[PATCH v2 1/2] soundwire: cadence: use u32p_replace_bits
Vinod Koul
vkoul at kernel.org
Thu Sep 17 14:01:45 CEST 2020
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: 3cf25d63b1b9 ("soundwire: cadence: use FIELD_{GET|PREP}")
Signed-off-by: Vinod Koul <vkoul at kernel.org>
---
drivers/soundwire/cadence_master.c | 21 ++++++++++-----------
1 file changed, 10 insertions(+), 11 deletions(-)
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index f1efe5beead6..19d445ef6764 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/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));
--
2.26.2
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