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clk: at91: allow setting PCKx parent via DT

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This exposes PROGx clocks for use in assigned-clocks DeviceTree property
for selecting PCKx parent clock.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lkml.kernel.org/r/0054532c00163ddf405dad658b32f0d7d97fcc8e.1588630999.git.mirq-linux@rere.qmqm.pl
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Michał Mirosław 2020-05-05 00:37:56 +02:00 committed by Stephen Boyd
parent 7425f246f7
commit 99767cd440
13 changed files with 46 additions and 13 deletions
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4
drivers/clk/at91/at91rm9200.c
View File

@ -100,7 +100,7 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
at91rm9200_pmc = pmc_data_allocate(PMC_MAIN + 1,
nck(at91rm9200_systemck),
nck(at91rm9200_periphck), 0);
nck(at91rm9200_periphck), 0, 4);
if (!at91rm9200_pmc)
return;
@ -159,6 +159,8 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
&at91rm9200_programmable_layout);
if (IS_ERR(hw))
goto err_free;
at91rm9200_pmc->pchws[i] = hw;
}
for (i = 0; i < ARRAY_SIZE(at91rm9200_systemck); i++) {

5
drivers/clk/at91/at91sam9260.c
View File

@ -354,7 +354,8 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
at91sam9260_pmc = pmc_data_allocate(PMC_MAIN + 1,
ndck(data->sck, data->num_sck),
ndck(data->pck, data->num_pck), 0);
ndck(data->pck, data->num_pck),
0, data->num_progck);
if (!at91sam9260_pmc)
return;
@ -434,6 +435,8 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
&at91rm9200_programmable_layout);
if (IS_ERR(hw))
goto err_free;
at91sam9260_pmc->pchws[i] = hw;
}
for (i = 0; i < data->num_sck; i++) {

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

@ -117,7 +117,7 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
at91sam9g45_pmc = pmc_data_allocate(PMC_MAIN + 1,
nck(at91sam9g45_systemck),
nck(at91sam9g45_periphck), 0);
nck(at91sam9g45_periphck), 0, 2);
if (!at91sam9g45_pmc)
return;
@ -182,6 +182,8 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
&at91sam9g45_programmable_layout);
if (IS_ERR(hw))
goto err_free;
at91sam9g45_pmc->pchws[i] = hw;
}
for (i = 0; i < ARRAY_SIZE(at91sam9g45_systemck); i++) {

4
drivers/clk/at91/at91sam9n12.c
View File

@ -129,7 +129,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
return;
at91sam9n12_pmc = pmc_data_allocate(PMC_MAIN + 1,
nck(at91sam9n12_systemck), 31, 0);
nck(at91sam9n12_systemck), 31, 0, 2);
if (!at91sam9n12_pmc)
return;
@ -198,6 +198,8 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
&at91sam9x5_programmable_layout);
if (IS_ERR(hw))
goto err_free;
at91sam9n12_pmc->pchws[i] = hw;
}
for (i = 0; i < ARRAY_SIZE(at91sam9n12_systemck); i++) {

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

@ -89,7 +89,7 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
at91sam9rl_pmc = pmc_data_allocate(PMC_MAIN + 1,
nck(at91sam9rl_systemck),
nck(at91sam9rl_periphck), 0);
nck(at91sam9rl_periphck), 0, 2);
if (!at91sam9rl_pmc)
return;
@ -138,6 +138,8 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
&at91rm9200_programmable_layout);
if (IS_ERR(hw))
goto err_free;
at91sam9rl_pmc->pchws[i] = hw;
}
for (i = 0; i < ARRAY_SIZE(at91sam9rl_systemck); i++) {

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

@ -151,7 +151,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
return;
at91sam9x5_pmc = pmc_data_allocate(PMC_MAIN + 1,
nck(at91sam9x5_systemck), 31, 0);
nck(at91sam9x5_systemck), 31, 0, 2);
if (!at91sam9x5_pmc)
return;
@ -227,6 +227,8 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
&at91sam9x5_programmable_layout);
if (IS_ERR(hw))
goto err_free;
at91sam9x5_pmc->pchws[i] = hw;
}
for (i = 0; i < ARRAY_SIZE(at91sam9x5_systemck); i++) {

