On Mon, 19 Dec 2022, Andrzej Hajda <andrzej.hajda@xxxxxxxxx> wrote:
> The helper makes the code more compact and readable.
>
> Signed-off-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/icl_dsi.c | 256 ++++++++-----------------
> 1 file changed, 82 insertions(+), 174 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
> index ae14c794c4bc09..b02ac9d2b1e4a2 100644
> --- a/drivers/gpu/drm/i915/display/icl_dsi.c
> +++ b/drivers/gpu/drm/i915/display/icl_dsi.c
> @@ -207,7 +207,7 @@ void icl_dsi_frame_update(struct intel_crtc_state *crtc_state)
> {
> struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> - u32 tmp, mode_flags;
> + u32 mode_flags;
> enum port port;
>
> mode_flags = crtc_state->mode_flags;
> @@ -224,9 +224,7 @@ void icl_dsi_frame_update(struct intel_crtc_state *crtc_state)
> else
> return;
>
> - tmp = intel_de_read(dev_priv, DSI_CMD_FRMCTL(port));
> - tmp |= DSI_FRAME_UPDATE_REQUEST;
> - intel_de_write(dev_priv, DSI_CMD_FRMCTL(port), tmp);
> + intel_de_rmw(dev_priv, DSI_CMD_FRMCTL(port), 0, DSI_FRAME_UPDATE_REQUEST);
> }
>
> static void dsi_program_swing_and_deemphasis(struct intel_encoder *encoder)
> @@ -234,7 +232,7 @@ static void dsi_program_swing_and_deemphasis(struct intel_encoder *encoder)
> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
> enum phy phy;
> - u32 tmp;
> + u32 tmp, mask, val;
> int lane;
>
> for_each_dsi_phy(phy, intel_dsi->phys) {
> @@ -242,56 +240,35 @@ static void dsi_program_swing_and_deemphasis(struct intel_encoder *encoder)
> * Program voltage swing and pre-emphasis level values as per
> * table in BSPEC under DDI buffer programing
> */
> + mask = SCALING_MODE_SEL_MASK | RTERM_SELECT_MASK;
> + val = SCALING_MODE_SEL(0x2) | TAP2_DISABLE | TAP3_DISABLE |
> + RTERM_SELECT(0x6);
> tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy));
> - tmp &= ~(SCALING_MODE_SEL_MASK | RTERM_SELECT_MASK);
> - tmp |= SCALING_MODE_SEL(0x2);
> - tmp |= TAP2_DISABLE | TAP3_DISABLE;
> - tmp |= RTERM_SELECT(0x6);
> + tmp &= ~mask;
> + tmp |= val;
> intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), tmp);
> + intel_de_rmw(dev_priv, ICL_PORT_TX_DW5_AUX(phy), mask, val);
>
> - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW5_AUX(phy));
> - tmp &= ~(SCALING_MODE_SEL_MASK | RTERM_SELECT_MASK);
> - tmp |= SCALING_MODE_SEL(0x2);
> - tmp |= TAP2_DISABLE | TAP3_DISABLE;
> - tmp |= RTERM_SELECT(0x6);
> - intel_de_write(dev_priv, ICL_PORT_TX_DW5_AUX(phy), tmp);
> -
> + mask = SWING_SEL_LOWER_MASK | SWING_SEL_UPPER_MASK |
> + RCOMP_SCALAR_MASK;
> + val = SWING_SEL_UPPER(0x2) | SWING_SEL_LOWER(0x2) |
> + RCOMP_SCALAR(0x98);
> tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW2_LN(0, phy));
