[PATCH v3 1/5] clk: rockchip: Add supprot to limit input rate for fractional divider

From: Elaine Zhang
Date: Thu Sep 26 2019 - 23:08:17 EST

From: Finley Xiao <finley.xiao@xxxxxxxxxxxxxx>

>From Rockchips fractional divider usage, some clocks can be generated
by fractional divider, but the input clock frequency of fractional
divider should be less than a specified value.

Signed-off-by: Finley Xiao <finley.xiao@xxxxxxxxxxxxxx>
Signed-off-by: Elaine Zhang <zhangqing@xxxxxxxxxxxxxx>
---
drivers/clk/rockchip/clk-px30.c | 29 ++++++++++++------------
drivers/clk/rockchip/clk-rk3036.c | 13 ++++++-----
drivers/clk/rockchip/clk-rk3128.c | 15 ++++++++-----
drivers/clk/rockchip/clk-rk3188.c | 24 +++++++++++---------
drivers/clk/rockchip/clk-rk3228.c | 18 +++++++++------
drivers/clk/rockchip/clk-rk3288.c | 19 +++++++++-------
drivers/clk/rockchip/clk-rk3308.c | 46 ++++++++++++++++++++++-----------------
drivers/clk/rockchip/clk-rk3328.c | 17 +++++++++------
drivers/clk/rockchip/clk-rk3368.c | 17 +++++++++------
drivers/clk/rockchip/clk-rk3399.c | 32 ++++++++++++++++-----------
drivers/clk/rockchip/clk-rv1108.c | 14 +++++++-----
drivers/clk/rockchip/clk.c | 21 +++++++++++++++---
drivers/clk/rockchip/clk.h | 10 ++++++---
include/linux/clk-provider.h | 2 ++
14 files changed, 168 insertions(+), 109 deletions(-)

diff --git a/drivers/clk/rockchip/clk-px30.c b/drivers/clk/rockchip/clk-px30.c
index 3a501896b280..6c2f53dc73b6 100644
--- a/drivers/clk/rockchip/clk-px30.c
+++ b/drivers/clk/rockchip/clk-px30.c
@@ -13,6 +13,7 @@
#include "clk.h"

#define PX30_GRF_SOC_STATUS0 0x480
+#define PX30_FRAC_MAX_PRATE 600000000

enum px30_plls {
apll, dpll, cpll, npll, apll_b_h, apll_b_l,
@@ -420,7 +421,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "dclk_vopb_frac", "dclk_vopb_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(6), 0,
PX30_CLKGATE_CON(2), 3, GFLAGS,
- &px30_dclk_vopb_fracmux),
+ &px30_dclk_vopb_fracmux, 0),
GATE(DCLK_VOPB, "dclk_vopb", "dclk_vopb_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(2), 4, GFLAGS),
COMPOSITE(0, "dclk_vopl_src", mux_npll_cpll_p, 0,
@@ -429,7 +430,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "dclk_vopl_frac", "dclk_vopl_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(9), 0,
PX30_CLKGATE_CON(2), 7, GFLAGS,
- &px30_dclk_vopl_fracmux),
+ &px30_dclk_vopl_fracmux, 0),
GATE(DCLK_VOPL, "dclk_vopl", "dclk_vopl_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(2), 8, GFLAGS),

@@ -555,7 +556,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_pdm_frac", "clk_pdm_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(27), 0,
PX30_CLKGATE_CON(9), 10, GFLAGS,
- &px30_pdm_fracmux),
+ &px30_pdm_fracmux, PX30_FRAC_MAX_PRATE),
GATE(SCLK_PDM, "clk_pdm", "clk_pdm_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(9), 11, GFLAGS),

@@ -565,7 +566,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_i2s0_tx_frac", "clk_i2s0_tx_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(29), 0,
PX30_CLKGATE_CON(9), 13, GFLAGS,
- &px30_i2s0_tx_fracmux),
+ &px30_i2s0_tx_fracmux, PX30_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S0_TX, "clk_i2s0_tx", mux_i2s0_tx_rx_p, CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(28), 12, 1, MFLAGS,
PX30_CLKGATE_CON(9), 14, GFLAGS),
@@ -581,7 +582,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_i2s0_rx_frac", "clk_i2s0_rx_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(59), 0,
PX30_CLKGATE_CON(17), 1, GFLAGS,
- &px30_i2s0_rx_fracmux),
+ &px30_i2s0_rx_fracmux, PX30_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S0_RX, "clk_i2s0_rx", mux_i2s0_rx_tx_p, CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(58), 12, 1, MFLAGS,
PX30_CLKGATE_CON(17), 2, GFLAGS),
@@ -597,7 +598,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_i2s1_frac", "clk_i2s1_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(31), 0,
PX30_CLKGATE_CON(10), 1, GFLAGS,
- &px30_i2s1_fracmux),
+ &px30_i2s1_fracmux, PX30_FRAC_MAX_PRATE),
GATE(SCLK_I2S1, "clk_i2s1", "clk_i2s1_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(10), 2, GFLAGS),
COMPOSITE_NODIV(0, "clk_i2s1_out_pre", mux_i2s1_out_p, 0,
@@ -612,7 +613,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_i2s2_frac", "clk_i2s2_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(33), 0,
PX30_CLKGATE_CON(10), 5, GFLAGS,
- &px30_i2s2_fracmux),
+ &px30_i2s2_fracmux, PX30_FRAC_MAX_PRATE),
GATE(SCLK_I2S2, "clk_i2s2", "clk_i2s2_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(10), 6, GFLAGS),
COMPOSITE_NODIV(0, "clk_i2s2_out_pre", mux_i2s2_out_p, 0,
@@ -630,7 +631,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart1_frac", "clk_uart1_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(36), 0,
PX30_CLKGATE_CON(10), 14, GFLAGS,
- &px30_uart1_fracmux),
+ &px30_uart1_fracmux, PX30_FRAC_MAX_PRATE),
GATE(SCLK_UART1, "clk_uart1", "clk_uart1_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(10), 15, GFLAGS),

@@ -643,7 +644,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart2_frac", "clk_uart2_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(39), 0,
PX30_CLKGATE_CON(11), 2, GFLAGS,
- &px30_uart2_fracmux),
+ &px30_uart2_fracmux, PX30_FRAC_MAX_PRATE),
GATE(SCLK_UART2, "clk_uart2", "clk_uart2_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(11), 3, GFLAGS),

@@ -656,7 +657,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart3_frac", "clk_uart3_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(42), 0,
PX30_CLKGATE_CON(11), 6, GFLAGS,
- &px30_uart3_fracmux),
+ &px30_uart3_fracmux, PX30_FRAC_MAX_PRATE),
GATE(SCLK_UART3, "clk_uart3", "clk_uart3_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(11), 7, GFLAGS),

@@ -669,7 +670,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart4_frac", "clk_uart4_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(45), 0,
PX30_CLKGATE_CON(11), 10, GFLAGS,
- &px30_uart4_fracmux),
+ &px30_uart4_fracmux, PX30_FRAC_MAX_PRATE),
GATE(SCLK_UART4, "clk_uart4", "clk_uart4_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(11), 11, GFLAGS),

@@ -682,7 +683,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart5_frac", "clk_uart5_src", CLK_SET_RATE_PARENT,
PX30_CLKSEL_CON(48), 0,
PX30_CLKGATE_CON(11), 14, GFLAGS,
- &px30_uart5_fracmux),
+ &px30_uart5_fracmux, PX30_FRAC_MAX_PRATE),
GATE(SCLK_UART5, "clk_uart5", "clk_uart5_mux", CLK_SET_RATE_PARENT,
PX30_CLKGATE_CON(11), 15, GFLAGS),

@@ -882,7 +883,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_rtc32k_frac", "xin24m", CLK_IGNORE_UNUSED,
PX30_PMU_CLKSEL_CON(1), 0,
PX30_PMU_CLKGATE_CON(0), 13, GFLAGS,
- &px30_rtc32k_pmu_fracmux),
+ &px30_rtc32k_pmu_fracmux, 0),

COMPOSITE_NOMUX(XIN24M_DIV, "xin24m_div", "xin24m", CLK_IGNORE_UNUSED,
PX30_PMU_CLKSEL_CON(0), 8, 5, DFLAGS,
@@ -904,7 +905,7 @@ enum px30_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart0_frac", "clk_uart0_pmu_src", CLK_SET_RATE_PARENT,
PX30_PMU_CLKSEL_CON(5), 0,
PX30_PMU_CLKGATE_CON(1), 2, GFLAGS,
- &px30_uart0_pmu_fracmux),
+ &px30_uart0_pmu_fracmux, PX30_FRAC_MAX_PRATE),
GATE(SCLK_UART0_PMU, "clk_uart0_pmu", "clk_uart0_pmu_mux", CLK_SET_RATE_PARENT,
PX30_PMU_CLKGATE_CON(1), 3, GFLAGS),

diff --git a/drivers/clk/rockchip/clk-rk3036.c b/drivers/clk/rockchip/clk-rk3036.c
index 6a46f85ad837..80876c8f8c9d 100644
--- a/drivers/clk/rockchip/clk-rk3036.c
+++ b/drivers/clk/rockchip/clk-rk3036.c
@@ -16,6 +16,9 @@
#include "clk.h"

