drm/radeon/kms: use lcd pll limits when available
The bios has alternate pll output limits for LCD panels.
If available, use these for pll divider calculations.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 1702b82..b868ffa 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -129,6 +129,7 @@
#define RADEON_PLL_USE_FRAC_FB_DIV (1 << 10)
#define RADEON_PLL_PREFER_CLOSEST_LOWER (1 << 11)
#define RADEON_PLL_USE_POST_DIV (1 << 12)
+#define RADEON_PLL_IS_LCD (1 << 13)
/* pll algo */
enum radeon_pll_algo {
@@ -149,6 +150,8 @@
uint32_t pll_in_max;
uint32_t pll_out_min;
uint32_t pll_out_max;
+ uint32_t lcd_pll_out_min;
+ uint32_t lcd_pll_out_max;
uint32_t best_vco;
/* divider limits */