Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 81a12f46 authored by Ingrid Gallardo's avatar Ingrid Gallardo
Browse files

clk: msm: mdss: program kvco code for 8996 pll 



Calculate and program kvco code, according to the
vco clock rate.

Change-Id: Id2076ee473489feb2e71557339a59938cfca7767
Signed-off-by: default avatarIngrid Gallardo <ingridg@codeaurora.org>
parent cc957303

drivers/clk/msm/mdss/mdss-dsi-pll-8996-util.c

+23 −1
Original line number Diff line number Diff line
@@ -583,6 +583,24 @@ static u32 pll_8996_kvco_slop(u32 vrate) 
	return slop;

}



static inline u32 pll_8996_calc_kvco_code(s64 vco_clk_rate)

{

	u32 kvco_code;



	if ((vco_clk_rate >= 2300000000ULL) &&

	    (vco_clk_rate <= 2600000000ULL))

		kvco_code = 0x2f;

	else if ((vco_clk_rate >= 1800000000ULL) &&

		 (vco_clk_rate < 2300000000ULL))

		kvco_code = 0x2c;

	else

		kvco_code = 0x28;



	pr_debug("rate: %llu kvco_code: 0x%x\n",

		vco_clk_rate, kvco_code);

	return kvco_code;

}



static void pll_8996_calc_vco_count(struct dsi_pll_db *pdb,

			 s64 vco_clk_rate, s64 fref)

{
@@ -618,7 +636,7 @@ static void pll_8996_calc_vco_count(struct dsi_pll_db *pdb, 
	pout->pll_resetsm_cntrl = 48;

	pout->pll_resetsm_cntrl2 = pin->bandgap_timer << 3;

	pout->pll_resetsm_cntrl5 = pin->pll_wakeup_timer;

	pout->pll_kvco_code = 0;

	pout->pll_kvco_code = pll_8996_calc_kvco_code(vco_clk_rate);

}



static void pll_db_commit_ssc(struct mdss_pll_resources *pll,
@@ -859,6 +877,10 @@ static void pll_db_commit_8996(struct mdss_pll_resources *pll, 
	data = (((pout->pll_postdiv - 1) << 4) | pdb->in.pll_lpf_res1);

	MDSS_PLL_REG_W(pll_base, DSIPHY_PLL_PLL_LPF2_POSTDIV, data);



	data = pout->pll_kvco_code;

	MDSS_PLL_REG_W(pll_base, DSIPHY_PLL_KVCO_CODE, data);

	pr_debug("kvco_code:0x%x\n", data);



	data = (pout->pll_n1div | (pout->pll_n2div << 4));

	MDSS_PLL_REG_W(pll_base, DSIPHY_CMN_CLK_CFG0, data);