> - tmp &= ~(SWING_SEL_LOWER_MASK | SWING_SEL_UPPER_MASK |
> - RCOMP_SCALAR_MASK);
> - tmp |= SWING_SEL_UPPER(0x2);
> - tmp |= SWING_SEL_LOWER(0x2);
> - tmp |= RCOMP_SCALAR(0x98);
> + tmp &= ~mask;
> + tmp |= val;
> intel_de_write(dev_priv, ICL_PORT_TX_DW2_GRP(phy), tmp);
> + intel_de_rmw(dev_priv, ICL_PORT_TX_DW2_AUX(phy), mask, val);
>
> - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW2_AUX(phy));
> - tmp &= ~(SWING_SEL_LOWER_MASK | SWING_SEL_UPPER_MASK |
> - RCOMP_SCALAR_MASK);
> - tmp |= SWING_SEL_UPPER(0x2);
> - tmp |= SWING_SEL_LOWER(0x2);
> - tmp |= RCOMP_SCALAR(0x98);
> - intel_de_write(dev_priv, ICL_PORT_TX_DW2_AUX(phy), tmp);
> -
> - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW4_AUX(phy));
> - tmp &= ~(POST_CURSOR_1_MASK | POST_CURSOR_2_MASK |
> - CURSOR_COEFF_MASK);
> - tmp |= POST_CURSOR_1(0x0);
> - tmp |= POST_CURSOR_2(0x0);
> - tmp |= CURSOR_COEFF(0x3f);
> - intel_de_write(dev_priv, ICL_PORT_TX_DW4_AUX(phy), tmp);
> -
> - for (lane = 0; lane <= 3; lane++) {
> - /* Bspec: must not use GRP register for write */
> - tmp = intel_de_read(dev_priv,
> - ICL_PORT_TX_DW4_LN(lane, phy));
> - tmp &= ~(POST_CURSOR_1_MASK | POST_CURSOR_2_MASK |
> - CURSOR_COEFF_MASK);
> - tmp |= POST_CURSOR_1(0x0);
> - tmp |= POST_CURSOR_2(0x0);
> - tmp |= CURSOR_COEFF(0x3f);
> - intel_de_write(dev_priv,
> - ICL_PORT_TX_DW4_LN(lane, phy), tmp);
> - }
> + mask = POST_CURSOR_1_MASK | POST_CURSOR_2_MASK |
> + CURSOR_COEFF_MASK;
> + val = POST_CURSOR_1(0x0) | POST_CURSOR_2(0x0) |
> + CURSOR_COEFF(0x3f);
> + intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_AUX(phy), mask, val);
> +
> + /* Bspec: must not use GRP register for write */
> + for (lane = 0; lane <= 3; lane++)
> + intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_LN(lane, phy),
> + mask, val);
> }
> }
>
> @@ -310,7 +287,6 @@ static void configure_dual_link_mode(struct intel_encoder *encoder,
> if (intel_dsi->dual_link == DSI_DUAL_LINK_FRONT_BACK) {
> const struct drm_display_mode *adjusted_mode =
> &pipe_config->hw.adjusted_mode;
> - u32 dss_ctl2;
> u16 hactive = adjusted_mode->crtc_hdisplay;
> u16 dl_buffer_depth;
>
> @@ -323,10 +299,8 @@ static void configure_dual_link_mode(struct intel_encoder *encoder,
>
> dss_ctl1 &= ~LEFT_DL_BUF_TARGET_DEPTH_MASK;
> dss_ctl1 |= LEFT_DL_BUF_TARGET_DEPTH(dl_buffer_depth);
> - dss_ctl2 = intel_de_read(dev_priv, DSS_CTL2);
> - dss_ctl2 &= ~RIGHT_DL_BUF_TARGET_DEPTH_MASK;
> - dss_ctl2 |= RIGHT_DL_BUF_TARGET_DEPTH(dl_buffer_depth);
> - intel_de_write(dev_priv, DSS_CTL2, dss_ctl2);
> + intel_de_rmw(dev_priv, DSS_CTL2, RIGHT_DL_BUF_TARGET_DEPTH_MASK,
> + RIGHT_DL_BUF_TARGET_DEPTH(dl_buffer_depth));
> } else {
> /* Interleave */
> dss_ctl1 |= DUAL_LINK_MODE_INTERLEAVE;
