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scsi: ufs: ufs-mediatek: Support flexible parameters for SMC calls 

Provide flexible number of parameters for UFS SMC calls to be used in a
subsequent commit.

Link: https://lore.kernel.org/r/20220616053725.5681-8-stanley.chu@mediatek.com
Signed-off-by: Alice Chao <alice.chao@mediatek.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Stanley Chu 2022-06-16 13:37:21 +08:00 committed by Martin K. Petersen
parent 0836cc252a
commit bc602ae977
2 changed files with 39 additions and 16 deletions
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16
drivers/ufs/host/ufs-mediatek.c
View File

@ -30,22 +30,6 @@
#define CREATE_TRACE_POINTS #define CREATE_TRACE_POINTS
#include "ufs-mediatek-trace.h" #include "ufs-mediatek-trace.h"
#define ufs_mtk_smc(cmd, val, res) \
arm_smccc_smc(MTK_SIP_UFS_CONTROL, \
cmd, val, 0, 0, 0, 0, 0, &(res))
#define ufs_mtk_va09_pwr_ctrl(res, on) \
ufs_mtk_smc(UFS_MTK_SIP_VA09_PWR_CTRL, on, res)
#define ufs_mtk_crypto_ctrl(res, enable) \
ufs_mtk_smc(UFS_MTK_SIP_CRYPTO_CTRL, enable, res)
#define ufs_mtk_ref_clk_notify(on, res) \
ufs_mtk_smc(UFS_MTK_SIP_REF_CLK_NOTIFICATION, on, res)
#define ufs_mtk_device_reset_ctrl(high, res) \
ufs_mtk_smc(UFS_MTK_SIP_DEVICE_RESET, high, res)
static const struct ufs_dev_quirk ufs_mtk_dev_fixups[] = { static const struct ufs_dev_quirk ufs_mtk_dev_fixups[] = {
{ .wmanufacturerid = UFS_VENDOR_MICRON, { .wmanufacturerid = UFS_VENDOR_MICRON,
.model = UFS_ANY_MODEL, .model = UFS_ANY_MODEL,

39
drivers/ufs/host/ufs-mediatek.h
View File

@ -143,4 +143,43 @@ struct ufs_mtk_host {
u32 ip_ver; u32 ip_ver;
}; };
/*
* SMC call wrapper function
*/
struct ufs_mtk_smc_arg {
unsigned long cmd;
struct arm_smccc_res *res;
unsigned long v1;
unsigned long v2;
unsigned long v3;
unsigned long v4;
unsigned long v5;
unsigned long v6;
unsigned long v7;
};
static void _ufs_mtk_smc(struct ufs_mtk_smc_arg s)
{
arm_smccc_smc(MTK_SIP_UFS_CONTROL,
s.cmd, s.v1, s.v2, s.v3, s.v4, s.v5, s.v6, s.res);
}
#define ufs_mtk_smc(...) \
_ufs_mtk_smc((struct ufs_mtk_smc_arg) {__VA_ARGS__})
/*
* SMC call interface
*/
#define ufs_mtk_va09_pwr_ctrl(res, on) \
ufs_mtk_smc(UFS_MTK_SIP_VA09_PWR_CTRL, &(res), on)
#define ufs_mtk_crypto_ctrl(res, enable) \
ufs_mtk_smc(UFS_MTK_SIP_CRYPTO_CTRL, &(res), enable)
#define ufs_mtk_ref_clk_notify(on, res) \
ufs_mtk_smc(UFS_MTK_SIP_REF_CLK_NOTIFICATION, &(res), on)
#define ufs_mtk_device_reset_ctrl(high, res) \
ufs_mtk_smc(UFS_MTK_SIP_DEVICE_RESET, &(res), high)
#endif /* !_UFS_MEDIATEK_H */ #endif /* !_UFS_MEDIATEK_H */