diff options
| -rw-r--r-- | drivers/clk/bcm/clk-bcm2835.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index 4f9830c1b121..185a4d859638 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -1068,10 +1068,12 @@ static void bcm2835_pll_divider_off(struct clk_hw *hw) struct bcm2835_cprman *cprman = divider->cprman; const struct bcm2835_pll_divider_data *data = divider->data; + spin_lock(&cprman->regs_lock); cprman_write(cprman, data->cm_reg, (cprman_read(cprman, data->cm_reg) & ~data->load_mask) | data->hold_mask); cprman_write(cprman, data->a2w_reg, A2W_PLL_CHANNEL_DISABLE); + spin_unlock(&cprman->regs_lock); } static int bcm2835_pll_divider_on(struct clk_hw *hw) @@ -1080,12 +1082,14 @@ static int bcm2835_pll_divider_on(struct clk_hw *hw) struct bcm2835_cprman *cprman = divider->cprman; const struct bcm2835_pll_divider_data *data = divider->data; + spin_lock(&cprman->regs_lock); cprman_write(cprman, data->a2w_reg, cprman_read(cprman, data->a2w_reg) & ~A2W_PLL_CHANNEL_DISABLE); cprman_write(cprman, data->cm_reg, cprman_read(cprman, data->cm_reg) & ~data->hold_mask); + spin_unlock(&cprman->regs_lock); return 0; } |