From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johan Jonker Subject: [PATCH] drm: rockchip: rk3066_hdmi: set edid fifo address Date: Wed, 11 Dec 2019 21:34:17 +0100 Message-ID: <20191211203417.19448-1-jbx6244@gmail.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: heiko@sntech.de Cc: hjc@rock-chips.com, airlied@linux.ie, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org List-Id: linux-rockchip.vger.kernel.org From: Nickey Yang Fix edid reading error when edid's block > 2. Signed-off-by: Nickey Yang Signed-off-by: Johan Jonker --- 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 cdb401f42..945126948 100644 --- a/drivers/gpu/drm/rockchip/rk3066_hdmi.c +++ b/drivers/gpu/drm/rockchip/rk3066_hdmi.c @@ -640,6 +640,9 @@ 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