[PATCH v2 0/4] berlin sdhci clock clean up

[PATCH v2 0/4] berlin sdhci clock clean up

[Jisheng Zhang]

Add or fix the optional clock property, then remove the CLK_IGNORE_UNUSED
flag for sdio clk(s).

Since v1:
  - remove the "mmc: sdhci-pxav3: fix optional clock name" patch to not
    block the clock clean up patches, will send another separate patch 
    after talking with HW people.

Jisheng Zhang (4):
  ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock
  ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1
  clk: berlin: bg2q: remove CLK_IGNORE_UNUSED flag for sdio clk
  clk: berlin: bg2: remove CLK_IGNORE_UNUSED flag for sdio clk

 arch/arm/boot/dts/berlin2q.dtsi | 8 +++++---
 drivers/clk/berlin/bg2.c        | 4 ++--
 drivers/clk/berlin/bg2q.c       | 2 +-
 3 files changed, 8 insertions(+), 6 deletions(-)

-- 
2.6.1

[PATCH v2 1/4] ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock

[Jisheng Zhang]

The optional 2nd clock is CLKID_SDIO.

Signed-off-by: Jisheng Zhang <jszhang-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
---
 arch/arm/boot/dts/berlin2q.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
index 63a4849..2cb07fa 100644
--- a/arch/arm/boot/dts/berlin2q.dtsi
+++ b/arch/arm/boot/dts/berlin2q.dtsi
@@ -119,7 +119,7 @@
 			compatible = "mrvl,pxav3-mmc";
 			reg = <0xab1000 0x200>;
 			interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&chip_clk CLKID_NFC_ECC>, <&chip_clk CLKID_NFC>;
+			clocks = <&chip_clk CLKID_NFC_ECC>, <&chip_clk CLKID_SDIO>;
 			clock-names = "io", "core";
 			status = "disabled";
 		};
-- 
2.6.1

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[PATCH v2 2/4] ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1

[Jisheng Zhang]

Add the optional 2nd clock for BG2Q's sdhci0 and sdhci1. This would let the
clock be disabled during runtime pm, so saves power a bit.

Signed-off-by: Jisheng Zhang <jszhang-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
---
 arch/arm/boot/dts/berlin2q.dtsi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
index 2cb07fa..71b5d5e 100644
--- a/arch/arm/boot/dts/berlin2q.dtsi
+++ b/arch/arm/boot/dts/berlin2q.dtsi
@@ -102,7 +102,8 @@
 		sdhci0: sdhci@ab0000 {
 			compatible = "mrvl,pxav3-mmc";
 			reg = <0xab0000 0x200>;
-			clocks = <&chip_clk CLKID_SDIO1XIN>;
+			clocks = <&chip_clk CLKID_SDIO1XIN>, <&chip_clk CLKID_SDIO>;
+			clock-names = "io", "core";
 			interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
 			status = "disabled";
 		};
@@ -110,7 +111,8 @@
 		sdhci1: sdhci@ab0800 {
 			compatible = "mrvl,pxav3-mmc";
 			reg = <0xab0800 0x200>;
-			clocks = <&chip_clk CLKID_SDIO1XIN>;
+			clocks = <&chip_clk CLKID_SDIO1XIN>, <&chip_clk CLKID_SDIO>;
+			clock-names = "io", "core";
 			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
 			status = "disabled";
 		};
-- 
2.6.1

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[PATCH v2 3/4] clk: berlin: bg2q: remove CLK_IGNORE_UNUSED flag for sdio clk

[Jisheng Zhang]

Since we have added the necessary two clks' properties in dts, we can
remove the "sdio" clk's CLK_IGNORE_UNUSED flag now.

Signed-off-by: Jisheng Zhang <jszhang-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
---
 drivers/clk/berlin/bg2q.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/berlin/bg2q.c b/drivers/clk/berlin/bg2q.c
index 221f40c..243f421 100644
--- a/drivers/clk/berlin/bg2q.c
+++ b/drivers/clk/berlin/bg2q.c
@@ -283,7 +283,7 @@ static const struct berlin2_gate_data bg2q_gates[] __initconst = {
 	{ "usb2",	"perif",	13 },
 	{ "usb3",	"perif",	14 },
 	{ "pbridge",	"perif",	15, CLK_IGNORE_UNUSED },
-	{ "sdio",	"perif",	16, CLK_IGNORE_UNUSED },
+	{ "sdio",	"perif",	16 },
 	{ "nfc",	"perif",	18 },
 	{ "pcie",	"perif",	22 },
 };
-- 
2.6.1

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Re: [PATCH v2 3/4] clk: berlin: bg2q: remove CLK_IGNORE_UNUSED flag for sdio clk

[Michael Turquette]

Quoting Jisheng Zhang (2015-10-20 04:16:46)
> Since we have added the necessary two clks' properties in dts, we can
> remove the "sdio" clk's CLK_IGNORE_UNUSED flag now.
> 
> Signed-off-by: Jisheng Zhang <jszhang-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>

Applied to clk-next.

Regards,
Mike

> ---
>  drivers/clk/berlin/bg2q.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/berlin/bg2q.c b/drivers/clk/berlin/bg2q.c
> index 221f40c..243f421 100644
> --- a/drivers/clk/berlin/bg2q.c
> +++ b/drivers/clk/berlin/bg2q.c
> @@ -283,7 +283,7 @@ static const struct berlin2_gate_data bg2q_gates[] __initconst = {
>         { "usb2",       "perif",        13 },
>         { "usb3",       "perif",        14 },
>         { "pbridge",    "perif",        15, CLK_IGNORE_UNUSED },
> -       { "sdio",       "perif",        16, CLK_IGNORE_UNUSED },
> +       { "sdio",       "perif",        16 },
>         { "nfc",        "perif",        18 },
>         { "pcie",       "perif",        22 },
>  };
> -- 
> 2.6.1
> 
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Re: [PATCH v2 3/4] clk: berlin: bg2q: remove CLK_IGNORE_UNUSED flag for sdio clk

[Michael Turquette]

Quoting Michael Turquette (2015-10-21 02:30:39)
> Quoting Jisheng Zhang (2015-10-20 04:16:46)
> > Since we have added the necessary two clks' properties in dts, we can
> > remove the "sdio" clk's CLK_IGNORE_UNUSED flag now.
> > 
> > Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
> 
> Applied to clk-next.

