linux-kernel - Re: [PATCH v3 4/5] clk: s2mps15: Add support for S2MPS15 clocks

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Date:	Wed, 28 Oct 2015 10:26:22 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Alim Akhtar <alim.akhtar@...sung.com>, lee.jones@...aro.org,
	broonie@...nel.org
Cc:	mturquette@...libre.com, linux-samsung-soc@...r.kernel.org,
	linux-clk@...r.kernel.org, rtc-linux@...glegroups.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/5] clk: s2mps15: Add support for S2MPS15 clocks

On 26.10.2015 21:51, Alim Akhtar wrote:
> S2MPS15 PMIC has three 32k buffered clocks outputs. This patch
> adds supports for the same to the s2mps11 clock driver.
> 
> Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>
> ---
>  drivers/clk/Kconfig       |    5 +++--
>  drivers/clk/clk-s2mps11.c |   24 ++++++++++++++++++++++++
>  2 files changed, 27 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
> index a1fa61159179..037a314b5d76 100644
> --- a/drivers/clk/Kconfig
> +++ b/drivers/clk/Kconfig
> @@ -120,9 +120,10 @@ config COMMON_CLK_S2MPS11
>  	tristate "Clock driver for S2MPS1X/S5M8767 MFD"
>  	depends on MFD_SEC_CORE
>  	---help---
> -	  This driver supports S2MPS11/S2MPS14/S5M8767 crystal oscillator
> +	  This driver supports S2MPS1X/S5M8767 crystal oscillator
>  	  clock. These multi-function devices have two (S2MPS14) or three
> -	  (S2MPS11, S5M8767) fixed-rate oscillators, clocked at 32KHz each.
> +	  (S2MPS11/S2MPS13/S2MPS15/S5M8767) fixed-rate oscillators,
> +	  clocked at 32KHz each.
>  
>  config CLK_TWL6040
>  	tristate "External McPDM functional clock from twl6040"
> diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
> index d266299dfdb1..455500dca653 100644
> --- a/drivers/clk/clk-s2mps11.c
> +++ b/drivers/clk/clk-s2mps11.c
> @@ -25,6 +25,7 @@
>  #include <linux/mfd/samsung/s2mps11.h>
>  #include <linux/mfd/samsung/s2mps13.h>
>  #include <linux/mfd/samsung/s2mps14.h>
> +#include <linux/mfd/samsung/s2mps15.h>
>  #include <linux/mfd/samsung/s5m8767.h>
>  #include <linux/mfd/samsung/core.h>
>  
> @@ -148,6 +149,24 @@ static struct clk_init_data s2mps14_clks_init[S2MPS11_CLKS_NUM] = {
>  	},
>  };
>  
> +static struct clk_init_data s2mps15_clks_init[S2MPS11_CLKS_NUM] = {
> +	[S2MPS11_CLK_AP] = {
> +		.name = "s2mps15_ap",
> +		.ops = &s2mps11_clk_ops,
> +		.flags = CLK_IS_ROOT,
> +	},
> +	[S2MPS11_CLK_CP] = {
> +		.name = "s2mps15_cp",
> +		.ops = &s2mps11_clk_ops,
> +		.flags = CLK_IS_ROOT,
> +	},
> +	[S2MPS11_CLK_BT] = {
> +		.name = "s2mps15_bt",
> +		.ops = &s2mps11_clk_ops,
> +		.flags = CLK_IS_ROOT,
> +	},
> +};
> +
>  static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev,
>  		struct clk_init_data *clks_init)
>  {
> @@ -207,6 +226,10 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
>  		s2mps11_reg = S2MPS14_REG_RTCCTRL;
>  		clks_init = s2mps14_clks_init;
>  		break;
> +	case S2MPS15X:
> +		s2mps11_reg = S2MPS15_REG_RTC_BUF;
> +		clks_init = s2mps15_clks_init;

Another question (after looking at RTC driver):
Is this the same register address as S2MPS14?

Best regards,
Krzysztof

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