can't have
   two or more drivers to match the same ACPI ID and hence some cases
   are still not supported (Sky Lake and newer ACPI enabled LPSS);

b) the data is duplicated over two drivers in the cases #1 & #4 and,
   besides to be a bloatware, it is error prone (e.g. Lakefield has
   a wrong data right now due to missed PCI entry in the spi-pxa2xx.c).

This series fixes the downsides, and enables previously unsupported
cases. On top of that it has a couple of cleanups (patches 4 and 5).

Changelog v4:
- apply the property only for known MFD enumerated devices (Mark)

Changelog v3:
- added tags to patches 4 & 5 (Jonathan)
- massaged cover letter

Changelog v2:
- added cover letter (Mark)
- dropped applied patch

Andy Shevchenko (5):
  spi: pxa2xx: Respect Intel SSP type given by a property
  spi: pxa2xx: Remove no more needed PCI ID table
  spi: pxa2xx: Move OF and ACPI ID tables closer to their user
  spi: pxa2xx: Consistently use dev variable in pxa2xx_spi_init_pdata()
  spi: pxa2xx: Switch from PM ifdeffery to pm_ptr()

 drivers/spi/spi-pxa2xx.c   | 186 ++++++++-----------------------------
 include/linux/pxa2xx_ssp.h |   1 +
 2 files changed, 41 insertions(+), 146 deletions(-)

-- 
2.35.1

[PATCH v4 0/5] spi: pxa2xx: Pass the SSP type via device property

[Andy Shevchenko]

Currently the SPI PXA2xx devices on Intel platforms can be instantiated
via the following paths:
 1) as ACPI LPSS device on Haswell, Bay Trail and Cherry Trail;
 2) as ACPI LPSS device on the Sky Lake and newer;
 3) as PCI LPSS device on Haswell, Bay Trail and Cherry Trail;
 4) as PCI LPSS device on the Sky Lake and newer;
 5) as PCI device via ID table.

Each of these cases provides some platform related data differently,
i.e.:
 1) via drivers/acpi/acpi_lpss.c and drivers/spi/spi-pxa2xx.c
 2) via drivers/mfd/intel-lpss-acpi.c
 3) via drivers/spi/spi-pxa2xx-pci.c
 4) via drivers/mfd/intel-lpss-pci.c and drivers/spi/spi-pxa2xx.c
 5) via drivers/spi/spi-pxa2xx-pci.c

This approach has two downsides:

a) there is no data propagated in the case #2 because we can't have
   two or more drivers to match the same ACPI ID and hence some cases
   are still not supported (Sky Lake and newer ACPI enabled LPSS);

b) the data is duplicated over two drivers in the cases #1 & #4 and,
   besides to be a bloatware, it is error prone (e.g. Lakefield has
   a wrong data right now due to missed PCI entry in the spi-pxa2xx.c).

This series fixes the downsides, and enables previously unsupported
cases. On top of that it has a couple of cleanups (patches 4 and 5).

Changelog v4:
- apply the property only for known MFD enumerated devices (Mark)

Changelog v3:
- added tags to patches 4 & 5 (Jonathan)
- massaged cover letter

Changelog v2:
- added cover letter (Mark)
- dropped applied patch

Andy Shevchenko (5):
  spi: pxa2xx: Respect Intel SSP type given by a property
  spi: pxa2xx: Remove no more needed PCI ID table
  spi: pxa2xx: Move OF and ACPI ID tables closer to their user
  spi: pxa2xx: Consistently use dev variable in pxa2xx_spi_init_pdata()
  spi: pxa2xx: Switch from PM ifdeffery to pm_ptr()

 drivers/spi/spi-pxa2xx.c   | 186 ++++++++-----------------------------
 include/linux/pxa2xx_ssp.h |   1 +
 2 files changed, 41 insertions(+), 146 deletions(-)

-- 
2.35.1


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[PATCH v4 1/5] spi: pxa2xx: Respect Intel SSP type given by a property

[Andy Shevchenko]

Allow to set the Intel SSP type by reading the property.
Only apply this to the known MFD enumerated devices.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-pxa2xx.c   | 12 ++++++++++++
 include/linux/pxa2xx_ssp.h |  1 +
 2 files changed, 13 insertions(+)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 03ed6d4a14cd..f3ba1b0588fb 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1460,17 +1460,29 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	struct resource *res;
 	struct pci_dev *pcidev = dev_is_pci(parent) ? to_pci_dev(parent) : NULL;
 	const struct pci_device_id *pcidev_id = NULL;
+	u32 value = SSP_UNDEFINED;
 	enum pxa_ssp_type type;
+	bool mfd_enumerated;
 	const void *match;
 	int status;
 	u64 uid;
 
+	/* For MFD enumerated devices always ask for a property */
+	mfd_enumerated = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpss_priv");
+	if (mfd_enumerated) {
+		status = device_property_read_u32(dev, "intel,spi-pxa2xx-type", &value);
+		if (status)
+			return ERR_PTR(status);
+	}
+
 	if (pcidev)
 		pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match, pcidev);
 
 	match = device_get_match_data(&pdev->dev);
 	if (match)
 		type = (enum pxa_ssp_type)match;
+	else if (value > SSP_UNDEFINED && value < SSP_MAX)
+		type = (enum pxa_ssp_type)value;
 	else if (pcidev_id)
 		type = (enum pxa_ssp_type)pcidev_id->driver_data;
 	else
diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h
index a3fec2de512f..cd1973e6ac4b 100644
--- a/include/linux/pxa2xx_ssp.h
+++ b/include/linux/pxa2xx_ssp.h
@@ -229,6 +229,7 @@ enum pxa_ssp_type {
 	LPSS_SPT_SSP,
 	LPSS_BXT_SSP,
 	LPSS_CNL_SSP,
+	SSP_MAX
 };
 
 struct ssp_device {
-- 
2.35.1

[PATCH v4 1/5] spi: pxa2xx: Respect Intel SSP type given by a property

[Andy Shevchenko]

