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scsi: ufs: host: mediatek: Add clock scaling query function

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Introduce a clock scaling readiness query function to streamline the
process of checking clock scaling parameters.  This function simplifies
the code by encapsulating the logic for determining if clock scaling is
ready.

Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20250722030841.1998783-8-peter.wang@mediatek.com
Reviewed-by: Chun-Hung Wu <chun-hung.wu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Peter Wang 2025-07-22 11:07:22 +08:00 committed by Martin K. Petersen
parent 7996746394
commit ff40f31216
1 changed files with 11 additions and 3 deletions
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14
drivers/ufs/host/ufs-mediatek.c
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@ -141,6 +141,16 @@ static bool ufs_mtk_is_allow_vccqx_lpm(struct ufs_hba *hba)
return host->caps & UFS_MTK_CAP_ALLOW_VCCQX_LPM;
}
static bool ufs_mtk_is_clk_scale_ready(struct ufs_hba *hba)
{
struct ufs_mtk_host *host = ufshcd_get_variant(hba);
struct ufs_mtk_clk *mclk = &host->mclk;
return mclk->ufs_sel_clki &&
mclk->ufs_sel_max_clki &&
mclk->ufs_sel_min_clki;
}
static void ufs_mtk_cfg_unipro_cg(struct ufs_hba *hba, bool enable)
{
u32 tmp;
@ -922,7 +932,6 @@ static void ufs_mtk_init_clocks(struct ufs_hba *hba)
{
struct ufs_mtk_host *host = ufshcd_get_variant(hba);
struct list_head *head = &hba->clk_list_head;
struct ufs_mtk_clk *mclk = &host->mclk;
struct ufs_clk_info *clki, *clki_tmp;
/*
@ -944,8 +953,7 @@ static void ufs_mtk_init_clocks(struct ufs_hba *hba)
}
}
if (!mclk->ufs_sel_clki || !mclk->ufs_sel_max_clki ||
!mclk->ufs_sel_min_clki) {
if (!ufs_mtk_is_clk_scale_ready(hba)) {
hba->caps &= ~UFSHCD_CAP_CLK_SCALING;
dev_info(hba->dev,
"%s: Clk-scaling not ready. Feature disabled.",