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authorSwapnil Jakhade2021-07-28 16:54:47 +0200
committerVinod Koul2021-08-17 15:42:43 +0530
commit5b16a790f18d234187f31eab0a222bd53cb12b9e (patch)
tree2dbc8732905e65d6d9d9b60ac8269f9f6bcb2a9a /drivers/phy
parente956d4fceba3aeb1cc088d043048b1d2157427b0 (diff)
phy: cadence-torrent: Reorder few functions to remove function declarations
Reorder some functions to avoid function declarations. No functional change. Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com> Link: https://lore.kernel.org/r/20210728145454.15945-3-sjakhade@cadence.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy')
-rw-r--r--drivers/phy/cadence/phy-cadence-torrent.c1207
1 files changed, 588 insertions, 619 deletions
diff --git a/drivers/phy/cadence/phy-cadence-torrent.c b/drivers/phy/cadence/phy-cadence-torrent.c
index ff647669f1a3..4b2d6d3eace9 100644
--- a/drivers/phy/cadence/phy-cadence-torrent.c
+++ b/drivers/phy/cadence/phy-cadence-torrent.c
@@ -333,57 +333,6 @@ struct cdns_torrent_derived_refclk {
#define to_cdns_torrent_derived_refclk(_hw) \
container_of(_hw, struct cdns_torrent_derived_refclk, hw)
-static int cdns_torrent_phy_init(struct phy *phy);
-static int cdns_torrent_dp_init(struct phy *phy);
-static int cdns_torrent_dp_run(struct cdns_torrent_phy *cdns_phy,
- u32 num_lanes);
-static
-int cdns_torrent_dp_wait_pma_cmn_ready(struct cdns_torrent_phy *cdns_phy);
-static void cdns_torrent_dp_pma_cfg(struct cdns_torrent_phy *cdns_phy,
- struct cdns_torrent_inst *inst);
-static
-void cdns_torrent_dp_pma_cmn_cfg_19_2mhz(struct cdns_torrent_phy *cdns_phy);
-static
-void cdns_torrent_dp_pma_cmn_vco_cfg_19_2mhz(struct cdns_torrent_phy *cdns_phy,
- u32 rate, bool ssc);
-static
-void cdns_torrent_dp_pma_cmn_cfg_25mhz(struct cdns_torrent_phy *cdns_phy);
-static
-void cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(struct cdns_torrent_phy *cdns_phy,
- u32 rate, bool ssc);
-static void cdns_torrent_dp_pma_lane_cfg(struct cdns_torrent_phy *cdns_phy,
- unsigned int lane);
-static void cdns_torrent_dp_pma_cmn_rate(struct cdns_torrent_phy *cdns_phy,
- u32 rate, u32 num_lanes);
-static int cdns_torrent_dp_configure(struct phy *phy,
- union phy_configure_opts *opts);
-static int cdns_torrent_dp_set_power_state(struct cdns_torrent_phy *cdns_phy,
- u32 num_lanes,
- enum phy_powerstate powerstate);
-static int cdns_torrent_phy_on(struct phy *phy);
-static int cdns_torrent_phy_off(struct phy *phy);
-
-static const struct phy_ops cdns_torrent_phy_ops = {
- .init = cdns_torrent_phy_init,
- .configure = cdns_torrent_dp_configure,
- .power_on = cdns_torrent_phy_on,
- .power_off = cdns_torrent_phy_off,
- .owner = THIS_MODULE,
-};
-
-static int cdns_torrent_noop_phy_on(struct phy *phy)
-{
- /* Give 5ms to 10ms delay for the PIPE clock to be stable */
- usleep_range(5000, 10000);
-
- return 0;
-}
-
-static const struct phy_ops noop_ops = {
- .power_on = cdns_torrent_noop_phy_on,
- .owner = THIS_MODULE,
-};
-
struct cdns_reg_pairs {
u32 val;
u32 off;
@@ -615,477 +564,6 @@ static const struct coefficients vltg_coeff[4][4] = {
}
};
-/*
- * Enable or disable PLL for selected lanes.
