soundwire: cadence: use u32p_replace_bits

FIELD_PREP() does not replace the bits so it is not apt in case where we
modify a register.

Use u32p_replace_bits() instead.

Fixes: 3cf25d63 ("soundwire: cadence: use FIELD_{GET|PREP}")
Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200917120146.1780323-2-vkoul@kernel.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/soundwire/cadence_master.c

@@ -1278,9 +1278,9 @@ static int cdns_port_params(struct sdw_bus *bus,
 
 	dpn_config = cdns_readl(cdns, dpn_config_off);
 
-	dpn_config |= FIELD_PREP(CDNS_DPN_CONFIG_WL, (p_params->bps - 1));
-	dpn_config |= FIELD_PREP(CDNS_DPN_CONFIG_PORT_FLOW, p_params->flow_mode);
-	dpn_config |= FIELD_PREP(CDNS_DPN_CONFIG_PORT_DAT, p_params->data_mode);
+	u32p_replace_bits(&dpn_config, (p_params->bps - 1), CDNS_DPN_CONFIG_WL);
+	u32p_replace_bits(&dpn_config, p_params->flow_mode, CDNS_DPN_CONFIG_PORT_FLOW);
+	u32p_replace_bits(&dpn_config, p_params->data_mode, CDNS_DPN_CONFIG_PORT_DAT);
 
 	cdns_writel(cdns, dpn_config_off, dpn_config);
 
@@ -1316,18 +1316,17 @@ static int cdns_transport_params(struct sdw_bus *bus,
 	}
 
 	dpn_config = cdns_readl(cdns, dpn_config_off);
-
-	dpn_config |= FIELD_PREP(CDNS_DPN_CONFIG_BGC, t_params->blk_grp_ctrl);
-	dpn_config |= FIELD_PREP(CDNS_DPN_CONFIG_BPM, t_params->blk_pkg_mode);
+	u32p_replace_bits(&dpn_config, t_params->blk_grp_ctrl, CDNS_DPN_CONFIG_BGC);
+	u32p_replace_bits(&dpn_config, t_params->blk_pkg_mode, CDNS_DPN_CONFIG_BPM);
 	cdns_writel(cdns, dpn_config_off, dpn_config);
 
-	dpn_offsetctrl |= FIELD_PREP(CDNS_DPN_OFFSET_CTRL_1, t_params->offset1);
-	dpn_offsetctrl |= FIELD_PREP(CDNS_DPN_OFFSET_CTRL_2, t_params->offset2);
+	u32p_replace_bits(&dpn_offsetctrl, t_params->offset1, CDNS_DPN_OFFSET_CTRL_1);
+	u32p_replace_bits(&dpn_offsetctrl, t_params->offset2, CDNS_DPN_OFFSET_CTRL_2);
 	cdns_writel(cdns, dpn_offsetctrl_off,  dpn_offsetctrl);
 
-	dpn_hctrl |= FIELD_PREP(CDNS_DPN_HCTRL_HSTART, t_params->hstart);
-	dpn_hctrl |= FIELD_PREP(CDNS_DPN_HCTRL_HSTOP, t_params->hstop);
-	dpn_hctrl |= FIELD_PREP(CDNS_DPN_HCTRL_LCTRL, t_params->lane_ctrl);
+	u32p_replace_bits(&dpn_hctrl, t_params->hstart, CDNS_DPN_HCTRL_HSTART);
+	u32p_replace_bits(&dpn_hctrl, t_params->hstop, CDNS_DPN_HCTRL_HSTOP);
+	u32p_replace_bits(&dpn_hctrl, t_params->lane_ctrl, CDNS_DPN_HCTRL_LCTRL);
 
 	cdns_writel(cdns, dpn_hctrl_off, dpn_hctrl);
 	cdns_writel(cdns, dpn_samplectrl_off, (t_params->sample_interval - 1));