From 0eee61521da76e2f827f8f3025d77641461553bd Mon Sep 17 00:00:00 2001 From: Nickey Yang Date: Wed, 11 Dec 2019 21:34:17 +0100 Subject: [PATCH] drm: rockchip: rk3066_hdmi: set edid fifo address Fix edid reading error when edid's block > 2. Signed-off-by: Nickey Yang Signed-off-by: Johan Jonker Signed-off-by: Heiko Stuebner Link: https://patchwork.freedesktop.org/patch/msgid/20191211203417.19448-1-jbx6244@gmail.com --- drivers/gpu/drm/rockchip/rk3066_hdmi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/rockchip/rk3066_hdmi.c b/drivers/gpu/drm/rockchip/rk3066_hdmi.c index 8673e64723e3..fe203d38664e 100644 --- a/drivers/gpu/drm/rockchip/rk3066_hdmi.c +++ b/drivers/gpu/drm/rockchip/rk3066_hdmi.c @@ -641,6 +641,9 @@ static int rk3066_hdmi_i2c_write(struct rk3066_hdmi *hdmi, struct i2c_msg *msgs) if (msgs->addr == DDC_ADDR) hdmi->i2c->ddc_addr = msgs->buf[0]; + /* Set edid fifo first address. */ + hdmi_writeb(hdmi, HDMI_EDID_FIFO_ADDR, 0x00); + /* Set edid word address 0x00/0x80. */ hdmi_writeb(hdmi, HDMI_EDID_WORD_ADDR, hdmi->i2c->ddc_addr); -- 2.11.0