[PATCH 0/5] Enable mvebu pinctrl/gpio for Dove and Kirkwood

[PATCH 0/5] Enable mvebu pinctrl/gpio for Dove and Kirkwood

[Andrew Lunn]

This is the first step in converting Dove and Kirkwood boards to use
pinctrl. Allow the MVEBU pinctrl driver and GPIO driver to be used by
these two SoC families.

Andrew Lunn (2):
  ARM: Kirkwood: Allow use of pinctrl
  ARM: Kirkwood: Allow use of MVEBU GPIO driver.

Sebastian Hesselbarth (3):
  pinctrl: dove: fix iomem and pdma clock
  ARM: Dove: Make use of pinctrl driver
  ARM: Dove: Make use of MVEBU GPIO driver

 arch/arm/Kconfig                |    6 ++++++
 arch/arm/boot/dts/dove.dtsi     |   19 ++++++++++++++++---
 arch/arm/boot/dts/kirkwood.dtsi |   11 +++++++++--
 arch/arm/plat-orion/irq.c       |    5 +----
 drivers/gpio/Kconfig            |    2 +-
 drivers/pinctrl/Kconfig         |    2 +-
 drivers/pinctrl/pinctrl-dove.c  |   20 +++++++++++++-------
 7 files changed, 47 insertions(+), 18 deletions(-)

-- 
1.7.10.4

[PATCH 1/5] ARM: Kirkwood: Allow use of pinctrl

[Andrew Lunn]

We now have a pinctrl driver for arch-mvebu. It supports kirkwood out
of the box. Allow ARCH_KIRKWOOD to select it, and make ARCH_KIRKWOOD
select it. This then allows the convertion of board-*.c files away
from MPP to pinctrl in DT, before they get moved over into mach-mvebu.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
 arch/arm/Kconfig        |    2 ++
 drivers/pinctrl/Kconfig |    2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 73067ef..160cd40 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -548,6 +548,8 @@ config ARCH_KIRKWOOD
 	select GENERIC_CLOCKEVENTS
 	select PCI
 	select PLAT_ORION_LEGACY
+	select PINCTRL
+	select PINCTRL_KIRKWOOD
 	help
 	  Support for the following Marvell Kirkwood series SoCs:
 	  88F6180, 88F6192 and 88F6281.
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 7bf914d..5682c96 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -188,7 +188,7 @@ config PINCTRL_EXYNOS4
 
 config PINCTRL_MVEBU
 	bool
-	depends on ARCH_MVEBU
+	depends on ARCH_MVEBU || ARCH_KIRKWOOD
 	select PINMUX
 	select PINCONF
 
-- 
1.7.10.4

[PATCH 2/5] ARM: Kirkwood: Allow use of MVEBU GPIO driver.

[Andrew Lunn]

This GPIO driver is generic to all Marvel Orion/XP/370 SoCs. Allow
Kirkwood to enable and use it. Fix the kirkwood DT to pass the
expected properties and remove the old gpio probing code.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
 arch/arm/Kconfig                |    1 +
 arch/arm/boot/dts/kirkwood.dtsi |   11 +++++++++--
 arch/arm/plat-orion/irq.c       |    5 +----
 drivers/gpio/Kconfig            |    2 +-
 4 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 160cd40..0203af8 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -544,6 +544,7 @@ config ARCH_DOVE
 config ARCH_KIRKWOOD
 	bool "Marvell Kirkwood"
 	select ARCH_REQUIRE_GPIOLIB
+	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select CPU_FEROCEON
 	select GENERIC_CLOCKEVENTS
 	select PCI
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index 4e5b815..5bc7a8b 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -4,6 +4,11 @@
 	compatible = "marvell,kirkwood";
 	interrupt-parent = <&intc>;
 
+	aliases {
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+	};
+
 	intc: interrupt-controller {
 		compatible = "marvell,orion-intc", "marvell,intc";
 		interrupt-controller;
@@ -24,7 +29,8 @@
 			#gpio-cells = <2>;
 			gpio-controller;
 			reg = <0x10100 0x40>;
-			ngpio = <32>;
+			ngpios = <32>;
+			interrupt-controller;
 			interrupts = <35>, <36>, <37>, <38>;
 		};
 
