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clk: meson: meson8b: add the vclk2_en gate clock

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HHI_VIID_CLK_CNTL[19] is not part of the public S805 datasheet. However,
the GXBB driver defines this bit as a gate called "vclk2" and in the
3.10 kernel GPL code dump the following line can found:
  WRITE_LCD_CBUS_REG_BITS(HHI_VIID_CLK_CNTL, 0, 19, 1); //disable vclk2_en

Add this gate clock to the Meson8/Meson8b/Meson8m2 clock controller to
complete the VCLK2 clock tree.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200629203904.2989007-3-martin.blumenstingl@googlemail.com
This commit is contained in:
Martin Blumenstingl 2020-06-29 22:39:04 +02:00 committed by Jerome Brunet
parent e653b41131
commit 2568528f55
2 changed files with 27 additions and 6 deletions
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30
drivers/clk/meson/meson8b.c
View File

@ -1387,6 +1387,22 @@ static struct clk_regmap meson8b_vclk2_clk_in_en = {
},
};
static struct clk_regmap meson8b_vclk2_clk_en = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_VIID_CLK_DIV,
.bit_idx = 19,
},
.hw.init = &(struct clk_init_data){
.name = "vclk2_en",
.ops = &clk_regmap_gate_ro_ops,
.parent_hws = (const struct clk_hw *[]) {
&meson8b_vclk2_clk_in_en.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap meson8b_vclk2_div1_gate = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_VIID_CLK_DIV,
@ -1396,7 +1412,7 @@ static struct clk_regmap meson8b_vclk2_div1_gate = {
.name = "vclk2_div1_en",
.ops = &clk_regmap_gate_ro_ops,
.parent_hws = (const struct clk_hw *[]) {
&meson8b_vclk2_clk_in_en.hw
&meson8b_vclk2_clk_en.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
@ -1410,7 +1426,7 @@ static struct clk_fixed_factor meson8b_vclk2_div2_div = {
.name = "vclk2_div2",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) {
&meson8b_vclk2_clk_in_en.hw
&meson8b_vclk2_clk_en.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
@ -1440,7 +1456,7 @@ static struct clk_fixed_factor meson8b_vclk2_div4_div = {
.name = "vclk2_div4",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) {
&meson8b_vclk2_clk_in_en.hw
&meson8b_vclk2_clk_en.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
@ -1470,7 +1486,7 @@ static struct clk_fixed_factor meson8b_vclk2_div6_div = {
.name = "vclk2_div6",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) {
&meson8b_vclk2_clk_in_en.hw
&meson8b_vclk2_clk_en.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
@ -1500,7 +1516,7 @@ static struct clk_fixed_factor meson8b_vclk2_div12_div = {
.name = "vclk2_div12",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) {
&meson8b_vclk2_clk_in_en.hw
&meson8b_vclk2_clk_en.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
@ -2848,6 +2864,7 @@ static struct clk_hw_onecell_data meson8_hw_onecell_data = {
[CLKID_VCLK_DIV12] = &meson8b_vclk_div12_div_gate.hw,
[CLKID_VCLK2_IN_SEL] = &meson8b_vclk2_in_sel.hw,
[CLKID_VCLK2_IN_EN] = &meson8b_vclk2_clk_in_en.hw,
[CLKID_VCLK2_EN] = &meson8b_vclk2_clk_en.hw,
[CLKID_VCLK2_DIV1] = &meson8b_vclk2_div1_gate.hw,
[CLKID_VCLK2_DIV2_DIV] = &meson8b_vclk2_div2_div.hw,
[CLKID_VCLK2_DIV2] = &meson8b_vclk2_div2_div_gate.hw,
@ -3054,6 +3071,7 @@ static struct clk_hw_onecell_data meson8b_hw_onecell_data = {
[CLKID_VCLK_DIV12] = &meson8b_vclk_div12_div_gate.hw,
[CLKID_VCLK2_IN_SEL] = &meson8b_vclk2_in_sel.hw,
[CLKID_VCLK2_IN_EN] = &meson8b_vclk2_clk_in_en.hw,
[CLKID_VCLK2_EN] = &meson8b_vclk2_clk_en.hw,
[CLKID_VCLK2_DIV1] = &meson8b_vclk2_div1_gate.hw,
[CLKID_VCLK2_DIV2_DIV] = &meson8b_vclk2_div2_div.hw,
[CLKID_VCLK2_DIV2] = &meson8b_vclk2_div2_div_gate.hw,
@ -3271,6 +3289,7 @@ static struct clk_hw_onecell_data meson8m2_hw_onecell_data = {
[CLKID_VCLK_DIV12] = &meson8b_vclk_div12_div_gate.hw,
[CLKID_VCLK2_IN_SEL] = &meson8b_vclk2_in_sel.hw,
[CLKID_VCLK2_IN_EN] = &meson8b_vclk2_clk_in_en.hw,
[CLKID_VCLK2_EN] = &meson8b_vclk2_clk_en.hw,
[CLKID_VCLK2_DIV1] = &meson8b_vclk2_div1_gate.hw,
[CLKID_VCLK2_DIV2_DIV] = &meson8b_vclk2_div2_div.hw,
[CLKID_VCLK2_DIV2] = &meson8b_vclk2_div2_div_gate.hw,
@ -3470,6 +3489,7 @@ static struct clk_regmap *const meson8b_clk_regmaps[] = {
&meson8b_vclk_div12_div_gate,
&meson8b_vclk2_in_sel,
&meson8b_vclk2_clk_in_en,
&meson8b_vclk2_clk_en,
&meson8b_vclk2_div1_gate,
&meson8b_vclk2_div2_div_gate,
&meson8b_vclk2_div4_div_gate,

3
drivers/clk/meson/meson8b.h
View File

@ -181,8 +181,9 @@
#define CLKID_CTS_MCLK_I958_SEL 210
#define CLKID_CTS_MCLK_I958_DIV 211
#define CLKID_VCLK_EN 214
#define CLKID_VCLK2_EN 215
#define CLK_NR_CLKS 215
#define CLK_NR_CLKS 216
/*
* include the CLKID and RESETID that have