* [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model
@ 2016-04-20 10:20 Yangbo Lu
2016-04-20 10:20 ` [PATCH 2/2] mmc: sdhci-pltfm: get clock through the common clk APIs Yangbo Lu
2016-04-21 23:08 ` [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model Scott Wood
0 siblings, 2 replies; 6+ messages in thread
From: Yangbo Lu @ 2016-04-20 10:20 UTC (permalink / raw)
To: linux-mmc, linuxppc-dev, devicetree
Cc: ulf.hansson, scott.wood, Rob Herring, Yangbo Lu
Provide clocks property instead of clock-frequency for QorIQ eSDHC
dts node to adapt to the new clocking model, so that the driver
could get clock value by the common clk API and the u-boot could
remove the clock fixup.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi
index 20835ae..ddbe562 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi
@@ -36,5 +36,5 @@ sdhc: sdhc@114000 {
compatible = "fsl,esdhc";
reg = <0x114000 0x1000>;
interrupts = <48 2 0 0>;
- clock-frequency = <0>;
+ clocks = <&clockgen 4 1>;
};
--
2.1.0.27.g96db324
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 2/2] mmc: sdhci-pltfm: get clock through the common clk APIs
2016-04-20 10:20 [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model Yangbo Lu
@ 2016-04-20 10:20 ` Yangbo Lu
2016-04-21 23:08 ` [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model Scott Wood
1 sibling, 0 replies; 6+ messages in thread
From: Yangbo Lu @ 2016-04-20 10:20 UTC (permalink / raw)
To: linux-mmc, linuxppc-dev, devicetree
Cc: ulf.hansson, scott.wood, Rob Herring, Yangbo Lu
Get the sdhc clock through the common clk APIs. If the APIs fail, try
to get the clock through 'clock-frequency' property. We could remove
the clock fixup in u-boot by adding the common clk APIs support.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
drivers/mmc/host/sdhci-pltfm.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 072bb27..383fa49 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -31,6 +31,7 @@
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/clk.h>
#ifdef CONFIG_PPC
#include <asm/machdep.h>
#endif
@@ -71,6 +72,7 @@ void sdhci_get_of_property(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct clk *sdhci_clk;
u32 bus_width;
if (of_get_property(np, "sdhci,auto-cmd12", NULL))
@@ -99,7 +101,11 @@ void sdhci_get_of_property(struct platform_device *pdev)
of_device_is_compatible(np, "fsl,mpc8536-esdhc"))
host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
- of_property_read_u32(np, "clock-frequency", &pltfm_host->clock);
+ sdhci_clk = of_clk_get(np, 0);
+ if (!IS_ERR(sdhci_clk))
+ pltfm_host->clock = clk_get_rate(sdhci_clk);
+ else
+ of_property_read_u32(np, "clock-frequency", &pltfm_host->clock);
if (of_find_property(np, "keep-power-in-suspend", NULL))
host->mmc->pm_caps |= MMC_PM_KEEP_POWER;
--
2.1.0.27.g96db324
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model
2016-04-20 10:20 [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model Yangbo Lu
2016-04-20 10:20 ` [PATCH 2/2] mmc: sdhci-pltfm: get clock through the common clk APIs Yangbo Lu
@ 2016-04-21 23:08 ` Scott Wood
2016-04-26 6:19 ` Yangbo Lu
2016-04-26 6:29 ` Yangbo Lu
1 sibling, 2 replies; 6+ messages in thread
From: Scott Wood @ 2016-04-21 23:08 UTC (permalink / raw)
To: Yangbo Lu, linux-mmc, linuxppc-dev, devicetree
Cc: ulf.hansson, Rob Herring, scott.wood
On Wed, 2016-04-20 at 18:20 +0800, Yangbo Lu wrote:
> Provide clocks property instead of clock-frequency for QorIQ eSDHC
> dts node to adapt to the new clocking model, so that the driver
> could get clock value by the common clk API and the u-boot could
> remove the clock fixup.
>
> Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
> ---
> arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi
> b/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi
> index 20835ae..ddbe562 100644
> --- a/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi
> +++ b/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi
> @@ -36,5 +36,5 @@ sdhc: sdhc@114000 {
> compatible = "fsl,esdhc";
> reg = <0x114000 0x1000>;
> interrupts = <48 2 0 0>;
> - clock-frequency = <0>;
> + clocks = <&clockgen 4 1>;
> };
Binding update?