- */
-static int cdns_torrent_dp_set_pll_en(struct cdns_torrent_phy *cdns_phy,
- struct phy_configure_opts_dp *dp,
- bool enable)
-{
- u32 rd_val;
- u32 ret;
- struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
-
- /*
- * Used to determine, which bits to check for or enable in
- * PHY_PMA_XCVR_PLLCLK_EN register.
- */
- u32 pll_bits;
- /* Used to enable or disable lanes. */
- u32 pll_val;
-
- /* Select values of registers and mask, depending on enabled lane
- * count.
- */
- switch (dp->lanes) {
- /* lane 0 */
- case (1):
- pll_bits = 0x00000001;
- break;
- /* lanes 0-1 */
- case (2):
- pll_bits = 0x00000003;
- break;
- /* lanes 0-3, all */
- default:
- pll_bits = 0x0000000F;
- break;
- }
-
- if (enable)
- pll_val = pll_bits;
- else
- pll_val = 0x00000000;
-
- cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_PLLCLK_EN, pll_val);
-
- /* Wait for acknowledgment from PHY. */
- ret = regmap_read_poll_timeout(regmap,
- PHY_PMA_XCVR_PLLCLK_EN_ACK,
- rd_val,
- (rd_val & pll_bits) == pll_val,
- 0, POLL_TIMEOUT_US);
- ndelay(100);
- return ret;
-}
-
-/*
- * Perform register operations related to setting link rate, once powerstate is
- * set and PLL disable request was processed.
- */
-static int cdns_torrent_dp_configure_rate(struct cdns_torrent_phy *cdns_phy,
- struct phy_configure_opts_dp *dp)
-{
- u32 ret;
- u32 read_val;
-
- /* Disable the cmn_pll0_en before re-programming the new data rate. */
- regmap_field_write(cdns_phy->phy_pma_pll_raw_ctrl, 0x0);
-
- /*
- * Wait for PLL ready de-assertion.
- * For PLL0 - PHY_PMA_CMN_CTRL2[2] == 1
- */
- ret = regmap_field_read_poll_timeout(cdns_phy->phy_pma_cmn_ctrl_2,
- read_val,
- ((read_val >> 2) & 0x01) != 0,
- 0, POLL_TIMEOUT_US);
- if (ret)
- return ret;
- ndelay(200);
-
- /* DP Rate Change - VCO Output settings. */
- if (cdns_phy->ref_clk_rate == REF_CLK_19_2MHZ) {
- /* PMA common configuration 19.2MHz */
- cdns_torrent_dp_pma_cmn_vco_cfg_19_2mhz(cdns_phy, dp->link_rate,
- dp->ssc);
- cdns_torrent_dp_pma_cmn_cfg_19_2mhz(cdns_phy);
- } else if (cdns_phy->ref_clk_rate == REF_CLK_25MHZ) {
- /* PMA common configuration 25MHz */
- cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(cdns_phy, dp->link_rate,
- dp->ssc);
- cdns_torrent_dp_pma_cmn_cfg_25mhz(cdns_phy);
- }
- cdns_torrent_dp_pma_cmn_rate(cdns_phy, dp->link_rate, dp->lanes);
-
- /* Enable the cmn_pll0_en. */
- regmap_field_write(cdns_phy->phy_pma_pll_raw_ctrl, 0x3);
-
- /*
- * Wait for PLL ready assertion.
- * For PLL0 - PHY_PMA_CMN_CTRL2[0] == 1
- */
- ret = regmap_field_read_poll_timeout(cdns_phy->phy_pma_cmn_ctrl_2,
- read_val,
- (read_val & 0x01) != 0,
- 0, POLL_TIMEOUT_US);
- return ret;
-}
-
-/*
- * Verify, that parameters to configure PHY with are correct.