#define RK3036_GRF_SOC_STATUS0 0x14c
+#define RK3036_UART_FRAC_MAX_PRATE 600000000
+#define RK3036_I2S_FRAC_MAX_PRATE 600000000
+#define RK3036_SPDIF_FRAC_MAX_PRATE 600000000

enum rk3036_plls {
apll, dpll, gpll,
@@ -248,15 +251,15 @@ enum rk3036_plls {
COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(17), 0,
RK2928_CLKGATE_CON(1), 9, GFLAGS,
- &rk3036_uart0_fracmux),
+ &rk3036_uart0_fracmux, RK3036_UART_FRAC_MAX_PRATE),
COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(18), 0,
RK2928_CLKGATE_CON(1), 11, GFLAGS,
- &rk3036_uart1_fracmux),
+ &rk3036_uart1_fracmux, RK3036_UART_FRAC_MAX_PRATE),
COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(19), 0,
RK2928_CLKGATE_CON(1), 13, GFLAGS,
- &rk3036_uart2_fracmux),
+ &rk3036_uart2_fracmux, RK3036_UART_FRAC_MAX_PRATE),

COMPOSITE(0, "aclk_vcodec", mux_pll_src_3plls_p, 0,
RK2928_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS,
@@ -309,7 +312,7 @@ enum rk3036_plls {
COMPOSITE_FRACMUX(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(7), 0,
RK2928_CLKGATE_CON(0), 10, GFLAGS,
- &rk3036_i2s_fracmux),
+ &rk3036_i2s_fracmux, RK3036_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_clkout", mux_i2s_clkout_p, 0,
RK2928_CLKSEL_CON(3), 12, 1, MFLAGS,
RK2928_CLKGATE_CON(0), 13, GFLAGS),
@@ -322,7 +325,7 @@ enum rk3036_plls {
COMPOSITE_FRACMUX(0, "spdif_frac", "spdif_src", 0,
RK2928_CLKSEL_CON(9), 0,
RK2928_CLKGATE_CON(2), 12, GFLAGS,
- &rk3036_spdif_fracmux),
+ &rk3036_spdif_fracmux, RK3036_SPDIF_FRAC_MAX_PRATE),

GATE(SCLK_OTGPHY0, "sclk_otgphy0", "xin12m", CLK_IGNORE_UNUSED,
RK2928_CLKGATE_CON(1), 5, GFLAGS),
diff --git a/drivers/clk/rockchip/clk-rk3128.c b/drivers/clk/rockchip/clk-rk3128.c
index 4b1122e98e16..9eecd56d06db 100644
--- a/drivers/clk/rockchip/clk-rk3128.c
+++ b/drivers/clk/rockchip/clk-rk3128.c
@@ -13,6 +13,9 @@
#include "clk.h"

#define RK3128_GRF_SOC_STATUS0 0x14c
+#define RK3128_UART_FRAC_MAX_PRATE 600000000
+#define RK3128_I2S_FRAC_MAX_PRATE 600000000
+#define RK3128_SPDIF_FRAC_MAX_PRATE 600000000

enum rk3128_plls {
apll, dpll, cpll, gpll,
@@ -359,7 +362,7 @@ enum rk3128_plls {
COMPOSITE_FRACMUX(0, "i2s0_frac", "i2s0_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(8), 0,
RK2928_CLKGATE_CON(4), 5, GFLAGS,
- &rk3128_i2s0_fracmux),
+ &rk3128_i2s0_fracmux, RK3128_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S0, "sclk_i2s0", "i2s0_pre", CLK_SET_RATE_PARENT,
RK2928_CLKGATE_CON(4), 6, GFLAGS),

@@ -369,7 +372,7 @@ enum rk3128_plls {
COMPOSITE_FRACMUX(0, "i2s1_frac", "i2s1_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(7), 0,
RK2928_CLKGATE_CON(0), 10, GFLAGS,
- &rk3128_i2s1_fracmux),
+ &rk3128_i2s1_fracmux, RK3128_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S1, "sclk_i2s1", "i2s1_pre", CLK_SET_RATE_PARENT,
RK2928_CLKGATE_CON(0), 14, GFLAGS),
COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_out", mux_i2s_out_p, 0,
@@ -382,7 +385,7 @@ enum rk3128_plls {
COMPOSITE_FRACMUX(0, "spdif_frac", "sclk_spdif_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(20), 0,
RK2928_CLKGATE_CON(2), 12, GFLAGS,
- &rk3128_spdif_fracmux),
+ &rk3128_spdif_fracmux, RK3128_SPDIF_FRAC_MAX_PRATE),

GATE(0, "jtag", "ext_jtag", CLK_IGNORE_UNUSED,
RK2928_CLKGATE_CON(1), 3, GFLAGS),
@@ -419,15 +422,15 @@ enum rk3128_plls {
COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(17), 0,
RK2928_CLKGATE_CON(1), 9, GFLAGS,
- &rk3128_uart0_fracmux),
+ &rk3128_uart0_fracmux, RK3128_UART_FRAC_MAX_PRATE),
COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(18), 0,
RK2928_CLKGATE_CON(1), 11, GFLAGS,
- &rk3128_uart1_fracmux),
+ &rk3128_uart1_fracmux, RK3128_UART_FRAC_MAX_PRATE),
COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(19), 0,
RK2928_CLKGATE_CON(1), 13, GFLAGS,
- &rk3128_uart2_fracmux),
+ &rk3128_uart2_fracmux, RK3128_UART_FRAC_MAX_PRATE),

COMPOSITE(SCLK_MAC_SRC, "sclk_gmac_src", mux_pll_src_3plls_p, 0,
RK2928_CLKSEL_CON(5), 6, 2, MFLAGS, 0, 5, DFLAGS,
diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c
index 77aebfb1d6d5..4823f5ca943d 100644
--- a/drivers/clk/rockchip/clk-rk3188.c
+++ b/drivers/clk/rockchip/clk-rk3188.c
@@ -14,6 +14,10 @@

#define RK3066_GRF_SOC_STATUS 0x15c
#define RK3188_GRF_SOC_STATUS 0xac
+#define RK3188_UART_FRAC_MAX_PRATE 600000000
+#define RK3188_I2S_FRAC_MAX_PRATE 600000000
+#define RK3188_SPDIF_FRAC_MAX_PRATE 600000000
+#define RK3188_HSADC_FRAC_MAX_PRATE 300000000

enum rk3188_plls {
apll, cpll, dpll, gpll,
@@ -363,7 +367,7 @@ enum rk3188_plls {
COMPOSITE_FRACMUX(0, "hsadc_frac", "hsadc_src", 0,
RK2928_CLKSEL_CON(23), 0,
RK2928_CLKGATE_CON(2), 7, GFLAGS,
- &common_hsadc_out_fracmux),
+ &common_hsadc_out_fracmux, RK3188_HSADC_FRAC_MAX_PRATE),
INVERTER(SCLK_HSADC, "sclk_hsadc", "sclk_hsadc_out",
RK2928_CLKSEL_CON(22), 7, IFLAGS),

@@ -377,7 +381,7 @@ enum rk3188_plls {
COMPOSITE_FRACMUX(0, "spdif_frac", "spdif_pre", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(9), 0,
RK2928_CLKGATE_CON(0), 14, GFLAGS,
- &common_spdif_fracmux),
+ &common_spdif_fracmux, RK3188_SPDIF_FRAC_MAX_PRATE),