-Scott
^ permalink raw reply [flat|nested] 6+ messages in thread* RE: [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model
2016-04-21 23:08 ` [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model Scott Wood
@ 2016-04-26 6:19 ` Yangbo Lu
2016-04-26 6:29 ` Yangbo Lu
1 sibling, 0 replies; 6+ messages in thread
From: Yangbo Lu @ 2016-04-26 6:19 UTC (permalink / raw)
To: Scott Wood, linux-mmc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org
Cc: ulf.hansson@linaro.org, Rob Herring, Scott Wood
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CiAgICAgICAgcHJvdmlkZWQuDQoNCg==
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model
2016-04-21 23:08 ` [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model Scott Wood
2016-04-26 6:19 ` Yangbo Lu
@ 2016-04-26 6:29 ` Yangbo Lu
2016-04-26 6:31 ` Scott Wood
1 sibling, 1 reply; 6+ messages in thread
From: Yangbo Lu @ 2016-04-26 6:29 UTC (permalink / raw)
To: Yangbo Lu, Scott Wood, linux-mmc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org
Cc: ulf.hansson@linaro.org, Rob Herring, Scott Wood
DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogWWFuZ2JvIEx1DQo+IFNl
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model
2016-04-26 6:29 ` Yangbo Lu
@ 2016-04-26 6:31 ` Scott Wood
0 siblings, 0 replies; 6+ messages in thread
From: Scott Wood @ 2016-04-26 6:31 UTC (permalink / raw)
To: Yangbo Lu, Scott Wood, linux-mmc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org
Cc: ulf.hansson@linaro.org, Rob Herring
On 04/26/2016 01:29 AM, Yangbo Lu wrote:=0A=
> =0A=
> =0A=
>> -----Original Message-----=0A=
>> From: Yangbo Lu=0A=
>> Sent: Tuesday, April 26, 2016 2:19 PM=0A=
>> To: 'Scott Wood'; linux-mmc@vger.kernel.org; linuxppc-=0A=
>> dev@lists.ozlabs.org; devicetree@vger.kernel.org=0A=
>> Cc: ulf.hansson@linaro.org; Rob Herring; Scott Wood=0A=
>> Subject: RE: [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new=0A=
>> clocking model=0A=
>>=0A=
>>> -----Original Message-----=0A=
>>> From: Scott Wood [mailto:oss@buserror.net]=0A=
>>> Sent: Friday, April 22, 2016 7:08 AM=0A=
>>> To: Yangbo Lu; linux-mmc@vger.kernel.org;=0A=
>>> linuxppc-dev@lists.ozlabs.org; devicetree@vger.kernel.org=0A=
>>> Cc: ulf.hansson@linaro.org; Rob Herring; Scott Wood=0A=
>>> Subject: Re: [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new=0A=
>>> clocking model=0A=
>>>=0A=
>>> On Wed, 2016-04-20 at 18:20 +0800, Yangbo Lu wrote:=0A=
>>>> Provide clocks property instead of clock-frequency for QorIQ eSDHC=0A=
>>>> dts node to adapt to the new clocking model, so that the driver=0A=
>>>> could get clock value by the common clk API and the u-boot could=0A=
>>>> remove the clock fixup.=0A=
>>>>=0A=
>>>> Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>=0A=
>>>> ---=0A=
>>>> arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi | 2 +-=0A=
>>>> 1 file changed, 1 insertion(+), 1 deletion(-)=0A=
>>>>=0A=
>>>> diff --git a/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi=0A=
>>>> b/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi=0A=
>>>> index 20835ae..ddbe562 100644=0A=
>>>> --- a/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi=0A=
>>>> +++ b/arch/powerpc/boot/dts/fsl/qoriq-esdhc-0.dtsi=0A=
>>>> @@ -36,5 +36,5 @@ sdhc: sdhc@114000 {=0A=
>>>> compatible =3D "fsl,esdhc";=0A=
>>>> reg =3D <0x114000 0x1000>;=0A=
>>>> interrupts =3D <48 2 0 0>;=0A=
>>>> - clock-frequency =3D <0>;=0A=
>>>> + clocks =3D <&clockgen 4 1>;=0A=
>>>> };=0A=
>>>=0A=
>>> Binding update?=0A=
>>>=0A=
>>> -Scott=0A=
>>=0A=
>> [Lu Yangbo-B47093] Sorry, did you mean the doc update? ...=0A=
>> It has already had a description in=0A=
>> Documentation/devicetree/bindings/clock/qoriq-clock.txt=0A=
>>=0A=
>> - clock-frequency: Input system clock frequency (SYSCLK)=0A=
>> - clocks: If clock-frequency is not specified, sysclk may be provided=0A=
>> as an input clock. Either clock-frequency or clocks must be=0A=
>> provided.=0A=
> =0A=
> [Lu Yangbo-B47093] Or update mmc doc?=0A=
=0A=
Yes, mmc. This patch has nothing to do with the clockgen node's input=0A=
clock...=0A=
=0A=
-Scott=0A=
=0A=
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2016-04-26 7:04 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-04-20 10:20 [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model Yangbo Lu
2016-04-20 10:20 ` [PATCH 2/2] mmc: sdhci-pltfm: get clock through the common clk APIs Yangbo Lu
2016-04-21 23:08 ` [PATCH 1/2] powerpc/85xx: adapt QorIQ eSDHC to the new clocking model Scott Wood
2016-04-26 6:19 ` Yangbo Lu
2016-04-26 6:29 ` Yangbo Lu
2016-04-26 6:31 ` Scott Wood
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as well as URLs for NNTP newsgroup(s).