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authorVille Syrjälä <ville.syrjala@linux.intel.com>2022-03-08 01:39:39 +0200
committerVille Syrjälä <ville.syrjala@linux.intel.com>2022-03-10 11:07:32 +0200
commit8b3ed19ccf9fc80d8d750f61c620eaf9836008ad (patch)
treea3728ddff10cd04f834d0b759d7b5fdcfabd434b
parentdrm/i915: Replace hand rolled bxt vco calculation with chv_calc_dpll_params() (diff)
downloadlinux-dev-8b3ed19ccf9fc80d8d750f61c620eaf9836008ad.tar.xz
linux-dev-8b3ed19ccf9fc80d8d750f61c620eaf9836008ad.zip
drm/i915: Populate bxt/glk DPLL clock limits a bit more
Set the bxt/glk DPLL min dotclock to 25MHz (HDMI minimum) and the max to 594 MHz (HDMI max). The supported DP frequencies (162MHz-540MHz) fit within the same range. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220307233940.4161-8-ville.syrjala@linux.intel.com Acked-by: Jani Nikula <jani.nikula@intel.com>
-rw-r--r--drivers/gpu/drm/i915/display/intel_dpll.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c b/drivers/gpu/drm/i915/display/intel_dpll.c
index c0c76ff8b590..95b9d327ed4d 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll.c
@@ -285,8 +285,7 @@ static const struct intel_limit intel_limits_chv = {
};
static const struct intel_limit intel_limits_bxt = {
- /* FIXME: find real dot limits */
- .dot = { .min = 0, .max = INT_MAX },
+ .dot = { .min = 25000, .max = 594000 },
.vco = { .min = 4800000, .max = 6700000 },
.n = { .min = 1, .max = 1 },
.m1 = { .min = 2, .max = 2 },