@@ -33,7 +39,8 @@
 			#gpio-cells = <2>;
 			gpio-controller;
 			reg = <0x10140 0x40>;
-			ngpio = <18>;
+			ngpios = <18>;
+			interrupt-controller;
 			interrupts = <39>, <40>, <41>;
 		};
 
diff --git a/arch/arm/plat-orion/irq.c b/arch/arm/plat-orion/irq.c
index 1867944..eec296a 100644
--- a/arch/arm/plat-orion/irq.c
+++ b/arch/arm/plat-orion/irq.c
@@ -41,7 +41,7 @@ void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
 static int __init orion_add_irq_domain(struct device_node *np,
 				       struct device_node *interrupt_parent)
 {
-	int i = 0, irq_gpio;
+	int i = 0;
 	void __iomem *base;
 
 	do {
@@ -55,9 +55,6 @@ static int __init orion_add_irq_domain(struct device_node *np,
 	irq_domain_add_legacy(np, i * 32, 0, 0,
 			      &irq_domain_simple_ops, NULL);
 
-	irq_gpio = i * 32;
-	orion_gpio_of_init(irq_gpio);
-
 	return 0;
 }
 
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index d055cee..2155aef 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -152,7 +152,7 @@ config GPIO_MSM_V2
 
 config GPIO_MVEBU
 	def_bool y
-	depends on ARCH_MVEBU
+	depends on ARCH_MVEBU || ARCH_KIRKWOOD
 	select GPIO_GENERIC
 	select GENERIC_IRQ_CHIP
 
-- 
1.7.10.4

[PATCH 3/5] pinctrl: dove: fix iomem and pdma clock

[Andrew Lunn]

From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

Since 3.7 readl/writel require register addresses to be const void*
instead of unsigned int. The register addresses are converted using
IOMEM() and offsets are added instead of OR'ed.
Also a workaround for the pdma clock is added, that is required as
there is still no DT clock provider available on Dove.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
 drivers/pinctrl/pinctrl-dove.c |   20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-dove.c b/drivers/pinctrl/pinctrl-dove.c
index ffe74b2..70befaa 100644
--- a/drivers/pinctrl/pinctrl-dove.c
+++ b/drivers/pinctrl/pinctrl-dove.c
@@ -22,22 +22,22 @@
 
 #include "pinctrl-mvebu.h"
 
-#define DOVE_SB_REGS_VIRT_BASE		0xfde00000
-#define DOVE_MPP_VIRT_BASE		(DOVE_SB_REGS_VIRT_BASE | 0xd0200)
+#define DOVE_SB_REGS_VIRT_BASE		IOMEM(0xfde00000)
+#define DOVE_MPP_VIRT_BASE		(DOVE_SB_REGS_VIRT_BASE + 0xd0200)
 #define DOVE_PMU_MPP_GENERAL_CTRL	(DOVE_MPP_VIRT_BASE + 0x10)
 #define  DOVE_AU0_AC97_SEL		BIT(16)
-#define DOVE_GLOBAL_CONFIG_1		(DOVE_SB_REGS_VIRT_BASE | 0xe802C)
+#define DOVE_GLOBAL_CONFIG_1		(DOVE_SB_REGS_VIRT_BASE + 0xe802C)
 #define  DOVE_TWSI_ENABLE_OPTION1	BIT(7)
-#define DOVE_GLOBAL_CONFIG_2		(DOVE_SB_REGS_VIRT_BASE | 0xe8030)
+#define DOVE_GLOBAL_CONFIG_2		(DOVE_SB_REGS_VIRT_BASE + 0xe8030)
 #define  DOVE_TWSI_ENABLE_OPTION2	BIT(20)
 #define  DOVE_TWSI_ENABLE_OPTION3	BIT(21)
 #define  DOVE_TWSI_OPTION3_GPIO		BIT(22)
-#define DOVE_SSP_CTRL_STATUS_1		(DOVE_SB_REGS_VIRT_BASE | 0xe8034)
+#define DOVE_SSP_CTRL_STATUS_1		(DOVE_SB_REGS_VIRT_BASE + 0xe8034)
 #define  DOVE_SSP_ON_AU1		BIT(0)
-#define DOVE_MPP_GENERAL_VIRT_BASE	(DOVE_SB_REGS_VIRT_BASE | 0xe803c)
+#define DOVE_MPP_GENERAL_VIRT_BASE	(DOVE_SB_REGS_VIRT_BASE + 0xe803c)
 #define  DOVE_AU1_SPDIFO_GPIO_EN	BIT(1)
 #define  DOVE_NAND_GPIO_EN		BIT(0)
-#define DOVE_GPIO_LO_VIRT_BASE		(DOVE_SB_REGS_VIRT_BASE | 0xd0400)
+#define DOVE_GPIO_LO_VIRT_BASE		(DOVE_SB_REGS_VIRT_BASE + 0xd0400)
 #define DOVE_MPP_CTRL4_VIRT_BASE	(DOVE_GPIO_LO_VIRT_BASE + 0x40)
 #define  DOVE_SPI_GPIO_SEL		BIT(5)
 #define  DOVE_UART1_GPIO_SEL		BIT(4)
@@ -587,6 +587,12 @@ static int __devinit dove_pinctrl_probe(struct platform_device *pdev)
 	 * grab clk to make sure it is ticking.
 	 */
 	clk = devm_clk_get(&pdev->dev, NULL);
+
+	/* Currently there is no DT clock provider for pdma clock,
+	   this fallback ensures pdma clock is ticking */
+	if (IS_ERR(clk))
+		clk = clk_get_sys("dove-pdma", NULL);
+
 	if (!IS_ERR(clk))
 		clk_prepare_enable(clk);
 
