diff options
| author | Suraj Kandpal <suraj.kandpal@intel.com> | 2025-01-03 10:47:05 +0530 |
|---|---|---|
| committer | Suraj Kandpal <suraj.kandpal@intel.com> | 2025-01-06 13:54:52 +0530 |
| commit | 173876aa5d4b8d27b99a4288e2501771fd0c9422 (patch) | |
| tree | e7ff06e35e2dd055bb090c8589cc24cd43fd2d85 /drivers/gpu/drm/i915/display | |
| parent | 2fcde2fbec74c91fb6a724f44cced67a6837b647 (diff) | |
drm/i915/ddi: Optimize mtl_port_buf_ctl_program
A small optimization and cleanup for mtl_port_buf_ctl_program function
which lets use intel_de_rmw instead of a intel_de_read and
intel_de_write.
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250103051705.145161-3-suraj.kandpal@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_ddi.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 654980d7fc3d..483d9e5da586 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -2537,13 +2537,10 @@ static void mtl_port_buf_ctl_program(struct intel_encoder *encoder, struct intel_display *display = to_intel_display(encoder); struct intel_digital_port *dig_port = enc_to_dig_port(encoder); enum port port = encoder->port; - u32 val; + u32 val = 0; - val = intel_de_read(display, XELPDP_PORT_BUF_CTL1(i915, port)); - val &= ~XELPDP_PORT_WIDTH_MASK; val |= XELPDP_PORT_WIDTH(mtl_get_port_width(crtc_state->lane_count)); - val &= ~XELPDP_PORT_BUF_PORT_DATA_WIDTH_MASK; if (intel_dp_is_uhbr(crtc_state)) val |= XELPDP_PORT_BUF_PORT_DATA_40BIT; else @@ -2552,7 +2549,9 @@ static void mtl_port_buf_ctl_program(struct intel_encoder *encoder, if (dig_port->lane_reversal) val |= XELPDP_PORT_REVERSAL; - intel_de_write(display, XELPDP_PORT_BUF_CTL1(display, port), val); + intel_de_rmw(display, XELPDP_PORT_BUF_CTL1(display, port), + XELPDP_PORT_WIDTH_MASK | XELPDP_PORT_BUF_PORT_DATA_WIDTH_MASK, + val); } static void mtl_port_buf_ctl_io_selection(struct intel_encoder *encoder) |