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clk: at91: allow setting all PMC clock parents via DT 

We need to have clocks accessible via phandle to select them
as peripheral clock parent using assigned-clock-parents in DT.
Add support for PLLACK/PLLBCK/AUDIOPLLCK clocks where available.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lkml.kernel.org/r/fa39cc10dab8341ea4bc2b7152be9217b2cd34a5.1588630999.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Michał Mirosław 2020-05-05 00:37:57 +02:00 committed by Stephen Boyd
parent 99767cd440
commit 03a1ee1dad
11 changed files with 41 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/clk/at91/at91rm9200.c
View File

@ -98,7 +98,7 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
at91rm9200_pmc = pmc_data_allocate(PMC_MAIN + 1,
at91rm9200_pmc = pmc_data_allocate(PMC_PLLBCK + 1,
nck(at91rm9200_systemck),
nck(at91rm9200_periphck), 0, 4);
if (!at91rm9200_pmc)
@ -123,12 +123,16 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
if (IS_ERR(hw))
goto err_free;
at91rm9200_pmc->chws[PMC_PLLACK] = hw;
hw = at91_clk_register_pll(regmap, "pllbck", "mainck", 1,
&at91rm9200_pll_layout,
&rm9200_pll_characteristics);
if (IS_ERR(hw))
goto err_free;
at91rm9200_pmc->chws[PMC_PLLBCK] = hw;
parent_names[0] = slowxtal_name;
parent_names[1] = "mainck";
parent_names[2] = "pllack";

6
drivers/clk/at91/at91sam9260.c
View File

@ -352,7 +352,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
if (IS_ERR(regmap))
return;
at91sam9260_pmc = pmc_data_allocate(PMC_MAIN + 1,
at91sam9260_pmc = pmc_data_allocate(PMC_PLLBCK + 1,
ndck(data->sck, data->num_sck),
ndck(data->pck, data->num_pck),
0, data->num_progck);
@ -399,12 +399,16 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
if (IS_ERR(hw))
goto err_free;
at91sam9260_pmc->chws[PMC_PLLACK] = hw;
hw = at91_clk_register_pll(regmap, "pllbck", "mainck", 1,
data->pllb_layout,
data->pllb_characteristics);
if (IS_ERR(hw))
goto err_free;
at91sam9260_pmc->chws[PMC_PLLBCK] = hw;
parent_names[0] = slck_name;
parent_names[1] = "mainck";
parent_names[2] = "pllack";

4
drivers/clk/at91/at91sam9g45.c
View File

@ -115,7 +115,7 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
at91sam9g45_pmc = pmc_data_allocate(PMC_MAIN + 1,
at91sam9g45_pmc = pmc_data_allocate(PMC_PLLACK + 1,
nck(at91sam9g45_systemck),
nck(at91sam9g45_periphck), 0, 2);
if (!at91sam9g45_pmc)
@ -143,6 +143,8 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
if (IS_ERR(hw))
goto err_free;
at91sam9g45_pmc->chws[PMC_PLLACK] = hw;
hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
if (IS_ERR(hw))
goto err_free;

6
drivers/clk/at91/at91sam9n12.c
View File

@ -128,7 +128,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
at91sam9n12_pmc = pmc_data_allocate(PMC_MAIN + 1,
at91sam9n12_pmc = pmc_data_allocate(PMC_PLLBCK + 1,
nck(at91sam9n12_systemck), 31, 0, 2);
if (!at91sam9n12_pmc)
return;
@ -162,11 +162,15 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
if (IS_ERR(hw))
goto err_free;
at91sam9n12_pmc->chws[PMC_PLLACK] = hw;
hw = at91_clk_register_pll(regmap, "pllbck", "mainck", 1,
&at91rm9200_pll_layout, &pllb_characteristics);
if (IS_ERR(hw))
goto err_free;
at91sam9n12_pmc->chws[PMC_PLLBCK] = hw;
parent_names[0] = slck_name;
parent_names[1] = "mainck";
parent_names[2] = "plladivck";

4
drivers/clk/at91/at91sam9rl.c
View File

@ -87,7 +87,7 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
at91sam9rl_pmc = pmc_data_allocate(PMC_MAIN + 1,
at91sam9rl_pmc = pmc_data_allocate(PMC_PLLACK + 1,
nck(at91sam9rl_systemck),
nck(at91sam9rl_periphck), 0, 2);
if (!at91sam9rl_pmc)
@ -105,6 +105,8 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
if (IS_ERR(hw))
goto err_free;
at91sam9rl_pmc->chws[PMC_PLLACK] = hw;
hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
if (IS_ERR(hw))
goto err_free;