/*
* Clock-Architecture Diagram 4
@@ -411,28 +415,28 @@ enum rk3188_plls {
COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_pre", 0,
RK2928_CLKSEL_CON(17), 0,
RK2928_CLKGATE_CON(1), 9, GFLAGS,
- &common_uart0_fracmux),
+ &common_uart0_fracmux, RK3188_UART_FRAC_MAX_PRATE),
COMPOSITE_NOMUX(0, "uart1_pre", "uart_src", 0,
RK2928_CLKSEL_CON(14), 0, 7, DFLAGS,
RK2928_CLKGATE_CON(1), 10, GFLAGS),
COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_pre", 0,
RK2928_CLKSEL_CON(18), 0,
RK2928_CLKGATE_CON(1), 11, GFLAGS,
- &common_uart1_fracmux),
+ &common_uart1_fracmux, RK3188_UART_FRAC_MAX_PRATE),
COMPOSITE_NOMUX(0, "uart2_pre", "uart_src", 0,
RK2928_CLKSEL_CON(15), 0, 7, DFLAGS,
RK2928_CLKGATE_CON(1), 12, GFLAGS),
COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_pre", 0,
RK2928_CLKSEL_CON(19), 0,
RK2928_CLKGATE_CON(1), 13, GFLAGS,
- &common_uart2_fracmux),
+ &common_uart2_fracmux, RK3188_UART_FRAC_MAX_PRATE),
COMPOSITE_NOMUX(0, "uart3_pre", "uart_src", 0,
RK2928_CLKSEL_CON(16), 0, 7, DFLAGS,
RK2928_CLKGATE_CON(1), 14, GFLAGS),
COMPOSITE_FRACMUX(0, "uart3_frac", "uart3_pre", 0,
RK2928_CLKSEL_CON(20), 0,
RK2928_CLKGATE_CON(1), 15, GFLAGS,
- &common_uart3_fracmux),
+ &common_uart3_fracmux, RK3188_UART_FRAC_MAX_PRATE),

GATE(SCLK_JTAG, "jtag", "ext_jtag", 0, RK2928_CLKGATE_CON(1), 3, GFLAGS),

@@ -618,21 +622,21 @@ enum rk3188_plls {
COMPOSITE_FRACMUX(0, "i2s0_frac", "i2s0_pre", 0,
RK2928_CLKSEL_CON(6), 0,
RK2928_CLKGATE_CON(0), 8, GFLAGS,
- &rk3066a_i2s0_fracmux),
+ &rk3066a_i2s0_fracmux, RK3188_I2S_FRAC_MAX_PRATE),
COMPOSITE_NOMUX(0, "i2s1_pre", "i2s_src", 0,
RK2928_CLKSEL_CON(3), 0, 7, DFLAGS,
RK2928_CLKGATE_CON(0), 9, GFLAGS),
COMPOSITE_FRACMUX(0, "i2s1_frac", "i2s1_pre", 0,
RK2928_CLKSEL_CON(7), 0,
RK2928_CLKGATE_CON(0), 10, GFLAGS,
- &rk3066a_i2s1_fracmux),
+ &rk3066a_i2s1_fracmux, RK3188_I2S_FRAC_MAX_PRATE),
COMPOSITE_NOMUX(0, "i2s2_pre", "i2s_src", 0,
RK2928_CLKSEL_CON(4), 0, 7, DFLAGS,
RK2928_CLKGATE_CON(0), 11, GFLAGS),
COMPOSITE_FRACMUX(0, "i2s2_frac", "i2s2_pre", 0,
RK2928_CLKSEL_CON(8), 0,
RK2928_CLKGATE_CON(0), 12, GFLAGS,
- &rk3066a_i2s2_fracmux),
+ &rk3066a_i2s2_fracmux, RK3188_I2S_FRAC_MAX_PRATE),

GATE(HCLK_I2S1, "hclk_i2s1", "hclk_cpu", 0, RK2928_CLKGATE_CON(7), 3, GFLAGS),
GATE(HCLK_I2S2, "hclk_i2s2", "hclk_cpu", 0, RK2928_CLKGATE_CON(7), 4, GFLAGS),
@@ -726,7 +730,7 @@ enum rk3188_plls {
COMPOSITE_FRACMUX(0, "i2s0_frac", "i2s0_pre", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(7), 0,
RK2928_CLKGATE_CON(0), 10, GFLAGS,
- &rk3188_i2s0_fracmux),
+ &rk3188_i2s0_fracmux, RK3188_I2S_FRAC_MAX_PRATE),

GATE(0, "hclk_imem0", "hclk_cpu", 0, RK2928_CLKGATE_CON(4), 14, GFLAGS),
GATE(0, "hclk_imem1", "hclk_cpu", 0, RK2928_CLKGATE_CON(4), 15, GFLAGS),
diff --git a/drivers/clk/rockchip/clk-rk3228.c b/drivers/clk/rockchip/clk-rk3228.c
index d17cfb7a3ff4..f5178c77de3a 100644
--- a/drivers/clk/rockchip/clk-rk3228.c
+++ b/drivers/clk/rockchip/clk-rk3228.c
@@ -15,6 +15,10 @@

#define RK3228_GRF_SOC_STATUS0 0x480

+#define RK3228_UART_FRAC_MAX_PRATE 600000000
+#define RK3228_SPDIF_FRAC_MAX_PRATE 600000000
+#define RK3228_I2S_FRAC_MAX_PRATE 600000000
+
enum rk3228_plls {
apll, dpll, cpll, gpll,
};
@@ -421,7 +425,7 @@ enum rk3228_plls {
COMPOSITE_FRACMUX(0, "i2s0_frac", "i2s0_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(8), 0,
RK2928_CLKGATE_CON(0), 4, GFLAGS,
- &rk3228_i2s0_fracmux),
+ &rk3228_i2s0_fracmux, RK3228_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S0, "sclk_i2s0", "i2s0_pre", CLK_SET_RATE_PARENT,
RK2928_CLKGATE_CON(0), 5, GFLAGS),

@@ -431,7 +435,7 @@ enum rk3228_plls {
COMPOSITE_FRACMUX(0, "i2s1_frac", "i2s1_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(7), 0,
RK2928_CLKGATE_CON(0), 11, GFLAGS,
- &rk3228_i2s1_fracmux),
+ &rk3228_i2s1_fracmux, RK3228_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S1, "sclk_i2s1", "i2s1_pre", CLK_SET_RATE_PARENT,
RK2928_CLKGATE_CON(0), 14, GFLAGS),
COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_out", mux_i2s_out_p, 0,
@@ -444,7 +448,7 @@ enum rk3228_plls {
COMPOSITE_FRACMUX(0, "i2s2_frac", "i2s2_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(30), 0,
RK2928_CLKGATE_CON(0), 8, GFLAGS,
- &rk3228_i2s2_fracmux),
+ &rk3228_i2s2_fracmux, RK3228_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S2, "sclk_i2s2", "i2s2_pre", CLK_SET_RATE_PARENT,
RK2928_CLKGATE_CON(0), 9, GFLAGS),

@@ -454,7 +458,7 @@ enum rk3228_plls {
COMPOSITE_FRACMUX(0, "spdif_frac", "sclk_spdif_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(20), 0,
RK2928_CLKGATE_CON(2), 12, GFLAGS,
- &rk3228_spdif_fracmux),
+ &rk3228_spdif_fracmux, RK3228_SPDIF_FRAC_MAX_PRATE),

GATE(0, "jtag", "ext_jtag", CLK_IGNORE_UNUSED,
RK2928_CLKGATE_CON(1), 3, GFLAGS),
@@ -496,15 +500,15 @@ enum rk3228_plls {
COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(17), 0,
RK2928_CLKGATE_CON(1), 9, GFLAGS,
- &rk3228_uart0_fracmux),
+ &rk3228_uart0_fracmux, RK3228_UART_FRAC_MAX_PRATE),
COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(18), 0,
RK2928_CLKGATE_CON(1), 11, GFLAGS,
- &rk3228_uart1_fracmux),
+ &rk3228_uart1_fracmux, RK3228_UART_FRAC_MAX_PRATE),
COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(19), 0,
RK2928_CLKGATE_CON(1), 13, GFLAGS,
- &rk3228_uart2_fracmux),
+ &rk3228_uart2_fracmux, RK3228_UART_FRAC_MAX_PRATE),

COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_2plls_p, 0,
RK2928_CLKSEL_CON(2), 14, 1, MFLAGS, 8, 5, DFLAGS,
diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c
index cc2a177bbdbf..5f2b6f125c79 100644
--- a/drivers/clk/rockchip/clk-rk3288.c
+++ b/drivers/clk/rockchip/clk-rk3288.c
@@ -14,6 +14,9 @@

