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LibreELEC.tv/packages/linux/patches/rockchip-old/rockchip-0017-WIP-1000-HACK-clk-rockchip-rk3399-dedicate-vpll-for-.patch
Christian Hewitt 16d8875e4f linux: update rockchip-old to Linux 6.16.7 
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
2025-09-22 13:54:39 +00:00

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From ed694c5dd001424e07813b9a8d733798722e4cea Mon Sep 17 00:00:00 2001
From: Jonas Karlman <jonas@kwiboo.se>
Date: Mon, 25 May 2020 20:36:45 +0000
Subject: [PATCH 17/59] WIP/1000: HACK: clk: rockchip: rk3399: dedicate vpll
for vopb and hdmi use
Rockchip PLLs are kown provide the least jitter for
vco rates between 800 MHz and 2 GHz. I added the
rates for VPLL which are used for VOPs dclk and there-
fore HDMI phy in that manner and used the rates which
require the lowest frac divs.
Additionally I added some rates which are useful to
provide additional VESA and non-VESA rates for HDMI
output.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Alex Bee <knaerzche@gmail.com>
---
drivers/clk/rockchip/clk-rk3399.c | 49 ++++++++++++++++++++++++++-----
1 file changed, 42 insertions(+), 7 deletions(-)
diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c
index c2b243d7a5e2..a7e397fa9893 100644
--- a/drivers/clk/rockchip/clk-rk3399.c
+++ b/drivers/clk/rockchip/clk-rk3399.c
@@ -105,6 +105,39 @@ static struct rockchip_pll_rate_table rk3399_pll_rates[] = {
{ /* sentinel */ },
};
+static struct rockchip_pll_rate_table rk3399_vpll_rates[] = {
+ /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
+ RK3036_PLL_RATE( 594000000, 1, 74, 3, 1, 0, 4194304), /* vco = 1782000000 fout = 594000000 */
+ RK3036_PLL_RATE( 593406592, 1, 74, 3, 1, 0, 2949838), /* vco = 1780219777 fout = 593406592.36908 */
+ RK3036_PLL_RATE( 319750000, 1, 79, 6, 1, 0, 15728640), /* vco = 1918500000 fout = 319750000 */
+ RK3036_PLL_RATE( 297000000, 1, 74, 6, 1, 0, 4194304), /* vco = 1782000000 fout = 297000000 */
+ RK3036_PLL_RATE( 296703296, 1, 74, 6, 1, 0, 2949838), /* vco = 1780219777 fout = 296703296.18454 */
+ RK3036_PLL_RATE( 241500000, 1, 60, 6, 1, 0, 6291456), /* vco = 1449000000 fout = 241500000 */
+ RK3036_PLL_RATE( 162000000, 1, 67, 5, 2, 0, 8388608), /* vco = 1620000000 fout = 162000000 */
+ RK3036_PLL_RATE( 148500000, 1, 74, 6, 2, 0, 4194304), /* vco = 1782000000 fout = 148500000*/
+ RK3036_PLL_RATE( 148351648, 1, 74, 6, 2, 0, 2949838), /* vco = 1780219777 fout = 148351648.09227 */
+ RK3036_PLL_RATE( 136750000, 1, 68, 2, 6, 0, 6291456), /* vco = 1641000000 fout = 136750000 */
+ RK3036_PLL_RATE( 135000000, 1, 56, 5, 2, 0, 4194304), /* vco = 1350000000 fout = 135000000 */
+ RK3036_PLL_RATE( 119000000, 1, 59, 6, 2, 0, 8388608), /* vco = 1428000000 fout = 119000000 */
+ RK3036_PLL_RATE( 108000000, 1, 63, 7, 2, 1, 0), /* vco = 1512000000 fout = 108000000 */
+ RK3036_PLL_RATE( 106500000, 1, 62, 7, 2, 0, 2097152), /* vco = 1491000000 fout = 106500000 */
+ RK3036_PLL_RATE( 88750000, 1, 55, 5, 3, 0, 7864320), /* vco = 1331250000 fout = 88750000 */
+ RK3036_PLL_RATE( 85500000, 1, 57, 4, 4, 1, 0), /* vco = 1368000000 fout = 85500000 */
+ RK3036_PLL_RATE( 78750000, 1, 59, 6, 3, 0, 1048576), /* vco = 1417500000 fout = 78750000 */
+ RK3036_PLL_RATE( 74250000, 1, 74, 6, 4, 0, 4194304), /* vco = 1782000000 fout = 74250000 */
+ RK3036_PLL_RATE( 74175824, 1, 74, 6, 4, 0, 2949838), /* vco = 1780219777 fout = 74175824.046135 */
+ RK3036_PLL_RATE( 71000000, 1, 71, 6, 4, 1, 0), /* vco = 1704000000 fout = 71000000 */