- */
-static int cdns_torrent_dp_verify_config(struct cdns_torrent_inst *inst,
- struct phy_configure_opts_dp *dp)
-{
- u8 i;
-
- /* If changing link rate was required, verify it's supported. */
- if (dp->set_rate) {
- switch (dp->link_rate) {
- case 1620:
- case 2160:
- case 2430:
- case 2700:
- case 3240:
- case 4320:
- case 5400:
- case 8100:
- /* valid bit rate */
- break;
- default:
- return -EINVAL;
- }
- }
-
- /* Verify lane count. */
- switch (dp->lanes) {
- case 1:
- case 2:
- case 4:
- /* valid lane count. */
- break;
- default:
- return -EINVAL;
- }
-
- /* Check against actual number of PHY's lanes. */
- if (dp->lanes > inst->num_lanes)
- return -EINVAL;
-
- /*
- * If changing voltages is required, check swing and pre-emphasis
- * levels, per-lane.
- */
- if (dp->set_voltages) {
- /* Lane count verified previously. */
- for (i = 0; i < dp->lanes; i++) {
- if (dp->voltage[i] > 3 || dp->pre[i] > 3)
- return -EINVAL;
-
- /* Sum of voltage swing and pre-emphasis levels cannot
- * exceed 3.
- */
- if (dp->voltage[i] + dp->pre[i] > 3)
- return -EINVAL;
- }
- }
-
- return 0;
-}
-
-/* Set power state A0 and PLL clock enable to 0 on enabled lanes. */
-static void cdns_torrent_dp_set_a0_pll(struct cdns_torrent_phy *cdns_phy,
- u32 num_lanes)
-{
- struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
- u32 pwr_state = cdns_torrent_dp_read(regmap,
- PHY_PMA_XCVR_POWER_STATE_REQ);
- u32 pll_clk_en = cdns_torrent_dp_read(regmap,
- PHY_PMA_XCVR_PLLCLK_EN);
-
- /* Lane 0 is always enabled. */
- pwr_state &= ~(PMA_XCVR_POWER_STATE_REQ_LN_MASK <<
- PHY_POWER_STATE_LN_0);
- pll_clk_en &= ~0x01U;
-
- if (num_lanes > 1) {
- /* lane 1 */
- pwr_state &= ~(PMA_XCVR_POWER_STATE_REQ_LN_MASK <<
- PHY_POWER_STATE_LN_1);
- pll_clk_en &= ~(0x01U << 1);
- }
-
- if (num_lanes > 2) {
- /* lanes 2 and 3 */
- pwr_state &= ~(PMA_XCVR_POWER_STATE_REQ_LN_MASK <<
- PHY_POWER_STATE_LN_2);
- pwr_state &= ~(PMA_XCVR_POWER_STATE_REQ_LN_MASK <<
- PHY_POWER_STATE_LN_3);
- pll_clk_en &= ~(0x01U << 2);
- pll_clk_en &= ~(0x01U << 3);
- }
-
- cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_POWER_STATE_REQ, pwr_state);
- cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_PLLCLK_EN, pll_clk_en);
-}
-
-/* Configure lane count as required. */
-static int cdns_torrent_dp_set_lanes(struct cdns_torrent_phy *cdns_phy,
- struct phy_configure_opts_dp *dp)
-{
- u32 value;
- u32 ret;
- struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
- u8 lane_mask = (1 << dp->lanes) - 1;
-
- value = cdns_torrent_dp_read(regmap, PHY_RESET);
- /* clear pma_tx_elec_idle_ln_* bits. */
- value &= ~PMA_TX_ELEC_IDLE_MASK;
- /* Assert pma_tx_elec_idle_ln_* for disabled lanes. */
- value |= ((~lane_mask) << PMA_TX_ELEC_IDLE_SHIFT) &
- PMA_TX_ELEC_IDLE_MASK;
- cdns_torrent_dp_write(regmap, PHY_RESET, value);
-
- /* reset the link by asserting phy_l00_reset_n low */
- cdns_torrent_dp_write(regmap, PHY_RESET,
- value & (~PHY_L00_RESET_N_MASK));
-