So the sdhci change was dropped from v2. Do you want me to Ack these
instead so you can send them all together?

Regards,
Mike

> 
> Regards,
> Mike
> 
> > ---
> >  drivers/clk/berlin/bg2q.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/clk/berlin/bg2q.c b/drivers/clk/berlin/bg2q.c
> > index 221f40c..243f421 100644
> > --- a/drivers/clk/berlin/bg2q.c
> > +++ b/drivers/clk/berlin/bg2q.c
> > @@ -283,7 +283,7 @@ static const struct berlin2_gate_data bg2q_gates[] __initconst = {
> >         { "usb2",       "perif",        13 },
> >         { "usb3",       "perif",        14 },
> >         { "pbridge",    "perif",        15, CLK_IGNORE_UNUSED },
> > -       { "sdio",       "perif",        16, CLK_IGNORE_UNUSED },
> > +       { "sdio",       "perif",        16 },
> >         { "nfc",        "perif",        18 },
> >         { "pcie",       "perif",        22 },
> >  };
> > -- 
> > 2.6.1
> > 

Re: [PATCH v2 3/4] clk: berlin: bg2q: remove CLK_IGNORE_UNUSED flag for sdio clk

[Jisheng Zhang]

Dear Michael,

On Wed, 21 Oct 2015 02:54:54 -0700
Michael Turquette <mturquette@baylibre.com> wrote:

> Quoting Michael Turquette (2015-10-21 02:30:39)
> > Quoting Jisheng Zhang (2015-10-20 04:16:46)  
> > > Since we have added the necessary two clks' properties in dts, we can
> > > remove the "sdio" clk's CLK_IGNORE_UNUSED flag now.
> > > 
> > > Signed-off-by: Jisheng Zhang <jszhang@marvell.com>  
> > 
> > Applied to clk-next.  
> 
> So the sdhci change was dropped from v2. Do you want me to Ack these
> instead so you can send them all together?

I'll send another patch to for the sdhci change. it doesn't matter even the
sdhci change delay a merge window because no functionality changes in the
sdhci commit.

It's better we firstly take these clk clean ups because it saves power a bit
and clean up the CLK_IGNORE_UNUSED flag.

Hi Sebastian,

What do you think?

Thanks,
Jisheng

[PATCH v2 4/4] clk: berlin: bg2: remove CLK_IGNORE_UNUSED flag for sdio clk

[Jisheng Zhang]

The clocks' properties have been already properly set, so there's no
need to set this flag for sdio0 and sdio1 clk any more.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
---
 drivers/clk/berlin/bg2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/berlin/bg2.c b/drivers/clk/berlin/bg2.c
index 73153fc..23e0e3b 100644
--- a/drivers/clk/berlin/bg2.c
+++ b/drivers/clk/berlin/bg2.c
@@ -490,8 +490,8 @@ static const struct berlin2_gate_data bg2_gates[] __initconst = {
 	{ "usb0",	"perif",	11 },
 	{ "usb1",	"perif",	12 },
 	{ "pbridge",	"perif",	13, CLK_IGNORE_UNUSED },
-	{ "sdio0",	"perif",	14, CLK_IGNORE_UNUSED },
-	{ "sdio1",	"perif",	15, CLK_IGNORE_UNUSED },
+	{ "sdio0",	"perif",	14 },
+	{ "sdio1",	"perif",	15 },
 	{ "nfc",	"perif",	17 },
 	{ "smemc",	"perif",	19 },
 	{ "audiohd",	"audiohd_pll",	26 },
-- 
2.6.1

Re: [PATCH v2 4/4] clk: berlin: bg2: remove CLK_IGNORE_UNUSED flag for sdio clk

[Michael Turquette]

Quoting Jisheng Zhang (2015-10-20 04:16:47)
> The clocks' properties have been already properly set, so there's no
> need to set this flag for sdio0 and sdio1 clk any more.
> 
> Signed-off-by: Jisheng Zhang <jszhang@marvell.com>

Applied to clk-next.

Regards,
Mike

> ---
>  drivers/clk/berlin/bg2.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clk/berlin/bg2.c b/drivers/clk/berlin/bg2.c
> index 73153fc..23e0e3b 100644
> --- a/drivers/clk/berlin/bg2.c
> +++ b/drivers/clk/berlin/bg2.c
> @@ -490,8 +490,8 @@ static const struct berlin2_gate_data bg2_gates[] __initconst = {
>         { "usb0",       "perif",        11 },
>         { "usb1",       "perif",        12 },
>         { "pbridge",    "perif",        13, CLK_IGNORE_UNUSED },
> -       { "sdio0",      "perif",        14, CLK_IGNORE_UNUSED },
> -       { "sdio1",      "perif",        15, CLK_IGNORE_UNUSED },
> +       { "sdio0",      "perif",        14 },
> +       { "sdio1",      "perif",        15 },
>         { "nfc",        "perif",        17 },
>         { "smemc",      "perif",        19 },
>         { "audiohd",    "audiohd_pll",  26 },
> -- 
> 2.6.1
>