[PATCH v2 0/9] soundwire: use FIELD_{GET|PREP} in subsystem
Use the FIELD_{GET|PREP} in soundwire subsytem and remove the local SDW_REG_SHIFT(). This makes code IMO look much neater
Tested this on db845c board
Changes in v2: - fold in fixes provided by Bard and Pierre - Use GENMAS_ULL for addr - rebase to next and fold in new intel change
Vinod Koul (9): soundwire: define and use addr bit masks soundwire: bus: use FIELD_GET() soundwire: slave: use SDW_DISCO_LINK_ID() soundwire: stream: use FIELD_{GET|PREP} soundwire: qcom : use FIELD_{GET|PREP} soundwire: cadence: use FIELD_{GET|PREP} soundwire: intel: use FIELD_{GET|PREP} soundwire: intel_init: use FIELD_{GET|PREP} soundwire: remove SDW_REG_SHIFT()
drivers/soundwire/bus.c | 6 +-- drivers/soundwire/cadence_master.c | 61 +++++++++++-------------- drivers/soundwire/intel.c | 52 ++++++++------------- drivers/soundwire/intel_init.c | 2 +- drivers/soundwire/qcom.c | 22 +++------ drivers/soundwire/slave.c | 2 +- drivers/soundwire/stream.c | 13 ++---- include/linux/soundwire/sdw.h | 21 ++++++--- include/linux/soundwire/sdw_registers.h | 7 --- 9 files changed, 75 insertions(+), 111 deletions(-)
Soundwire addr is a 52bit value encoding link, version, unique id, mfg id, part id and class id. Define bit masks for these and use FIELD_GET() to extract these fields.
Signed-off-by: Vinod Koul vkoul@kernel.org --- include/linux/soundwire/sdw.h | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-)
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index 78f52cdeb2c9..1e9010c139f0 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -5,6 +5,7 @@ #define __SOUNDWIRE_H
#include <linux/mod_devicetable.h> +#include <linux/bitfield.h>
struct sdw_bus; struct sdw_slave; @@ -456,13 +457,19 @@ struct sdw_slave_id { * * The MIPI DisCo for SoundWire defines in addition the link_id as bits 51:48 */ - -#define SDW_DISCO_LINK_ID(adr) (((adr) >> 48) & GENMASK(3, 0)) -#define SDW_VERSION(adr) (((adr) >> 44) & GENMASK(3, 0)) -#define SDW_UNIQUE_ID(adr) (((adr) >> 40) & GENMASK(3, 0)) -#define SDW_MFG_ID(adr) (((adr) >> 24) & GENMASK(15, 0)) -#define SDW_PART_ID(adr) (((adr) >> 8) & GENMASK(15, 0)) -#define SDW_CLASS_ID(adr) ((adr) & GENMASK(7, 0)) +#define SDW_DISCO_LINK_ID_MASK GENMASK_ULL(51, 48) +#define SDW_VERSION_MASK GENMASK_ULL(47, 44) +#define SDW_UNIQUE_ID_MASK GENMASK_ULL(43, 40) +#define SDW_MFG_ID_MASK GENMASK_ULL(39, 24) +#define SDW_PART_ID_MASK GENMASK_ULL(23, 8) +#define SDW_CLASS_ID_MASK GENMASK_ULL(7, 0) + +#define SDW_DISCO_LINK_ID(addr) FIELD_GET(SDW_DISCO_LINK_ID_MASK, addr) +#define SDW_VERSION(addr) FIELD_GET(SDW_VERSION_MASK, addr) +#define SDW_UNIQUE_ID(addr) FIELD_GET(SDW_UNIQUE_ID_MASK, addr) +#define SDW_MFG_ID(addr) FIELD_GET(SDW_MFG_ID_MASK, addr) +#define SDW_PART_ID(addr) FIELD_GET(SDW_PART_ID_MASK, addr) +#define SDW_CLASS_ID(addr) FIELD_GET(SDW_CLASS_ID_MASK, addr)
/** * struct sdw_slave_intr_status - Slave interrupt status
use FIELD_GET() in bus code to extract field values instead of open coding masks and shift operations.
