From: Yannick Fertré Date: Fri, 10 May 2019 15:03:20 +0000 (+0200) Subject: drm/stm: ltdc: remove clk_round_rate comment X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=fd6905fca4f013463026ca1a07fee463fbf0d974;p=android-x86%2Fkernel.git drm/stm: ltdc: remove clk_round_rate comment Clk_round_rate returns rounded clock without changing the hardware in any way. This function couldn't replace set_rate/get_rate calls. Todo comment has been removed & a new log inserted. Signed-off-by: Yannick Fertré Signed-off-by: Benjamin Gaignard Link: https://patchwork.freedesktop.org/patch/msgid/1557500600-19771-1-git-send-email-yannick.fertre@st.com --- diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 14eb8c40953b..ae2aaf2a62ee 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -507,20 +507,16 @@ static bool ltdc_crtc_mode_fixup(struct drm_crtc *crtc, struct ltdc_device *ldev = crtc_to_ltdc(crtc); int rate = mode->clock * 1000; - /* - * TODO clk_round_rate() does not work yet. When ready, it can - * be used instead of clk_set_rate() then clk_get_rate(). - */ - - clk_disable(ldev->pixel_clk); if (clk_set_rate(ldev->pixel_clk, rate) < 0) { DRM_ERROR("Cannot set rate (%dHz) for pixel clk\n", rate); return false; } - clk_enable(ldev->pixel_clk); adjusted_mode->clock = clk_get_rate(ldev->pixel_clk) / 1000; + DRM_DEBUG_DRIVER("requested clock %dkHz, adjusted clock %dkHz\n", + mode->clock, adjusted_mode->clock); + return true; }