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drm/exynos: implement display-mode-check callback in mixer driver
This patch adds the implementation of check_timing callback in the mixer driver. Based on the mixer version, correct set of restrictions will be exposed by the mixer driver. A resolution will be acceptable only if passes the criteria set by mixer and hdmi IPs. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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@ -818,6 +818,29 @@ static void mixer_win_disable(void *ctx, int win)
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mixer_ctx->win_data[win].enabled = false;
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}
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int mixer_check_timing(void *ctx, struct fb_videomode *timing)
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{
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struct mixer_context *mixer_ctx = ctx;
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u32 w, h;
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w = timing->xres;
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h = timing->yres;
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DRM_DEBUG_KMS("%s : xres=%d, yres=%d, refresh=%d, intl=%d\n",
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__func__, timing->xres, timing->yres,
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timing->refresh, (timing->vmode &
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FB_VMODE_INTERLACED) ? true : false);
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if (mixer_ctx->mxr_ver == MXR_VER_0_0_0_16)
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return 0;
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if ((w >= 464 && w <= 720 && h >= 261 && h <= 576) ||
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(w >= 1024 && w <= 1280 && h >= 576 && h <= 720) ||
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(w >= 1664 && w <= 1920 && h >= 936 && h <= 1080))
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return 0;
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return -EINVAL;
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}
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static void mixer_wait_for_vblank(void *ctx)
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{
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struct mixer_context *mixer_ctx = ctx;
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@ -955,6 +978,9 @@ static struct exynos_mixer_ops mixer_ops = {
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.win_mode_set = mixer_win_mode_set,
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.win_commit = mixer_win_commit,
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.win_disable = mixer_win_disable,
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/* display */
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.check_timing = mixer_check_timing,
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};
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static irqreturn_t mixer_irq_handler(int irq, void *arg)
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