From: Naveen Krishna Ch <naveenkrishna.ch@xxxxxxxxx>
PLL145xx is similar to PLL35xx and PLL1460x is almost similar
to PLL46xx with minor differences in bit positions. Hence,
reuse the functions defined for pll_35xx and pll_46xx to
support 145xx and 1460x PLLs respectively.
Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch@xxxxxxxxx>
Signed-off-by: Abhilash Kesavan <a.kesavan@xxxxxxxxxxx>
Reviewed-by: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
Tested-by: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
Cc: Tomasz Figa <tomasz.figa@xxxxxxxxx>
Cc: Mike Turquette <mturquette@xxxxxxxxxx>
---
drivers/clk/samsung/clk-pll.c | 25 ++++++++++++++++++++-----
drivers/clk/samsung/clk-pll.h | 4 ++++
2 files changed, 24 insertions(+), 5 deletions(-)
diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
index b07fad2..9d70e5c 100644
--- a/drivers/clk/samsung/clk-pll.c
+++ b/drivers/clk/samsung/clk-pll.c
@@ -482,6 +482,8 @@ static const struct clk_ops samsung_pll45xx_clk_min_ops = {
#define PLL46XX_VSEL_MASK (1)
#define PLL46XX_MDIV_MASK (0x1FF)
+#define PLL1460X_MDIV_MASK (0x3FF)
+
#define PLL46XX_PDIV_MASK (0x3F)
#define PLL46XX_SDIV_MASK (0x7)
#define PLL46XX_VSEL_SHIFT (27)
@@ -511,13 +513,15 @@ static unsigned long samsung_pll46xx_recalc_rate(struct clk_hw *hw,
pll_con0 = __raw_readl(pll->con_reg);
pll_con1 = __raw_readl(pll->con_reg + 4);
- mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & PLL46XX_MDIV_MASK;
+ mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & ((pll->type == pll_1460x) ?
+ 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 ? 16 : 10;
+ shift = ((pll->type == pll_4600) || (pll->type == pll_1460x)) ? 16 : 10;
+
fvco *= (mdiv << shift) + kdiv;
do_div(fvco, (pdiv << sdiv));
fvco >>= shift;
@@ -573,14 +577,21 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate,
lock = 0xffff;
/* Set PLL PMS and VSEL values. */
- con0 &= ~((PLL46XX_MDIV_MASK << PLL46XX_MDIV_SHIFT) |
+ if (pll->type == pll_1460x) {
+ con0 &= ~((PLL1460X_MDIV_MASK << PLL46XX_MDIV_SHIFT) |
+ (PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT) |
+ (PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT));
+ } else {
+ con0 &= ~((PLL46XX_MDIV_MASK << PLL46XX_MDIV_SHIFT) |
(PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT) |
(PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT) |
(PLL46XX_VSEL_MASK << PLL46XX_VSEL_SHIFT));
+ con0 |= rate->vsel << PLL46XX_VSEL_SHIFT;
+ }
+
con0 |= (rate->mdiv << PLL46XX_MDIV_SHIFT) |
(rate->pdiv << PLL46XX_PDIV_SHIFT) |
- (rate->sdiv << PLL46XX_SDIV_SHIFT) |
- (rate->vsel << PLL46XX_VSEL_SHIFT);
+ (rate->sdiv << PLL46XX_SDIV_SHIFT);
/* Set PLL K, MFR and MRR values. */
con1 = __raw_readl(pll->con_reg + 0x4);
@@ -1190,6 +1201,9 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
/* clk_ops for 35xx and 2550 are similar */
case pll_35xx:
case pll_2550:
+ case pll_1450x:
+ case pll_1451x:
+ case pll_1452x:
if (!pll->rate_table)
init.ops = &samsung_pll35xx_clk_min_ops;
else
@@ -1223,6 +1237,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
case pll_4600:
case pll_4650:
case pll_4650c:
+ case pll_1460x:
if (!pll->rate_table)
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 c0ed4d4..213de9a 100644
--- a/drivers/clk/samsung/clk-pll.h
+++ b/drivers/clk/samsung/clk-pll.h
@@ -33,6 +33,10 @@ enum samsung_pll_type {
pll_s3c2440_mpll,
pll_2550xx,
pll_2650xx,
+ pll_1450x,
+ pll_1451x,
+ pll_1452x,
+ pll_1460x,
};
#define PLL_35XX_RATE(_rate, _m, _p, _s) \
--
2.1.0
--
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