- /*
- * Assert lane reset on unused lanes and lane 0 so they remain in reset
- * and powered down when re-enabling the link
- */
- value = (value & 0x0000FFF0) | (0x0000000E & lane_mask);
- cdns_torrent_dp_write(regmap, PHY_RESET, value);
-
- cdns_torrent_dp_set_a0_pll(cdns_phy, dp->lanes);
-
- /* release phy_l0*_reset_n based on used laneCount */
- value = (value & 0x0000FFF0) | (0x0000000F & lane_mask);
- cdns_torrent_dp_write(regmap, PHY_RESET, value);
-
- /* Wait, until PHY gets ready after releasing PHY reset signal. */
- ret = cdns_torrent_dp_wait_pma_cmn_ready(cdns_phy);
- if (ret)
- return ret;
-
- ndelay(100);
-
- /* release pma_xcvr_pllclk_en_ln_*, only for the master lane */
- cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_PLLCLK_EN, 0x0001);
-
- ret = cdns_torrent_dp_run(cdns_phy, dp->lanes);
-
- return ret;
-}
-
-/* Configure link rate as required. */
-static int cdns_torrent_dp_set_rate(struct cdns_torrent_phy *cdns_phy,
- struct phy_configure_opts_dp *dp)
-{
- u32 ret;
-
- ret = cdns_torrent_dp_set_power_state(cdns_phy, dp->lanes,
- POWERSTATE_A3);
- if (ret)
- return ret;
- ret = cdns_torrent_dp_set_pll_en(cdns_phy, dp, false);
- if (ret)
- return ret;
- ndelay(200);
-
- ret = cdns_torrent_dp_configure_rate(cdns_phy, dp);
- if (ret)
- return ret;
- ndelay(200);
-
- ret = cdns_torrent_dp_set_pll_en(cdns_phy, dp, true);
- if (ret)
- return ret;
- ret = cdns_torrent_dp_set_power_state(cdns_phy, dp->lanes,
- POWERSTATE_A2);
- if (ret)
- return ret;
- ret = cdns_torrent_dp_set_power_state(cdns_phy, dp->lanes,
- POWERSTATE_A0);
- if (ret)
- return ret;
- ndelay(900);
-
- return ret;
-}
-
-/* Configure voltage swing and pre-emphasis for all enabled lanes. */
-static void cdns_torrent_dp_set_voltages(struct cdns_torrent_phy *cdns_phy,
- struct phy_configure_opts_dp *dp)
-{
- u8 lane;
- u16 val;
-
- for (lane = 0; lane < dp->lanes; lane++) {
- val = cdns_torrent_phy_read(cdns_phy->regmap_tx_lane_cdb[lane],
- TX_DIAG_ACYA);
- /*
- * Write 1 to register bit TX_DIAG_ACYA[0] to freeze the
- * current state of the analog TX driver.
- */
- val |= TX_DIAG_ACYA_HBDC_MASK;
- cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
- TX_DIAG_ACYA, val);
-
- cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
- TX_TXCC_CTRL, 0x08A4);
- val = vltg_coeff[dp->voltage[lane]][dp->pre[lane]].diag_tx_drv;
- cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
- DRV_DIAG_TX_DRV, val);
- val = vltg_coeff[dp->voltage[lane]][dp->pre[lane]].mgnfs_mult;
- cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
- TX_TXCC_MGNFS_MULT_000,
- val);
- val = vltg_coeff[dp->voltage[lane]][dp->pre[lane]].cpost_mult;
- cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
- TX_TXCC_CPOST_MULT_00,
- val);
-
- val = cdns_torrent_phy_read(cdns_phy->regmap_tx_lane_cdb[lane],
- TX_DIAG_ACYA);
- /*
- * Write 0 to register bit TX_DIAG_ACYA[0] to allow the state of
- * analog TX driver to reflect the new programmed one.
