[PATCH v3 3/5] clk: samsung: clk-pll: Add support for pll_1061x

Alexandru Chimac <[email protected]>
Newsgroups org.kernel.vger.linux-clk,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-samsung-soc
Message-ID <[email protected]>
These PLLs are found in the Exynos9610 and Exynos9810 SoCs, and
are similar to pll_1460x (using CON3 instead of CON1), so the code
for that can handle this PLL with a few small adaptations.

Signed-off-by: Alexandru Chimac <[email protected]>
---
 drivers/clk/samsung/clk-pll.c | 29 ++++++++++++++++++++++-------
 drivers/clk/samsung/clk-pll.h |  1 +
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
index e74552846ba3..2cda87235fa2 100644
--- a/drivers/clk/samsung/clk-pll.c
+++ b/drivers/clk/samsung/clk-pll.c
@@ -781,15 +781,20 @@ static unsigned long samsung_pll46xx_recalc_rate(struct clk_hw *hw,
 	u64 fvco = parent_rate;
 
 	pll_con0 = readl_relaxed(pll->con_reg);
-	pll_con1 = readl_relaxed(pll->con_reg + 4);
-	mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & ((pll->type == pll_1460x) ?
+	if (pll->type == pll_1061x)
+		pll_con1 = readl_relaxed(pll->con_reg + 0xc);
+	else
+		pll_con1 = readl_relaxed(pll->con_reg + 0x4);
+	mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & (((pll->type == pll_1460x)
+				|| (pll->type == pll_1061x)) ?
 				PLL1460X_MDIV_MASK : PLL46XX_MDIV_MASK);
 	pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK;
 	sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK;
 	kdiv = pll->type == pll_4650c ? pll_con1 & PLL4650C_KDIV_MASK :
 					pll_con1 & PLL46XX_KDIV_MASK;
 
-	shift = ((pll->type == pll_4600) || (pll->type == pll_1460x)) ? 16 : 10;
+	shift = ((pll->type == pll_4600) || (pll->type == pll_1460x)
+		 || (pll->type == pll_1061x)) ? 16 : 10;
 
 	fvco *= (mdiv << shift) + kdiv;
 	do_div(fvco, (pdiv << sdiv));
@@ -827,7 +832,10 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate,
 	}
 
 	con0 = readl_relaxed(pll->con_reg);
-	con1 = readl_relaxed(pll->con_reg + 0x4);
+	if (pll->type == pll_1061x)
+		con1 = readl_relaxed(pll->con_reg + 0xc);
+	else
+		con1 = readl_relaxed(pll->con_reg + 0x4);
 
 	if (!(samsung_pll46xx_mpk_change(con0, con1, rate))) {
 		/* If only s change, change just s value only*/
@@ -845,7 +853,7 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate,
 		lock = 0xffff;
 
 	/* Set PLL PMS and VSEL values. */
-	if (pll->type == pll_1460x) {
+	if ((pll->type == pll_1460x) || (pll->type == pll_1061x)) {
 		con0 &= ~((PLL1460X_MDIV_MASK << PLL46XX_MDIV_SHIFT) |
 			(PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT) |
 			(PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT));
@@ -862,7 +870,10 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate,
 			(rate->sdiv << PLL46XX_SDIV_SHIFT);
 
 	/* Set PLL K, MFR and MRR values. */
-	con1 = readl_relaxed(pll->con_reg + 0x4);
+	if (pll->type == pll_1061x)
+		con1 = readl_relaxed(pll->con_reg + 0xc);
+	else
+		con1 = readl_relaxed(pll->con_reg + 0x4);
 	con1 &= ~((PLL46XX_KDIV_MASK << PLL46XX_KDIV_SHIFT) |
 			(PLL46XX_MFR_MASK << PLL46XX_MFR_SHIFT) |
 			(PLL46XX_MRR_MASK << PLL46XX_MRR_SHIFT));
@@ -873,7 +884,10 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate,
 	/* Write configuration to PLL */
 	writel_relaxed(lock, pll->lock_reg);
 	writel_relaxed(con0, pll->con_reg);
-	writel_relaxed(con1, pll->con_reg + 0x4);
+	if (pll->type == pll_1061x)
+		writel_relaxed(con1, pll->con_reg + 0xc);
+	else
+		writel_relaxed(con1, pll->con_reg + 0x4);
 
 	/* Wait for PLL lock */
 	return samsung_pll_lock_wait(pll, PLL46XX_LOCKED);
@@ -1700,6 +1714,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
 	case pll_4650:
 	case pll_4650c:
 	case pll_1460x:
+	case pll_1061x:
 		if (!pll->rate_count)
 			init.ops = &samsung_pll46xx_clk_min_ops;
 		else
diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h
index d6eb3246611b..44f5e99d303d 100644
--- a/drivers/clk/samsung/clk-pll.h
+++ b/drivers/clk/samsung/clk-pll.h
@@ -45,6 +45,7 @@ enum samsung_pll_type {
 	pll_531x,
 	pll_1051x,
 	pll_1052x,
+	pll_1061x,
 	pll_0717x,
 	pll_0718x,
 	pll_0732x,

-- 
2.54.0
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.