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Date:   Mon, 20 Nov 2023 17:19:05 +0000
From:   Daniel Golle <daniel@makrotopia.org>
To:     Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Sabrina Dubroca <sd@queasysnail.net>,
        Daniel Golle <daniel@makrotopia.org>,
        Jianhui Zhao <zhaojh329@gmail.com>,
        Chen-Yu Tsai <wenst@chromium.org>,
        "Garmin.Chang" <Garmin.Chang@mediatek.com>,
        Edward-JW Yang <edward-jw.yang@mediatek.com>,
        Johnson Wang <johnson.wang@mediatek.com>,
        Sam Shih <sam.shih@mediatek.com>,
        Frank Wunderlich <frank-w@public-files.de>,
        Dan Carpenter <dan.carpenter@linaro.org>,
        James Liao <jamesjj.liao@mediatek.com>,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-clk@vger.kernel.org,
        netdev@vger.kernel.org
Subject: [PATCH v2 3/4] clk: mediatek: Add pcw_chg_shift control
Message-ID: <cb983f0d30f019120cf49f24efb655cf794084d3.1700498124.git.daniel@makrotopia.org>
References: <b277c5f084ff35849efb8250510b2536053d1316.1700498124.git.daniel@makrotopia.org>
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Precedence: bulk

Introduce pcw_chg_shfit control to optionally use that instead of the
hardcoded PCW_CHG_MASK macro.
This will needed for clocks on the MT7988 SoC.

Signed-off-by: Sam Shih <sam.shih@mediatek.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 drivers/clk/mediatek/clk-pll.c | 5 ++++-
 drivers/clk/mediatek/clk-pll.h | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/mediatek/clk-pll.c b/drivers/clk/mediatek/clk-pll.c
index 513ab6b1b3229..9f08bc5d2a8a2 100644
--- a/drivers/clk/mediatek/clk-pll.c
+++ b/drivers/clk/mediatek/clk-pll.c
@@ -114,7 +114,10 @@ static void mtk_pll_set_rate_regs(struct mtk_clk_pll *pll, u32 pcw,
 			pll->data->pcw_shift);
 	val |= pcw << pll->data->pcw_shift;
 	writel(val, pll->pcw_addr);
-	chg = readl(pll->pcw_chg_addr) | PCW_CHG_MASK;
+	if (pll->data->pcw_chg_shift)
+		chg = readl(pll->pcw_chg_addr) | BIT(pll->data->pcw_chg_shift);
+	else
+		chg = readl(pll->pcw_chg_addr) | PCW_CHG_MASK;
 	writel(chg, pll->pcw_chg_addr);
 	if (pll->tuner_addr)
 		writel(val + 1, pll->tuner_addr);
diff --git a/drivers/clk/mediatek/clk-pll.h b/drivers/clk/mediatek/clk-pll.h
index f17278ff15d78..d28d317e84377 100644
--- a/drivers/clk/mediatek/clk-pll.h
+++ b/drivers/clk/mediatek/clk-pll.h
@@ -44,6 +44,7 @@ struct mtk_pll_data {
 	u32 pcw_reg;
 	int pcw_shift;
 	u32 pcw_chg_reg;
+	int pcw_chg_shift;
 	const struct mtk_pll_div_table *div_table;
 	const char *parent_name;
 	u32 en_reg;
-- 
2.42.1