Commit ff40f312 authored by Peter Wang's avatar Peter Wang Committed by Martin K. Petersen
Browse files

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



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: default avatarPeter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20250722030841.1998783-8-peter.wang@mediatek.com


Reviewed-by: default avatarChun-Hung Wu <chun-hung.wu@mediatek.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 79967463

drivers/ufs/host/ufs-mediatek.c

+11 −3
Original line number Diff line number Diff line
@@ -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.",