[PATCH v3 7/9] ufs: host: mediatek: Add clock scaling query function

[peter.wang at mediatek.com]

From: Peter Wang <peter.wang at mediatek.com>

This patch introduces 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 at mediatek.com>
Reviewed-by: Chun-Hung Wu <chun-hung.wu at mediatek.com>
---
 drivers/ufs/host/ufs-mediatek.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index 28aba44068da..0b3cce8d9787 100644
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -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.",
-- 
2.45.2