Allow to set the Intel SSP type by reading the property.
Only apply this to the known MFD enumerated devices.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-pxa2xx.c   | 12 ++++++++++++
 include/linux/pxa2xx_ssp.h |  1 +
 2 files changed, 13 insertions(+)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 03ed6d4a14cd..f3ba1b0588fb 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1460,17 +1460,29 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	struct resource *res;
 	struct pci_dev *pcidev = dev_is_pci(parent) ? to_pci_dev(parent) : NULL;
 	const struct pci_device_id *pcidev_id = NULL;
+	u32 value = SSP_UNDEFINED;
 	enum pxa_ssp_type type;
+	bool mfd_enumerated;
 	const void *match;
 	int status;
 	u64 uid;
 
+	/* For MFD enumerated devices always ask for a property */
+	mfd_enumerated = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpss_priv");
+	if (mfd_enumerated) {
+		status = device_property_read_u32(dev, "intel,spi-pxa2xx-type", &value);
+		if (status)
+			return ERR_PTR(status);
+	}
+
 	if (pcidev)
 		pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match, pcidev);
 
 	match = device_get_match_data(&pdev->dev);
 	if (match)
 		type = (enum pxa_ssp_type)match;
+	else if (value > SSP_UNDEFINED && value < SSP_MAX)
+		type = (enum pxa_ssp_type)value;
 	else if (pcidev_id)
 		type = (enum pxa_ssp_type)pcidev_id->driver_data;
 	else
diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h
index a3fec2de512f..cd1973e6ac4b 100644
--- a/include/linux/pxa2xx_ssp.h
+++ b/include/linux/pxa2xx_ssp.h
@@ -229,6 +229,7 @@ enum pxa_ssp_type {
 	LPSS_SPT_SSP,
 	LPSS_BXT_SSP,
 	LPSS_CNL_SSP,
+	SSP_MAX
 };
 
 struct ssp_device {
-- 
2.35.1


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linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
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[PATCH v4 2/5] spi: pxa2xx: Remove no more needed PCI ID table

[Andy Shevchenko]

Since the PCI enumerated devices provide a property with SSP type,
there is no more necessity to bear the copy of the ID table here.
Remove it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-pxa2xx.c | 117 +--------------------------------------
 1 file changed, 2 insertions(+), 115 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index f3ba1b0588fb..96c9bb7925de 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -20,7 +20,6 @@
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/of.h>
-#include <linux/pci.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/property.h>
@@ -1335,121 +1334,17 @@ static const struct acpi_device_id pxa2xx_spi_acpi_match[] = {
 MODULE_DEVICE_TABLE(acpi, pxa2xx_spi_acpi_match);
 #endif
 
-/*
- * PCI IDs of compound devices that integrate both host controller and private
- * integrated DMA engine. Please note these are not used in module
- * autoloading and probing in this module but matching the LPSS SSP type.
- */
-static const struct pci_device_id pxa2xx_spi_pci_compound_match[] = {
-	/* SPT-LP */
-	{ PCI_VDEVICE(INTEL, 0x9d29), LPSS_SPT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x9d2a), LPSS_SPT_SSP },
-	/* SPT-H */
-	{ PCI_VDEVICE(INTEL, 0xa129), LPSS_SPT_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa12a), LPSS_SPT_SSP },
-	/* KBL-H */
-	{ PCI_VDEVICE(INTEL, 0xa2a9), LPSS_SPT_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa2aa), LPSS_SPT_SSP },
-	/* CML-V */
-	{ PCI_VDEVICE(INTEL, 0xa3a9), LPSS_SPT_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa3aa), LPSS_SPT_SSP },
-	/* BXT A-Step */
-	{ PCI_VDEVICE(INTEL, 0x0ac2), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x0ac4), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x0ac6), LPSS_BXT_SSP },
-	/* BXT B-Step */
-	{ PCI_VDEVICE(INTEL, 0x1ac2), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x1ac4), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x1ac6), LPSS_BXT_SSP },
-	/* GLK */
-	{ PCI_VDEVICE(INTEL, 0x31c2), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x31c4), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x31c6), LPSS_BXT_SSP },
-	/* ICL-LP */
-	{ PCI_VDEVICE(INTEL, 0x34aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x34ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x34fb), LPSS_CNL_SSP },
-	/* EHL */
-	{ PCI_VDEVICE(INTEL, 0x4b2a), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x4b2b), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x4b37), LPSS_BXT_SSP },
-	/* JSL */
-	{ PCI_VDEVICE(INTEL, 0x4daa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x4dab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x4dfb), LPSS_CNL_SSP },
-	/* TGL-H */
-	{ PCI_VDEVICE(INTEL, 0x43aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x43ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x43fb), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x43fd), LPSS_CNL_SSP },
-	/* ADL-P */
-	{ PCI_VDEVICE(INTEL, 0x51aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x51ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x51fb), LPSS_CNL_SSP },
-	/* ADL-M */
-	{ PCI_VDEVICE(INTEL, 0x54aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x54ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x54fb), LPSS_CNL_SSP },
-	/* APL */
-	{ PCI_VDEVICE(INTEL, 0x5ac2), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x5ac4), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x5ac6), LPSS_BXT_SSP },
-	/* RPL-S */
-	{ PCI_VDEVICE(INTEL, 0x7a2a), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7a2b), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7a79), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7a7b), LPSS_CNL_SSP },
-	/* ADL-S */
-	{ PCI_VDEVICE(INTEL, 0x7aaa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7aab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7af9), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7afb), LPSS_CNL_SSP },
-	/* MTL-P */
-	{ PCI_VDEVICE(INTEL, 0x7e27), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7e30), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7e46), LPSS_CNL_SSP },
-	/* CNL-LP */
-	{ PCI_VDEVICE(INTEL, 0x9daa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x9dab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x9dfb), LPSS_CNL_SSP },
-	/* CNL-H */
-	{ PCI_VDEVICE(INTEL, 0xa32a), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa32b), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa37b), LPSS_CNL_SSP },
-	/* CML-LP */
-	{ PCI_VDEVICE(INTEL, 0x02aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x02ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x02fb), LPSS_CNL_SSP },
-	/* CML-H */
-	{ PCI_VDEVICE(INTEL, 0x06aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x06ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x06fb), LPSS_CNL_SSP },
-	/* TGL-LP */
-	{ PCI_VDEVICE(INTEL, 0xa0aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0de), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0df), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0fb), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0fd), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0fe), LPSS_CNL_SSP },
-	{ },
-};
-
 static const struct of_device_id pxa2xx_spi_of_match[] = {
 	{ .compatible = "marvell,mmp2-ssp", .data = (void *)MMP2_SSP },
 	{},
 };
 MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
 
