diff options
Diffstat (limited to 'drivers/clk/at91/at91sam9g45.c')
| -rw-r--r-- | drivers/clk/at91/at91sam9g45.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/clk/at91/at91sam9g45.c b/drivers/clk/at91/at91sam9g45.c index 8c9344451f46..5099669ddcbd 100644 --- a/drivers/clk/at91/at91sam9g45.c +++ b/drivers/clk/at91/at91sam9g45.c @@ -40,9 +40,14 @@ static const struct clk_pll_characteristics plla_characteristics = { static const struct { char *n; char *p; + unsigned long flags; u8 id; } at91sam9g45_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 = "uhpck", .p = "usbck", .id = 6 }, { .n = "pck0", .p = "prog0", .id = 8 }, { .n = "pck1", .p = "prog1", .id = 9 }, @@ -198,7 +203,8 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np) for (i = 0; i < ARRAY_SIZE(at91sam9g45_systemck); i++) { hw = at91_clk_register_system(regmap, at91sam9g45_systemck[i].n, at91sam9g45_systemck[i].p, - at91sam9g45_systemck[i].id); + at91sam9g45_systemck[i].id, + at91sam9g45_systemck[i].flags); if (IS_ERR(hw)) goto err_free; |