- */
- val &= ~TX_DIAG_ACYA_HBDC_MASK;
- cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
- TX_DIAG_ACYA, val);
- }
-};
-
-static int cdns_torrent_dp_configure(struct phy *phy,
- union phy_configure_opts *opts)
-{
- struct cdns_torrent_inst *inst = phy_get_drvdata(phy);
- struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(phy->dev.parent);
- int ret;
-
- ret = cdns_torrent_dp_verify_config(inst, &opts->dp);
- if (ret) {
- dev_err(&phy->dev, "invalid params for phy configure\n");
- return ret;
- }
-
- if (opts->dp.set_lanes) {
- ret = cdns_torrent_dp_set_lanes(cdns_phy, &opts->dp);
- if (ret) {
- dev_err(&phy->dev, "cdns_torrent_dp_set_lanes failed\n");
- return ret;
- }
- }
-
- if (opts->dp.set_rate) {
- ret = cdns_torrent_dp_set_rate(cdns_phy, &opts->dp);
- if (ret) {
- dev_err(&phy->dev, "cdns_torrent_dp_set_rate failed\n");
- return ret;
- }
- }
-
- if (opts->dp.set_voltages)
- cdns_torrent_dp_set_voltages(cdns_phy, &opts->dp);
-
- return ret;
-}
-
-static int cdns_torrent_dp_init(struct phy *phy)
-{
- unsigned char lane_bits;
- int ret;
- struct cdns_torrent_inst *inst = phy_get_drvdata(phy);
- struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(phy->dev.parent);
- struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
-
- switch (cdns_phy->ref_clk_rate) {
- case REF_CLK_19_2MHZ:
- case REF_CLK_25MHZ:
- /* Valid Ref Clock Rate */
- break;
- default:
- dev_err(cdns_phy->dev, "Unsupported Ref Clock Rate\n");
- return -EINVAL;
- }
-
- cdns_torrent_dp_write(regmap, PHY_AUX_CTRL, 0x0003); /* enable AUX */
-
- /* PHY PMA registers configuration function */
- cdns_torrent_dp_pma_cfg(cdns_phy, inst);
-
- /*
- * Set lines power state to A0
- * Set lines pll clk enable to 0
- */
- cdns_torrent_dp_set_a0_pll(cdns_phy, inst->num_lanes);
-
- /*
- * release phy_l0*_reset_n and pma_tx_elec_idle_ln_* based on
- * used lanes
- */
- lane_bits = (1 << inst->num_lanes) - 1;
- cdns_torrent_dp_write(regmap, PHY_RESET,
- ((0xF & ~lane_bits) << 4) | (0xF & lane_bits));
-
- /* release pma_xcvr_pllclk_en_ln_*, only for the master lane */
- cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_PLLCLK_EN, 0x0001);
-
- /* PHY PMA registers configuration functions */
- /* Initialize PHY with max supported link rate, without SSC. */
- if (cdns_phy->ref_clk_rate == REF_CLK_19_2MHZ)
- cdns_torrent_dp_pma_cmn_vco_cfg_19_2mhz(cdns_phy,
- cdns_phy->max_bit_rate,
- false);
- else if (cdns_phy->ref_clk_rate == REF_CLK_25MHZ)
- cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(cdns_phy,
- cdns_phy->max_bit_rate,
- false);
- cdns_torrent_dp_pma_cmn_rate(cdns_phy, cdns_phy->max_bit_rate,
- inst->num_lanes);
-
- /* take out of reset */
- regmap_field_write(cdns_phy->phy_reset_ctrl, 0x1);
-
- cdns_torrent_phy_on(phy);
-
- ret = cdns_torrent_dp_wait_pma_cmn_ready(cdns_phy);
- if (ret)
- return ret;
-
- ret = cdns_torrent_dp_run(cdns_phy, inst->num_lanes);
-
- return ret;
-}
-
-static
-int cdns_torrent_dp_wait_pma_cmn_ready(struct cdns_torrent_phy *cdns_phy)
-{
- unsigned int reg;
- int ret;
- struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
-
- ret = regmap_read_poll_timeout(regmap, PHY_PMA_CMN_READY, reg,
- reg & 1, 0, POLL_TIMEOUT_US);
- if (ret == -ETIMEDOUT) {
- dev_err(cdns_phy->dev,
- "timeout waiting for PMA common ready\n");
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-static void cdns_torrent_dp_pma_cfg(struct cdns_torrent_phy *cdns_phy,
- struct cdns_torrent_inst *inst)
-{
- unsigned int i;
-
- if (cdns_phy->ref_clk_rate == REF_CLK_19_2MHZ)
- /* PMA common configuration 19.2MHz */
- cdns_torrent_dp_pma_cmn_cfg_19_2mhz(cdns_phy);
- else if (cdns_phy->ref_clk_rate == REF_CLK_25MHZ)
- /* PMA common configuration 25MHz */
- cdns_torrent_dp_pma_cmn_cfg_25mhz(cdns_phy);
-
- /* PMA lane configuration to deal with multi-link operation */
- for (i = 0; i < inst->num_lanes; i++)
- cdns_torrent_dp_pma_lane_cfg(cdns_phy, i);
-}
-
static
void cdns_torrent_dp_pma_cmn_cfg_19_2mhz(struct cdns_torrent_phy *cdns_phy)
{
@@ -1478,53 +956,6 @@ void cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(struct cdns_torrent_phy *cdns_phy,
cdns_torrent_phy_write(regmap, CMN_PLL1_LOCK_PLLCNT_START, 0x00C7);
}
-static void cdns_torrent_dp_pma_cmn_rate(struct cdns_torrent_phy *cdns_phy,
- u32 rate, u32 num_lanes)
-{
- unsigned int clk_sel_val = 0;
- unsigned int hsclk_div_val = 0;
- unsigned int i;
-
- /* 16'h0000 for single DP link configuration */
- regmap_field_write(cdns_phy->phy_pll_cfg, 0x0);
-
- switch (rate) {
- case 1620:
- clk_sel_val = 0x0f01;
- hsclk_div_val = 2;
- break;
- case 2160:
- case 2430:
- case 2700:
- clk_sel_val = 0x0701;
- hsclk_div_val = 1;
- break;
- case 3240:
- clk_sel_val = 0x0b00;
- hsclk_div_val = 2;
- break;
- case 4320:
- case 5400:
- clk_sel_val = 0x0301;
- hsclk_div_val = 0;
- break;
- case 8100:
- clk_sel_val = 0x0200;
- hsclk_div_val = 0;
- break;
- }
-
- cdns_torrent_phy_write(cdns_phy->regmap_common_cdb,
- CMN_PDIAG_PLL0_CLK_SEL_M0, clk_sel_val);
- cdns_torrent_phy_write(cdns_phy->regmap_common_cdb,
- CMN_PDIAG_PLL1_CLK_SEL_M0, clk_sel_val);
-
- /* PMA lane configuration to deal with multi-link operation */
- for (i = 0; i < num_lanes; i++)
- cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[i],
- XCVR_DIAG_HSCLK_DIV, hsclk_div_val);
-}
-
static void cdns_torrent_dp_pma_lane_cfg(struct cdns_torrent_phy *cdns_phy,
unsigned int lane)
{
@@ -1568,6 +999,77 @@ static void cdns_torrent_dp_pma_lane_cfg(struct cdns_torrent_phy *cdns_phy,
XCVR_DIAG_HSCLK_SEL, 0x0000);
}
+static void cdns_torrent_dp_pma_cfg(struct cdns_torrent_phy *cdns_phy,
+ struct cdns_torrent_inst *inst)
+{
+ unsigned int i;
+
+ if (cdns_phy->ref_clk_rate == REF_CLK_19_2MHZ)
+ /* PMA common configuration 19.2MHz */
+ cdns_torrent_dp_pma_cmn_cfg_19_2mhz(cdns_phy);
+ else if (cdns_phy->ref_clk_rate == REF_CLK_25MHZ)
+ /* PMA common configuration 25MHz */
+ cdns_torrent_dp_pma_cmn_cfg_25mhz(cdns_phy);
+
+ /* PMA lane configuration to deal with multi-link operation */
+ for (i = 0; i < inst->num_lanes; i++)
+ cdns_torrent_dp_pma_lane_cfg(cdns_phy, i);
+}
+
+/*
+ * Enable or disable PLL for selected lanes.