#define RK3288_GRF_SOC_CON(x) (0x244 + x * 4)
#define RK3288_GRF_SOC_STATUS1 0x284
+#define RK3288_UART_FRAC_MAX_PRATE 600000000
+#define RK3288_I2S_FRAC_MAX_PRATE 600000000
+#define RK3288_SPDIF_FRAC_MAX_PRATE 600000000

enum rk3288_plls {
apll, dpll, cpll, gpll, npll,
@@ -357,7 +360,7 @@ enum rk3288_plls {
COMPOSITE_FRACMUX(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT,
RK3288_CLKSEL_CON(8), 0,
RK3288_CLKGATE_CON(4), 2, GFLAGS,
- &rk3288_i2s_fracmux),
+ &rk3288_i2s_fracmux, RK3288_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S0_OUT, "i2s0_clkout", mux_i2s_clkout_p, 0,
RK3288_CLKSEL_CON(4), 12, 1, MFLAGS,
RK3288_CLKGATE_CON(4), 0, GFLAGS),
@@ -372,7 +375,7 @@ enum rk3288_plls {
COMPOSITE_FRACMUX(0, "spdif_frac", "spdif_src", CLK_SET_RATE_PARENT,
RK3288_CLKSEL_CON(9), 0,
RK3288_CLKGATE_CON(4), 5, GFLAGS,
- &rk3288_spdif_fracmux),
+ &rk3288_spdif_fracmux, RK3288_SPDIF_FRAC_MAX_PRATE),
GATE(SCLK_SPDIF, "sclk_spdif", "spdif_mux", CLK_SET_RATE_PARENT,
RK3288_CLKGATE_CON(4), 6, GFLAGS),
COMPOSITE_NOMUX(0, "spdif_8ch_pre", "spdif_src", CLK_SET_RATE_PARENT,
@@ -381,7 +384,7 @@ enum rk3288_plls {
COMPOSITE_FRACMUX(0, "spdif_8ch_frac", "spdif_8ch_pre", CLK_SET_RATE_PARENT,
RK3288_CLKSEL_CON(41), 0,
RK3288_CLKGATE_CON(4), 8, GFLAGS,
- &rk3288_spdif_8ch_fracmux),
+ &rk3288_spdif_8ch_fracmux, RK3288_SPDIF_FRAC_MAX_PRATE),
GATE(SCLK_SPDIF8CH, "sclk_spdif_8ch", "spdif_8ch_mux", CLK_SET_RATE_PARENT,
RK3288_CLKGATE_CON(4), 9, GFLAGS),

@@ -584,7 +587,7 @@ enum rk3288_plls {
COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
RK3288_CLKSEL_CON(17), 0,
RK3288_CLKGATE_CON(1), 9, GFLAGS,
- &rk3288_uart0_fracmux),
+ &rk3288_uart0_fracmux, RK3288_UART_FRAC_MAX_PRATE),
MUX(0, "uart_src", mux_pll_src_cpll_gpll_p, 0,
RK3288_CLKSEL_CON(13), 15, 1, MFLAGS),
COMPOSITE_NOMUX(0, "uart1_src", "uart_src", 0,
@@ -593,28 +596,28 @@ enum rk3288_plls {
COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
RK3288_CLKSEL_CON(18), 0,
RK3288_CLKGATE_CON(1), 11, GFLAGS,
- &rk3288_uart1_fracmux),
+ &rk3288_uart1_fracmux, RK3288_UART_FRAC_MAX_PRATE),
COMPOSITE_NOMUX(0, "uart2_src", "uart_src", 0,
RK3288_CLKSEL_CON(15), 0, 7, DFLAGS,
RK3288_CLKGATE_CON(1), 12, GFLAGS),
COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
RK3288_CLKSEL_CON(19), 0,
RK3288_CLKGATE_CON(1), 13, GFLAGS,
- &rk3288_uart2_fracmux),
+ &rk3288_uart2_fracmux, RK3288_UART_FRAC_MAX_PRATE),
COMPOSITE_NOMUX(0, "uart3_src", "uart_src", 0,
RK3288_CLKSEL_CON(16), 0, 7, DFLAGS,
RK3288_CLKGATE_CON(1), 14, GFLAGS),
COMPOSITE_FRACMUX(0, "uart3_frac", "uart3_src", CLK_SET_RATE_PARENT,
RK3288_CLKSEL_CON(20), 0,
RK3288_CLKGATE_CON(1), 15, GFLAGS,
- &rk3288_uart3_fracmux),
+ &rk3288_uart3_fracmux, RK3288_UART_FRAC_MAX_PRATE),
COMPOSITE_NOMUX(0, "uart4_src", "uart_src", 0,
RK3288_CLKSEL_CON(3), 0, 7, DFLAGS,
RK3288_CLKGATE_CON(2), 12, GFLAGS),
COMPOSITE_FRACMUX(0, "uart4_frac", "uart4_src", CLK_SET_RATE_PARENT,
RK3288_CLKSEL_CON(7), 0,
RK3288_CLKGATE_CON(2), 13, GFLAGS,
- &rk3288_uart4_fracmux),
+ &rk3288_uart4_fracmux, RK3288_UART_FRAC_MAX_PRATE),

COMPOSITE(0, "mac_pll_src", mux_pll_src_npll_cpll_gpll_p, 0,
RK3288_CLKSEL_CON(21), 0, 2, MFLAGS, 8, 5, DFLAGS,
diff --git a/drivers/clk/rockchip/clk-rk3308.c b/drivers/clk/rockchip/clk-rk3308.c
index b0baf87a283e..f3942a9a38c6 100644
--- a/drivers/clk/rockchip/clk-rk3308.c
+++ b/drivers/clk/rockchip/clk-rk3308.c
@@ -13,6 +13,12 @@
#include "clk.h"

#define RK3308_GRF_SOC_STATUS0 0x380
+#define RK3308_VOP_FRAC_MAX_PRATE 270000000
+#define RK3308B_VOP_FRAC_MAX_PRATE 800000000
+#define RK3308_UART_FRAC_MAX_PRATE 800000000
+#define RK3308_PDM_FRAC_MAX_PRATE 800000000
+#define RK3308_SPDIF_FRAC_MAX_PRATE 800000000
+#define RK3308_I2S_FRAC_MAX_PRATE 800000000

enum rk3308_plls {
apll, dpll, vpll0, vpll1,
@@ -333,7 +339,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_uart0_frac", "clk_uart0_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(12), 0,
RK3308_CLKGATE_CON(1), 11, GFLAGS,
- &rk3308_uart0_fracmux),
+ &rk3308_uart0_fracmux, RK3308_UART_FRAC_MAX_PRATE),
GATE(SCLK_UART0, "clk_uart0", "clk_uart0_mux", 0,
RK3308_CLKGATE_CON(1), 12, GFLAGS),

@@ -343,7 +349,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_uart1_frac", "clk_uart1_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(15), 0,
RK3308_CLKGATE_CON(1), 15, GFLAGS,
- &rk3308_uart1_fracmux),
+ &rk3308_uart1_fracmux, RK3308_UART_FRAC_MAX_PRATE),
GATE(SCLK_UART1, "clk_uart1", "clk_uart1_mux", 0,
RK3308_CLKGATE_CON(2), 0, GFLAGS),

@@ -353,7 +359,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_uart2_frac", "clk_uart2_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(18), 0,
RK3308_CLKGATE_CON(2), 3, GFLAGS,
- &rk3308_uart2_fracmux),
+ &rk3308_uart2_fracmux, RK3308_UART_FRAC_MAX_PRATE),
GATE(SCLK_UART2, "clk_uart2", "clk_uart2_mux", CLK_SET_RATE_PARENT,
RK3308_CLKGATE_CON(2), 4, GFLAGS),

@@ -363,7 +369,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_uart3_frac", "clk_uart3_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(21), 0,
RK3308_CLKGATE_CON(2), 7, GFLAGS,
- &rk3308_uart3_fracmux),
+ &rk3308_uart3_fracmux, RK3308_UART_FRAC_MAX_PRATE),
GATE(SCLK_UART3, "clk_uart3", "clk_uart3_mux", 0,
RK3308_CLKGATE_CON(2), 8, GFLAGS),

@@ -373,7 +379,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_uart4_frac", "clk_uart4_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(24), 0,
RK3308_CLKGATE_CON(2), 11, GFLAGS,
- &rk3308_uart4_fracmux),
+ &rk3308_uart4_fracmux, RK3308_UART_FRAC_MAX_PRATE),
GATE(SCLK_UART4, "clk_uart4", "clk_uart4_mux", 0,
RK3308_CLKGATE_CON(2), 12, GFLAGS),

@@ -453,7 +459,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "dclk_vop_frac", "dclk_vop_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(9), 0,
RK3308_CLKGATE_CON(1), 7, GFLAGS,
- &rk3308_dclk_vop_fracmux),
+ &rk3308_dclk_vop_fracmux, RK3308B_VOP_FRAC_MAX_PRATE),
GATE(DCLK_VOP, "dclk_vop", "dclk_vop_mux", 0,
RK3308_CLKGATE_CON(1), 8, GFLAGS),

@@ -584,7 +590,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_rtc32k_frac", "xin24m", CLK_IGNORE_UNUSED,
RK3308_CLKSEL_CON(3), 0,
RK3308_CLKGATE_CON(4), 3, GFLAGS,
- &rk3308_rtc32k_fracmux),
+ &rk3308_rtc32k_fracmux, 0),
MUX(0, "clk_rtc32k_div_src", mux_vpll0_vpll1_p, 0,
RK3308_CLKSEL_CON(2), 10, 1, MFLAGS),
COMPOSITE_NOMUX(0, "clk_rtc32k_div", "clk_rtc32k_div_src", CLK_IGNORE_UNUSED | CLK_SET_RATE_PARENT,
@@ -634,7 +640,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_pdm_frac", "clk_pdm_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(47), 0,
RK3308_CLKGATE_CON(10), 4, GFLAGS,
- &rk3308_pdm_fracmux),
+ &rk3308_pdm_fracmux, RK3308_PDM_FRAC_MAX_PRATE),
GATE(SCLK_PDM, "clk_pdm", "clk_pdm_mux", 0,
RK3308_CLKGATE_CON(10), 5, GFLAGS),

