github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-08 14:42:37 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

video: rockchip: hdmi: 3368: enable detect phy pll lock status

Browse Source 
Phy PLL may be unlock under electro-static test. The higher the
electro-static voltage, the more likely the PLL will be lost.
If PLL is unlock and irq is triggered, we will reset registers
to make it lock on correct frequency.

Change-Id: I86eaa660e837e8c2e59c8e39e3ce083bb89c1bac
Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>
This commit is contained in:
Zheng Yang 2015-09-08 18:06:50 +08:00
parent 83e9a56bb1
commit 36bb74a56e
1 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/video/rockchip/hdmi/rockchip-hdmiv2/rockchip_hdmiv2_hw.c
View File

@ -317,6 +317,7 @@ static const struct phy_mpll_config_tab *get_phy_mpll_tab(
static void rockchip_hdmiv2_powerdown(struct hdmi_dev *hdmi_dev)
{
hdmi_msk_reg(hdmi_dev, PHY_MASK, m_PHY_LOCK, v_PHY_LOCK(1));
hdmi_msk_reg(hdmi_dev, PHY_CONF0,
m_PDDQ_SIG | m_TXPWRON_SIG |
m_ENHPD_RXSENSE_SIG | m_SVSRET_SIG,
@ -409,6 +410,7 @@ static int rockchip_hdmiv2_config_phy(struct hdmi_dev *hdmi_dev)
hdmi_msk_reg(hdmi_dev, PHY_I2CM_DIV,
m_PHY_I2CM_FAST_STD, v_PHY_I2CM_FAST_STD(0));
hdmi_msk_reg(hdmi_dev, PHY_MASK, m_PHY_LOCK, v_PHY_LOCK(1));
/* power off PHY */
/* hdmi_writel(hdmi_dev, PHY_CONF0, 0x1e); */
hdmi_msk_reg(hdmi_dev, PHY_CONF0,
@ -514,7 +516,7 @@ static int rockchip_hdmiv2_config_phy(struct hdmi_dev *hdmi_dev)
(stat & m_PCLK_ON) >> 6, (stat & m_TMDSCLK_ON) >> 5);
return -1;
}
hdmi_msk_reg(hdmi_dev, PHY_MASK, m_PHY_LOCK, v_PHY_LOCK(0));
return 0;
}
@ -1330,6 +1332,8 @@ static int hdmi_dev_config_video(struct hdmi *hdmi, struct hdmi_video *vpara)
if (!hdmi->uboot)
rockchip_hdmiv2_config_phy(hdmi_dev);
else
hdmi_msk_reg(hdmi_dev, PHY_MASK, m_PHY_LOCK, v_PHY_LOCK(0));
return 0;
}
@ -1702,7 +1706,7 @@ void rockchip_hdmiv2_dev_initial(struct hdmi_dev *hdmi_dev)
hdmi_writel(hdmi_dev, IH_MUTE_FC_STAT1, 0xff);
hdmi_writel(hdmi_dev, IH_MUTE_FC_STAT2, 0xff);
hdmi_writel(hdmi_dev, IH_MUTE_AS_STAT0, 0xff);
hdmi_writel(hdmi_dev, IH_MUTE_PHY_STAT0, 0xfe);
hdmi_writel(hdmi_dev, IH_MUTE_PHY_STAT0, 0xfc);
hdmi_writel(hdmi_dev, IH_MUTE_I2CM_STAT0, 0xff);
hdmi_writel(hdmi_dev, IH_MUTE_CEC_STAT0, 0xff);
hdmi_writel(hdmi_dev, IH_MUTE_VP_STAT0, 0xff);
@ -1744,6 +1748,11 @@ irqreturn_t rockchip_hdmiv2_dev_irq(int irq, void *priv)
hdmi_writel(hdmi_dev, IH_VP_STAT0, vp_stat0);
if (phy_int0 || phy_int) {
if ((phy_int0 & m_PHY_LOCK) &&
(phy_pol & m_PHY_LOCK) == 0) {
pr_info("hdmi phy pll unlock\n");
hdmi_submit_work(hdmi, HDMI_SET_VIDEO, 0, 0);
}
phy_pol = (phy_int0 & (~phy_status)) | ((~phy_int0) & phy_pol);
hdmi_writel(hdmi_dev, PHY_POL0, phy_pol);
hdmi_writel(hdmi_dev, IH_PHY_STAT0, phy_int);