-#ifdef CONFIG_PCI
-
 static bool pxa2xx_spi_idma_filter(struct dma_chan *chan, void *param)
 {
 	return param == chan->device->dev;
 }
 
-#endif /* CONFIG_PCI */
-
 static struct pxa2xx_spi_controller *
 pxa2xx_spi_init_pdata(struct platform_device *pdev)
 {
@@ -1458,8 +1353,6 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	struct device *parent = dev->parent;
 	struct ssp_device *ssp;
 	struct resource *res;
-	struct pci_dev *pcidev = dev_is_pci(parent) ? to_pci_dev(parent) : NULL;
-	const struct pci_device_id *pcidev_id = NULL;
 	u32 value = SSP_UNDEFINED;
 	enum pxa_ssp_type type;
 	bool mfd_enumerated;
@@ -1475,16 +1368,11 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 			return ERR_PTR(status);
 	}
 
-	if (pcidev)
-		pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match, pcidev);
-
 	match = device_get_match_data(&pdev->dev);
 	if (match)
 		type = (enum pxa_ssp_type)match;
 	else if (value > SSP_UNDEFINED && value < SSP_MAX)
 		type = (enum pxa_ssp_type)value;
-	else if (pcidev_id)
-		type = (enum pxa_ssp_type)pcidev_id->driver_data;
 	else
 		return ERR_PTR(-EINVAL);
 
@@ -1500,13 +1388,12 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 
 	ssp->phys_base = res->start;
 
-#ifdef CONFIG_PCI
-	if (pcidev_id) {
+	/* Platforms with iDMA 64-bit */
+	if (mfd_enumerated) {
 		pdata->tx_param = parent;
 		pdata->rx_param = parent;
 		pdata->dma_filter = pxa2xx_spi_idma_filter;
 	}
-#endif
 
 	ssp->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(ssp->clk))
-- 
2.35.1

[PATCH v4 2/5] spi: pxa2xx: Remove no more needed PCI ID table

[Andy Shevchenko]

Since the PCI enumerated devices provide a property with SSP type,
there is no more necessity to bear the copy of the ID table here.
Remove it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-pxa2xx.c | 117 +--------------------------------------
 1 file changed, 2 insertions(+), 115 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index f3ba1b0588fb..96c9bb7925de 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -20,7 +20,6 @@
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/of.h>
-#include <linux/pci.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/property.h>
@@ -1335,121 +1334,17 @@ static const struct acpi_device_id pxa2xx_spi_acpi_match[] = {
 MODULE_DEVICE_TABLE(acpi, pxa2xx_spi_acpi_match);
 #endif
 