Signed-off-by: Vinod Koul vkoul@kernel.org --- drivers/soundwire/bus.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index e6e0fb9a81b4..d808f0256ba0 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -347,8 +347,8 @@ int sdw_fill_msg(struct sdw_msg *msg, struct sdw_slave *slave, return -EINVAL; }
- msg->addr_page1 = (addr >> SDW_REG_SHIFT(SDW_SCP_ADDRPAGE1_MASK)); - msg->addr_page2 = (addr >> SDW_REG_SHIFT(SDW_SCP_ADDRPAGE2_MASK)); + msg->addr_page1 = FIELD_GET(SDW_SCP_ADDRPAGE1_MASK, addr); + msg->addr_page2 = FIELD_GET(SDW_SCP_ADDRPAGE2_MASK, addr); msg->addr |= BIT(15); msg->page = true;
@@ -1420,7 +1420,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave) port = buf & SDW_SCP_INT1_PORT0_3;
/* To get port number corresponding to bits, shift it */ - port = port >> SDW_REG_SHIFT(SDW_SCP_INT1_PORT0_3); + port = FIELD_GET(SDW_SCP_INT1_PORT0_3, port); for_each_set_bit(bit, &port, 8) { sdw_handle_port_interrupt(slave, bit, &port_status[bit]);
use SDW_DISCO_LINK_ID() in slave code to extract field values instead of open coding masks and shift operations to extract link_id
Signed-off-by: Vinod Koul vkoul@kernel.org --- drivers/soundwire/slave.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c index a762ee24e6fa..2191dd6e7aa4 100644 --- a/drivers/soundwire/slave.c +++ b/drivers/soundwire/slave.c @@ -106,7 +106,7 @@ static bool find_slave(struct sdw_bus *bus, }
/* Extract link id from ADR, Bit 51 to 48 (included) */ - link_id = (addr >> 48) & GENMASK(3, 0); + link_id = SDW_DISCO_LINK_ID(addr);
/* Check for link_id match */ if (link_id != bus->link_id)
use FIELD_{GET|PREP} in stream code to get/set field values instead of open coding masks and shift operations.
Signed-off-by: Vinod Koul vkoul@kernel.org --- drivers/soundwire/stream.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index e4cf484f5905..afb95febb0d3 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -100,9 +100,7 @@ static int _sdw_program_slave_port_params(struct sdw_bus *bus, return ret;
/* Program DPN_SampleCtrl2 register */ - wbuf = (t_params->sample_interval - 1); - wbuf &= SDW_DPN_SAMPLECTRL_HIGH; - wbuf >>= SDW_REG_SHIFT(SDW_DPN_SAMPLECTRL_HIGH); + wbuf = FIELD_GET(SDW_DPN_SAMPLECTRL_HIGH, t_params->sample_interval - 1);
ret = sdw_write(slave, addr3, wbuf); if (ret < 0) { @@ -111,9 +109,8 @@ static int _sdw_program_slave_port_params(struct sdw_bus *bus, }
/* Program DPN_HCtrl register */ - wbuf = t_params->hstart; - wbuf <<= SDW_REG_SHIFT(SDW_DPN_HCTRL_HSTART); - wbuf |= t_params->hstop; + wbuf = FIELD_PREP(SDW_DPN_HCTRL_HSTART, t_params->hstart); + wbuf |= FIELD_PREP(SDW_DPN_HCTRL_HSTOP, t_params->hstop);
ret = sdw_write(slave, addr4, wbuf); if (ret < 0) @@ -157,8 +154,8 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus, }
/* Program DPN_PortCtrl register */ - wbuf = p_params->data_mode << SDW_REG_SHIFT(SDW_DPN_PORTCTRL_DATAMODE); - wbuf |= p_params->flow_mode; + wbuf = FIELD_PREP(SDW_DPN_PORTCTRL_DATAMODE, p_params->data_mode); + wbuf |= FIELD_PREP(SDW_DPN_PORTCTRL_FLOWMODE, p_params->flow_mode);
ret = sdw_update(s_rt->slave, addr1, 0xF, wbuf); if (ret < 0) {
use FIELD_{GET|PREP} in qcom driver to get/set field values instead of open coding masks and shift operations. Also, remove now unused register shift defines
