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AR-1 - Adding support category for distributions AR-4 - Remove Allwinner legacy AR-5 - Drop Udoo family and move Udoo board into newly created imx6 family AR-9 - Rename sunxi-next to sunxi-legacy AR-10 - Rename sunxi-dev to sunxi-current AR-11 - Adding Radxa Rockpi S support AR-13 - Rename rockchip64-default to rockchip64-legacy AR-14 - Add rockchip64-current as mainline source AR-15 - Drop Rockchip 4.19.y NEXT, current become 5.3.y AR-16 - Rename RK3399 default to legacy AR-17 - Rename Odroid XU4 next and default to legacy 4.14.y, add DEV 5.4.y AR-18 - Add Odroid N2 current mainline AR-19 - Move Odroid C1 to meson family AR-20 - Rename mvebu64-default to mvebu64-legacy AR-21 - Rename mvebu-default to mvebu-legacy AR-22 - Rename mvebu-next to mvebu-current AR-23 - Drop meson64 default and next, current becomes former DEV 5.3.y AR-24 - Drop cubox family and move Cubox/Hummingboard boards under imx6 AR-26 - Adjust motd AR-27 - Enabling distribution release status AR-28 - Added new GCC compilers AR-29 - Implementing Ubuntu Eoan AR-30 - Add desktop packages per board or family AR-31 - Remove (Ubuntu/Debian) distribution name from image filename AR-32 - Move arch configs from configuration.sh to separate arm64 and armhf config files AR-33 - Revision numbers for beta builds changed to day_in_the_year AR-34 - Patches support linked patches AR-35 - Break meson64 family into gxbb and gxl AR-36 - Add Nanopineo2 Black AR-38 - Upgrade option from old branches to new one via armbian-config AR-41 - Show full timezone info AR-43 - Merge Odroid N2 to meson64 AR-44 - Enable FORCE_BOOTSCRIPT_UPDATE for all builds
58 lines
2.1 KiB
Text
58 lines
2.1 KiB
Text
From 87c27a1c822a43d8f6d7bc2bb889be2d3d80a100 Mon Sep 17 00:00:00 2001
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From: Jernej Skrabec <jernej.skrabec@siol.net>
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Date: Sun, 3 Sep 2017 11:32:34 +0200
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Subject: [PATCH 079/146] drm: bridge: Add audio workaround for dw_hdmi v1.32a
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Allwinner SoCs with dw hdmi v1.32a seems to have an issue with manual
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setting CTS value. BSP driver sets it to auto mode and that works
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here too.
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Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
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---
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drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 30 +++++++++++++++--------
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1 file changed, 20 insertions(+), 10 deletions(-)
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diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
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index 5971976284bf..4b08840749bd 100644
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--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
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+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
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@@ -424,16 +424,26 @@ static struct i2c_adapter *dw_hdmi_i2c_adapter(struct dw_hdmi *hdmi)
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static void hdmi_set_cts_n(struct dw_hdmi *hdmi, unsigned int cts,
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unsigned int n)
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{
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- /* Must be set/cleared first */
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- hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
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-
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- /* nshift factor = 0 */
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- hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3);
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-
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- hdmi_writeb(hdmi, ((cts >> 16) & HDMI_AUD_CTS3_AUDCTS19_16_MASK) |
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- HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
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- hdmi_writeb(hdmi, (cts >> 8) & 0xff, HDMI_AUD_CTS2);
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- hdmi_writeb(hdmi, cts & 0xff, HDMI_AUD_CTS1);
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+ /*
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+ * Manual CTS setting doesn't work correctly on Allwinner SoCs with
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+ * dw hdmi v1.32a.
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+ */
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+ if (hdmi->version != 0x132a) {
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+ /* Must be set/cleared first */
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+ hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
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+
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+ /* nshift factor = 0 */
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+ hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3);
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+
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+ hdmi_writeb(hdmi,
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+ ((cts >> 16) & HDMI_AUD_CTS3_AUDCTS19_16_MASK) |
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+ HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
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+ hdmi_writeb(hdmi, (cts >> 8) & 0xff, HDMI_AUD_CTS2);
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+ hdmi_writeb(hdmi, cts & 0xff, HDMI_AUD_CTS1);
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+ } else {
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+ /* set automatic CTS calculation */
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+ hdmi_writeb(hdmi, 0x00, HDMI_AUD_CTS3);
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+ }
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hdmi_writeb(hdmi, (n >> 16) & 0x0f, HDMI_AUD_N3);
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hdmi_writeb(hdmi, (n >> 8) & 0xff, HDMI_AUD_N2);
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--
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2.17.1
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