> @@ -412,13 +386,10 @@ static void gen11_dsi_enable_io_power(struct intel_encoder *encoder)
> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
> enum port port;
> - u32 tmp;
>
> - for_each_dsi_port(port, intel_dsi->ports) {
> - tmp = intel_de_read(dev_priv, ICL_DSI_IO_MODECTL(port));
> - tmp |= COMBO_PHY_MODE_DSI;
> - intel_de_write(dev_priv, ICL_DSI_IO_MODECTL(port), tmp);
> - }
> + for_each_dsi_port(port, intel_dsi->ports)
> + intel_de_rmw(dev_priv, ICL_DSI_IO_MODECTL(port),
> + 0, COMBO_PHY_MODE_DSI);
>
> get_dsi_io_power_domains(dev_priv, intel_dsi);
> }
> @@ -444,26 +415,16 @@ static void gen11_dsi_config_phy_lanes_sequence(struct intel_encoder *encoder)
>
> /* Step 4b(i) set loadgen select for transmit and aux lanes */
> for_each_dsi_phy(phy, intel_dsi->phys) {
> - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW4_AUX(phy));
> - tmp &= ~LOADGEN_SELECT;
> - intel_de_write(dev_priv, ICL_PORT_TX_DW4_AUX(phy), tmp);
> - for (lane = 0; lane <= 3; lane++) {
> - tmp = intel_de_read(dev_priv,
> - ICL_PORT_TX_DW4_LN(lane, phy));
> - tmp &= ~LOADGEN_SELECT;
> - if (lane != 2)
> - tmp |= LOADGEN_SELECT;
> - intel_de_write(dev_priv,
> - ICL_PORT_TX_DW4_LN(lane, phy), tmp);
> - }
> + intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_AUX(phy), LOADGEN_SELECT, 0);
> + for (lane = 0; lane <= 3; lane++)
> + intel_de_rmw(dev_priv, ICL_PORT_TX_DW4_LN(lane, phy),
> + LOADGEN_SELECT, lane != 2 ? LOADGEN_SELECT : 0);
> }
>
> /* Step 4b(ii) set latency optimization for transmit and aux lanes */
> for_each_dsi_phy(phy, intel_dsi->phys) {
> - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW2_AUX(phy));
> - tmp &= ~FRC_LATENCY_OPTIM_MASK;
> - tmp |= FRC_LATENCY_OPTIM_VAL(0x5);
> - intel_de_write(dev_priv, ICL_PORT_TX_DW2_AUX(phy), tmp);
> + intel_de_rmw(dev_priv, ICL_PORT_TX_DW2_AUX(phy),
> + FRC_LATENCY_OPTIM_MASK, FRC_LATENCY_OPTIM_VAL(0x5));
> tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW2_LN(0, phy));
> tmp &= ~FRC_LATENCY_OPTIM_MASK;
> tmp |= FRC_LATENCY_OPTIM_VAL(0x5);
> @@ -471,12 +432,8 @@ static void gen11_dsi_config_phy_lanes_sequence(struct intel_encoder *encoder)
>
> /* For EHL, TGL, set latency optimization for PCS_DW1 lanes */
> if (IS_JSL_EHL(dev_priv) || (DISPLAY_VER(dev_priv) >= 12)) {
> - tmp = intel_de_read(dev_priv,
> - ICL_PORT_PCS_DW1_AUX(phy));
> - tmp &= ~LATENCY_OPTIM_MASK;
> - tmp |= LATENCY_OPTIM_VAL(0);
> - intel_de_write(dev_priv, ICL_PORT_PCS_DW1_AUX(phy),
> - tmp);
> + intel_de_rmw(dev_priv, ICL_PORT_PCS_DW1_AUX(phy),
> + LATENCY_OPTIM_MASK, LATENCY_OPTIM_VAL(0));
>
> tmp = intel_de_read(dev_priv,
> ICL_PORT_PCS_DW1_LN(0, phy));
> @@ -501,9 +458,7 @@ static void gen11_dsi_voltage_swing_program_seq(struct intel_encoder *encoder)