Signed-off-by: Vinod Koul vkoul@kernel.org --- drivers/soundwire/qcom.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-)
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index 915c2cf0c274..dafa3f3dd1ab 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -43,13 +43,10 @@ #define SWRM_CMD_FIFO_RD_FIFO_ADDR 0x318 #define SWRM_ENUMERATOR_CFG_ADDR 0x500 #define SWRM_MCP_FRAME_CTRL_BANK_ADDR(m) (0x101C + 0x40 * (m)) -#define SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT 3 #define SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK GENMASK(2, 0) #define SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK GENMASK(7, 3) -#define SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT 0 #define SWRM_MCP_CFG_ADDR 0x1048 #define SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_BMSK GENMASK(21, 17) -#define SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_SHFT 0x11 #define SWRM_DEF_CMD_NO_PINGS 0x1f #define SWRM_MCP_STATUS 0x104C #define SWRM_MCP_STATUS_BANK_NUM_MASK BIT(0) @@ -284,8 +281,8 @@ static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl) u32 val;
/* Clear Rows and Cols */ - val = (SWRM_MAX_ROW_VAL << SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT | - SWRM_MIN_COL_VAL << SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT); + val = FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK, SWRM_MAX_ROW_VAL); + val |= FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK, SWRM_MIN_COL_VAL);
ctrl->reg_write(ctrl, SWRM_MCP_FRAME_CTRL_BANK_ADDR(0), val);
@@ -298,9 +295,7 @@ static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl)
/* Configure No pings */ ctrl->reg_read(ctrl, SWRM_MCP_CFG_ADDR, &val); - val &= ~SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_BMSK; - val |= (SWRM_DEF_CMD_NO_PINGS << - SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_SHFT); + val |= FIELD_PREP(SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_BMSK, SWRM_DEF_CMD_NO_PINGS); ctrl->reg_write(ctrl, SWRM_MCP_CFG_ADDR, val);
/* Configure number of retries of a read/write cmd */ @@ -355,11 +350,8 @@ static int qcom_swrm_pre_bank_switch(struct sdw_bus *bus)
ctrl->reg_read(ctrl, reg, &val);
- val &= ~SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK; - val &= ~SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK; - - val |= (SWRM_MAX_ROW_VAL << SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_SHFT | - SWRM_MAX_COL_VAL << SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_SHFT); + val |= FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK, SWRM_MAX_COL_VAL); + val |= FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK, SWRM_MAX_ROW_VAL);
return ctrl->reg_write(ctrl, reg, val); } @@ -693,8 +685,8 @@ static int qcom_swrm_get_port_config(struct qcom_swrm_ctrl *ctrl)
ctrl->reg_read(ctrl, SWRM_COMP_PARAMS, &val);
- ctrl->num_dout_ports = val & SWRM_COMP_PARAMS_DOUT_PORTS_MASK; - ctrl->num_din_ports = (val & SWRM_COMP_PARAMS_DIN_PORTS_MASK) >> 5; + ctrl->num_dout_ports = FIELD_GET(SWRM_COMP_PARAMS_DOUT_PORTS_MASK, val); + ctrl->num_din_ports = FIELD_GET(SWRM_COMP_PARAMS_DIN_PORTS_MASK, val);
ret = of_property_read_u32(np, "qcom,din-ports", &val); if (ret)
use FIELD_{GET|PREP} in cadence driver to get/set field values instead of open coding masks and shift operations.