-- 
1.7.10.4

[PATCH 4/5] ARM: Dove: Make use of pinctrl driver

[Andrew Lunn]

From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

Allow ARCH_DOVE to select pinctrl-mvebu with support for Dove SoC.
With the now enabled pinctrl driver also add the corresponding DT node
to Dove DT.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
 arch/arm/Kconfig            |    2 ++
 arch/arm/boot/dts/dove.dtsi |    5 +++++
 drivers/pinctrl/Kconfig     |    2 +-
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0203af8..b12d1dd 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -537,6 +537,8 @@ config ARCH_DOVE
 	select GENERIC_CLOCKEVENTS
 	select MIGHT_HAVE_PCI
 	select PLAT_ORION_LEGACY
+	select PINCTRL
+	select PINCTRL_DOVE
 	select USB_ARCH_HAS_EHCI
 	help
 	  Support for the Marvell Dove SoC 88AP510
diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 5a00022..1617c0c 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -67,6 +67,11 @@
 			status = "disabled";
 		};
 
+		pinctrl: pinctrl at d0200 {
+			compatible = "marvell,dove-pinctrl";
+			reg = <0xd0200 0x20>;
+		};
+
 		gpio0: gpio at d0400 {
 			compatible = "marvell,orion-gpio";
 			#gpio-cells = <2>;
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 5682c96..463100c 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -188,7 +188,7 @@ config PINCTRL_EXYNOS4
 
 config PINCTRL_MVEBU
 	bool
-	depends on ARCH_MVEBU || ARCH_KIRKWOOD
+	depends on ARCH_MVEBU || ARCH_KIRKWOOD || ARCH_DOVE
 	select PINMUX
 	select PINCONF
 
-- 
1.7.10.4

[PATCH 5/5] ARM: Dove: Make use of MVEBU GPIO driver

[Andrew Lunn]

From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

The MVEBU driver is generic to all Marvell Orion/XP/370 SoCs. Allow
Dove DT to enable and use it. Also fix dove DT to pass the expected
properties and add gpio aliases.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
 arch/arm/Kconfig            |    1 +
 arch/arm/boot/dts/dove.dtsi |   14 +++++++++++---
 drivers/gpio/Kconfig        |    2 +-
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b12d1dd..bde1015 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -533,6 +533,7 @@ config ARCH_IXP4XX
 config ARCH_DOVE
 	bool "Marvell Dove"
 	select ARCH_REQUIRE_GPIOLIB
+	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
 	select MIGHT_HAVE_PCI
diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 1617c0c..f101323 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -4,6 +4,12 @@
 	compatible = "marvell,dove";
 	model = "Marvell Armada 88AP510 SoC";
 
+	aliases {
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+		gpio2 = &gpio2;
+	};
+
 	soc at f1000000 {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -77,7 +83,8 @@
 			#gpio-cells = <2>;
 			gpio-controller;
 			reg = <0xd0400 0x20>;
-			ngpio = <32>;
+			ngpios = <32>;
+			interrupt-controller;
 			interrupts = <12>, <13>, <14>, <60>;
 		};
 
@@ -86,7 +93,8 @@
 			#gpio-cells = <2>;
 			gpio-controller;
 			reg = <0xd0420 0x20>;
-			ngpio = <32>;
+			ngpios = <32>;
+			interrupt-controller;
 			interrupts = <61>;
 		};
 