@@ -644,7 +650,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s0_8ch_tx_frac", "clk_i2s0_8ch_tx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(53), 0,
RK3308_CLKGATE_CON(10), 13, GFLAGS,
- &rk3308_i2s0_8ch_tx_fracmux),
+ &rk3308_i2s0_8ch_tx_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S0_8CH_TX, "clk_i2s0_8ch_tx", mux_i2s0_8ch_tx_rx_p, CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(52), 12, 1, MFLAGS,
RK3308_CLKGATE_CON(10), 14, GFLAGS),
@@ -658,7 +664,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s0_8ch_rx_frac", "clk_i2s0_8ch_rx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(55), 0,
RK3308_CLKGATE_CON(11), 1, GFLAGS,
- &rk3308_i2s0_8ch_rx_fracmux),
+ &rk3308_i2s0_8ch_rx_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S0_8CH_RX, "clk_i2s0_8ch_rx", mux_i2s0_8ch_rx_tx_p, CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(54), 12, 1, MFLAGS,
RK3308_CLKGATE_CON(11), 2, GFLAGS),
@@ -671,7 +677,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s1_8ch_tx_frac", "clk_i2s1_8ch_tx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(57), 0,
RK3308_CLKGATE_CON(11), 5, GFLAGS,
- &rk3308_i2s1_8ch_tx_fracmux),
+ &rk3308_i2s1_8ch_tx_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S1_8CH_TX, "clk_i2s1_8ch_tx", mux_i2s1_8ch_tx_rx_p, CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(56), 12, 1, MFLAGS,
RK3308_CLKGATE_CON(11), 6, GFLAGS),
@@ -685,7 +691,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s1_8ch_rx_frac", "clk_i2s1_8ch_rx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(59), 0,
RK3308_CLKGATE_CON(11), 9, GFLAGS,
- &rk3308_i2s1_8ch_rx_fracmux),
+ &rk3308_i2s1_8ch_rx_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S1_8CH_RX, "clk_i2s1_8ch_rx", mux_i2s1_8ch_rx_tx_p, CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(58), 12, 1, MFLAGS,
RK3308_CLKGATE_CON(11), 10, GFLAGS),
@@ -698,7 +704,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s2_8ch_tx_frac", "clk_i2s2_8ch_tx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(61), 0,
RK3308_CLKGATE_CON(11), 13, GFLAGS,
- &rk3308_i2s2_8ch_tx_fracmux),
+ &rk3308_i2s2_8ch_tx_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S2_8CH_TX, "clk_i2s2_8ch_tx", mux_i2s2_8ch_tx_rx_p, CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(60), 12, 1, MFLAGS,
RK3308_CLKGATE_CON(11), 14, GFLAGS),
@@ -712,7 +718,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s2_8ch_rx_frac", "clk_i2s2_8ch_rx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(63), 0,
RK3308_CLKGATE_CON(12), 1, GFLAGS,
- &rk3308_i2s2_8ch_rx_fracmux),
+ &rk3308_i2s2_8ch_rx_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S2_8CH_RX, "clk_i2s2_8ch_rx", mux_i2s2_8ch_rx_tx_p, CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(62), 12, 1, MFLAGS,
RK3308_CLKGATE_CON(12), 2, GFLAGS),
@@ -725,7 +731,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s3_8ch_tx_frac", "clk_i2s3_8ch_tx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(65), 0,
RK3308_CLKGATE_CON(12), 5, GFLAGS,
- &rk3308_i2s3_8ch_tx_fracmux),
+ &rk3308_i2s3_8ch_tx_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S3_8CH_TX, "clk_i2s3_8ch_tx", mux_i2s3_8ch_tx_rx_p, CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(64), 12, 1, MFLAGS,
RK3308_CLKGATE_CON(12), 6, GFLAGS),
@@ -739,7 +745,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s3_8ch_rx_frac", "clk_i2s3_8ch_rx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(67), 0,
RK3308_CLKGATE_CON(12), 9, GFLAGS,
- &rk3308_i2s3_8ch_rx_fracmux),
+ &rk3308_i2s3_8ch_rx_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S3_8CH_RX, "clk_i2s3_8ch_rx", mux_i2s3_8ch_rx_tx_p, CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(66), 12, 1, MFLAGS,
RK3308_CLKGATE_CON(12), 10, GFLAGS),
@@ -752,7 +758,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s0_2ch_frac", "clk_i2s0_2ch_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(69), 0,
RK3308_CLKGATE_CON(12), 13, GFLAGS,
- &rk3308_i2s0_2ch_fracmux),
+ &rk3308_i2s0_2ch_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S0_2CH, "clk_i2s0_2ch", "clk_i2s0_2ch_mux", 0,
RK3308_CLKGATE_CON(12), 14, GFLAGS),
COMPOSITE_NODIV(SCLK_I2S0_2CH_OUT, "clk_i2s0_2ch_out", mux_i2s0_2ch_out_p, CLK_SET_RATE_PARENT,
@@ -765,7 +771,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_i2s1_2ch_frac", "clk_i2s1_2ch_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(71), 0,
RK3308_CLKGATE_CON(13), 1, GFLAGS,
- &rk3308_i2s1_2ch_fracmux),
+ &rk3308_i2s1_2ch_fracmux, RK3308_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S1_2CH, "clk_i2s1_2ch", "clk_i2s1_2ch_mux", 0,
RK3308_CLKGATE_CON(13), 2, GFLAGS),
COMPOSITE_NODIV(SCLK_I2S1_2CH_OUT, "clk_i2s1_2ch_out", mux_i2s1_2ch_out_p, CLK_SET_RATE_PARENT,
@@ -783,7 +789,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_spdif_tx_frac", "clk_spdif_tx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(49), 0,
RK3308_CLKGATE_CON(10), 7, GFLAGS,
- &rk3308_spdif_tx_fracmux),
+ &rk3308_spdif_tx_fracmux, RK3308_SPDIF_FRAC_MAX_PRATE),
GATE(SCLK_SPDIF_TX, "clk_spdif_tx", "clk_spdif_tx_mux", 0,
RK3308_CLKGATE_CON(10), 8, GFLAGS),

@@ -798,7 +804,7 @@ enum rk3308_plls {
COMPOSITE_FRACMUX(0, "clk_spdif_rx_frac", "clk_spdif_rx_src", CLK_SET_RATE_PARENT,
RK3308_CLKSEL_CON(51), 0,
RK3308_CLKGATE_CON(10), 10, GFLAGS,
- &rk3308_spdif_rx_fracmux),
+ &rk3308_spdif_rx_fracmux, RK3308_SPDIF_FRAC_MAX_PRATE),
GATE(SCLK_SPDIF_RX, "clk_spdif_rx", "clk_spdif_rx_mux", 0,
RK3308_CLKGATE_CON(10), 11, GFLAGS),

diff --git a/drivers/clk/rockchip/clk-rk3328.c b/drivers/clk/rockchip/clk-rk3328.c
index c186a1985bf4..12b1f645cacd 100644
--- a/drivers/clk/rockchip/clk-rk3328.c
+++ b/drivers/clk/rockchip/clk-rk3328.c
@@ -16,6 +16,9 @@
#define RK3328_GRF_SOC_STATUS0 0x480
#define RK3328_GRF_MAC_CON1 0x904
#define RK3328_GRF_MAC_CON2 0x908
+#define RK3328_I2S_FRAC_MAX_PRATE 600000000
+#define RK3328_UART_FRAC_MAX_PRATE 600000000
+#define RK3328_SPDIF_FRAC_MAX_PRATE 600000000

enum rk3328_plls {
apll, dpll, cpll, gpll, npll,
@@ -372,7 +375,7 @@ enum rk3328_plls {
COMPOSITE_FRACMUX(0, "clk_i2s0_frac", "clk_i2s0_div", CLK_SET_RATE_PARENT,
RK3328_CLKSEL_CON(7), 0,
RK3328_CLKGATE_CON(1), 2, GFLAGS,
- &rk3328_i2s0_fracmux),
+ &rk3328_i2s0_fracmux, RK3328_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S0, "clk_i2s0", "i2s0_pre", CLK_SET_RATE_PARENT,
RK3328_CLKGATE_CON(1), 3, GFLAGS),

