linux-kernel - [PATCH 2/2] clk: samsung: Fixes PLL locktime for PLL142XX used on FSD platfom

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Message-Id: <20240930111859.22264-3-v.pavani@samsung.com>
Date: Mon, 30 Sep 2024 16:48:59 +0530
From: Varada Pavani <v.pavani@...sung.com>
To: krzk@...nel.org, s.nawrocki@...sung.com, cw00.choi@...sung.com,
	alim.akhtar@...sung.com, mturquette@...libre.com, sboyd@...nel.org,
	linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: aswani.reddy@...sung.com, pankaj.dubey@...sung.com,
	gost.dev@...sung.com, Varada Pavani <v.pavani@...sung.com>,
	stable@...r.kernel.org
Subject: [PATCH 2/2] clk: samsung: Fixes PLL locktime for PLL142XX used on
 FSD platfom

Add PLL locktime for PLL142XX controller.

Fixes: 4f346005aaed ("clk: samsung: fsd: Add initial clock support")
Cc: stable@...r.kernel.org
Signed-off-by: Varada Pavani <v.pavani@...sung.com>
---
 drivers/clk/samsung/clk-pll.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
index 4be879ab917e..d4c5ae20de4f 100644
--- a/drivers/clk/samsung/clk-pll.c
+++ b/drivers/clk/samsung/clk-pll.c
@@ -206,6 +206,7 @@ static const struct clk_ops samsung_pll3000_clk_ops = {
  */
 /* Maximum lock time can be 270 * PDIV cycles */
 #define PLL35XX_LOCK_FACTOR	(270)
+#define PLL142XX_LOCK_FACTOR	(150)
 
 #define PLL35XX_MDIV_MASK       (0x3FF)
 #define PLL35XX_PDIV_MASK       (0x3F)
@@ -272,7 +273,11 @@ static int samsung_pll35xx_set_rate(struct clk_hw *hw, unsigned long drate,
 	}
 
 	/* Set PLL lock time. */
-	writel_relaxed(rate->pdiv * PLL35XX_LOCK_FACTOR,
+	if (pll->type == pll_142xx)
+		writel_relaxed(rate->pdiv * PLL142XX_LOCK_FACTOR,
+			pll->lock_reg);
+	else
+		writel_relaxed(rate->pdiv * PLL35XX_LOCK_FACTOR,
 			pll->lock_reg);
 
 	/* Change PLL PMS values */
-- 
2.17.1