@@ -95,7 +103,7 @@
 			#gpio-cells = <2>;
 			gpio-controller;
 			reg = <0xe8400 0x0c>;
-			ngpio = <8>;
+			ngpios = <8>;
 		};
 
 		spi0: spi at 10600 {
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 2155aef..2a0c1e1 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -152,7 +152,7 @@ config GPIO_MSM_V2
 
 config GPIO_MVEBU
 	def_bool y
-	depends on ARCH_MVEBU || ARCH_KIRKWOOD
+	depends on ARCH_MVEBU || ARCH_KIRKWOOD || ARCH_DOVE
 	select GPIO_GENERIC
 	select GENERIC_IRQ_CHIP
 
-- 
1.7.10.4

[PATCH 1/5] ARM: Kirkwood: Allow use of pinctrl

[Linus Walleij]

On Wed, Oct 24, 2012 at 4:25 PM, Andrew Lunn <andrew@lunn.ch> wrote:

> We now have a pinctrl driver for arch-mvebu. It supports kirkwood out
> of the box. Allow ARCH_KIRKWOOD to select it, and make ARCH_KIRKWOOD
> select it. This then allows the convertion of board-*.c files away
> from MPP to pinctrl in DT, before they get moved over into mach-mvebu.
>
> Signed-off-by: Andrew Lunn <andrew@lunn.ch>
> ---
>  arch/arm/Kconfig        |    2 ++
>  drivers/pinctrl/Kconfig |    2 +-
>  2 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 73067ef..160cd40 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -548,6 +548,8 @@ config ARCH_KIRKWOOD
>         select GENERIC_CLOCKEVENTS
>         select PCI
>         select PLAT_ORION_LEGACY
> +       select PINCTRL
> +       select PINCTRL_KIRKWOOD

Russell just spent the end of the release cycle sorting all of these
in alphanumeric order, so keep to that. (Move above
PLAT*)

Once they look OK I'd like to get ACKs from one of the ARM
SoC maintainers so I can merge this set through the
pinctrl tree.

Yours,
Linus Walleij

[PATCH 3/5] pinctrl: dove: fix iomem and pdma clock

[Linus Walleij]

On Wed, Oct 24, 2012 at 4:25 PM, Andrew Lunn <andrew@lunn.ch> wrote:

> Since 3.7 readl/writel require register addresses to be const void*
> instead of unsigned int. The register addresses are converted using
> IOMEM() and offsets are added instead of OR'ed.
> Also a workaround for the pdma clock is added, that is required as
> there is still no DT clock provider available on Dove.

So essentially two unrelated patches squashed into one, and I
would apply the first one right off but now the clock change makes
me hesitate.

>         clk = devm_clk_get(&pdev->dev, NULL);
> +
> +       /* Currently there is no DT clock provider for pdma clock,
> +          this fallback ensures pdma clock is ticking */

/*
 * I prefer comment style like so because it's easier to read.
 * Maybe it's a bit pedantic but bear with me.
 */

> +       if (IS_ERR(clk))
> +               clk = clk_get_sys("dove-pdma", NULL);
> +

This is a horrible hack. But if the Marvell people agree about
it I will live with it.

Yours,
Linus Walleij

[PATCH 4/5] ARM: Dove: Make use of pinctrl driver

[Linus Walleij]

On Wed, Oct 24, 2012 at 4:25 PM, Andrew Lunn <andrew@lunn.ch> wrote:

>         select PLAT_ORION_LEGACY
> +       select PINCTRL
> +       select PINCTRL_DOVE

Sort alphanumeric.

Yours,
Linus Walleij

[PATCH 1/5] ARM: Kirkwood: Allow use of pinctrl

[Thomas Petazzoni]

Dear Andrew Lunn,

On Wed, 24 Oct 2012 16:25:20 +0200, Andrew Lunn wrote:

> index 7bf914d..5682c96 100644
> --- a/drivers/pinctrl/Kconfig
> +++ b/drivers/pinctrl/Kconfig
> @@ -188,7 +188,7 @@ config PINCTRL_EXYNOS4
>  
>  config PINCTRL_MVEBU
>  	bool
> -	depends on ARCH_MVEBU
> +	depends on ARCH_MVEBU || ARCH_KIRKWOOD
>  	select PINMUX
>  	select PINCONF

Linus Walleij has accepted a patch I have sent yesterday evening that
makes PINCTRL_MVEBU available for all PLAT_ORION platforms, so this
chunk is no longer needed.

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[PATCH 2/5] ARM: Kirkwood: Allow use of MVEBU GPIO driver.

