diff options
Diffstat (limited to 'drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c index 677c62571811..ec486ff02c9b 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c @@ -3,6 +3,7 @@ * Copyright (c) 2018, The Linux Foundation */ +#include <dt-bindings/clock/qcom,dsi-phy-28nm.h> #include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/iopoll.h> @@ -443,21 +444,19 @@ static unsigned long dsi_pll_10nm_vco_recalc_rate(struct clk_hw *hw, return (unsigned long)vco_rate; } -static long dsi_pll_10nm_clk_round_rate(struct clk_hw *hw, - unsigned long rate, unsigned long *parent_rate) +static int dsi_pll_10nm_clk_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct dsi_pll_10nm *pll_10nm = to_pll_10nm(hw); - if (rate < pll_10nm->phy->cfg->min_pll_rate) - return pll_10nm->phy->cfg->min_pll_rate; - else if (rate > pll_10nm->phy->cfg->max_pll_rate) - return pll_10nm->phy->cfg->max_pll_rate; - else - return rate; + req->rate = clamp_t(unsigned long, req->rate, + pll_10nm->phy->cfg->min_pll_rate, pll_10nm->phy->cfg->max_pll_rate); + + return 0; } static const struct clk_ops clk_ops_dsi_pll_10nm_vco = { - .round_rate = dsi_pll_10nm_clk_round_rate, + .determine_rate = dsi_pll_10nm_clk_determine_rate, .set_rate = dsi_pll_10nm_vco_set_rate, .recalc_rate = dsi_pll_10nm_vco_recalc_rate, .prepare = dsi_pll_10nm_vco_prepare, @@ -703,6 +702,13 @@ static int dsi_pll_10nm_init(struct msm_dsi_phy *phy) /* TODO: Remove this when we have proper display handover support */ msm_dsi_phy_pll_save_state(phy); + /* + * Store also proper vco_current_rate, because its value will be used in + * dsi_10nm_pll_restore_state(). + */ + if (!dsi_pll_10nm_vco_recalc_rate(&pll_10nm->clk_hw, VCO_REF_CLK_RATE)) + pll_10nm->vco_current_rate = pll_10nm->phy->cfg->min_pll_rate; + return 0; } |