Signed-off-by: Vinod Koul vkoul@kernel.org --- drivers/soundwire/cadence_master.c | 61 +++++++++++++----------------- 1 file changed, 26 insertions(+), 35 deletions(-)
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c index 24eafe0aa1c3..ecf503fb23e1 100644 --- a/drivers/soundwire/cadence_master.c +++ b/drivers/soundwire/cadence_master.c @@ -54,7 +54,7 @@ MODULE_PARM_DESC(cdns_mcp_int_mask, "Cadence MCP IntMask"); #define CDNS_MCP_FRAME_SHAPE 0x10 #define CDNS_MCP_FRAME_SHAPE_INIT 0x14 #define CDNS_MCP_FRAME_SHAPE_COL_MASK GENMASK(2, 0) -#define CDNS_MCP_FRAME_SHAPE_ROW_OFFSET 3 +#define CDNS_MCP_FRAME_SHAPE_ROW_MASK GENMASK(7, 3)
#define CDNS_MCP_CONFIG_UPDATE 0x18 #define CDNS_MCP_CONFIG_UPDATE_BIT BIT(0) @@ -129,8 +129,7 @@ MODULE_PARM_DESC(cdns_mcp_int_mask, "Cadence MCP IntMask"); #define CDNS_MCP_CMD_SSP_TAG BIT(31) #define CDNS_MCP_CMD_COMMAND GENMASK(30, 28) #define CDNS_MCP_CMD_DEV_ADDR GENMASK(27, 24) -#define CDNS_MCP_CMD_REG_ADDR_H GENMASK(23, 16) -#define CDNS_MCP_CMD_REG_ADDR_L GENMASK(15, 8) +#define CDNS_MCP_CMD_REG_ADDR GENMASK(23, 8) #define CDNS_MCP_CMD_REG_DATA GENMASK(7, 0)
#define CDNS_MCP_CMD_READ 2 @@ -417,8 +416,7 @@ cdns_fill_msg_resp(struct sdw_cdns *cdns,
/* fill response */ for (i = 0; i < count; i++) - msg->buf[i + offset] = cdns->response_buf[i] >> - SDW_REG_SHIFT(CDNS_MCP_RESP_RDATA); + msg->buf[i + offset] = FIELD_GET(CDNS_MCP_RESP_RDATA, cdns->response_buf[i]);
return SDW_CMD_OK; } @@ -441,14 +439,15 @@ _cdns_xfer_msg(struct sdw_cdns *cdns, struct sdw_msg *msg, int cmd, addr = msg->addr;
for (i = 0; i < count; i++) { - data = msg->dev_num << SDW_REG_SHIFT(CDNS_MCP_CMD_DEV_ADDR); - data |= cmd << SDW_REG_SHIFT(CDNS_MCP_CMD_COMMAND); - data |= addr++ << SDW_REG_SHIFT(CDNS_MCP_CMD_REG_ADDR_L); + data = FIELD_PREP(CDNS_MCP_CMD_DEV_ADDR, msg->dev_num); + data |= FIELD_PREP(CDNS_MCP_CMD_COMMAND, cmd); + data |= FIELD_PREP(CDNS_MCP_CMD_REG_ADDR, addr); + addr++;
if (msg->flags == SDW_MSG_FLAG_WRITE) data |= msg->buf[i + offset];
- data |= msg->ssp_sync << SDW_REG_SHIFT(CDNS_MCP_CMD_SSP_TAG); + data |= FIELD_PREP(CDNS_MCP_CMD_SSP_TAG, msg->ssp_sync); cdns_writel(cdns, base, data); base += CDNS_MCP_CMD_WORD_LEN; } @@ -483,12 +482,12 @@ cdns_program_scp_addr(struct sdw_cdns *cdns, struct sdw_msg *msg) cdns->msg_count = CDNS_SCP_RX_FIFOLEVEL; }
- data[0] = msg->dev_num << SDW_REG_SHIFT(CDNS_MCP_CMD_DEV_ADDR); - data[0] |= 0x3 << SDW_REG_SHIFT(CDNS_MCP_CMD_COMMAND); + data[0] = FIELD_PREP(CDNS_MCP_CMD_DEV_ADDR, msg->dev_num); + data[0] |= FIELD_PREP(CDNS_MCP_CMD_COMMAND, 0x3); data[1] = data[0];
