linux-kernel - Re: [PATCH] phy: exynos5-usbdrd: Add to support for Exynos5433 SoC

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Message-id: <5506CAB4.7000204@samsung.com>
Date:	Mon, 16 Mar 2015 21:21:08 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Jaewon Kim <jaewon02.kim@...sung.com>
Cc:	Kamil Debski <k.debski@...sung.com>, Kukjin Kim <kgene@...nel.org>,
	Kishon Vijay Abraham I <kishon@...com>,
	Vivek Gautam <gautam.vivek@...sung.com>,
	Felipe Balbi <balbi@...com>, Inki Dae <inki.dae@...sung.com>,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-usb@...r.kernel.org
Subject: Re: [PATCH] phy: exynos5-usbdrd: Add to support for Exynos5433 SoC

On 03/12/2015 07:11 PM, Jaewon Kim wrote:
> This patch adds driver data to support for Exynos5433 SoC.
> The Exynos5433 has one USB3.0 Host and USB3.0 DRD(Dual Role Device).
> Exynos5433 is simplar to Eyxnos7 but Exynos5433 have
> one more USB3.0 Host controller.
> 
> Signed-off-by: Jaewon Kim <jaewon02.kim@...sung.com>
> ---
>  .../devicetree/bindings/phy/samsung-phy.txt        |    3 ++-
>  drivers/phy/phy-exynos5-usbdrd.c                   |   10 ++++++++++
>  include/linux/mfd/syscon/exynos5-pmu.h             |    3 +++
>  3 files changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
> index 91e38cf..60c6f2a 100644
> --- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
> +++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
> @@ -128,6 +128,7 @@ Required properties:
>  - compatible : Should be set to one of the following supported values:
>  	- "samsung,exynos5250-usbdrd-phy" - for exynos5250 SoC,
>  	- "samsung,exynos5420-usbdrd-phy" - for exynos5420 SoC.
> +	- "samsung,exynos5433-usbdrd-phy" - for exynos5433 SoC.
>  	- "samsung,exynos7-usbdrd-phy" - for exynos7 SoC.
>  - reg : Register offset and length of USB DRD PHY register set;
>  - clocks: Clock IDs array as required by the controller
> @@ -139,7 +140,7 @@ Required properties:
>  	       PHY operations, associated by phy name. It is used to
>  	       determine bit values for clock settings register.
>  	       For Exynos5420 this is given as 'sclk_usbphy30' in CMU.
> -	- optional clocks: Exynos7 SoC has now following additional
> +	- optional clocks: Exynos5433 & Exynos7 SoC has now following additional
>  			   gate clocks available:
>  			   - phy_pipe: for PIPE3 phy
>  			   - phy_utmi: for UTMI+ phy
> diff --git a/drivers/phy/phy-exynos5-usbdrd.c b/drivers/phy/phy-exynos5-usbdrd.c
> index 0437401..597e7dd 100644
> --- a/drivers/phy/phy-exynos5-usbdrd.c
> +++ b/drivers/phy/phy-exynos5-usbdrd.c
> @@ -624,6 +624,13 @@ static const struct exynos5_usbdrd_phy_drvdata exynos5250_usbdrd_phy = {
>  	.has_common_clk_gate	= true,
>  };
>  
> +static const struct exynos5_usbdrd_phy_drvdata exynos5433_usbdrd_phy = {
> +	.phy_cfg		= phy_cfg_exynos5,
> +	.pmu_offset_usbdrd0_phy	= EXYNOS5_USBDRD_PHY_CONTROL,
> +	.pmu_offset_usbdrd1_phy	= EXYNOS5433_USBHOST30_PHY_CONTROL,
> +	.has_common_clk_gate	= false,
> +};
> +
>  static const struct exynos5_usbdrd_phy_drvdata exynos7_usbdrd_phy = {
>  	.phy_cfg		= phy_cfg_exynos5,
>  	.pmu_offset_usbdrd0_phy	= EXYNOS5_USBDRD_PHY_CONTROL,
> @@ -638,6 +645,9 @@ static const struct of_device_id exynos5_usbdrd_phy_of_match[] = {
>  		.compatible = "samsung,exynos5420-usbdrd-phy",
>  		.data = &exynos5420_usbdrd_phy
>  	}, {
> +		.compatible = "samsung,exynos5433-usbdrd-phy",
> +		.data = &exynos5433_usbdrd_phy
> +	}, {
>  		.compatible = "samsung,exynos7-usbdrd-phy",
>  		.data = &exynos7_usbdrd_phy
>  	},
> diff --git a/include/linux/mfd/syscon/exynos5-pmu.h b/include/linux/mfd/syscon/exynos5-pmu.h
> index 00ef24b..9352adc 100644
> --- a/include/linux/mfd/syscon/exynos5-pmu.h
> +++ b/include/linux/mfd/syscon/exynos5-pmu.h
> @@ -36,6 +36,9 @@
>  #define EXYNOS5420_MTCADC_PHY_CONTROL		(0x724)
>  #define EXYNOS5420_DPTX_PHY_CONTROL		(0x728)
>  
> +/* Exynos5433 specific register definitions */
> +#define EXYNOS5433_USBHOST30_PHY_CONTROL	(0x728)
> +
>  #define EXYNOS5_PHY_ENABLE			BIT(0)
>  
>  #define EXYNOS5_MIPI_PHY_S_RESETN		BIT(1)
> 

I tested this patch for USB on Exynos5433-based board.

Tested-by: Chanwoo Choi <cw00.choi@...sung.com>

Thanks,
Chanwoo Choi

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