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Commit 13f16017 authored by Alexandre Belloni's avatar Alexandre Belloni
Browse files

ARM: at91: pm: Tie the USB clock mask to the pmc 



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

Acked-by: default avatarWenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
parent aab02d61

arch/arm/mach-at91/pm.c

+23 −14
Original line number Diff line number Diff line
@@ -442,31 +442,46 @@ 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;
@@ -487,35 +502,29 @@ 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);

}