> tmp = intel_de_read(dev_priv, ICL_PORT_PCS_DW1_LN(0, phy));
> tmp &= ~COMMON_KEEPER_EN;
> intel_de_write(dev_priv, ICL_PORT_PCS_DW1_GRP(phy), tmp);
> - tmp = intel_de_read(dev_priv, ICL_PORT_PCS_DW1_AUX(phy));
> - tmp &= ~COMMON_KEEPER_EN;
> - intel_de_write(dev_priv, ICL_PORT_PCS_DW1_AUX(phy), tmp);
> + intel_de_rmw(dev_priv, ICL_PORT_PCS_DW1_AUX(phy), COMMON_KEEPER_EN, 0);
> }
>
> /*
> @@ -511,20 +466,15 @@ static void gen11_dsi_voltage_swing_program_seq(struct intel_encoder *encoder)
> * Note: loadgen select program is done
> * as part of lane phy sequence configuration
> */
> - for_each_dsi_phy(phy, intel_dsi->phys) {
> - tmp = intel_de_read(dev_priv, ICL_PORT_CL_DW5(phy));
> - tmp |= SUS_CLOCK_CONFIG;
> - intel_de_write(dev_priv, ICL_PORT_CL_DW5(phy), tmp);
> - }
> + for_each_dsi_phy(phy, intel_dsi->phys)
> + intel_de_rmw(dev_priv, ICL_PORT_CL_DW5(phy), 0, SUS_CLOCK_CONFIG);
>
> /* Clear training enable to change swing values */
> for_each_dsi_phy(phy, intel_dsi->phys) {
> tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy));
> tmp &= ~TX_TRAINING_EN;
> intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), tmp);
> - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW5_AUX(phy));
> - tmp &= ~TX_TRAINING_EN;
> - intel_de_write(dev_priv, ICL_PORT_TX_DW5_AUX(phy), tmp);
> + intel_de_rmw(dev_priv, ICL_PORT_TX_DW5_AUX(phy), TX_TRAINING_EN, 0);
> }
>
> /* Program swing and de-emphasis */
> @@ -535,9 +485,7 @@ static void gen11_dsi_voltage_swing_program_seq(struct intel_encoder *encoder)
> tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN(0, phy));
> tmp |= TX_TRAINING_EN;
> intel_de_write(dev_priv, ICL_PORT_TX_DW5_GRP(phy), tmp);
> - tmp = intel_de_read(dev_priv, ICL_PORT_TX_DW5_AUX(phy));
> - tmp |= TX_TRAINING_EN;
> - intel_de_write(dev_priv, ICL_PORT_TX_DW5_AUX(phy), tmp);
> + intel_de_rmw(dev_priv, ICL_PORT_TX_DW5_AUX(phy), 0, TX_TRAINING_EN);
> }
> }
>
> @@ -545,13 +493,10 @@ static void gen11_dsi_enable_ddi_buffer(struct intel_encoder *encoder)
> {
> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
> - u32 tmp;
> enum port port;
>
> for_each_dsi_port(port, intel_dsi->ports) {
> - tmp = intel_de_read(dev_priv, DDI_BUF_CTL(port));
> - tmp |= DDI_BUF_CTL_ENABLE;
> - intel_de_write(dev_priv, DDI_BUF_CTL(port), tmp);
> + intel_de_rmw(dev_priv, DDI_BUF_CTL(port), 0, DDI_BUF_CTL_ENABLE);
>
> if (wait_for_us(!(intel_de_read(dev_priv, DDI_BUF_CTL(port)) &
> DDI_BUF_IS_IDLE),
> @@ -567,17 +512,13 @@ gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder,
> {
> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
> - u32 tmp;
> enum port port;
> enum phy phy;
>
> /* Program T-INIT master registers */
> - for_each_dsi_port(port, intel_dsi->ports) {
