clk: bcm2835: Avoid overwriting the div info when disabling a pll_div clk

[mirror_ubuntu-zesty-kernel.git] / drivers / clk / bcm / clk-bcm2835.c

diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 836d07550be3f57e7c36da41f84d8edf3f90e0f0..2acaa77ad482a99f28ea64ea43c891501125304c 100644 (file)
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -751,7 +751,9 @@ static void bcm2835_pll_divider_off(struct clk_hw *hw)
        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);
+       cprman_write(cprman, data->a2w_reg,
+                    cprman_read(cprman, data->a2w_reg) |
+                    A2W_PLL_CHANNEL_DISABLE);
        spin_unlock(&cprman->regs_lock);
 }