diff options
Diffstat (limited to 'drivers/clk/at91/at91sam9n12.c')
| -rw-r--r-- | drivers/clk/at91/at91sam9n12.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/clk/at91/at91sam9n12.c b/drivers/clk/at91/at91sam9n12.c index 0bb19400d199..08a10e12d08d 100644 --- a/drivers/clk/at91/at91sam9n12.c +++ b/drivers/clk/at91/at91sam9n12.c @@ -54,9 +54,14 @@ static const struct clk_pll_characteristics pllb_characteristics = { static const struct { char *n; char *p; + unsigned long flags; u8 id; } at91sam9n12_systemck[] = { - { .n = "ddrck", .p = "masterck_div", .id = 2 }, + /* + * ddrck feeds DDR controller and is enabled by bootloader thus we need + * to keep it enabled in case there is no Linux consumer for it. + */ + { .n = "ddrck", .p = "masterck_div", .id = 2, .flags = CLK_IS_CRITICAL }, { .n = "lcdck", .p = "masterck_div", .id = 3 }, { .n = "uhpck", .p = "usbck", .id = 6 }, { .n = "udpck", .p = "usbck", .id = 7 }, @@ -223,7 +228,8 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np) for (i = 0; i < ARRAY_SIZE(at91sam9n12_systemck); i++) { hw = at91_clk_register_system(regmap, at91sam9n12_systemck[i].n, at91sam9n12_systemck[i].p, - at91sam9n12_systemck[i].id); + at91sam9n12_systemck[i].id, + at91sam9n12_systemck[i].flags); if (IS_ERR(hw)) goto err_free; @@ -236,7 +242,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np) at91sam9n12_periphck[i].n, "masterck_div", at91sam9n12_periphck[i].id, - &range, INT_MIN); + &range, INT_MIN, 0); if (IS_ERR(hw)) goto err_free; |