-/*
- * PCI IDs of compound devices that integrate both host controller and private
- * integrated DMA engine. Please note these are not used in module
- * autoloading and probing in this module but matching the LPSS SSP type.
- */
-static const struct pci_device_id pxa2xx_spi_pci_compound_match[] = {
-	/* SPT-LP */
-	{ PCI_VDEVICE(INTEL, 0x9d29), LPSS_SPT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x9d2a), LPSS_SPT_SSP },
-	/* SPT-H */
-	{ PCI_VDEVICE(INTEL, 0xa129), LPSS_SPT_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa12a), LPSS_SPT_SSP },
-	/* KBL-H */
-	{ PCI_VDEVICE(INTEL, 0xa2a9), LPSS_SPT_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa2aa), LPSS_SPT_SSP },
-	/* CML-V */
-	{ PCI_VDEVICE(INTEL, 0xa3a9), LPSS_SPT_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa3aa), LPSS_SPT_SSP },
-	/* BXT A-Step */
-	{ PCI_VDEVICE(INTEL, 0x0ac2), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x0ac4), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x0ac6), LPSS_BXT_SSP },
-	/* BXT B-Step */
-	{ PCI_VDEVICE(INTEL, 0x1ac2), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x1ac4), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x1ac6), LPSS_BXT_SSP },
-	/* GLK */
-	{ PCI_VDEVICE(INTEL, 0x31c2), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x31c4), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x31c6), LPSS_BXT_SSP },
-	/* ICL-LP */
-	{ PCI_VDEVICE(INTEL, 0x34aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x34ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x34fb), LPSS_CNL_SSP },
-	/* EHL */
-	{ PCI_VDEVICE(INTEL, 0x4b2a), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x4b2b), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x4b37), LPSS_BXT_SSP },
-	/* JSL */
-	{ PCI_VDEVICE(INTEL, 0x4daa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x4dab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x4dfb), LPSS_CNL_SSP },
-	/* TGL-H */
-	{ PCI_VDEVICE(INTEL, 0x43aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x43ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x43fb), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x43fd), LPSS_CNL_SSP },
-	/* ADL-P */
-	{ PCI_VDEVICE(INTEL, 0x51aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x51ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x51fb), LPSS_CNL_SSP },
-	/* ADL-M */
-	{ PCI_VDEVICE(INTEL, 0x54aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x54ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x54fb), LPSS_CNL_SSP },
-	/* APL */
-	{ PCI_VDEVICE(INTEL, 0x5ac2), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x5ac4), LPSS_BXT_SSP },
-	{ PCI_VDEVICE(INTEL, 0x5ac6), LPSS_BXT_SSP },
-	/* RPL-S */
-	{ PCI_VDEVICE(INTEL, 0x7a2a), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7a2b), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7a79), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7a7b), LPSS_CNL_SSP },
-	/* ADL-S */
-	{ PCI_VDEVICE(INTEL, 0x7aaa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7aab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7af9), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7afb), LPSS_CNL_SSP },
-	/* MTL-P */
-	{ PCI_VDEVICE(INTEL, 0x7e27), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7e30), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x7e46), LPSS_CNL_SSP },
-	/* CNL-LP */
-	{ PCI_VDEVICE(INTEL, 0x9daa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x9dab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x9dfb), LPSS_CNL_SSP },
-	/* CNL-H */
-	{ PCI_VDEVICE(INTEL, 0xa32a), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa32b), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa37b), LPSS_CNL_SSP },
-	/* CML-LP */
-	{ PCI_VDEVICE(INTEL, 0x02aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x02ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x02fb), LPSS_CNL_SSP },
-	/* CML-H */
-	{ PCI_VDEVICE(INTEL, 0x06aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x06ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0x06fb), LPSS_CNL_SSP },
-	/* TGL-LP */
-	{ PCI_VDEVICE(INTEL, 0xa0aa), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0ab), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0de), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0df), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0fb), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0fd), LPSS_CNL_SSP },
-	{ PCI_VDEVICE(INTEL, 0xa0fe), LPSS_CNL_SSP },
-	{ },
-};
-
 static const struct of_device_id pxa2xx_spi_of_match[] = {
 	{ .compatible = "marvell,mmp2-ssp", .data = (void *)MMP2_SSP },
 	{},
 };
 MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
 
-#ifdef CONFIG_PCI
-
 static bool pxa2xx_spi_idma_filter(struct dma_chan *chan, void *param)
 {
 	return param == chan->device->dev;
 }
 
-#endif /* CONFIG_PCI */
-
 static struct pxa2xx_spi_controller *
 pxa2xx_spi_init_pdata(struct platform_device *pdev)
 {
@@ -1458,8 +1353,6 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	struct device *parent = dev->parent;
 	struct ssp_device *ssp;
 	struct resource *res;
-	struct pci_dev *pcidev = dev_is_pci(parent) ? to_pci_dev(parent) : NULL;
-	const struct pci_device_id *pcidev_id = NULL;
 	u32 value = SSP_UNDEFINED;
 	enum pxa_ssp_type type;
 	bool mfd_enumerated;
@@ -1475,16 +1368,11 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 			return ERR_PTR(status);
 	}
 
-	if (pcidev)
-		pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match, pcidev);
-
 	match = device_get_match_data(&pdev->dev);
 	if (match)
 		type = (enum pxa_ssp_type)match;
 	else if (value > SSP_UNDEFINED && value < SSP_MAX)
 		type = (enum pxa_ssp_type)value;
-	else if (pcidev_id)
-		type = (enum pxa_ssp_type)pcidev_id->driver_data;
 	else
 		return ERR_PTR(-EINVAL);
 
@@ -1500,13 +1388,12 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 
 	ssp->phys_base = res->start;
 
-#ifdef CONFIG_PCI
-	if (pcidev_id) {
+	/* Platforms with iDMA 64-bit */
+	if (mfd_enumerated) {
 		pdata->tx_param = parent;
 		pdata->rx_param = parent;
 		pdata->dma_filter = pxa2xx_spi_idma_filter;
 	}
-#endif
 
 	ssp->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(ssp->clk))
-- 
2.35.1


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[PATCH v4 3/5] spi: pxa2xx: Move OF and ACPI ID tables closer to their user

