diff options
| author | Uma Shankar <uma.shankar@intel.com> | 2020-12-01 02:17:33 +0530 |
|---|---|---|
| committer | Uma Shankar <uma.shankar@intel.com> | 2020-12-02 01:29:52 +0530 |
| commit | c5044aee4039671d72ddcfdb38ea0a3b32effab4 (patch) | |
| tree | 18fbcfac21448ba98da67e2ac3f9bd245625ca5a /drivers/gpu/drm/i915/display/intel_lspcon.c | |
| parent | 84ab44b757d59e50584c0ca86890dd139f9daed0 (diff) | |
drm/i915/display: Enable HDR for Parade based lspcon
Enable HDR for LSPCON based on Parade along with MCA.
v2: Added a helper for status reg as suggested by Ville.
v3: Removed a redundant variable, added Ville's RB.
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Vipin Anand <vipin.anand@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201130204738.2443-11-uma.shankar@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_lspcon.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_lspcon.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c index cb768a1ae4c9..592c19deba00 100644 --- a/drivers/gpu/drm/i915/display/intel_lspcon.c +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c @@ -36,6 +36,7 @@ #define LSPCON_VENDOR_MCA_OUI 0x0060AD #define DPCD_MCA_LSPCON_HDR_STATUS 0x70003 +#define DPCD_PARADE_LSPCON_HDR_STATUS 0x00511 /* AUX addresses to write MCA AVI IF */ #define LSPCON_MCA_AVI_IF_WRITE_OFFSET 0x5C0 @@ -106,6 +107,14 @@ static bool lspcon_detect_vendor(struct intel_lspcon *lspcon) return true; } +static u32 get_hdr_status_reg(struct intel_lspcon *lspcon) +{ + if (lspcon->vendor == LSPCON_VENDOR_MCA) + return DPCD_MCA_LSPCON_HDR_STATUS; + else + return DPCD_PARADE_LSPCON_HDR_STATUS; +} + void lspcon_detect_hdr_capability(struct intel_lspcon *lspcon) { struct intel_digital_port *dig_port = @@ -115,12 +124,8 @@ void lspcon_detect_hdr_capability(struct intel_lspcon *lspcon) u8 hdr_caps; int ret; - /* Enable HDR for MCA based LSPCON devices */ - if (lspcon->vendor == LSPCON_VENDOR_MCA) - ret = drm_dp_dpcd_read(&dp->aux, DPCD_MCA_LSPCON_HDR_STATUS, - &hdr_caps, 1); - else - return; + ret = drm_dp_dpcd_read(&dp->aux, get_hdr_status_reg(lspcon), + &hdr_caps, 1); if (ret < 0) { drm_dbg_kms(dev, "HDR capability detection failed\n"); |