Re: [PATCH v2 1/2 RESEND] soc: mediatek: add header for SiP service interface

[Alim Akhtar]

Hi

On Mon, Dec 16, 2019 at 9:19 AM Stanley Chu <stanley.chu@xxxxxxxxxxxx> wrote:
>
> Add a header for the SiP service interface in order to access
> the UFSHCI controller for secure command handling in MediaTek Chipsets.
>
> Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
> ---
>  include/linux/soc/mediatek/mtk_sip_svc.h | 29 ++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
>  create mode 100644 include/linux/soc/mediatek/mtk_sip_svc.h
>
> diff --git a/include/linux/soc/mediatek/mtk_sip_svc.h b/include/linux/soc/mediatek/mtk_sip_svc.h
> new file mode 100644
> index 000000000000..97311959d7d7
> --- /dev/null
> +++ b/include/linux/soc/mediatek/mtk_sip_svc.h
> @@ -0,0 +1,29 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (C) 2019 MediaTek Inc.
> + */
> +#ifndef __MTK_SIP_SVC_H
> +#define __MTK_SIP_SVC_H
> +
> +/* Error Code */
> +#define SIP_SVC_E_SUCCESS               0
> +#define SIP_SVC_E_NOT_SUPPORTED         -1
> +#define SIP_SVC_E_INVALID_PARAMS        -2
> +#define SIP_SVC_E_INVALID_RANGE         -3
> +#define SIP_SVC_E_PERMISSION_DENIED     -4
> +
> +#ifdef CONFIG_ARM64
> +#define MTK_SIP_SMC_CONVENTION          ARM_SMCCC_SMC_64
> +#else
> +#define MTK_SIP_SMC_CONVENTION          ARM_SMCCC_SMC_32
> +#endif
> +
> +#define MTK_SIP_SMC_CMD(fn_id) \
> +       ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, MTK_SIP_SMC_CONVENTION, \
> +                          ARM_SMCCC_OWNER_SIP, fn_id)
> +
> +/* UFS related SMC call */
> +#define MTK_SIP_UFS_CONTROL \
> +       MTK_SIP_SMC_CMD(0x276)
> +
How about moving UFS specific stuff to MTK UFS driver and include this
header in driver file?
Rest looks fine.
> +#endif
> --
> 2.18.0



-- 
Regards,
Alim