+ RK3036_PLL_RATE( 65000000, 1, 65, 6, 4, 0, 0), /* vco = 1560000000 fout = 65000000 */
+ RK3036_PLL_RATE( 59340659, 1, 59, 6, 4, 0, 5715310), /* vco = 1424175816 fout = 59340659.022331 */
+ RK3036_PLL_RATE( 54000000, 1, 63, 7, 4, 1, 0), /* vco = 1512000000 fout = 54000000 */
+ RK3036_PLL_RATE( 49500000, 1, 72, 5, 7, 0, 3145728), /* vco = 1732500000 fout = 49500000 */
+ RK3036_PLL_RATE( 40000000, 1, 70, 7, 6, 1, 0), /* vco = 1680000000 fout = 40000000 */
+ RK3036_PLL_RATE( 31500000, 1, 55, 7, 6, 0, 2097152), /* vco = 1323000000 fout = 31500000 */
+ RK3036_PLL_RATE( 27000000, 1, 55, 7, 7, 0, 2097152), /* vco = 1323000000 fout = 27000000 */
+ RK3036_PLL_RATE( 26973026, 1, 55, 7, 7, 0, 1173214), /* vco = 1321678296 fout = 26973026.450799 */
+ { /* sentinel */ },
+};
+
/* CRU parents */
PNAME(mux_pll_p) = { "xin24m", "xin32k" };
@@ -123,7 +156,7 @@ PNAME(mux_ddrclk_p) = { "clk_ddrc_lpll_src",
PNAME(mux_aclk_cci_p) = { "cpll_aclk_cci_src",
"gpll_aclk_cci_src",
"npll_aclk_cci_src",
- "vpll_aclk_cci_src" };
+ "prevent:vpll" };
PNAME(mux_cci_trace_p) = { "cpll_cci_trace",
"gpll_cci_trace" };
PNAME(mux_cs_p) = { "cpll_cs", "gpll_cs",
@@ -149,10 +182,12 @@ PNAME(mux_pll_src_cpll_gpll_npll_upll_24m_p) = { "cpll", "gpll", "npll",
PNAME(mux_pll_src_cpll_gpll_npll_ppll_upll_24m_p) = { "cpll", "gpll", "npll",
"ppll", "upll", "xin24m" };
-PNAME(mux_pll_src_vpll_cpll_gpll_p) = { "vpll", "cpll", "gpll" };
-PNAME(mux_pll_src_vpll_cpll_gpll_npll_p) = { "vpll", "cpll", "gpll",
+PNAME(mux_pll_src_vpll_cpll_gpll_p) = { "prevent:vpll", "cpll", "gpll" };
+PNAME(vop0_mux_pll_src_vpll_cpll_gpll_p) = { "vpll", "prevent:cpll", "prevent:gpll" };
+
+PNAME(mux_pll_src_vpll_cpll_gpll_npll_p) = { "prevent:vpll", "cpll", "gpll",
"npll" };
-PNAME(mux_pll_src_vpll_cpll_gpll_24m_p) = { "vpll", "cpll", "gpll",
+PNAME(mux_pll_src_vpll_cpll_gpll_24m_p) = { "prevent:vpll", "cpll", "gpll",
"xin24m" };
PNAME(mux_dclk_vop0_p) = { "dclk_vop0_div",
@@ -229,7 +264,7 @@ static struct rockchip_pll_clock rk3399_pll_clks[] __initdata = {
[npll] = PLL(pll_rk3399, PLL_NPLL, "npll", mux_pll_p, 0, RK3399_PLL_CON(40),
RK3399_PLL_CON(43), 8, 31, ROCKCHIP_PLL_SYNC_RATE, rk3399_pll_rates),
[vpll] = PLL(pll_rk3399, PLL_VPLL, "vpll", mux_pll_p, 0, RK3399_PLL_CON(48),
- RK3399_PLL_CON(51), 8, 31, ROCKCHIP_PLL_SYNC_RATE, rk3399_pll_rates),
+ RK3399_PLL_CON(51), 8, 31, ROCKCHIP_PLL_SYNC_RATE, rk3399_vpll_rates),
};
static struct rockchip_pll_clock rk3399_pmu_pll_clks[] __initdata = {
@@ -279,7 +314,7 @@ static struct rockchip_clk_branch rk3399_uart4_pmu_fracmux __initdata =
RK3399_PMU_CLKSEL_CON(5), 8, 2, MFLAGS);
static struct rockchip_clk_branch rk3399_dclk_vop0_fracmux __initdata =
- MUX(DCLK_VOP0, "dclk_vop0", mux_dclk_vop0_p, CLK_SET_RATE_PARENT,
+ MUX(DCLK_VOP0, "dclk_vop0", mux_dclk_vop0_p, CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT,
RK3399_CLKSEL_CON(49), 11, 1, MFLAGS);
static struct rockchip_clk_branch rk3399_dclk_vop1_fracmux __initdata =
@@ -1162,7 +1197,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
GATE(HCLK_VOP0_NOC, "hclk_vop0_noc", "hclk_vop0_pre", CLK_IGNORE_UNUSED,
RK3399_CLKGATE_CON(28), 0, GFLAGS),
- COMPOSITE(DCLK_VOP0_DIV, "dclk_vop0_div", mux_pll_src_vpll_cpll_gpll_p, 0,
+ COMPOSITE(DCLK_VOP0_DIV, "dclk_vop0_div", vop0_mux_pll_src_vpll_cpll_gpll_p, CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT,
RK3399_CLKSEL_CON(49), 8, 2, MFLAGS, 0, 8, DFLAGS,
RK3399_CLKGATE_CON(10), 12, GFLAGS),
--
2.34.1
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