#endif
-static int dsi_calc_mnp(int target_dsi_clk, struct dsi_mnp *dsi_mnp)
+static int dsi_calc_mnp(struct drm_i915_private *dev_priv,
+ struct dsi_mnp *dsi_mnp, int target_dsi_clk)
{
unsigned int calc_m = 0, calc_p = 0;
- unsigned int m, n = 1, p;
- int ref_clk = 25000;
+ unsigned int m_min, m_max, p_min = 2, p_max = 6;
+ unsigned int m, n, p;
+ int ref_clk;
int delta = target_dsi_clk;
u32 m_seed;
return -ECHRNG;
}
- for (m = 62; m <= 92 && delta; m++) {
- for (p = 2; p <= 6 && delta; p++) {
+ if (IS_CHERRYVIEW(dev_priv)) {
+ ref_clk = 100000;
+ n = 4;
+ m_min = 70;
+ m_max = 96;
+ } else {
+ ref_clk = 25000;
+ n = 1;
+ m_min = 62;
+ m_max = 92;
+ }
+
+ for (m = m_min; m <= m_max && delta; m++) {
+ for (p = p_min; p <= p_max && delta; p++) {
/*
* Find the optimal m and p divisors with minimal delta
* +/- the required clock
dsi_clk = dsi_clk_from_pclk(intel_dsi->pclk, intel_dsi->pixel_format,
intel_dsi->lane_count);
- ret = dsi_calc_mnp(dsi_clk, &dsi_mnp);
+ ret = dsi_calc_mnp(dev_priv, &dsi_mnp, dsi_clk);
if (ret) {
DRM_DEBUG_KMS("dsi_calc_mnp failed\n");
return;