> - tmp = intel_de_read(dev_priv, ICL_DSI_T_INIT_MASTER(port));
> - tmp &= ~DSI_T_INIT_MASTER_MASK;
> - tmp |= intel_dsi->init_count;
> - intel_de_write(dev_priv, ICL_DSI_T_INIT_MASTER(port), tmp);
> - }
> + for_each_dsi_port(port, intel_dsi->ports)
> + intel_de_rmw(dev_priv, ICL_DSI_T_INIT_MASTER(port),
> + DSI_T_INIT_MASTER_MASK, intel_dsi->init_count);
>
> /* Program DPHY clock lanes timings */
> for_each_dsi_port(port, intel_dsi->ports) {
> @@ -608,31 +549,22 @@ gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder,
> if (DISPLAY_VER(dev_priv) == 11) {
> if (afe_clk(encoder, crtc_state) <= 800000) {
> for_each_dsi_port(port, intel_dsi->ports) {
> - tmp = intel_de_read(dev_priv,
> - DPHY_TA_TIMING_PARAM(port));
> - tmp &= ~TA_SURE_MASK;
> - tmp |= TA_SURE_OVERRIDE | TA_SURE(0);
> - intel_de_write(dev_priv,
> - DPHY_TA_TIMING_PARAM(port),
> - tmp);
> + intel_de_rmw(dev_priv, DPHY_TA_TIMING_PARAM(port),
> + TA_SURE_MASK,
> + TA_SURE_OVERRIDE | TA_SURE(0));
>
> /* shadow register inside display core */
> - tmp = intel_de_read(dev_priv,
> - DSI_TA_TIMING_PARAM(port));
> - tmp &= ~TA_SURE_MASK;
> - tmp |= TA_SURE_OVERRIDE | TA_SURE(0);
> - intel_de_write(dev_priv,
> - DSI_TA_TIMING_PARAM(port), tmp);
> + intel_de_rmw(dev_priv, DSI_TA_TIMING_PARAM(port),
> + TA_SURE_MASK,
> + TA_SURE_OVERRIDE | TA_SURE(0));
> }
> }
> }
>
> if (IS_JSL_EHL(dev_priv)) {
> - for_each_dsi_phy(phy, intel_dsi->phys) {
> - tmp = intel_de_read(dev_priv, ICL_DPHY_CHKN(phy));
> - tmp |= ICL_DPHY_CHKN_AFE_OVER_PPI_STRAP;
> - intel_de_write(dev_priv, ICL_DPHY_CHKN(phy), tmp);
> - }
> + for_each_dsi_phy(phy, intel_dsi->phys)
> + intel_de_rmw(dev_priv, ICL_DPHY_CHKN(phy),
> + 0, ICL_DPHY_CHKN_AFE_OVER_PPI_STRAP);
> }
> }
>
> @@ -824,11 +756,8 @@ gen11_dsi_configure_transcoder(struct intel_encoder *encoder,
> if (intel_dsi->dual_link) {
> for_each_dsi_port(port, intel_dsi->ports) {
> dsi_trans = dsi_port_to_transcoder(port);
> - tmp = intel_de_read(dev_priv,
> - TRANS_DDI_FUNC_CTL2(dsi_trans));
> - tmp |= PORT_SYNC_MODE_ENABLE;
> - intel_de_write(dev_priv,
> - TRANS_DDI_FUNC_CTL2(dsi_trans), tmp);
> + intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL2(dsi_trans),
> + 0, PORT_SYNC_MODE_ENABLE);
> }
>
> /* configure stream splitting */
> @@ -1044,13 +973,10 @@ static void gen11_dsi_enable_transcoder(struct intel_encoder *encoder)
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
> enum port port;
> enum transcoder dsi_trans;
> - u32 tmp;
>
> for_each_dsi_port(port, intel_dsi->ports) {
> dsi_trans = dsi_port_to_transcoder(port);
> - tmp = intel_de_read(dev_priv, PIPECONF(dsi_trans));
> - tmp |= PIPECONF_ENABLE;
> - intel_de_write(dev_priv, PIPECONF(dsi_trans), tmp);