- data[0] |= SDW_SCP_ADDRPAGE1 << SDW_REG_SHIFT(CDNS_MCP_CMD_REG_ADDR_L); - data[1] |= SDW_SCP_ADDRPAGE2 << SDW_REG_SHIFT(CDNS_MCP_CMD_REG_ADDR_L); + data[0] |= FIELD_PREP(CDNS_MCP_CMD_REG_ADDR, SDW_SCP_ADDRPAGE1); + data[1] |= FIELD_PREP(CDNS_MCP_CMD_REG_ADDR, SDW_SCP_ADDRPAGE2);
data[0] |= msg->addr_page1; data[1] |= msg->addr_page2; @@ -1041,9 +1040,10 @@ static u32 cdns_set_initial_frame_shape(int n_rows, int n_cols) int r;
r = sdw_find_row_index(n_rows); - c = sdw_find_col_index(n_cols) & CDNS_MCP_FRAME_SHAPE_COL_MASK; + c = sdw_find_col_index(n_cols);
- val = (r << CDNS_MCP_FRAME_SHAPE_ROW_OFFSET) | c; + val = FIELD_PREP(CDNS_MCP_FRAME_SHAPE_ROW_MASK, r); + val |= FIELD_PREP(CDNS_MCP_FRAME_SHAPE_COL_MASK, c);
return val; } @@ -1170,12 +1170,9 @@ static int cdns_port_params(struct sdw_bus *bus,
dpn_config = cdns_readl(cdns, dpn_config_off);
- dpn_config |= ((p_params->bps - 1) << - SDW_REG_SHIFT(CDNS_DPN_CONFIG_WL)); - dpn_config |= (p_params->flow_mode << - SDW_REG_SHIFT(CDNS_DPN_CONFIG_PORT_FLOW)); - dpn_config |= (p_params->data_mode << - SDW_REG_SHIFT(CDNS_DPN_CONFIG_PORT_DAT)); + 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);
cdns_writel(cdns, dpn_config_off, dpn_config);
@@ -1212,23 +1209,17 @@ static int cdns_transport_params(struct sdw_bus *bus,
dpn_config = cdns_readl(cdns, dpn_config_off);
- dpn_config |= (t_params->blk_grp_ctrl << - SDW_REG_SHIFT(CDNS_DPN_CONFIG_BGC)); - dpn_config |= (t_params->blk_pkg_mode << - SDW_REG_SHIFT(CDNS_DPN_CONFIG_BPM)); + 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); cdns_writel(cdns, dpn_config_off, dpn_config);
- dpn_offsetctrl |= (t_params->offset1 << - SDW_REG_SHIFT(CDNS_DPN_OFFSET_CTRL_1)); - dpn_offsetctrl |= (t_params->offset2 << - SDW_REG_SHIFT(CDNS_DPN_OFFSET_CTRL_2)); + dpn_offsetctrl |= FIELD_PREP(CDNS_DPN_OFFSET_CTRL_1, t_params->offset1); + dpn_offsetctrl |= FIELD_PREP(CDNS_DPN_OFFSET_CTRL_2, t_params->offset2); cdns_writel(cdns, dpn_offsetctrl_off, dpn_offsetctrl);
- dpn_hctrl |= (t_params->hstart << - SDW_REG_SHIFT(CDNS_DPN_HCTRL_HSTART)); - dpn_hctrl |= (t_params->hstop << SDW_REG_SHIFT(CDNS_DPN_HCTRL_HSTOP)); - dpn_hctrl |= (t_params->lane_ctrl << - SDW_REG_SHIFT(CDNS_DPN_HCTRL_LCTRL)); + 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);
cdns_writel(cdns, dpn_hctrl_off, dpn_hctrl); cdns_writel(cdns, dpn_samplectrl_off, (t_params->sample_interval - 1)); @@ -1534,7 +1525,7 @@ void sdw_cdns_config_stream(struct sdw_cdns *cdns,
val = pdi->num; val |= CDNS_PDI_CONFIG_SOFT_RESET; - val |= ((1 << ch) - 1) << SDW_REG_SHIFT(CDNS_PDI_CONFIG_CHANNEL); + val |= FIELD_PREP(CDNS_PDI_CONFIG_CHANNEL, (1 << ch) - 1); cdns_writel(cdns, CDNS_PDI_CONFIG(pdi->num), val); } EXPORT_SYMBOL(sdw_cdns_config_stream);
use FIELD_{GET|PREP} in intel driver to get/set field values instead of open coding masks and shift operations.
