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* patch: kernel: rockchip-dev: Handle more resolutions with HDMI (β) The added patch add more PLL configurations, in order to satisfy more HDMI frequencies requirements. This should allow users to benefit from more resolutions. However, this is fairly untested. I only tested it on my 1080p screen and, yeah, it works but so does the kernel without this patch. Signed-off-by: Miouyouyou (Myy) <myy@miouyouyou.fr> * patch: kernel: rockchip-dev: Handle more resolutions with HDMI (β) Now with proper patches names. Anyway : The added patch add more PLL configurations, in order to satisfy more HDMI frequencies requirements. This should allow users to benefit from more resolutions. However, this is fairly untested. I only tested it on my 1080p screen and, yeah, it works but it also does without this patch. So could anyone test this with the following configurations ? * [ ] A HDMI 4K screen * [ ] A HDMI 1366x768 screen resolution * [ ] A VGA screen with a VGA to HDMI adapter * [ ] A DVI screen with a DVI to HDMI adapter Signed-off-by: Miouyouyou (Myy) <myy@miouyouyou.fr> * Using the patches provided by @Kwiboo for HDMI This provides me way more resolutions, including interlaced modes. I don't see 4K modes, though the screen attached can't do it, so I still don't know if that can help provided 4K modes on mainline kernels. Signed-off-by: Miouyouyou (Myy) <myy@miouyouyou.fr> * Support for 4K screens Using fixes provided by @czak Tested and approved by @czak too ! Signed-off-by: Miouyouyou (Myy) <myy@miouyouyou.fr>
47 lines
1.6 KiB
Diff
47 lines
1.6 KiB
Diff
From 435bdc2bdfd2bd37e96b42c7c972ce271e06d90c Mon Sep 17 00:00:00 2001
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From: Douglas Anderson <dianders@chromium.org>
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Date: Mon, 11 Jul 2016 19:05:36 +0800
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Subject: [PATCH 06/14] drm/rockchip: dw_hdmi: Set cur_ctr to 0 always
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Jitter was improved by lowering the MPLL bandwidth to account for high
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frequency noise in the rk3288 PLL. In each case MPLL bandwidth was
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lowered only enough to get us a comfortable margin. We believe that
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lowering the bandwidth like this is safe given sufficient testing.
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Signed-off-by: Douglas Anderson <dianders@chromium.org>
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Signed-off-by: Yakir Yang <ykk@rock-chips.com>
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---
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drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 16 ++--------------
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1 file changed, 2 insertions(+), 14 deletions(-)
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diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
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index 7f56d8c34..7d7ee5b26 100644
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--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
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+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
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@@ -159,20 +159,8 @@ static const struct dw_hdmi_mpll_config rockchip_mpll_cfg[] = {
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static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = {
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/* pixelclk bpp8 bpp10 bpp12 */
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{
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- 40000000, { 0x0018, 0x0018, 0x0018 },
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- }, {
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- 65000000, { 0x0028, 0x0028, 0x0028 },
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- }, {
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- 66000000, { 0x0038, 0x0038, 0x0038 },
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- }, {
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- 74250000, { 0x0028, 0x0038, 0x0038 },
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- }, {
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- 83500000, { 0x0028, 0x0038, 0x0038 },
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- }, {
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- 146250000, { 0x0038, 0x0038, 0x0038 },
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- }, {
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- 148500000, { 0x0000, 0x0038, 0x0038 },
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- }, {
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+ 600000000, { 0x0000, 0x0000, 0x0000 },
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+ }, {
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~0UL, { 0x0000, 0x0000, 0x0000},
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}
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};
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--
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2.26.2
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