lkml.org 
[lkml]   [2023]   [Apr]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V3 1/7] clk: imx: fracn-gppll: fix the rate table
Date
From: Peng Fan <peng.fan@nxp.com>

The Fvco should be range 2.4GHz to 5GHz, the original table voilate the
spec, so update the table to fix it.

Fixes: c196175acdd3 ("clk: imx: clk-fracn-gppll: Add more freq config for video pll")
Fixes: 044034efbeea ("clk: imx: clk-fracn-gppll: fix mfd value")
Fixes: 1b26cb8a77a4 ("clk: imx: support fracn gppll")
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
drivers/clk/imx/clk-fracn-gppll.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/imx/clk-fracn-gppll.c b/drivers/clk/imx/clk-fracn-gppll.c
index a2aaa14fc1ae..ec50c41e2a4c 100644
--- a/drivers/clk/imx/clk-fracn-gppll.c
+++ b/drivers/clk/imx/clk-fracn-gppll.c
@@ -60,18 +60,20 @@ struct clk_fracn_gppll {
};

/*
- * Fvco = Fref * (MFI + MFN / MFD)
- * Fout = Fvco / (rdiv * odiv)
+ * Fvco = (Fref / rdiv) * (MFI + MFN / MFD)
+ * Fout = Fvco / odiv
+ * The (Fref / rdiv) should be in range 20MHz to 40MHz
+ * The Fvco should be in range 2.5Ghz to 5Ghz
*/
static const struct imx_fracn_gppll_rate_table fracn_tbl[] = {
- PLL_FRACN_GP(650000000U, 81, 0, 1, 0, 3),
+ PLL_FRACN_GP(650000000U, 162, 50, 100, 0, 6),
PLL_FRACN_GP(594000000U, 198, 0, 1, 0, 8),
- PLL_FRACN_GP(560000000U, 70, 0, 1, 0, 3),
- PLL_FRACN_GP(498000000U, 83, 0, 1, 0, 4),
+ PLL_FRACN_GP(560000000U, 140, 0, 1, 0, 6),
+ PLL_FRACN_GP(498000000U, 166, 0, 1, 0, 8),
PLL_FRACN_GP(484000000U, 121, 0, 1, 0, 6),
PLL_FRACN_GP(445333333U, 167, 0, 1, 0, 9),
- PLL_FRACN_GP(400000000U, 50, 0, 1, 0, 3),
- PLL_FRACN_GP(393216000U, 81, 92, 100, 0, 5)
+ PLL_FRACN_GP(400000000U, 200, 0, 1, 0, 12),
+ PLL_FRACN_GP(393216000U, 163, 84, 100, 0, 10)
};

struct imx_fracn_gppll_clk imx_fracn_gppll = {
--
2.37.1
\
 
 \ /
  Last update: 2023-04-03 11:49    [W:0.109 / U:0.180 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site