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ARM: at91: pm: set soc_pm.data.mode in at91_pm_secure_init()
In non secure mode, soc_pm.data.mode is set when entering pm in at91_pm_begin(). This value is used (not only) to determine if the system is going into slow clock mode (at91_suspend_entering_slow_clock()). This function is called from various drivers to check this and act accordingly. If not set, the driver might enter an incorrect suspend mode. When using secure suspend mode, at91_pm_begin() is not called and thus soc_pm.data.mode is not set. Since when using secure suspend, only one suspend mode is supported, set this value directly in at91_pm_secure_init(). Signed-off-by: Clément Léger <clement.leger@bootlin.com> Signed-off-by: Thomas Perrot <thomas.perrot@bootlin.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20231020130219.1255937-1-thomas.perrot@bootlin.com Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
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1 changed files with 3 additions and 0 deletions
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@ -1103,6 +1103,7 @@ static void __init at91_pm_secure_init(void)
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if (res.a0 == 0) {
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if (res.a0 == 0) {
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pr_info("AT91: Secure PM: suspend mode set to %s\n",
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pr_info("AT91: Secure PM: suspend mode set to %s\n",
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pm_modes[suspend_mode].pattern);
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pm_modes[suspend_mode].pattern);
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soc_pm.data.mode = suspend_mode;
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return;
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return;
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}
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}
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@ -1112,6 +1113,7 @@ static void __init at91_pm_secure_init(void)
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res = sam_smccc_call(SAMA5_SMC_SIP_GET_SUSPEND_MODE, 0, 0);
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res = sam_smccc_call(SAMA5_SMC_SIP_GET_SUSPEND_MODE, 0, 0);
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if (res.a0 == 0) {
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if (res.a0 == 0) {
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pr_warn("AT91: Secure PM: failed to get default mode\n");
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pr_warn("AT91: Secure PM: failed to get default mode\n");
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soc_pm.data.mode = -1;
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return;
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return;
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}
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}
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@ -1119,6 +1121,7 @@ static void __init at91_pm_secure_init(void)
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pm_modes[suspend_mode].pattern);
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pm_modes[suspend_mode].pattern);
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soc_pm.data.suspend_mode = res.a1;
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soc_pm.data.suspend_mode = res.a1;
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soc_pm.data.mode = soc_pm.data.suspend_mode;
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}
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}
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static const struct of_device_id atmel_shdwc_ids[] = {
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static const struct of_device_id atmel_shdwc_ids[] = {
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{ .compatible = "atmel,sama5d2-shdwc" },
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{ .compatible = "atmel,sama5d2-shdwc" },
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