[PATCH 09/13] ARM: at91: pm: tie the USB clock mask to the pmc

From: Alexandre Belloni
Date: Thu Feb 02 2017 - 09:48:55 EST


The USB clocks mask (uhp_udp_mask) depend on the pmc. Tie it to the pmc id
instead of the SoC.

Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-at91/pm.c | 37 +++++++++++++++++++++++--------------
1 file changed, 23 insertions(+), 14 deletions(-)

diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index b6448043ee7a..c0ef1742135c 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -425,31 +425,46 @@ static void __init at91_pm_sram_init(void)
&at91_pm_suspend_in_sram, at91_pm_suspend_in_sram_sz);
}

+struct pmc_info {
+ unsigned long uhp_udp_mask;
+};
+
+static const struct pmc_info pmc_infos[] __initconst = {
+ { .uhp_udp_mask = AT91RM9200_PMC_UHP | AT91RM9200_PMC_UDP },
+ { .uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP },
+ { .uhp_udp_mask = AT91SAM926x_PMC_UHP },
+};
+
static const struct of_device_id atmel_pmc_ids[] __initconst = {
- { .compatible = "atmel,at91rm9200-pmc" },
- { .compatible = "atmel,at91sam9260-pmc" },
- { .compatible = "atmel,at91sam9g45-pmc" },
- { .compatible = "atmel,at91sam9n12-pmc" },
- { .compatible = "atmel,at91sam9x5-pmc" },
- { .compatible = "atmel,sama5d3-pmc" },
- { .compatible = "atmel,sama5d2-pmc" },
+ { .compatible = "atmel,at91rm9200-pmc", .data = &pmc_infos[0] },
+ { .compatible = "atmel,at91sam9260-pmc", .data = &pmc_infos[1] },
+ { .compatible = "atmel,at91sam9g45-pmc", .data = &pmc_infos[2] },
+ { .compatible = "atmel,at91sam9n12-pmc", .data = &pmc_infos[1] },
+ { .compatible = "atmel,at91sam9x5-pmc", .data = &pmc_infos[1] },
+ { .compatible = "atmel,sama5d3-pmc", .data = &pmc_infos[1] },
+ { .compatible = "atmel,sama5d2-pmc", .data = &pmc_infos[1] },
{ /* sentinel */ },
};

static void __init at91_pm_init(void (*pm_idle)(void))
{
struct device_node *pmc_np;
+ const struct of_device_id *of_id;
+ const struct pmc_info *pmc;

if (at91_cpuidle_device.dev.platform_data)
platform_device_register(&at91_cpuidle_device);

- pmc_np = of_find_matching_node(NULL, atmel_pmc_ids);
+ pmc_np = of_find_matching_node_and_match(NULL, atmel_pmc_ids, &of_id);
pm_data.pmc = of_iomap(pmc_np, 0);
if (!pm_data.pmc) {
pr_err("AT91: PM not supported, PMC not found\n");
return;
}

+ pmc = of_id->data;
+ pm_data.uhp_udp_mask = pmc->uhp_udp_mask;
+
if (pm_idle)
arm_pm_idle = pm_idle;

@@ -470,35 +485,29 @@ void __init at91rm9200_pm_init(void)
*/
at91_ramc_write(0, AT91_MC_SDRAMC_LPR, 0);

- pm_data.uhp_udp_mask = AT91RM9200_PMC_UHP | AT91RM9200_PMC_UDP;
-
at91_pm_init(at91rm9200_idle);
}

void __init at91sam9260_pm_init(void)
{
at91_dt_ramc();
- pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP;
at91_pm_init(at91sam9_idle);
}

void __init at91sam9g45_pm_init(void)
{
at91_dt_ramc();
- pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP;
at91_pm_init(at91sam9_idle);
}

void __init at91sam9x5_pm_init(void)
{
at91_dt_ramc();
- pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP;
at91_pm_init(at91sam9_idle);
}

void __init sama5_pm_init(void)
{
at91_dt_ramc();
- pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP;
at91_pm_init(NULL);
}
--
2.11.0