clk: mediatek: use en_mask as a pure div_en_mask

We no longer allow en_mask to be a combination of
pll_en_bit and div_en_mask, so remove pll_en_bit(bit0)
from en_mask to make en_mask a pure en_mask that only
used for pll dividers.

This commit continues the work done in commit 7cc4e1bbe300
("clk: mediatek: Fix asymmetrical PLL enable and disable
control") and commit f384c44754b7 ("clk: mediatek:
Add configurable enable control to mtk_pll_data") to
clean up en_mask(bit0) default setting.

Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Mandy Liu <mandyjh.liu@mediatek.com>
Link: https://lore.kernel.org/r/20220513073621.12923-1-mandyjh.liu@mediatek.com
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/clk/mediatek/clk-pll.c b/drivers/clk/mediatek/clk-pll.c
index ccaa2085ab4d..a7fcdc189ecd 100644
--- a/drivers/clk/mediatek/clk-pll.c
+++ b/drivers/clk/mediatek/clk-pll.c
@@ -243,7 +243,6 @@ static int mtk_pll_prepare(struct clk_hw *hw)
 {
 	struct mtk_clk_pll *pll = to_mtk_clk_pll(hw);
 	u32 r;
-	u32 div_en_mask;
 
 	r = readl(pll->pwr_addr) | CON0_PWR_ON;
 	writel(r, pll->pwr_addr);
@@ -256,9 +255,8 @@ static int mtk_pll_prepare(struct clk_hw *hw)
 	r = readl(pll->en_addr) | BIT(pll->data->pll_en_bit);
 	writel(r, pll->en_addr);
 
-	div_en_mask = pll->data->en_mask & ~CON0_BASE_EN;
-	if (div_en_mask) {
-		r = readl(pll->base_addr + REG_CON0) | div_en_mask;
+	if (pll->data->en_mask) {
+		r = readl(pll->base_addr + REG_CON0) | pll->data->en_mask;
 		writel(r, pll->base_addr + REG_CON0);
 	}
 
@@ -279,7 +277,6 @@ static void mtk_pll_unprepare(struct clk_hw *hw)
 {
 	struct mtk_clk_pll *pll = to_mtk_clk_pll(hw);
 	u32 r;
-	u32 div_en_mask;
 
 	if (pll->data->flags & HAVE_RST_BAR) {
 		r = readl(pll->base_addr + REG_CON0);
@@ -289,9 +286,8 @@ static void mtk_pll_unprepare(struct clk_hw *hw)
 
 	__mtk_pll_tuner_disable(pll);
 
-	div_en_mask = pll->data->en_mask & ~CON0_BASE_EN;
-	if (div_en_mask) {
-		r = readl(pll->base_addr + REG_CON0) & ~div_en_mask;
+	if (pll->data->en_mask) {
+		r = readl(pll->base_addr + REG_CON0) & ~pll->data->en_mask;
 		writel(r, pll->base_addr + REG_CON0);
 	}