12
drivers/clk/at91/pmc.c
View File

@ -67,6 +67,10 @@ struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data)
if (idx < pmc_data->ngck)
return pmc_data->ghws[idx];
break;
case PMC_TYPE_PROGRAMMABLE:
if (idx < pmc_data->npck)
return pmc_data->pchws[idx];
break;
default:
break;
}
@ -77,9 +81,10 @@ struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data)
}
struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem,
unsigned int nperiph, unsigned int ngck)
unsigned int nperiph, unsigned int ngck,
unsigned int npck)
{
unsigned int num_clks = ncore + nsystem + nperiph + ngck;
unsigned int num_clks = ncore + nsystem + nperiph + ngck + npck;
struct pmc_data *pmc_data;
pmc_data = kzalloc(struct_size(pmc_data, hwtable, num_clks),
@ -99,6 +104,9 @@ struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem,
pmc_data->ngck = ngck;
pmc_data->ghws = pmc_data->phws + nperiph;
pmc_data->npck = npck;
pmc_data->pchws = pmc_data->ghws + ngck;
return pmc_data;
}

5
drivers/clk/at91/pmc.h
View File

@ -24,6 +24,8 @@ struct pmc_data {
struct clk_hw **phws;
unsigned int ngck;
struct clk_hw **ghws;
unsigned int npck;
struct clk_hw **pchws;
struct clk_hw *hwtable[];
};
@ -96,7 +98,8 @@ struct clk_pcr_layout {
#define ndck(a, s) (a[s - 1].id + 1)
#define nck(a) (a[ARRAY_SIZE(a) - 1].id + 1)
struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem,
unsigned int nperiph, unsigned int ngck);
unsigned int nperiph, unsigned int ngck,
unsigned int npck);
int of_at91_get_clk_range(struct device_node *np, const char *propname,
struct clk_range *range);

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

@ -185,7 +185,7 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
sam9x60_pmc = pmc_data_allocate(PMC_MAIN + 1,
nck(sam9x60_systemck),
nck(sam9x60_periphck),
nck(sam9x60_gck));
nck(sam9x60_gck), 8);
if (!sam9x60_pmc)
return;
@ -255,6 +255,8 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
&sam9x60_programmable_layout);
if (IS_ERR(hw))
goto err_free;
sam9x60_pmc->pchws[i] = hw;
}
for (i = 0; i < ARRAY_SIZE(sam9x60_systemck); i++) {

4
drivers/clk/at91/sama5d2.c
View File

@ -170,7 +170,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
sama5d2_pmc = pmc_data_allocate(PMC_I2S1_MUX + 1,
nck(sama5d2_systemck),
nck(sama5d2_periph32ck),
nck(sama5d2_gck));
nck(sama5d2_gck), 3);
if (!sama5d2_pmc)
return;
@ -268,6 +268,8 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
&sama5d2_programmable_layout);
if (IS_ERR(hw))
goto err_free;
sama5d2_pmc->pchws[i] = hw;
}
for (i = 0; i < ARRAY_SIZE(sama5d2_systemck); i++) {

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

@ -127,7 +127,7 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
sama5d3_pmc = pmc_data_allocate(PMC_MAIN + 1,
nck(sama5d3_systemck),
nck(sama5d3_periphck), 0);
nck(sama5d3_periphck), 0, 3);
if (!sama5d3_pmc)
return;
@ -201,6 +201,8 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
&at91sam9x5_programmable_layout);
if (IS_ERR(hw))
goto err_free;
sama5d3_pmc->pchws[i] = hw;
}
for (i = 0; i < ARRAY_SIZE(sama5d3_systemck); i++) {

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

@ -142,7 +142,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
sama5d4_pmc = pmc_data_allocate(PMC_MCK2 + 1,
nck(sama5d4_systemck),
nck(sama5d4_periph32ck), 0);
nck(sama5d4_periph32ck), 0, 3);
if (!sama5d4_pmc)
return;
@ -224,6 +224,8 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
&at91sam9x5_programmable_layout);
if (IS_ERR(hw))
goto err_free;
sama5d4_pmc->pchws[i] = hw;
}
for (i = 0; i < ARRAY_SIZE(sama5d4_systemck); i++) {

1
include/dt-bindings/clock/at91.h
View File

@ -12,6 +12,7 @@
#define PMC_TYPE_SYSTEM 1
#define PMC_TYPE_PERIPHERAL 2
#define PMC_TYPE_GCK 3
#define PMC_TYPE_PROGRAMMABLE 4
#define PMC_SLOW 0
#define PMC_MCK 1