From: Thierry Reding Date: Wed, 16 Apr 2014 08:47:36 +0000 (+0200) Subject: drm/tegra: hdmi - Disable LVDS mode X-Git-Tag: next-20140428~43^2~13 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=02f06d086fd849b990307850128325c4d4f51eb4;p=karo-tx-linux.git drm/tegra: hdmi - Disable LVDS mode Disable LVDS mode according to register documentation. It seems like this has no effect on the operation of HDMI, but it's probably a good idea to do this anyway. Signed-off-by: Thierry Reding --- diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index 4116b08acabb..9cba9bf14079 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -846,9 +846,13 @@ static int tegra_output_hdmi_enable(struct tegra_output *output) tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(0)); tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_SEQ_INST(8)); - value = 0x1c800; + value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_SOR_CSTM); value &= ~SOR_CSTM_ROTCLK(~0); value |= SOR_CSTM_ROTCLK(2); + value |= SOR_CSTM_PLLDIV; + value &= ~SOR_CSTM_LVDS_ENABLE; + value &= ~SOR_CSTM_MODE_MASK; + value |= SOR_CSTM_MODE_TMDS; tegra_hdmi_writel(hdmi, value, HDMI_NV_PDISP_SOR_CSTM); /* start SOR */ diff --git a/drivers/gpu/drm/tegra/hdmi.h b/drivers/gpu/drm/tegra/hdmi.h index 0aebc485f7fa..919a19df4e1b 100644 --- a/drivers/gpu/drm/tegra/hdmi.h +++ b/drivers/gpu/drm/tegra/hdmi.h @@ -190,6 +190,11 @@ #define HDMI_NV_PDISP_SOR_CSTM 0x5a #define SOR_CSTM_ROTCLK(x) (((x) & 0xf) << 24) +#define SOR_CSTM_PLLDIV (1 << 21) +#define SOR_CSTM_LVDS_ENABLE (1 << 16) +#define SOR_CSTM_MODE_LVDS (0 << 12) +#define SOR_CSTM_MODE_TMDS (1 << 12) +#define SOR_CSTM_MODE_MASK (3 << 12) #define HDMI_NV_PDISP_SOR_LVDS 0x5b #define HDMI_NV_PDISP_SOR_CRCA 0x5c