According to the Allwinner User Manual, the Allwinner A64 requires PLL-MIPI to run at 500MHz-1.4GHz. Add support for that to ccu_nkm. Signed-off-by: Frank Oltmanns <frank@xxxxxxxxxxxx> --- drivers/clk/sunxi-ng/ccu_nkm.c | 13 +++++++++++++ drivers/clk/sunxi-ng/ccu_nkm.h | 2 ++ 2 files changed, 15 insertions(+) diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c index 1168d894d636..7d135908d6e0 100644 --- a/drivers/clk/sunxi-ng/ccu_nkm.c +++ b/drivers/clk/sunxi-ng/ccu_nkm.c @@ -181,6 +181,12 @@ static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux, if (nkm->common.features & CCU_FEATURE_FIXED_POSTDIV) rate *= nkm->fixed_post_div; + if (nkm->min_rate && rate < nkm->min_rate) + rate = nkm->min_rate; + + if (nkm->max_rate && rate > nkm->max_rate) + rate = nkm->max_rate; + if (!clk_hw_can_set_rate_parent(&nkm->common.hw)) rate = ccu_nkm_find_best(*parent_rate, rate, &_nkm, &nkm->common); else @@ -220,6 +226,13 @@ static int ccu_nkm_set_rate(struct clk_hw *hw, unsigned long rate, _nkm.min_m = 1; _nkm.max_m = nkm->m.max ?: 1 << nkm->m.width; + + if (nkm->min_rate && rate < nkm->min_rate) + rate = nkm->min_rate; + + if (nkm->max_rate && rate > nkm->max_rate) + rate = nkm->max_rate; + ccu_nkm_find_best(parent_rate, rate, &_nkm, &nkm->common); spin_lock_irqsave(nkm->common.lock, flags); diff --git a/drivers/clk/sunxi-ng/ccu_nkm.h b/drivers/clk/sunxi-ng/ccu_nkm.h index c409212ee40e..358a9df6b6a0 100644 --- a/drivers/clk/sunxi-ng/ccu_nkm.h +++ b/drivers/clk/sunxi-ng/ccu_nkm.h @@ -27,6 +27,8 @@ struct ccu_nkm { struct ccu_mux_internal mux; unsigned int fixed_post_div; + unsigned long min_rate; + unsigned long max_rate; unsigned long max_m_n_ratio; unsigned long min_parent_m_ratio; -- 2.43.0