[PATCH AUTOSEL 4.19 002/123] spi: uniphier: fix incorrect property items

[PATCH AUTOSEL 4.19 002/123] spi: uniphier: fix incorrect property items

[Sasha Levin]

From: Keiji Hayashibara <hayashibara.keiji@socionext.com>

[ Upstream commit 3511ba7d4ca6f39e2d060bb94e42a41ad1fee7bf ]

This commit fixes incorrect property because it was different
from the actual.
The parameters of '#address-cells' and '#size-cells' were removed,
and 'interrupts', 'pinctrl-names' and 'pinctrl-0' were added.

Fixes: 4dcd5c2781f3 ("spi: add DT bindings for UniPhier SPI controller")
Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../devicetree/bindings/spi/spi-uniphier.txt       | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/spi-uniphier.txt b/Documentation/devicetree/bindings/spi/spi-uniphier.txt
index 504a4ecfc7b1..b04e66a52de5 100644
--- a/Documentation/devicetree/bindings/spi/spi-uniphier.txt
+++ b/Documentation/devicetree/bindings/spi/spi-uniphier.txt
@@ -5,18 +5,20 @@ UniPhier SoCs have SCSSI which supports SPI single channel.
 Required properties:
  - compatible: should be "socionext,uniphier-scssi"
  - reg: address and length of the spi master registers
- - #address-cells: must be <1>, see spi-bus.txt
- - #size-cells: must be <0>, see spi-bus.txt
- - clocks: A phandle to the clock for the device.
- - resets: A phandle to the reset control for the device.
+ - interrupts: a single interrupt specifier
+ - pinctrl-names: should be "default"
+ - pinctrl-0: pin control state for the default mode
+ - clocks: a phandle to the clock for the device
+ - resets: a phandle to the reset control for the device
 
 Example:
 
 spi0: spi@54006000 {
 	compatible = "socionext,uniphier-scssi";
 	reg = <0x54006000 0x100>;
-	#address-cells = <1>;
-	#size-cells = <0>;
+	interrupts = <0 39 4>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi0>;
 	clocks = <&peri_clk 11>;
 	resets = <&peri_rst 11>;
 };
-- 
2.17.1

[PATCH AUTOSEL 4.19 037/123] spi: omap2-mcspi: Add missing suspend and resume calls

[Sasha Levin]

From: Tony Lindgren <tony@atomide.com>

[ Upstream commit 91b9deefedf4c35a01027ce38bed7299605026a3 ]

I've been wondering still about omap2-mcspi related suspend and resume
flakeyness and looks like we're missing calls to spi_master_suspend()
and spi_master_resume(). Adding those and using pm_runtime_force_suspend()
and pm_runtime_force_resume() makes things work for suspend and resume
and allows us to stop using noirq suspend and resume.

And while at it, let's use SET_SYSTEM_SLEEP_PM_OPS to simplify things
further.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-omap2-mcspi.c | 37 +++++++++++++++++++++++------------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 508c61c669e7..e2be7da74343 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1455,13 +1455,26 @@ static int omap2_mcspi_remove(struct platform_device *pdev)
 /* work with hotplug and coldplug */
 MODULE_ALIAS("platform:omap2_mcspi");
 
-#ifdef	CONFIG_SUSPEND
-static int omap2_mcspi_suspend_noirq(struct device *dev)
+static int __maybe_unused omap2_mcspi_suspend(struct device *dev)
 {
-	return pinctrl_pm_select_sleep_state(dev);
+	struct spi_master *master = dev_get_drvdata(dev);
+	struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
+	int error;
+
+	error = pinctrl_pm_select_sleep_state(dev);
+	if (error)
+		dev_warn(mcspi->dev, "%s: failed to set pins: %i\n",
+			 __func__, error);
+
+	error = spi_master_suspend(master);
+	if (error)
+		dev_warn(mcspi->dev, "%s: master suspend failed: %i\n",
+			 __func__, error);
+
+	return pm_runtime_force_suspend(dev);
 }
 
-static int omap2_mcspi_resume_noirq(struct device *dev)
+static int __maybe_unused omap2_mcspi_resume(struct device *dev)
 {
 	struct spi_master *master = dev_get_drvdata(dev);
 	struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
@@ -1472,17 +1485,17 @@ static int omap2_mcspi_resume_noirq(struct device *dev)
 		dev_warn(mcspi->dev, "%s: failed to set pins: %i\n",
 			 __func__, error);
 
-	return 0;
-}
+	error = spi_master_resume(master);
+	if (error)
+		dev_warn(mcspi->dev, "%s: master resume failed: %i\n",
+			 __func__, error);
 
-#else
-#define omap2_mcspi_suspend_noirq	NULL
-#define omap2_mcspi_resume_noirq	NULL
-#endif
+	return pm_runtime_force_resume(dev);
+}
 
 static const struct dev_pm_ops omap2_mcspi_pm_ops = {
-	.suspend_noirq = omap2_mcspi_suspend_noirq,
-	.resume_noirq = omap2_mcspi_resume_noirq,
+	SET_SYSTEM_SLEEP_PM_OPS(omap2_mcspi_suspend,
+				omap2_mcspi_resume)
 	.runtime_resume	= omap_mcspi_runtime_resume,
 };
 
-- 
2.17.1

Re: [PATCH AUTOSEL 4.19 002/123] spi: uniphier: fix incorrect property items

[Mark Brown]

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On Wed, Dec 05, 2018 at 04:33:54AM -0500, Sasha Levin wrote:
> From: Keiji Hayashibara <hayashibara.keiji@socionext.com>
> 
> [ Upstream commit 3511ba7d4ca6f39e2d060bb94e42a41ad1fee7bf ]
> 
> This commit fixes incorrect property because it was different
> from the actual.
> The parameters of '#address-cells' and '#size-cells' were removed,
> and 'interrupts', 'pinctrl-names' and 'pinctrl-0' were added.

Not sure we should be backporting documentation changes like this to
stable, especially not without accompanying code changes...

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Re: [PATCH AUTOSEL 4.19 002/123] spi: uniphier: fix incorrect property items

[Sasha Levin]

On Wed, Dec 05, 2018 at 11:38:20AM +0000, Mark Brown wrote:
>On Wed, Dec 05, 2018 at 04:33:54AM -0500, Sasha Levin wrote:
>> From: Keiji Hayashibara <hayashibara.keiji@socionext.com>
>>
>> [ Upstream commit 3511ba7d4ca6f39e2d060bb94e42a41ad1fee7bf ]
>>
>> This commit fixes incorrect property because it was different
>> from the actual.
>> The parameters of '#address-cells' and '#size-cells' were removed,
>> and 'interrupts', 'pinctrl-names' and 'pinctrl-0' were added.
>
>Not sure we should be backporting documentation changes like this to
>stable, especially not without accompanying code changes...

Dropped, thank you.