Signed-off-by: Vinod Koul vkoul@kernel.org --- drivers/soundwire/intel.c | 52 ++++++++++++++------------------------- 1 file changed, 18 insertions(+), 34 deletions(-)
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 710f5eba936b..8a958b6cc0fe 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -329,8 +329,7 @@ static int intel_link_power_up(struct sdw_intel *sdw)
/* set SyncPRD period */ sync_reg = intel_readl(shim, SDW_SHIM_SYNC); - sync_reg |= (syncprd << - SDW_REG_SHIFT(SDW_SHIM_SYNC_SYNCPRD)); + sync_reg |= FIELD_PREP(SDW_SHIM_SYNC_SYNCPRD, syncprd);
/* Set SyncCPU bit */ sync_reg |= SDW_SHIM_SYNC_SYNCCPU; @@ -340,10 +339,8 @@ static int intel_link_power_up(struct sdw_intel *sdw) link_control = intel_readl(shim, SDW_SHIM_LCTL);
/* only power-up enabled links */ - spa_mask = sdw->link_res->link_mask << - SDW_REG_SHIFT(SDW_SHIM_LCTL_SPA_MASK); - cpa_mask = sdw->link_res->link_mask << - SDW_REG_SHIFT(SDW_SHIM_LCTL_CPA_MASK); + spa_mask = FIELD_PREP(SDW_SHIM_LCTL_SPA_MASK, sdw->link_res->link_mask); + cpa_mask = FIELD_PREP(SDW_SHIM_LCTL_CPA_MASK, sdw->link_res->link_mask);
link_control |= spa_mask;
@@ -451,7 +448,7 @@ static int intel_shim_init(struct sdw_intel *sdw, bool clock_stop)
intel_shim_glue_to_master_ip(sdw);
- act |= 0x1 << SDW_REG_SHIFT(SDW_SHIM_CTMCTL_DOAIS); + act |= FIELD_PREP(SDW_SHIM_CTMCTL_DOAIS, 0x1); act |= SDW_SHIM_CTMCTL_DACTQE; act |= SDW_SHIM_CTMCTL_DODS; intel_writew(shim, SDW_SHIM_CTMCTL(link_id), act); @@ -514,10 +511,8 @@ static int intel_link_power_down(struct sdw_intel *sdw) link_control = intel_readl(shim, SDW_SHIM_LCTL);
/* only power-down enabled links */ - spa_mask = (~sdw->link_res->link_mask) << - SDW_REG_SHIFT(SDW_SHIM_LCTL_SPA_MASK); - cpa_mask = sdw->link_res->link_mask << - SDW_REG_SHIFT(SDW_SHIM_LCTL_CPA_MASK); + spa_mask = FIELD_PREP(SDW_SHIM_LCTL_SPA_MASK, ~sdw->link_res->link_mask); + cpa_mask = FIELD_PREP(SDW_SHIM_LCTL_CPA_MASK, sdw->link_res->link_mask);
link_control &= spa_mask;
@@ -604,12 +599,9 @@ static void intel_pdi_init(struct sdw_intel *sdw, /* PCM Stream Capability */ pcm_cap = intel_readw(shim, SDW_SHIM_PCMSCAP(link_id));
- config->pcm_bd = (pcm_cap & SDW_SHIM_PCMSCAP_BSS) >> - SDW_REG_SHIFT(SDW_SHIM_PCMSCAP_BSS); - config->pcm_in = (pcm_cap & SDW_SHIM_PCMSCAP_ISS) >> - SDW_REG_SHIFT(SDW_SHIM_PCMSCAP_ISS); - config->pcm_out = (pcm_cap & SDW_SHIM_PCMSCAP_OSS) >> - SDW_REG_SHIFT(SDW_SHIM_PCMSCAP_OSS); + config->pcm_bd = FIELD_GET(SDW_SHIM_PCMSCAP_BSS, pcm_cap); + config->pcm_in = FIELD_GET(SDW_SHIM_PCMSCAP_ISS, pcm_cap); + config->pcm_out = FIELD_GET(SDW_SHIM_PCMSCAP_OSS, pcm_cap);
dev_dbg(sdw->cdns.dev, "PCM cap bd:%d in:%d out:%d\n", config->pcm_bd, config->pcm_in, config->pcm_out); @@ -617,12 +609,9 @@ static void intel_pdi_init(struct sdw_intel *sdw, /* PDM Stream Capability */ pdm_cap = intel_readw(shim, SDW_SHIM_PDMSCAP(link_id));