> + intel_de_rmw(dev_priv, PIPECONF(dsi_trans), 0, PIPECONF_ENABLE);
>
> /* wait for transcoder to be enabled */
> if (intel_de_wait_for_set(dev_priv, PIPECONF(dsi_trans),
> @@ -1067,7 +993,7 @@ static void gen11_dsi_setup_timeouts(struct intel_encoder *encoder,
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
> enum port port;
> enum transcoder dsi_trans;
> - u32 tmp, hs_tx_timeout, lp_rx_timeout, ta_timeout, divisor, mul;
> + u32 hs_tx_timeout, lp_rx_timeout, ta_timeout, divisor, mul;
>
> /*
> * escape clock count calculation:
> @@ -1087,26 +1013,23 @@ static void gen11_dsi_setup_timeouts(struct intel_encoder *encoder,
> dsi_trans = dsi_port_to_transcoder(port);
>
> /* program hst_tx_timeout */
> - tmp = intel_de_read(dev_priv, DSI_HSTX_TO(dsi_trans));
> - tmp &= ~HSTX_TIMEOUT_VALUE_MASK;
> - tmp |= HSTX_TIMEOUT_VALUE(hs_tx_timeout);
> - intel_de_write(dev_priv, DSI_HSTX_TO(dsi_trans), tmp);
> + intel_de_rmw(dev_priv, DSI_HSTX_TO(dsi_trans),
> + HSTX_TIMEOUT_VALUE_MASK,
> + HSTX_TIMEOUT_VALUE(hs_tx_timeout));
>
> /* FIXME: DSI_CALIB_TO */
>
> /* program lp_rx_host timeout */
> - tmp = intel_de_read(dev_priv, DSI_LPRX_HOST_TO(dsi_trans));
> - tmp &= ~LPRX_TIMEOUT_VALUE_MASK;
> - tmp |= LPRX_TIMEOUT_VALUE(lp_rx_timeout);
> - intel_de_write(dev_priv, DSI_LPRX_HOST_TO(dsi_trans), tmp);
> + intel_de_rmw(dev_priv, DSI_LPRX_HOST_TO(dsi_trans),
> + LPRX_TIMEOUT_VALUE_MASK,
> + LPRX_TIMEOUT_VALUE(lp_rx_timeout));
>
> /* FIXME: DSI_PWAIT_TO */
>
> /* program turn around timeout */
> - tmp = intel_de_read(dev_priv, DSI_TA_TO(dsi_trans));
> - tmp &= ~TA_TIMEOUT_VALUE_MASK;
> - tmp |= TA_TIMEOUT_VALUE(ta_timeout);
> - intel_de_write(dev_priv, DSI_TA_TO(dsi_trans), tmp);
> + intel_de_rmw(dev_priv, DSI_TA_TO(dsi_trans),
> + TA_TIMEOUT_VALUE_MASK,
> + TA_TIMEOUT_VALUE(ta_timeout));
> }
> }
>
> @@ -1310,15 +1233,12 @@ static void gen11_dsi_disable_transcoder(struct intel_encoder *encoder)
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
> enum port port;
> enum transcoder dsi_trans;
> - u32 tmp;
>
> for_each_dsi_port(port, intel_dsi->ports) {
> dsi_trans = dsi_port_to_transcoder(port);
>
> /* disable transcoder */
> - tmp = intel_de_read(dev_priv, PIPECONF(dsi_trans));
> - tmp &= ~PIPECONF_ENABLE;
> - intel_de_write(dev_priv, PIPECONF(dsi_trans), tmp);
> + intel_de_rmw(dev_priv, PIPECONF(dsi_trans), PIPECONF_ENABLE, 0);
>
> /* wait for transcoder to be disabled */
> if (intel_de_wait_for_clear(dev_priv, PIPECONF(dsi_trans),
> @@ -1350,11 +1270,9 @@ static void gen11_dsi_deconfigure_trancoder(struct intel_encoder *encoder)
>
> /* disable periodic update mode */
> if (is_cmd_mode(intel_dsi)) {
> - for_each_dsi_port(port, intel_dsi->ports) {