+ */
+static int cdns_torrent_dp_set_pll_en(struct cdns_torrent_phy *cdns_phy,
+ struct phy_configure_opts_dp *dp,
+ bool enable)
+{
+ u32 rd_val;
+ u32 ret;
+ struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
+
+ /*
+ * Used to determine, which bits to check for or enable in
+ * PHY_PMA_XCVR_PLLCLK_EN register.
+ */
+ u32 pll_bits;
+ /* Used to enable or disable lanes. */
+ u32 pll_val;
+
+ /* Select values of registers and mask, depending on enabled lane
+ * count.
+ */
+ switch (dp->lanes) {
+ /* lane 0 */
+ case (1):
+ pll_bits = 0x00000001;
+ break;
+ /* lanes 0-1 */
+ case (2):
+ pll_bits = 0x00000003;
+ break;
+ /* lanes 0-3, all */
+ default:
+ pll_bits = 0x0000000F;
+ break;
+ }
+
+ if (enable)
+ pll_val = pll_bits;
+ else
+ pll_val = 0x00000000;
+
+ cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_PLLCLK_EN, pll_val);
+
+ /* Wait for acknowledgment from PHY. */
+ ret = regmap_read_poll_timeout(regmap,
+ PHY_PMA_XCVR_PLLCLK_EN_ACK,
+ rd_val,
+ (rd_val & pll_bits) == pll_val,
+ 0, POLL_TIMEOUT_US);
+ ndelay(100);
+ return ret;
+}
+
static int cdns_torrent_dp_set_power_state(struct cdns_torrent_phy *cdns_phy,
u32 num_lanes,
enum phy_powerstate powerstate)
@@ -1662,6 +1164,502 @@ static int cdns_torrent_dp_run(struct cdns_torrent_phy *cdns_phy, u32 num_lanes)
return ret;
}
+static int cdns_torrent_dp_wait_pma_cmn_ready(struct cdns_torrent_phy *cdns_phy)
+{
+ unsigned int reg;
+ int ret;
+ struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
+
+ ret = regmap_read_poll_timeout(regmap, PHY_PMA_CMN_READY, reg,
+ reg & 1, 0, POLL_TIMEOUT_US);
+ if (ret == -ETIMEDOUT) {
+ dev_err(cdns_phy->dev,
+ "timeout waiting for PMA common ready\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static void cdns_torrent_dp_pma_cmn_rate(struct cdns_torrent_phy *cdns_phy,
+ u32 rate, u32 num_lanes)
+{
+ unsigned int clk_sel_val = 0;
+ unsigned int hsclk_div_val = 0;
+ unsigned int i;
+
+ /* 16'h0000 for single DP link configuration */
+ regmap_field_write(cdns_phy->phy_pll_cfg, 0x0);
+
+ switch (rate) {
+ case 1620:
+ clk_sel_val = 0x0f01;
+ hsclk_div_val = 2;
+ break;
+ case 2160:
+ case 2430:
+ case 2700:
+ clk_sel_val = 0x0701;
+ hsclk_div_val = 1;
+ break;
+ case 3240:
+ clk_sel_val = 0x0b00;
+ hsclk_div_val = 2;
+ break;
+ case 4320:
+ case 5400:
+ clk_sel_val = 0x0301;
+ hsclk_div_val = 0;
+ break;