@@ -382,7 +385,7 @@ enum rk3328_plls {
COMPOSITE_FRACMUX(0, "clk_i2s1_frac", "clk_i2s1_div", CLK_SET_RATE_PARENT,
RK3328_CLKSEL_CON(9), 0,
RK3328_CLKGATE_CON(1), 5, GFLAGS,
- &rk3328_i2s1_fracmux),
+ &rk3328_i2s1_fracmux, RK3328_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S1, "clk_i2s1", "i2s1_pre", CLK_SET_RATE_PARENT,
RK3328_CLKGATE_CON(1), 6, GFLAGS),
COMPOSITE_NODIV(SCLK_I2S1_OUT, "i2s1_out", mux_i2s1out_p, 0,
@@ -395,7 +398,7 @@ enum rk3328_plls {
COMPOSITE_FRACMUX(0, "clk_i2s2_frac", "clk_i2s2_div", CLK_SET_RATE_PARENT,
RK3328_CLKSEL_CON(11), 0,
RK3328_CLKGATE_CON(1), 9, GFLAGS,
- &rk3328_i2s2_fracmux),
+ &rk3328_i2s2_fracmux, RK3328_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S2, "clk_i2s2", "i2s2_pre", CLK_SET_RATE_PARENT,
RK3328_CLKGATE_CON(1), 10, GFLAGS),
COMPOSITE_NODIV(SCLK_I2S2_OUT, "i2s2_out", mux_i2s2out_p, 0,
@@ -408,7 +411,7 @@ enum rk3328_plls {
COMPOSITE_FRACMUX(0, "clk_spdif_frac", "clk_spdif_div", CLK_SET_RATE_PARENT,
RK3328_CLKSEL_CON(13), 0,
RK3328_CLKGATE_CON(1), 13, GFLAGS,
- &rk3328_spdif_fracmux),
+ &rk3328_spdif_fracmux, RK3328_SPDIF_FRAC_MAX_PRATE),

/* PD_UART */
COMPOSITE(0, "clk_uart0_div", mux_2plls_u480m_p, 0,
@@ -423,15 +426,15 @@ enum rk3328_plls {
COMPOSITE_FRACMUX(0, "clk_uart0_frac", "clk_uart0_div", CLK_SET_RATE_PARENT,
RK3328_CLKSEL_CON(15), 0,
RK3328_CLKGATE_CON(1), 15, GFLAGS,
- &rk3328_uart0_fracmux),
+ &rk3328_uart0_fracmux, RK3328_UART_FRAC_MAX_PRATE),
COMPOSITE_FRACMUX(0, "clk_uart1_frac", "clk_uart1_div", CLK_SET_RATE_PARENT,
RK3328_CLKSEL_CON(17), 0,
RK3328_CLKGATE_CON(2), 1, GFLAGS,
- &rk3328_uart1_fracmux),
+ &rk3328_uart1_fracmux, RK3328_UART_FRAC_MAX_PRATE),
COMPOSITE_FRACMUX(0, "clk_uart2_frac", "clk_uart2_div", CLK_SET_RATE_PARENT,
RK3328_CLKSEL_CON(19), 0,
RK3328_CLKGATE_CON(2), 3, GFLAGS,
- &rk3328_uart2_fracmux),
+ &rk3328_uart2_fracmux, RK3328_UART_FRAC_MAX_PRATE),

/*
* Clock-Architecture Diagram 4
diff --git a/drivers/clk/rockchip/clk-rk3368.c b/drivers/clk/rockchip/clk-rk3368.c
index 55443349439b..d20e51dabb63 100644
--- a/drivers/clk/rockchip/clk-rk3368.c
+++ b/drivers/clk/rockchip/clk-rk3368.c
@@ -12,6 +12,9 @@
#include "clk.h"

#define RK3368_GRF_SOC_STATUS0 0x480
+#define RK3368_I2S_FRAC_MAX_PRATE 600000000
+#define RK3368_UART_FRAC_MAX_PRATE 600000000
+#define RK3368_SPDIF_FRAC_MAX_PRATE 600000000

enum rk3368_plls {
apllb, aplll, dpll, cpll, gpll, npll,
@@ -368,7 +371,7 @@ enum rk3368_plls {
COMPOSITE_FRACMUX(0, "i2s_8ch_frac", "i2s_8ch_src", CLK_SET_RATE_PARENT,
RK3368_CLKSEL_CON(28), 0,
RK3368_CLKGATE_CON(6), 2, GFLAGS,
- &rk3368_i2s_8ch_fracmux),
+ &rk3368_i2s_8ch_fracmux, RK3368_I2S_FRAC_MAX_PRATE),
COMPOSITE_NODIV(SCLK_I2S_8CH_OUT, "i2s_8ch_clkout", mux_i2s_8ch_clkout_p, 0,
RK3368_CLKSEL_CON(27), 15, 1, MFLAGS,
RK3368_CLKGATE_CON(6), 0, GFLAGS),
@@ -380,7 +383,7 @@ enum rk3368_plls {
COMPOSITE_FRACMUX(0, "spdif_8ch_frac", "spdif_8ch_src", CLK_SET_RATE_PARENT,
RK3368_CLKSEL_CON(32), 0,
RK3368_CLKGATE_CON(6), 5, GFLAGS,
- &rk3368_spdif_8ch_fracmux),
+ &rk3368_spdif_8ch_fracmux, RK3368_SPDIF_FRAC_MAX_PRATE),
GATE(SCLK_SPDIF_8CH, "sclk_spdif_8ch", "spdif_8ch_pre", CLK_SET_RATE_PARENT,
RK3368_CLKGATE_CON(6), 6, GFLAGS),
COMPOSITE(0, "i2s_2ch_src", mux_pll_src_cpll_gpll_p, 0,
@@ -389,7 +392,7 @@ enum rk3368_plls {
COMPOSITE_FRACMUX(0, "i2s_2ch_frac", "i2s_2ch_src", CLK_SET_RATE_PARENT,
RK3368_CLKSEL_CON(54), 0,
RK3368_CLKGATE_CON(5), 14, GFLAGS,
- &rk3368_i2s_2ch_fracmux),
+ &rk3368_i2s_2ch_fracmux, RK3368_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S_2CH, "sclk_i2s_2ch", "i2s_2ch_pre", CLK_SET_RATE_PARENT,
RK3368_CLKGATE_CON(5), 15, GFLAGS),

@@ -590,7 +593,7 @@ enum rk3368_plls {
COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
RK3368_CLKSEL_CON(34), 0,
RK3368_CLKGATE_CON(2), 1, GFLAGS,
- &rk3368_uart0_fracmux),
+ &rk3368_uart0_fracmux, RK3368_UART_FRAC_MAX_PRATE),

COMPOSITE_NOMUX(0, "uart1_src", "uart_src", 0,
RK3368_CLKSEL_CON(35), 0, 7, DFLAGS,
@@ -598,7 +601,7 @@ enum rk3368_plls {
COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
RK3368_CLKSEL_CON(36), 0,
RK3368_CLKGATE_CON(2), 3, GFLAGS,
- &rk3368_uart1_fracmux),
+ &rk3368_uart1_fracmux, RK3368_UART_FRAC_MAX_PRATE),

COMPOSITE_NOMUX(0, "uart3_src", "uart_src", 0,
RK3368_CLKSEL_CON(39), 0, 7, DFLAGS,
@@ -606,7 +609,7 @@ enum rk3368_plls {
COMPOSITE_FRACMUX(0, "uart3_frac", "uart3_src", CLK_SET_RATE_PARENT,
RK3368_CLKSEL_CON(40), 0,
RK3368_CLKGATE_CON(2), 7, GFLAGS,
- &rk3368_uart3_fracmux),
+ &rk3368_uart3_fracmux, RK3368_UART_FRAC_MAX_PRATE),

COMPOSITE_NOMUX(0, "uart4_src", "uart_src", 0,
RK3368_CLKSEL_CON(41), 0, 7, DFLAGS,
@@ -614,7 +617,7 @@ enum rk3368_plls {
COMPOSITE_FRACMUX(0, "uart4_frac", "uart4_src", CLK_SET_RATE_PARENT,
RK3368_CLKSEL_CON(42), 0,
RK3368_CLKGATE_CON(2), 9, GFLAGS,
- &rk3368_uart4_fracmux),
+ &rk3368_uart4_fracmux, RK3368_UART_FRAC_MAX_PRATE),

COMPOSITE(0, "mac_pll_src", mux_pll_src_npll_cpll_gpll_p, 0,
RK3368_CLKSEL_CON(43), 6, 2, MFLAGS, 0, 5, DFLAGS,
diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c
index ce1d2446f142..bda5d50c5319 100644
--- a/drivers/clk/rockchip/clk-rk3399.c
+++ b/drivers/clk/rockchip/clk-rk3399.c
@@ -13,6 +13,12 @@
#include <dt-bindings/clock/rk3399-cru.h>
#include "clk.h"