> - tmp = intel_de_read(dev_priv, DSI_CMD_FRMCTL(port));
> - tmp &= ~DSI_PERIODIC_FRAME_UPDATE_ENABLE;
> - intel_de_write(dev_priv, DSI_CMD_FRMCTL(port), tmp);
> - }
> + for_each_dsi_port(port, intel_dsi->ports)
> + intel_de_rmw(dev_priv, DSI_CMD_FRMCTL(port),
> + DSI_PERIODIC_FRAME_UPDATE_ENABLE, 0);
> }
>
> /* put dsi link in ULPS */
> @@ -1374,20 +1292,16 @@ static void gen11_dsi_deconfigure_trancoder(struct intel_encoder *encoder)
> /* disable ddi function */
> for_each_dsi_port(port, intel_dsi->ports) {
> dsi_trans = dsi_port_to_transcoder(port);
> - tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(dsi_trans));
> - tmp &= ~TRANS_DDI_FUNC_ENABLE;
> - intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(dsi_trans), tmp);
> + intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL(dsi_trans),
> + TRANS_DDI_FUNC_ENABLE, 0);
> }
>
> /* disable port sync mode if dual link */
> if (intel_dsi->dual_link) {
> for_each_dsi_port(port, intel_dsi->ports) {
> dsi_trans = dsi_port_to_transcoder(port);
> - tmp = intel_de_read(dev_priv,
> - TRANS_DDI_FUNC_CTL2(dsi_trans));
> - tmp &= ~PORT_SYNC_MODE_ENABLE;
> - intel_de_write(dev_priv,
> - TRANS_DDI_FUNC_CTL2(dsi_trans), tmp);
> + intel_de_rmw(dev_priv, TRANS_DDI_FUNC_CTL2(dsi_trans),
> + PORT_SYNC_MODE_ENABLE, 0);
> }
> }
> }
> @@ -1396,14 +1310,11 @@ static void gen11_dsi_disable_port(struct intel_encoder *encoder)
> {
> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
> - u32 tmp;
> enum port port;
>
> gen11_dsi_ungate_clocks(encoder);
> for_each_dsi_port(port, intel_dsi->ports) {
> - tmp = intel_de_read(dev_priv, DDI_BUF_CTL(port));
> - tmp &= ~DDI_BUF_CTL_ENABLE;
> - intel_de_write(dev_priv, DDI_BUF_CTL(port), tmp);
> + intel_de_rmw(dev_priv, DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE, 0);
>
> if (wait_for_us((intel_de_read(dev_priv, DDI_BUF_CTL(port)) &
> DDI_BUF_IS_IDLE),
> @@ -1420,7 +1331,6 @@ static void gen11_dsi_disable_io_power(struct intel_encoder *encoder)
> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
> enum port port;
> - u32 tmp;
>
> for_each_dsi_port(port, intel_dsi->ports) {
> intel_wakeref_t wakeref;
> @@ -1434,11 +1344,9 @@ static void gen11_dsi_disable_io_power(struct intel_encoder *encoder)
> }
>
> /* set mode to DDI */
> - for_each_dsi_port(port, intel_dsi->ports) {
> - tmp = intel_de_read(dev_priv, ICL_DSI_IO_MODECTL(port));
> - tmp &= ~COMBO_PHY_MODE_DSI;
> - intel_de_write(dev_priv, ICL_DSI_IO_MODECTL(port), tmp);
> - }
> + for_each_dsi_port(port, intel_dsi->ports)
> + intel_de_rmw(dev_priv, ICL_DSI_IO_MODECTL(port),
> + COMBO_PHY_MODE_DSI, 0);
> }
>
> static void gen11_dsi_disable(struct intel_atomic_state *state,
--
Jani Nikula, Intel Open Source Graphics Center