[Thomas Petazzoni]

Dear Andrew Lunn,

On Wed, 24 Oct 2012 16:25:21 +0200, Andrew Lunn wrote:

>  config GPIO_MVEBU
>  	def_bool y
> -	depends on ARCH_MVEBU
> +	depends on ARCH_MVEBU || ARCH_KIRKWOOD
>  	select GPIO_GENERIC
>  	select GENERIC_IRQ_CHIP

Should we turn the depends on ARCH_MVEBU into a depends on PLAT_ORION,
like I did for the pinctrl driver (patch accepted by Linus Walleij
yesterday) ? I think the dependency on ARCH_MVEBU was making too much
of a shortcut, by assuming that we would very quickly move everybody
into mach-mvebu. As we rather decided to move gradually
mach-{kirkwood,dove,orion5x,mv78xx0} to those infrastructure while
keeping them in their respective directories, I think a dependency on
PLAT_ORION is more appropriate here.

Best regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[PATCH 3/5] pinctrl: dove: fix iomem and pdma clock

[Sebastian Hesselbarth]

On 10/25/2012 09:04 AM, Linus Walleij wrote:
> On Wed, Oct 24, 2012 at 4:25 PM, Andrew Lunn<andrew@lunn.ch>  wrote:
>
>> Since 3.7 readl/writel require register addresses to be const void*
>> instead of unsigned int. The register addresses are converted using
>> IOMEM() and offsets are added instead of OR'ed.
>> Also a workaround for the pdma clock is added, that is required as
>> there is still no DT clock provider available on Dove.
>
> So essentially two unrelated patches squashed into one, and I
> would apply the first one right off but now the clock change makes
> me hesitate.
>
>>          clk = devm_clk_get(&pdev->dev, NULL);
>> +
>> +       /* Currently there is no DT clock provider for pdma clock,
>> +          this fallback ensures pdma clock is ticking */
>
> /*
>   * I prefer comment style like so because it's easier to read.
>   * Maybe it's a bit pedantic but bear with me.
>   */
>
>> +       if (IS_ERR(clk))
>> +               clk = clk_get_sys("dove-pdma", NULL);
>> +
>
> This is a horrible hack. But if the Marvell people agree about
> it I will live with it.

Unfortunately, it is. This is an chicken-egg-problem here, no
DT clk-provider, no clocks properties..

While writing pinctrl-dove I was planing to enable it after
the clock provider but with Andrew pushing forward - for a good
reason - there comes the trouble ;)

I don't like the hack either but the clk-gate is there and
if I don't enable it pinctrl-dove will hang the SoC.

I have a clk-dove DT clk-provider in my pocket somewhere but
didn't find the time to prepare it for posting..

Sebastian

[PATCH 3/5] pinctrl: dove: fix iomem and pdma clock

[Jason Cooper]

On Thu, Oct 25, 2012 at 11:04:34AM +0200, Sebastian Hesselbarth wrote:
> On 10/25/2012 09:04 AM, Linus Walleij wrote:
> >On Wed, Oct 24, 2012 at 4:25 PM, Andrew Lunn<andrew@lunn.ch>  wrote:
> >
> >>Since 3.7 readl/writel require register addresses to be const void*
> >>instead of unsigned int. The register addresses are converted using
> >>IOMEM() and offsets are added instead of OR'ed.
> >>Also a workaround for the pdma clock is added, that is required as
> >>there is still no DT clock provider available on Dove.
> >
> >So essentially two unrelated patches squashed into one, and I
> >would apply the first one right off but now the clock change makes
> >me hesitate.
> >
> >>         clk = devm_clk_get(&pdev->dev, NULL);
> >>+
> >>+       /* Currently there is no DT clock provider for pdma clock,
> >>+          this fallback ensures pdma clock is ticking */
> >
> >/*
> >  * I prefer comment style like so because it's easier to read.
> >  * Maybe it's a bit pedantic but bear with me.
> >  */
> >
> >>+       if (IS_ERR(clk))
> >>+               clk = clk_get_sys("dove-pdma", NULL);
> >>+
> >
> >This is a horrible hack. But if the Marvell people agree about
> >it I will live with it.
> 
> Unfortunately, it is. This is an chicken-egg-problem here, no
> DT clk-provider, no clocks properties..
> 
> While writing pinctrl-dove I was planing to enable it after
> the clock provider but with Andrew pushing forward - for a good
> reason - there comes the trouble ;)
> 
> I don't like the hack either but the clk-gate is there and
> if I don't enable it pinctrl-dove will hang the SoC.
> 
> I have a clk-dove DT clk-provider in my pocket somewhere but
> didn't find the time to prepare it for posting..

Then let's split out the dove-pinctrl patches until you have that series
ready.

thx,

Jason.