Re: [PATCH 03/23] clk: samsung: fsd: Add initial clock support

[Krzysztof Kozlowski]

On 13/01/2022 13:11, Alim Akhtar wrote:
> Add initial clock support for FSD (Full Self-Driving) SoC
> which is required to bring-up platforms based on this SoC.
> 
> Cc: linux-fsd@xxxxxxxxx
> Signed-off-by: Jayati Sahu <jayati.sahu@xxxxxxxxxxx>
> Signed-off-by: Ajay Kumar <ajaykumar.rs@xxxxxxxxxxx>
> Signed-off-by: Pankaj Dubey <pankaj.dubey@xxxxxxxxxxx>
> Signed-off-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>
> ---
>  drivers/clk/samsung/Makefile  |   1 +
>  drivers/clk/samsung/clk-fsd.c | 308 ++++++++++++++++++++++++++++++++++
>  drivers/clk/samsung/clk-pll.c |   1 +
>  drivers/clk/samsung/clk-pll.h |   1 +
>  4 files changed, 311 insertions(+)
>  create mode 100644 drivers/clk/samsung/clk-fsd.c
> 
> diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
> index c46cf11e4d0b..d66b2ede004c 100644
> --- a/drivers/clk/samsung/Makefile
> +++ b/drivers/clk/samsung/Makefile
> @@ -18,6 +18,7 @@ obj-$(CONFIG_EXYNOS_AUDSS_CLK_CON) += clk-exynos-audss.o
>  obj-$(CONFIG_EXYNOS_CLKOUT)	+= clk-exynos-clkout.o
>  obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos7.o
>  obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos850.o
> +obj-$(CONFIG_ARCH_TESLA_FSD)         += clk-fsd.o

It should be rather it's own CONFIG_TESLA_FSD_CLK option, just like
other Exynos designs. This keeps unified approach with existing Samsung
clock Kconfig.

>  obj-$(CONFIG_S3C2410_COMMON_CLK)+= clk-s3c2410.o
>  obj-$(CONFIG_S3C2410_COMMON_DCLK)+= clk-s3c2410-dclk.o
>  obj-$(CONFIG_S3C2412_COMMON_CLK)+= clk-s3c2412.o
> diff --git a/drivers/clk/samsung/clk-fsd.c b/drivers/clk/samsung/clk-fsd.c
> new file mode 100644
> index 000000000000..e47523106d9e
> --- /dev/null
> +++ b/drivers/clk/samsung/clk-fsd.c
> @@ -0,0 +1,308 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Common Clock Framework support for FSD SoC.
> + *
> + * Copyright (c) 2017-2022 Samsung Electronics Co., Ltd.
> + *             https://www.samsung.com
> + * Copyright (c) 2017-2022 Tesla, Inc.
> + *             https://www.tesla.com
> + *

Drop the line break with empty * comment.
> + */
> +
> +#include <linux/clk-provider.h>
> +#include <linux/of.h>
> +
> +#include "clk.h"
> +#include <dt-bindings/clock/fsd-clk.h>

dt-bindings headers before local clk.h.

> +
> +/* Register Offset definitions for CMU_CMU (0x11c10000) */



Best regards,
Krzysztof