[Andy Shevchenko]

There is no code that uses ID tables directly, except the
struct device_driver at the end of the file. Hence, move
tables closer to its user. It's always possible to access
them via pointer to a platform device.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/spi/spi-pxa2xx.c | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 96c9bb7925de..0824965e894d 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1321,25 +1321,6 @@ static void cleanup(struct spi_device *spi)
 	kfree(chip);
 }
 
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id pxa2xx_spi_acpi_match[] = {
-	{ "INT33C0", LPSS_LPT_SSP },
-	{ "INT33C1", LPSS_LPT_SSP },
-	{ "INT3430", LPSS_LPT_SSP },
-	{ "INT3431", LPSS_LPT_SSP },
-	{ "80860F0E", LPSS_BYT_SSP },
-	{ "8086228E", LPSS_BSW_SSP },
-	{ },
-};
-MODULE_DEVICE_TABLE(acpi, pxa2xx_spi_acpi_match);
-#endif
-
-static const struct of_device_id pxa2xx_spi_of_match[] = {
-	{ .compatible = "marvell,mmp2-ssp", .data = (void *)MMP2_SSP },
-	{},
-};
-MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
-
 static bool pxa2xx_spi_idma_filter(struct dma_chan *chan, void *param)
 {
 	return param == chan->device->dev;
@@ -1765,6 +1746,25 @@ static const struct dev_pm_ops pxa2xx_spi_pm_ops = {
 			   pxa2xx_spi_runtime_resume, NULL)
 };
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id pxa2xx_spi_acpi_match[] = {
+	{ "80860F0E", LPSS_BYT_SSP },
+	{ "8086228E", LPSS_BSW_SSP },
+	{ "INT33C0", LPSS_LPT_SSP },
+	{ "INT33C1", LPSS_LPT_SSP },
+	{ "INT3430", LPSS_LPT_SSP },
+	{ "INT3431", LPSS_LPT_SSP },
+	{}
+};
+MODULE_DEVICE_TABLE(acpi, pxa2xx_spi_acpi_match);
+#endif
+
+static const struct of_device_id pxa2xx_spi_of_match[] = {
+	{ .compatible = "marvell,mmp2-ssp", .data = (void *)MMP2_SSP },
+	{}
+};
+MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
+
 static struct platform_driver driver = {
 	.driver = {
 		.name	= "pxa2xx-spi",
-- 
2.35.1

[PATCH v4 3/5] spi: pxa2xx: Move OF and ACPI ID tables closer to their user

[Andy Shevchenko]

There is no code that uses ID tables directly, except the
struct device_driver at the end of the file. Hence, move
tables closer to its user. It's always possible to access
them via pointer to a platform device.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/spi/spi-pxa2xx.c | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 96c9bb7925de..0824965e894d 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1321,25 +1321,6 @@ static void cleanup(struct spi_device *spi)
 	kfree(chip);
 }
 
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id pxa2xx_spi_acpi_match[] = {
-	{ "INT33C0", LPSS_LPT_SSP },
-	{ "INT33C1", LPSS_LPT_SSP },
-	{ "INT3430", LPSS_LPT_SSP },
-	{ "INT3431", LPSS_LPT_SSP },
-	{ "80860F0E", LPSS_BYT_SSP },
-	{ "8086228E", LPSS_BSW_SSP },
-	{ },
-};
-MODULE_DEVICE_TABLE(acpi, pxa2xx_spi_acpi_match);
-#endif
-
-static const struct of_device_id pxa2xx_spi_of_match[] = {
-	{ .compatible = "marvell,mmp2-ssp", .data = (void *)MMP2_SSP },
-	{},
-};
-MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
-
 static bool pxa2xx_spi_idma_filter(struct dma_chan *chan, void *param)
 {
 	return param == chan->device->dev;
@@ -1765,6 +1746,25 @@ static const struct dev_pm_ops pxa2xx_spi_pm_ops = {
 			   pxa2xx_spi_runtime_resume, NULL)
 };
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id pxa2xx_spi_acpi_match[] = {
+	{ "80860F0E", LPSS_BYT_SSP },
+	{ "8086228E", LPSS_BSW_SSP },
+	{ "INT33C0", LPSS_LPT_SSP },
+	{ "INT33C1", LPSS_LPT_SSP },
+	{ "INT3430", LPSS_LPT_SSP },
+	{ "INT3431", LPSS_LPT_SSP },
+	{}
+};
+MODULE_DEVICE_TABLE(acpi, pxa2xx_spi_acpi_match);
+#endif
+
+static const struct of_device_id pxa2xx_spi_of_match[] = {
+	{ .compatible = "marvell,mmp2-ssp", .data = (void *)MMP2_SSP },
+	{}
+};
+MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
+
 static struct platform_driver driver = {
 	.driver = {
 		.name	= "pxa2xx-spi",
-- 
2.35.1


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[PATCH v4 4/5] spi: pxa2xx: Consistently use dev variable in pxa2xx_spi_init_pdata()

[Andy Shevchenko]

We have a temporary variable to keep a pointer to a struct device in
the pxa2xx_spi_init_pdata(). Use it consistently there.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-pxa2xx.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 0824965e894d..00c07e93d414 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1349,7 +1349,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 			return ERR_PTR(status);
 	}
 