+#define RK3399_I2S_FRAC_MAX_PRATE 800000000
+#define RK3399_UART_FRAC_MAX_PRATE 800000000
+#define RK3399_SPDIF_FRAC_MAX_PRATE 600000000
+#define RK3399_VOP_FRAC_MAX_PRATE 600000000
+#define RK3399_WIFI_FRAC_MAX_PRATE 600000000
+
enum rk3399_plls {
lpll, bpll, dpll, cpll, gpll, npll, vpll,
};
@@ -582,7 +588,7 @@ enum rk3399_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_spdif_frac", "clk_spdif_div", 0,
RK3399_CLKSEL_CON(99), 0,
RK3399_CLKGATE_CON(8), 14, GFLAGS,
- &rk3399_spdif_fracmux),
+ &rk3399_spdif_fracmux, RK3399_SPDIF_FRAC_MAX_PRATE),
GATE(SCLK_SPDIF_8CH, "clk_spdif", "clk_spdif_mux", CLK_SET_RATE_PARENT,
RK3399_CLKGATE_CON(8), 15, GFLAGS),

@@ -596,7 +602,7 @@ enum rk3399_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_i2s0_frac", "clk_i2s0_div", 0,
RK3399_CLKSEL_CON(96), 0,
RK3399_CLKGATE_CON(8), 4, GFLAGS,
- &rk3399_i2s0_fracmux),
+ &rk3399_i2s0_fracmux, RK3399_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S0_8CH, "clk_i2s0", "clk_i2s0_mux", CLK_SET_RATE_PARENT,
RK3399_CLKGATE_CON(8), 5, GFLAGS),

@@ -606,7 +612,7 @@ enum rk3399_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_i2s1_frac", "clk_i2s1_div", 0,
RK3399_CLKSEL_CON(97), 0,
RK3399_CLKGATE_CON(8), 7, GFLAGS,
- &rk3399_i2s1_fracmux),
+ &rk3399_i2s1_fracmux, RK3399_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S1_8CH, "clk_i2s1", "clk_i2s1_mux", CLK_SET_RATE_PARENT,
RK3399_CLKGATE_CON(8), 8, GFLAGS),

@@ -616,7 +622,7 @@ enum rk3399_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_i2s2_frac", "clk_i2s2_div", 0,
RK3399_CLKSEL_CON(98), 0,
RK3399_CLKGATE_CON(8), 10, GFLAGS,
- &rk3399_i2s2_fracmux),
+ &rk3399_i2s2_fracmux, RK3399_I2S_FRAC_MAX_PRATE),
GATE(SCLK_I2S2_8CH, "clk_i2s2", "clk_i2s2_mux", CLK_SET_RATE_PARENT,
RK3399_CLKGATE_CON(8), 11, GFLAGS),

@@ -635,7 +641,7 @@ enum rk3399_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart0_frac", "clk_uart0_div", 0,
RK3399_CLKSEL_CON(100), 0,
RK3399_CLKGATE_CON(9), 1, GFLAGS,
- &rk3399_uart0_fracmux),
+ &rk3399_uart0_fracmux, RK3399_UART_FRAC_MAX_PRATE),

MUX(0, "clk_uart_src", mux_pll_src_cpll_gpll_p, 0,
RK3399_CLKSEL_CON(33), 15, 1, MFLAGS),
@@ -645,7 +651,7 @@ enum rk3399_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart1_frac", "clk_uart1_div", 0,
RK3399_CLKSEL_CON(101), 0,
RK3399_CLKGATE_CON(9), 3, GFLAGS,
- &rk3399_uart1_fracmux),
+ &rk3399_uart1_fracmux, RK3399_UART_FRAC_MAX_PRATE),

COMPOSITE_NOMUX(0, "clk_uart2_div", "clk_uart_src", 0,
RK3399_CLKSEL_CON(35), 0, 7, DFLAGS,
@@ -653,7 +659,7 @@ enum rk3399_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart2_frac", "clk_uart2_div", 0,
RK3399_CLKSEL_CON(102), 0,
RK3399_CLKGATE_CON(9), 5, GFLAGS,
- &rk3399_uart2_fracmux),
+ &rk3399_uart2_fracmux, RK3399_UART_FRAC_MAX_PRATE),

COMPOSITE_NOMUX(0, "clk_uart3_div", "clk_uart_src", 0,
RK3399_CLKSEL_CON(36), 0, 7, DFLAGS,
@@ -661,7 +667,7 @@ enum rk3399_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart3_frac", "clk_uart3_div", 0,
RK3399_CLKSEL_CON(103), 0,
RK3399_CLKGATE_CON(9), 7, GFLAGS,
- &rk3399_uart3_fracmux),
+ &rk3399_uart3_fracmux, RK3399_UART_FRAC_MAX_PRATE),

COMPOSITE(PCLK_DDR, "pclk_ddr", mux_pll_src_cpll_gpll_p, CLK_IGNORE_UNUSED,
RK3399_CLKSEL_CON(6), 15, 1, MFLAGS, 8, 5, DFLAGS,
@@ -1164,7 +1170,7 @@ enum rk3399_pmu_plls {

COMPOSITE_FRACMUX_NOGATE(DCLK_VOP0_FRAC, "dclk_vop0_frac", "dclk_vop0_div", 0,
RK3399_CLKSEL_CON(106), 0,
- &rk3399_dclk_vop0_fracmux),
+ &rk3399_dclk_vop0_fracmux, RK3399_VOP_FRAC_MAX_PRATE),

COMPOSITE(SCLK_VOP0_PWM, "clk_vop0_pwm", mux_pll_src_vpll_cpll_gpll_24m_p, 0,
RK3399_CLKSEL_CON(51), 6, 2, MFLAGS, 0, 5, DFLAGS,
@@ -1194,7 +1200,7 @@ enum rk3399_pmu_plls {

COMPOSITE_FRACMUX_NOGATE(DCLK_VOP1_FRAC, "dclk_vop1_frac", "dclk_vop1_div", 0,
RK3399_CLKSEL_CON(107), 0,
- &rk3399_dclk_vop1_fracmux),
+ &rk3399_dclk_vop1_fracmux, RK3399_VOP_FRAC_MAX_PRATE),

COMPOSITE(SCLK_VOP1_PWM, "clk_vop1_pwm", mux_pll_src_vpll_cpll_gpll_24m_p, CLK_IGNORE_UNUSED,
RK3399_CLKSEL_CON(52), 6, 2, MFLAGS, 0, 5, DFLAGS,
@@ -1311,7 +1317,7 @@ enum rk3399_pmu_plls {
RK3399_CLKSEL_CON(58), 7, 1, MFLAGS),
COMPOSITE_FRAC(0, "clk_test_frac", "clk_test_pre", 0,
RK3399_CLKSEL_CON(105), 0,
- RK3399_CLKGATE_CON(13), 9, GFLAGS),
+ RK3399_CLKGATE_CON(13), 9, GFLAGS, 0),

DIV(0, "clk_test_24m", "xin24m", 0,
RK3399_CLKSEL_CON(57), 6, 10, DFLAGS),
@@ -1416,7 +1422,7 @@ enum rk3399_pmu_plls {

COMPOSITE_FRACMUX_NOGATE(0, "clk_wifi_frac", "clk_wifi_div", 0,
RK3399_PMU_CLKSEL_CON(7), 0,
- &rk3399_pmuclk_wifi_fracmux),
+ &rk3399_pmuclk_wifi_fracmux, RK3399_WIFI_FRAC_MAX_PRATE),

MUX(0, "clk_timer_src_pmu", mux_pll_p, CLK_IGNORE_UNUSED,
RK3399_PMU_CLKSEL_CON(1), 15, 1, MFLAGS),
@@ -1445,7 +1451,7 @@ enum rk3399_pmu_plls {
COMPOSITE_FRACMUX(0, "clk_uart4_frac", "clk_uart4_div", 0,
RK3399_PMU_CLKSEL_CON(6), 0,
RK3399_PMU_CLKGATE_CON(0), 6, GFLAGS,
- &rk3399_uart4_pmu_fracmux),
+ &rk3399_uart4_pmu_fracmux, RK3399_UART_FRAC_MAX_PRATE),

DIV(PCLK_SRC_PMU, "pclk_pmu_src", "ppll", CLK_IGNORE_UNUSED,
RK3399_PMU_CLKSEL_CON(0), 0, 5, DFLAGS),
diff --git a/drivers/clk/rockchip/clk-rv1108.c b/drivers/clk/rockchip/clk-rv1108.c
index 5947d3192866..04b7f1161942 100644
--- a/drivers/clk/rockchip/clk-rv1108.c
+++ b/drivers/clk/rockchip/clk-rv1108.c
@@ -14,6 +14,8 @@
#include "clk.h"