- config->pdm_bd = (pdm_cap & SDW_SHIM_PDMSCAP_BSS) >> - SDW_REG_SHIFT(SDW_SHIM_PDMSCAP_BSS); - config->pdm_in = (pdm_cap & SDW_SHIM_PDMSCAP_ISS) >> - SDW_REG_SHIFT(SDW_SHIM_PDMSCAP_ISS); - config->pdm_out = (pdm_cap & SDW_SHIM_PDMSCAP_OSS) >> - SDW_REG_SHIFT(SDW_SHIM_PDMSCAP_OSS); + config->pdm_bd = FIELD_GET(SDW_SHIM_PDMSCAP_BSS, pdm_cap); + config->pdm_in = FIELD_GET(SDW_SHIM_PDMSCAP_ISS, pdm_cap); + config->pdm_out = FIELD_GET(SDW_SHIM_PDMSCAP_OSS, pdm_cap);
dev_dbg(sdw->cdns.dev, "PDM cap bd:%d in:%d out:%d\n", config->pdm_bd, config->pdm_in, config->pdm_out); @@ -649,8 +638,7 @@ intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num, bool pcm)
} else { count = intel_readw(shim, SDW_SHIM_PDMSCAP(link_id)); - count = ((count & SDW_SHIM_PDMSCAP_CPSS) >> - SDW_REG_SHIFT(SDW_SHIM_PDMSCAP_CPSS)); + count = FIELD_GET(SDW_SHIM_PDMSCAP_CPSS, count); }
/* zero based values for channel count in register */ @@ -724,10 +712,9 @@ intel_pdi_shim_configure(struct sdw_intel *sdw, struct sdw_cdns_pdi *pdi) else pdi_conf &= ~(SDW_SHIM_PCMSYCM_DIR);
- pdi_conf |= (pdi->intel_alh_id << - SDW_REG_SHIFT(SDW_SHIM_PCMSYCM_STREAM)); - pdi_conf |= (pdi->l_ch_num << SDW_REG_SHIFT(SDW_SHIM_PCMSYCM_LCHN)); - pdi_conf |= (pdi->h_ch_num << SDW_REG_SHIFT(SDW_SHIM_PCMSYCM_HCHN)); + pdi_conf |= FIELD_PREP(SDW_SHIM_PCMSYCM_STREAM, pdi->intel_alh_id); + pdi_conf |= FIELD_PREP(SDW_SHIM_PCMSYCM_LCHN, pdi->l_ch_num); + pdi_conf |= FIELD_PREP(SDW_SHIM_PCMSYCM_HCHN, pdi->h_ch_num);
intel_writew(shim, SDW_SHIM_PCMSYCHM(link_id, pdi->num), pdi_conf); } @@ -747,11 +734,8 @@ intel_pdi_alh_configure(struct sdw_intel *sdw, struct sdw_cdns_pdi *pdi) /* Program Stream config ALH register */ conf = intel_readl(alh, SDW_ALH_STRMZCFG(pdi->intel_alh_id));
- conf |= (SDW_ALH_STRMZCFG_DMAT_VAL << - SDW_REG_SHIFT(SDW_ALH_STRMZCFG_DMAT)); - - conf |= ((pdi->ch_count - 1) << - SDW_REG_SHIFT(SDW_ALH_STRMZCFG_CHN)); + conf |= FIELD_PREP(SDW_ALH_STRMZCFG_DMAT, SDW_ALH_STRMZCFG_DMAT_VAL); + conf |= FIELD_PREP(SDW_ALH_STRMZCFG_CHN, pdi->ch_count - 1);
intel_writel(alh, SDW_ALH_STRMZCFG(pdi->intel_alh_id), conf); }
use FIELD_{GET|PREP} in intel_init driver to get/set field values instead of open coding masks and shift operations.
Signed-off-by: Vinod Koul vkoul@kernel.org --- drivers/soundwire/intel_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soundwire/intel_init.c b/drivers/soundwire/intel_init.c index 65d9b9bd2106..cabdadb09a1b 100644 --- a/drivers/soundwire/intel_init.c +++ b/drivers/soundwire/intel_init.c @@ -383,7 +383,7 @@ static acpi_status sdw_intel_acpi_cb(acpi_handle handle, u32 level, * Name(_ADR, 0x40000000), with bits 31..28 representing the * SoundWire link so filter accordingly */ - if ((adr & GENMASK(31, 28)) >> 28 != SDW_LINK_TYPE) + if (FIELD_GET(GENMASK(31, 28), adr) != SDW_LINK_TYPE) return AE_OK; /* keep going */
/* device found, stop namespace walk */
soundwire had defined SDW_REG_SHIFT to calculate shift values for bitmasks, but now that we have better things in bitfield.h, remove this.