-	match = device_get_match_data(&pdev->dev);
+	match = device_get_match_data(dev);
 	if (match)
 		type = (enum pxa_ssp_type)match;
 	else if (value > SSP_UNDEFINED && value < SSP_MAX)
@@ -1357,7 +1357,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	else
 		return ERR_PTR(-EINVAL);
 
-	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
 		return ERR_PTR(-ENOMEM);
 
@@ -1376,7 +1376,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 		pdata->dma_filter = pxa2xx_spi_idma_filter;
 	}
 
-	ssp->clk = devm_clk_get(&pdev->dev, NULL);
+	ssp->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(ssp->clk))
 		return ERR_CAST(ssp->clk);
 
@@ -1385,7 +1385,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 		return ERR_PTR(ssp->irq);
 
 	ssp->type = type;
-	ssp->dev = &pdev->dev;
+	ssp->dev = dev;
 
 	status = acpi_dev_uid_to_integer(ACPI_COMPANION(dev), &uid);
 	if (status)
@@ -1393,7 +1393,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	else
 		ssp->port_id = uid;
 
-	pdata->is_slave = device_property_read_bool(&pdev->dev, "spi-slave");
+	pdata->is_slave = device_property_read_bool(dev, "spi-slave");
 	pdata->num_chipselect = 1;
 	pdata->enable_dma = true;
 	pdata->dma_burst_size = 1;
-- 
2.35.1

[PATCH v4 4/5] spi: pxa2xx: Consistently use dev variable in pxa2xx_spi_init_pdata()

[Andy Shevchenko]

We have a temporary variable to keep a pointer to a struct device in
the pxa2xx_spi_init_pdata(). Use it consistently there.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-pxa2xx.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 0824965e894d..00c07e93d414 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1349,7 +1349,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 			return ERR_PTR(status);
 	}
 
-	match = device_get_match_data(&pdev->dev);
+	match = device_get_match_data(dev);
 	if (match)
 		type = (enum pxa_ssp_type)match;
 	else if (value > SSP_UNDEFINED && value < SSP_MAX)
@@ -1357,7 +1357,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	else
 		return ERR_PTR(-EINVAL);
 
-	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
 		return ERR_PTR(-ENOMEM);
 
@@ -1376,7 +1376,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 		pdata->dma_filter = pxa2xx_spi_idma_filter;
 	}
 
-	ssp->clk = devm_clk_get(&pdev->dev, NULL);
+	ssp->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(ssp->clk))
 		return ERR_CAST(ssp->clk);
 
@@ -1385,7 +1385,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 		return ERR_PTR(ssp->irq);
 
 	ssp->type = type;
-	ssp->dev = &pdev->dev;
+	ssp->dev = dev;
 
 	status = acpi_dev_uid_to_integer(ACPI_COMPANION(dev), &uid);
 	if (status)
@@ -1393,7 +1393,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev)
 	else
 		ssp->port_id = uid;
 
-	pdata->is_slave = device_property_read_bool(&pdev->dev, "spi-slave");
+	pdata->is_slave = device_property_read_bool(dev, "spi-slave");
 	pdata->num_chipselect = 1;
 	pdata->enable_dma = true;
 	pdata->dma_burst_size = 1;
-- 
2.35.1


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[PATCH v4 5/5] spi: pxa2xx: Switch from PM ifdeffery to pm_ptr()

[Andy Shevchenko]

Cleaning up the driver to use pm_ptr() macro instead of ifdeffery
that makes it simpler and allows the compiler to remove those functions
if built without CONFIG_PM and CONFIG_PM_SLEEP support.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/spi/spi-pxa2xx.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 00c07e93d414..d47c14c89ff4 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1686,7 +1686,6 @@ static int pxa2xx_spi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int pxa2xx_spi_suspend(struct device *dev)
 {
 	struct driver_data *drv_data = dev_get_drvdata(dev);
@@ -1721,9 +1720,7 @@ static int pxa2xx_spi_resume(struct device *dev)
 	/* Start the queue running */
 	return spi_controller_resume(drv_data->controller);
 }
-#endif
 
-#ifdef CONFIG_PM
 static int pxa2xx_spi_runtime_suspend(struct device *dev)
 {
 	struct driver_data *drv_data = dev_get_drvdata(dev);
@@ -1738,12 +1735,10 @@ static int pxa2xx_spi_runtime_resume(struct device *dev)
 
 	return clk_prepare_enable(drv_data->ssp->clk);
 }
-#endif
 
 static const struct dev_pm_ops pxa2xx_spi_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(pxa2xx_spi_suspend, pxa2xx_spi_resume)
-	SET_RUNTIME_PM_OPS(pxa2xx_spi_runtime_suspend,
-			   pxa2xx_spi_runtime_resume, NULL)
+	SYSTEM_SLEEP_PM_OPS(pxa2xx_spi_suspend, pxa2xx_spi_resume)
+	RUNTIME_PM_OPS(pxa2xx_spi_runtime_suspend, pxa2xx_spi_runtime_resume, NULL)
 };
 
