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Commit 16109b3f authored by Dave Airlie's avatar Dave Airlie
Browse files

intelfb: add p divisor increments for i9xx. 



Signed-off-by: default avatarDave Airlie <airlied@linux.ie>
parent 8492f081

drivers/video/intelfb/intelfbhw.c

+7 −6
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ struct pll_min_max { 
	int min_p1, max_p1;

	int min_vco_freq, max_vco_freq;

	int p_transition_clock;

	int p_inc_lo, p_inc_hi;

};



#define PLLS_I8xx 0
@@ -56,8 +57,8 @@ struct pll_min_max { 
#define PLLS_MAX 2



struct pll_min_max plls[PLLS_MAX] = {

	{ 108, 140, 18, 26, 6, 16, 3, 16, 4, 128, 0, 31, 930000, 1400000, 165000 }, //I8xx

	{  75, 120, 10, 20, 5, 9, 4,  7, 5, 80, 1, 8, 930000, 2800000, 200000 }  //I9xx

	{ 108, 140, 18, 26, 6, 16, 3, 16, 4, 128, 0, 31, 930000, 1400000, 165000, 4, 22 }, //I8xx

	{  75, 120, 10, 20, 5, 9, 4,  7, 5, 80, 1, 8, 930000, 2800000, 200000, 10, 5 }  //I9xx

};



int
@@ -822,15 +823,15 @@ calc_pll_params(int index, int clock, u32 *retm1, u32 *retm2, u32 *retn, u32 *re 
	div_min = ROUND_UP_TO(plls[index].min_vco_freq, clock) / clock;



	if (clock <= plls[index].p_transition_clock)

		p_inc = 4;

		p_inc = plls[index].p_inc_lo;

	else

		p_inc = 2;

		p_inc = plls[index].p_inc_hi;

	p_min = ROUND_UP_TO(div_min, p_inc);

	p_max = ROUND_DOWN_TO(div_max, p_inc);

	if (p_min < plls[index].min_p)

		p_min = 4;

		p_min = plls[index].min_p;

	if (p_max > plls[index].max_p)

		p_max = 128;

		p_max = plls[index].max_p;



	DBG_MSG("p range is %d-%d (%d)\n", p_min, p_max, p_inc);