4
drivers/clk/at91/at91sam9x5.c
View File

@ -150,7 +150,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
if (IS_ERR(regmap))
return;
at91sam9x5_pmc = pmc_data_allocate(PMC_MAIN + 1,
at91sam9x5_pmc = pmc_data_allocate(PMC_PLLACK + 1,
nck(at91sam9x5_systemck), 31, 0, 2);
if (!at91sam9x5_pmc)
return;
@ -184,6 +184,8 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
if (IS_ERR(hw))
goto err_free;
at91sam9x5_pmc->chws[PMC_PLLACK] = hw;
hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
if (IS_ERR(hw))
goto err_free;

4
drivers/clk/at91/sam9x60.c
View File

@ -182,7 +182,7 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
sam9x60_pmc = pmc_data_allocate(PMC_MAIN + 1,
sam9x60_pmc = pmc_data_allocate(PMC_PLLACK + 1,
nck(sam9x60_systemck),
nck(sam9x60_periphck),
nck(sam9x60_gck), 8);
@ -214,6 +214,8 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
if (IS_ERR(hw))
goto err_free;
sam9x60_pmc->chws[PMC_PLLACK] = hw;
hw = sam9x60_clk_register_pll(regmap, &pmc_pll_lock, "upllck",
"main_osc", 1, &upll_characteristics);
if (IS_ERR(hw))

6
drivers/clk/at91/sama5d2.c
View File

@ -167,7 +167,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
sama5d2_pmc = pmc_data_allocate(PMC_I2S1_MUX + 1,
sama5d2_pmc = pmc_data_allocate(PMC_AUDIOPLLCK + 1,
nck(sama5d2_systemck),
nck(sama5d2_periph32ck),
nck(sama5d2_gck), 3);
@ -203,6 +203,8 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
if (IS_ERR(hw))
goto err_free;
sama5d2_pmc->chws[PMC_PLLACK] = hw;
hw = at91_clk_register_audio_pll_frac(regmap, "audiopll_fracck",
"mainck");
if (IS_ERR(hw))
@ -218,6 +220,8 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
if (IS_ERR(hw))
goto err_free;
sama5d2_pmc->chws[PMC_AUDIOPLLCK] = hw;
regmap_sfr = syscon_regmap_lookup_by_compatible("atmel,sama5d2-sfr");
if (IS_ERR(regmap_sfr))
regmap_sfr = NULL;

4
drivers/clk/at91/sama5d3.c
View File

@ -125,7 +125,7 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
sama5d3_pmc = pmc_data_allocate(PMC_MAIN + 1,
sama5d3_pmc = pmc_data_allocate(PMC_PLLACK + 1,
nck(sama5d3_systemck),
nck(sama5d3_periphck), 0, 3);
if (!sama5d3_pmc)
@ -158,6 +158,8 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
if (IS_ERR(hw))
goto err_free;
sama5d3_pmc->chws[PMC_PLLACK] = hw;
hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
if (IS_ERR(hw))
goto err_free;

4
drivers/clk/at91/sama5d4.c
View File

@ -140,7 +140,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
sama5d4_pmc = pmc_data_allocate(PMC_MCK2 + 1,
sama5d4_pmc = pmc_data_allocate(PMC_PLLACK + 1,
nck(sama5d4_systemck),
nck(sama5d4_periph32ck), 0, 3);
if (!sama5d4_pmc)
@ -173,6 +173,8 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
if (IS_ERR(hw))
goto err_free;
sama5d4_pmc->chws[PMC_PLLACK] = hw;
hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
if (IS_ERR(hw))
goto err_free;

3
include/dt-bindings/clock/at91.h
View File

@ -21,6 +21,9 @@
#define PMC_MCK2 4
#define PMC_I2S0_MUX 5
#define PMC_I2S1_MUX 6
#define PMC_PLLACK 7
#define PMC_PLLBCK 8
#define PMC_AUDIOPLLCK 9
#ifndef AT91_PMC_MOSCS
#define AT91_PMC_MOSCS 0 /* MOSCS Flag */