 #ifdef CONFIG_ACPI
@@ -1768,7 +1763,7 @@ MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
 static struct platform_driver driver = {
 	.driver = {
 		.name	= "pxa2xx-spi",
-		.pm	= &pxa2xx_spi_pm_ops,
+		.pm	= pm_ptr(&pxa2xx_spi_pm_ops),
 		.acpi_match_table = ACPI_PTR(pxa2xx_spi_acpi_match),
 		.of_match_table = of_match_ptr(pxa2xx_spi_of_match),
 	},
-- 
2.35.1

[PATCH v4 5/5] spi: pxa2xx: Switch from PM ifdeffery to pm_ptr()

[Andy Shevchenko]

Cleaning up the driver to use pm_ptr() macro instead of ifdeffery
that makes it simpler and allows the compiler to remove those functions
if built without CONFIG_PM and CONFIG_PM_SLEEP support.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/spi/spi-pxa2xx.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 00c07e93d414..d47c14c89ff4 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1686,7 +1686,6 @@ static int pxa2xx_spi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int pxa2xx_spi_suspend(struct device *dev)
 {
 	struct driver_data *drv_data = dev_get_drvdata(dev);
@@ -1721,9 +1720,7 @@ static int pxa2xx_spi_resume(struct device *dev)
 	/* Start the queue running */
 	return spi_controller_resume(drv_data->controller);
 }
-#endif
 
-#ifdef CONFIG_PM
 static int pxa2xx_spi_runtime_suspend(struct device *dev)
 {
 	struct driver_data *drv_data = dev_get_drvdata(dev);
@@ -1738,12 +1735,10 @@ static int pxa2xx_spi_runtime_resume(struct device *dev)
 
 	return clk_prepare_enable(drv_data->ssp->clk);
 }
-#endif
 
 static const struct dev_pm_ops pxa2xx_spi_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(pxa2xx_spi_suspend, pxa2xx_spi_resume)
-	SET_RUNTIME_PM_OPS(pxa2xx_spi_runtime_suspend,
-			   pxa2xx_spi_runtime_resume, NULL)
+	SYSTEM_SLEEP_PM_OPS(pxa2xx_spi_suspend, pxa2xx_spi_resume)
+	RUNTIME_PM_OPS(pxa2xx_spi_runtime_suspend, pxa2xx_spi_runtime_resume, NULL)
 };
 
 #ifdef CONFIG_ACPI
@@ -1768,7 +1763,7 @@ MODULE_DEVICE_TABLE(of, pxa2xx_spi_of_match);
 static struct platform_driver driver = {
 	.driver = {
 		.name	= "pxa2xx-spi",
-		.pm	= &pxa2xx_spi_pm_ops,
+		.pm	= pm_ptr(&pxa2xx_spi_pm_ops),
 		.acpi_match_table = ACPI_PTR(pxa2xx_spi_acpi_match),
 		.of_match_table = of_match_ptr(pxa2xx_spi_of_match),
 	},
-- 
2.35.1


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Re: [PATCH v4 1/5] spi: pxa2xx: Respect Intel SSP type given by a property

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1213 bytes --]

On Thu, Oct 20, 2022 at 10:44:56PM +0300, Andy Shevchenko wrote:

> Allow to set the Intel SSP type by reading the property.
> Only apply this to the known MFD enumerated devices.

> +	/* For MFD enumerated devices always ask for a property */
> +	mfd_enumerated = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpss_priv");
> +	if (mfd_enumerated) {
> +		status = device_property_read_u32(dev, "intel,spi-pxa2xx-type", &value);
> +		if (status)
> +			return ERR_PTR(status);
> +	}
> +
>  	if (pcidev)
>  		pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match, pcidev);
>  
>  	match = device_get_match_data(&pdev->dev);
>  	if (match)
>  		type = (enum pxa_ssp_type)match;
> +	else if (value > SSP_UNDEFINED && value < SSP_MAX)
> +		type = (enum pxa_ssp_type)value;

This is quite hard to follow, partly because value isn't exactly a clear
variable name and partly because the initialisation to SSP_UNDEFINED,
the attempt to read via device property and this if/else chain are split
up and not clearly joined up with each other.  This is partly an issue
with the existing code but the extra layer of spreading things
throughout the function being added amplifies things a bit.

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Re: [PATCH v4 1/5] spi: pxa2xx: Respect Intel SSP type given by a property

[Mark Brown]

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On Thu, Oct 20, 2022 at 10:44:56PM +0300, Andy Shevchenko wrote:

> Allow to set the Intel SSP type by reading the property.
> Only apply this to the known MFD enumerated devices.

> +	/* For MFD enumerated devices always ask for a property */
> +	mfd_enumerated = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpss_priv");
> +	if (mfd_enumerated) {
> +		status = device_property_read_u32(dev, "intel,spi-pxa2xx-type", &value);
> +		if (status)
> +			return ERR_PTR(status);
> +	}
> +
>  	if (pcidev)
>  		pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match, pcidev);
>  
>  	match = device_get_match_data(&pdev->dev);
>  	if (match)
>  		type = (enum pxa_ssp_type)match;
> +	else if (value > SSP_UNDEFINED && value < SSP_MAX)
> +		type = (enum pxa_ssp_type)value;

This is quite hard to follow, partly because value isn't exactly a clear
variable name and partly because the initialisation to SSP_UNDEFINED,
the attempt to read via device property and this if/else chain are split
up and not clearly joined up with each other.  This is partly an issue
with the existing code but the extra layer of spreading things
throughout the function being added amplifies things a bit.