#define RV1108_GRF_SOC_STATUS0 0x480
+#define RV1108_I2S_FRAC_MAX_RATE 600000000
+#define RV1108_UART_FRAC_MAX_RATE 600000000

enum rv1108_plls {
apll, dpll, gpll,
@@ -503,7 +505,7 @@ enum rv1108_plls {
COMPOSITE_FRACMUX(0, "i2s0_frac", "i2s0_src", CLK_SET_RATE_PARENT,
RV1108_CLKSEL_CON(8), 0,
RV1108_CLKGATE_CON(2), 1, GFLAGS,
- &rv1108_i2s0_fracmux),
+ &rv1108_i2s0_fracmux, RV1108_I2S_FRAC_MAX_RATE),
GATE(SCLK_I2S0, "sclk_i2s0", "i2s0_pre", CLK_SET_RATE_PARENT,
RV1108_CLKGATE_CON(2), 2, GFLAGS),
COMPOSITE_NODIV(0, "i2s_out", mux_i2s_out_p, 0,
@@ -516,7 +518,7 @@ enum rv1108_plls {
COMPOSITE_FRACMUX(0, "i2s1_frac", "i2s1_src", CLK_SET_RATE_PARENT,
RK2928_CLKSEL_CON(9), 0,
RK2928_CLKGATE_CON(2), 5, GFLAGS,
- &rv1108_i2s1_fracmux),
+ &rv1108_i2s1_fracmux, RV1108_I2S_FRAC_MAX_RATE),
GATE(SCLK_I2S1, "sclk_i2s1", "i2s1_pre", CLK_SET_RATE_PARENT,
RV1108_CLKGATE_CON(2), 6, GFLAGS),

@@ -526,7 +528,7 @@ enum rv1108_plls {
COMPOSITE_FRACMUX(0, "i2s2_frac", "i2s2_src", CLK_SET_RATE_PARENT,
RV1108_CLKSEL_CON(10), 0,
RV1108_CLKGATE_CON(2), 9, GFLAGS,
- &rv1108_i2s2_fracmux),
+ &rv1108_i2s2_fracmux, RV1108_I2S_FRAC_MAX_RATE),
GATE(SCLK_I2S2, "sclk_i2s2", "i2s2_pre", CLK_SET_RATE_PARENT,
RV1108_CLKGATE_CON(2), 10, GFLAGS),

@@ -592,15 +594,15 @@ enum rv1108_plls {
COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
RV1108_CLKSEL_CON(16), 0,
RV1108_CLKGATE_CON(3), 2, GFLAGS,
- &rv1108_uart0_fracmux),
+ &rv1108_uart0_fracmux, RV1108_UART_FRAC_MAX_RATE),
COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
RV1108_CLKSEL_CON(17), 0,
RV1108_CLKGATE_CON(3), 4, GFLAGS,
- &rv1108_uart1_fracmux),
+ &rv1108_uart1_fracmux, RV1108_UART_FRAC_MAX_RATE),
COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
RV1108_CLKSEL_CON(18), 0,
RV1108_CLKGATE_CON(3), 6, GFLAGS,
- &rv1108_uart2_fracmux),
+ &rv1108_uart2_fracmux, RV1108_UART_FRAC_MAX_RATE),
GATE(PCLK_UART0, "pclk_uart0", "pclk_bus_pre", 0,
RV1108_CLKGATE_CON(13), 10, GFLAGS),
GATE(PCLK_UART1, "pclk_uart1", "pclk_bus_pre", 0,
diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c
index 546e810c3560..fac5a4a3f5c3 100644
--- a/drivers/clk/rockchip/clk.c
+++ b/drivers/clk/rockchip/clk.c
@@ -184,12 +184,26 @@ static void rockchip_fractional_approximation(struct clk_hw *hw,
unsigned long p_rate, p_parent_rate;
struct clk_hw *p_parent;
unsigned long scale;
+ u32 div;

p_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
- if ((rate * 20 > p_rate) && (p_rate % rate != 0)) {
+ if (((rate * 20 > p_rate) && (p_rate % rate != 0)) ||
+ (fd->max_prate && fd->max_prate < p_rate)) {
p_parent = clk_hw_get_parent(clk_hw_get_parent(hw));
p_parent_rate = clk_hw_get_rate(p_parent);
*parent_rate = p_parent_rate;
+ if (fd->max_prate && p_parent_rate > fd->max_prate) {
+ div = DIV_ROUND_UP(p_parent_rate, fd->max_prate);
+ *parent_rate = p_parent_rate / div;
+ }
+
+ if (*parent_rate < rate * 20) {
+ pr_err("%s parent_rate(%ld) is low than rate(%ld)*20, fractional div is not allowed\n",
+ clk_hw_get_name(hw), *parent_rate, rate);
+ *m = 0;
+ *n = 1;
+ return;
+ }
}

/*
@@ -212,7 +226,7 @@ static struct clk *rockchip_clk_register_frac_branch(
void __iomem *base, int muxdiv_offset, u8 div_flags,
int gate_offset, u8 gate_shift, u8 gate_flags,
unsigned long flags, struct rockchip_clk_branch *child,
- spinlock_t *lock)
+ unsigned long max_prate, spinlock_t *lock)
{
struct rockchip_clk_frac *frac;
struct clk *clk;
@@ -253,6 +267,7 @@ static struct clk *rockchip_clk_register_frac_branch(
div->nmask = GENMASK(div->nwidth - 1, 0) << div->nshift;
div->lock = lock;
div->approximation = rockchip_fractional_approximation;
+ div->max_prate = max_prate;
div_ops = &clk_fractional_divider_ops;

clk = clk_register_composite(NULL, name, parent_names, num_parents,
@@ -485,7 +500,7 @@ void __init rockchip_clk_register_branches(
list->div_flags,
list->gate_offset, list->gate_shift,
list->gate_flags, flags, list->child,
- &ctx->lock);
+ list->max_prate, &ctx->lock);
break;
case branch_half_divider:
clk = rockchip_clk_register_halfdiv(list->name,
diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
index 2271a84124b0..0d401ce09a54 100644
--- a/drivers/clk/rockchip/clk.h
+++ b/drivers/clk/rockchip/clk.h
@@ -420,6 +420,7 @@ struct rockchip_clk_branch {
u8 gate_shift;
u8 gate_flags;
struct rockchip_clk_branch *child;
+ unsigned long max_prate;
};

#define COMPOSITE(_id, cname, pnames, f, mo, ms, mw, mf, ds, dw,\
@@ -559,7 +560,7 @@ struct rockchip_clk_branch {
.gate_offset = -1, \
}

-#define COMPOSITE_FRAC(_id, cname, pname, f, mo, df, go, gs, gf)\
+#define COMPOSITE_FRAC(_id, cname, pname, f, mo, df, go, gs, gf, prate)\
{ \
.id = _id, \
.branch_type = branch_fraction_divider, \
@@ -574,9 +575,10 @@ struct rockchip_clk_branch {
.gate_offset = go, \
.gate_shift = gs, \
.gate_flags = gf, \
+ .max_prate = prate, \
}

-#define COMPOSITE_FRACMUX(_id, cname, pname, f, mo, df, go, gs, gf, ch) \
+#define COMPOSITE_FRACMUX(_id, cname, pname, f, mo, df, go, gs, gf, ch, prate) \
{ \
.id = _id, \
.branch_type = branch_fraction_divider, \
@@ -592,9 +594,10 @@ struct rockchip_clk_branch {
.gate_shift = gs, \
.gate_flags = gf, \
.child = ch, \
+ .max_prate = prate, \
}

-#define COMPOSITE_FRACMUX_NOGATE(_id, cname, pname, f, mo, df, ch) \
+#define COMPOSITE_FRACMUX_NOGATE(_id, cname, pname, f, mo, df, ch, prate) \
{ \
.id = _id, \
.branch_type = branch_fraction_divider, \
@@ -608,6 +611,7 @@ struct rockchip_clk_branch {
.div_flags = df, \
.gate_offset = -1, \
.child = ch, \
+ .max_prate = prate, \
}

#define COMPOSITE_DDRCLK(_id, cname, pnames, f, mo, ms, mw, \
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 2ae7604783dd..30993c0630a3 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -624,6 +624,7 @@ struct clk_hw *clk_hw_register_fixed_factor(struct device *dev,
* @mwidth: width of the numerator bit field
* @nshift: shift to the denominator bit field
* @nwidth: width of the denominator bit field
+ * @max_parent: the maximum frequency of fractional divider parent clock
* @lock: register lock
*
* Clock with adjustable fractional divider affecting its output frequency.
@@ -647,6 +648,7 @@ struct clk_fractional_divider {
u8 nwidth;
u32 nmask;
u8 flags;
+ unsigned long max_prate;
void (*approximation)(struct clk_hw *hw,
unsigned long rate, unsigned long *parent_rate,
unsigned long *m, unsigned long *n);
--
1.9.1