clk: msm: mdss: Read PLL/PHY status once during bootup

Read the PLL/PHY status once during bootup to avoid delays
due to polling. Polling for PLL/PHY status is only required
when handling HDMI use cases in which the cable is connected
after bootup is complete.

Change-Id: Ie1d5983a7784cb5f3472527d1b510f128ae9d325
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>

diff --git a/drivers/clk/msm/mdss/mdss-hdmi-pll-8996.c b/drivers/clk/msm/mdss/mdss-hdmi-pll-8996.c
index e38cce6..8a96a0a 100644 (file)
--- a/drivers/clk/msm/mdss/mdss-hdmi-pll-8996.c
+++ b/drivers/clk/msm/mdss/mdss-hdmi-pll-8996.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2014-2016, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -2360,8 +2360,8 @@ static enum handoff hdmi_8996_vco_handoff(struct clk *c)
 
        io->handoff_resources = true;
 
-       if (hdmi_8996_pll_lock_status(io)) {
-               if (hdmi_8996_phy_ready_status(io)) {
+       if (MDSS_PLL_REG_R(io->pll_base, QSERDES_COM_C_READY_STATUS) & BIT(0)) {
+               if (MDSS_PLL_REG_R(io->phy_base, HDMI_PHY_STATUS) & BIT(0)) {
                        io->pll_on = true;
                        c->rate = hdmi_8996_vco_get_rate(c);
                        ret = HANDOFF_ENABLED_CLK;