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Re: [PATCH v4 1/5] spi: pxa2xx: Respect Intel SSP type given by a property

[Andy Shevchenko]

On Fri, Oct 21, 2022 at 01:16:01PM +0100, Mark Brown wrote:
> On Thu, Oct 20, 2022 at 10:44:56PM +0300, Andy Shevchenko wrote:
> 
> > Allow to set the Intel SSP type by reading the property.
> > Only apply this to the known MFD enumerated devices.
> 
> > +	/* For MFD enumerated devices always ask for a property */
> > +	mfd_enumerated = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpss_priv");
> > +	if (mfd_enumerated) {
> > +		status = device_property_read_u32(dev, "intel,spi-pxa2xx-type", &value);
> > +		if (status)
> > +			return ERR_PTR(status);
> > +	}
> > +
> >  	if (pcidev)
> >  		pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match, pcidev);
> >  
> >  	match = device_get_match_data(&pdev->dev);
> >  	if (match)
> >  		type = (enum pxa_ssp_type)match;
> > +	else if (value > SSP_UNDEFINED && value < SSP_MAX)
> > +		type = (enum pxa_ssp_type)value;
> 
> This is quite hard to follow, partly because value isn't exactly a clear
> variable name and partly because the initialisation to SSP_UNDEFINED,
> the attempt to read via device property and this if/else chain are split
> up and not clearly joined up with each other.  This is partly an issue
> with the existing code but the extra layer of spreading things
> throughout the function being added amplifies things a bit.

The next patch removes the PCI part in this equation, at the end there is
no "new" complexity on top of the existing one. But I'm all ears on how
to simplify the existing code.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v4 1/5] spi: pxa2xx: Respect Intel SSP type given by a property

[Andy Shevchenko]

On Fri, Oct 21, 2022 at 01:16:01PM +0100, Mark Brown wrote:
> On Thu, Oct 20, 2022 at 10:44:56PM +0300, Andy Shevchenko wrote:
> 
> > Allow to set the Intel SSP type by reading the property.
> > Only apply this to the known MFD enumerated devices.
> 
> > +	/* For MFD enumerated devices always ask for a property */
> > +	mfd_enumerated = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpss_priv");
> > +	if (mfd_enumerated) {
> > +		status = device_property_read_u32(dev, "intel,spi-pxa2xx-type", &value);
> > +		if (status)
> > +			return ERR_PTR(status);
> > +	}
> > +
> >  	if (pcidev)
> >  		pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match, pcidev);
> >  
> >  	match = device_get_match_data(&pdev->dev);
> >  	if (match)
> >  		type = (enum pxa_ssp_type)match;
> > +	else if (value > SSP_UNDEFINED && value < SSP_MAX)
> > +		type = (enum pxa_ssp_type)value;
> 
> This is quite hard to follow, partly because value isn't exactly a clear
> variable name and partly because the initialisation to SSP_UNDEFINED,
> the attempt to read via device property and this if/else chain are split
> up and not clearly joined up with each other.  This is partly an issue
> with the existing code but the extra layer of spreading things
> throughout the function being added amplifies things a bit.

The next patch removes the PCI part in this equation, at the end there is
no "new" complexity on top of the existing one. But I'm all ears on how
to simplify the existing code.

-- 
With Best Regards,
Andy Shevchenko



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Re: (subset) [PATCH v4 0/5] spi: pxa2xx: Pass the SSP type via device property

[Mark Brown]

On Thu, 20 Oct 2022 22:44:55 +0300, Andy Shevchenko wrote:
> Currently the SPI PXA2xx devices on Intel platforms can be instantiated
> via the following paths:
>  1) as ACPI LPSS device on Haswell, Bay Trail and Cherry Trail;
>  2) as ACPI LPSS device on the Sky Lake and newer;
>  3) as PCI LPSS device on Haswell, Bay Trail and Cherry Trail;
>  4) as PCI LPSS device on the Sky Lake and newer;
>  5) as PCI device via ID table.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next

Thanks!

[4/5] spi: pxa2xx: Consistently use dev variable in pxa2xx_spi_init_pdata()
      commit: 8fc8250a1586008cceaadd6f4df9db23643d4b3e
[5/5] spi: pxa2xx: Switch from PM ifdeffery to pm_ptr()
      commit: 6c3c438c085b2cd79b3291b67f8f7ece62371947

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

Re: (subset) [PATCH v4 0/5] spi: pxa2xx: Pass the SSP type via device property

[Mark Brown]

On Thu, 20 Oct 2022 22:44:55 +0300, Andy Shevchenko wrote:
> Currently the SPI PXA2xx devices on Intel platforms can be instantiated
> via the following paths:
>  1) as ACPI LPSS device on Haswell, Bay Trail and Cherry Trail;
>  2) as ACPI LPSS device on the Sky Lake and newer;
>  3) as PCI LPSS device on Haswell, Bay Trail and Cherry Trail;
>  4) as PCI LPSS device on the Sky Lake and newer;
>  5) as PCI device via ID table.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next

Thanks!

[4/5] spi: pxa2xx: Consistently use dev variable in pxa2xx_spi_init_pdata()
      commit: 8fc8250a1586008cceaadd6f4df9db23643d4b3e
[5/5] spi: pxa2xx: Switch from PM ifdeffery to pm_ptr()
      commit: 6c3c438c085b2cd79b3291b67f8f7ece62371947

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

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