Signed-off-by: Vinod Koul vkoul@kernel.org --- include/linux/soundwire/sdw_registers.h | 7 ------- 1 file changed, 7 deletions(-)
diff --git a/include/linux/soundwire/sdw_registers.h b/include/linux/soundwire/sdw_registers.h index 5d3c271af7d1..f420e8059779 100644 --- a/include/linux/soundwire/sdw_registers.h +++ b/include/linux/soundwire/sdw_registers.h @@ -4,13 +4,6 @@ #ifndef __SDW_REGISTERS_H #define __SDW_REGISTERS_H
-/* - * typically we define register and shifts but if one observes carefully, - * the shift can be generated from MASKS using few bit primitaives like ffs - * etc, so we use that and avoid defining shifts - */ -#define SDW_REG_SHIFT(n) (ffs(n) - 1) - /* * SDW registers as defined by MIPI 1.2 Spec */
On 9/3/2020 7:44 PM, Vinod Koul wrote:
Use the FIELD_{GET|PREP} in soundwire subsytem and remove the local SDW_REG_SHIFT(). This makes code IMO look much neater
Tested this on db845c board
Changes in v2:
- fold in fixes provided by Bard and Pierre
- Use GENMAS_ULL for addr
- rebase to next and fold in new intel change
Vinod Koul (9): soundwire: define and use addr bit masks soundwire: bus: use FIELD_GET() soundwire: slave: use SDW_DISCO_LINK_ID() soundwire: stream: use FIELD_{GET|PREP} soundwire: qcom : use FIELD_{GET|PREP} soundwire: cadence: use FIELD_{GET|PREP} soundwire: intel: use FIELD_{GET|PREP} soundwire: intel_init: use FIELD_{GET|PREP} soundwire: remove SDW_REG_SHIFT()
drivers/soundwire/bus.c | 6 +-- drivers/soundwire/cadence_master.c | 61 +++++++++++-------------- drivers/soundwire/intel.c | 52 ++++++++------------- drivers/soundwire/intel_init.c | 2 +- drivers/soundwire/qcom.c | 22 +++------ drivers/soundwire/slave.c | 2 +- drivers/soundwire/stream.c | 13 ++---- include/linux/soundwire/sdw.h | 21 ++++++--- include/linux/soundwire/sdw_registers.h | 7 --- 9 files changed, 75 insertions(+), 111 deletions(-)
Tested it on Intel platforms.
Tested-by: Bard Liao yung-chuan.liao@linux.intel.com
On 04-09-20, 15:46, Bard liao wrote:
On 9/3/2020 7:44 PM, Vinod Koul wrote:
Use the FIELD_{GET|PREP} in soundwire subsytem and remove the local SDW_REG_SHIFT(). This makes code IMO look much neater
Tested this on db845c board
Changes in v2:
- fold in fixes provided by Bard and Pierre
- Use GENMAS_ULL for addr
- rebase to next and fold in new intel change
Vinod Koul (9): soundwire: define and use addr bit masks soundwire: bus: use FIELD_GET() soundwire: slave: use SDW_DISCO_LINK_ID() soundwire: stream: use FIELD_{GET|PREP} soundwire: qcom : use FIELD_{GET|PREP} soundwire: cadence: use FIELD_{GET|PREP} soundwire: intel: use FIELD_{GET|PREP} soundwire: intel_init: use FIELD_{GET|PREP} soundwire: remove SDW_REG_SHIFT()
drivers/soundwire/bus.c | 6 +-- drivers/soundwire/cadence_master.c | 61 +++++++++++-------------- drivers/soundwire/intel.c | 52 ++++++++------------- drivers/soundwire/intel_init.c | 2 +- drivers/soundwire/qcom.c | 22 +++------ drivers/soundwire/slave.c | 2 +- drivers/soundwire/stream.c | 13 ++---- include/linux/soundwire/sdw.h | 21 ++++++--- include/linux/soundwire/sdw_registers.h | 7 --- 9 files changed, 75 insertions(+), 111 deletions(-)
Tested it on Intel platforms.
Tested-by: Bard Liao yung-chuan.liao@linux.intel.com
Thanks Bard, applied now
participants (2)
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Bard liao -
Vinod Koul