On Wednesday, October 25, 2017 3:02:12 PM PDT [email protected] wrote:
> From: Abhay Kumar <[email protected]>
>
> In glk when device boots with only 1366x768 panel, HDA codec doesn't comeup.
> This result in no audio forever as cdclk is < 96Mhz.
> This chagne will ensure CD clock to be twice of BCLK.
>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102937
> Signed-off-by: Abhay Kumar <[email protected]>
> ---
> drivers/gpu/drm/i915/intel_cdclk.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_cdclk.c
> b/drivers/gpu/drm/i915/intel_cdclk.c index e8884c2ade98..185a70f0921c
> 100644
> --- a/drivers/gpu/drm/i915/intel_cdclk.c
> +++ b/drivers/gpu/drm/i915/intel_cdclk.c
> @@ -1920,7 +1920,7 @@ int intel_crtc_compute_min_cdclk(const struct
> intel_crtc_state *crtc_state) /* According to BSpec, "The CD clock
> frequency must be at least twice * the frequency of the Azalia BCLK." and
> BCLK is 96 MHz by default. */
> - if (crtc_state->has_audio && INTEL_GEN(dev_priv) >= 9)
> + if (INTEL_GEN(dev_priv) >= 9)
Why should cdclk be increased when audio is not being enabled?
> min_cdclk = max(2 * 96000, min_cdclk);
>
> if (min_cdclk > dev_priv->max_cdclk_freq) {
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