+ case 8100:
+ clk_sel_val = 0x0200;
+ hsclk_div_val = 0;
+ break;
+ }
+
+ cdns_torrent_phy_write(cdns_phy->regmap_common_cdb,
+ CMN_PDIAG_PLL0_CLK_SEL_M0, clk_sel_val);
+ cdns_torrent_phy_write(cdns_phy->regmap_common_cdb,
+ CMN_PDIAG_PLL1_CLK_SEL_M0, clk_sel_val);
+
+ /* PMA lane configuration to deal with multi-link operation */
+ for (i = 0; i < num_lanes; i++)
+ cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[i],
+ XCVR_DIAG_HSCLK_DIV, hsclk_div_val);
+}
+
+/*
+ * Perform register operations related to setting link rate, once powerstate is
+ * set and PLL disable request was processed.
+ */
+static int cdns_torrent_dp_configure_rate(struct cdns_torrent_phy *cdns_phy,
+ struct phy_configure_opts_dp *dp)
+{
+ u32 ret;
+ u32 read_val;
+
+ /* Disable the cmn_pll0_en before re-programming the new data rate. */
+ regmap_field_write(cdns_phy->phy_pma_pll_raw_ctrl, 0x0);
+
+ /*
+ * Wait for PLL ready de-assertion.
+ * For PLL0 - PHY_PMA_CMN_CTRL2[2] == 1
+ */
+ ret = regmap_field_read_poll_timeout(cdns_phy->phy_pma_cmn_ctrl_2,
+ read_val,
+ ((read_val >> 2) & 0x01) != 0,
+ 0, POLL_TIMEOUT_US);
+ if (ret)
+ return ret;
+ ndelay(200);
+
+ /* DP Rate Change - VCO Output settings. */
+ if (cdns_phy->ref_clk_rate == REF_CLK_19_2MHZ) {
+ /* PMA common configuration 19.2MHz */
+ cdns_torrent_dp_pma_cmn_vco_cfg_19_2mhz(cdns_phy, dp->link_rate,
+ dp->ssc);
+ cdns_torrent_dp_pma_cmn_cfg_19_2mhz(cdns_phy);
+ } else if (cdns_phy->ref_clk_rate == REF_CLK_25MHZ) {
+ /* PMA common configuration 25MHz */
+ cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(cdns_phy, dp->link_rate,
+ dp->ssc);
+ cdns_torrent_dp_pma_cmn_cfg_25mhz(cdns_phy);
+ }
+ cdns_torrent_dp_pma_cmn_rate(cdns_phy, dp->link_rate, dp->lanes);
+
+ /* Enable the cmn_pll0_en. */
+ regmap_field_write(cdns_phy->phy_pma_pll_raw_ctrl, 0x3);
+
+ /*
+ * Wait for PLL ready assertion.
+ * For PLL0 - PHY_PMA_CMN_CTRL2[0] == 1
+ */
+ ret = regmap_field_read_poll_timeout(cdns_phy->phy_pma_cmn_ctrl_2,
+ read_val,
+ (read_val & 0x01) != 0,
+ 0, POLL_TIMEOUT_US);
+ return ret;
+}
+
+/*
+ * Verify, that parameters to configure PHY with are correct.
+ */
+static int cdns_torrent_dp_verify_config(struct cdns_torrent_inst *inst,
+ struct phy_configure_opts_dp *dp)
+{
+ u8 i;
+
+ /* If changing link rate was required, verify it's supported. */
+ if (dp->set_rate) {
+ switch (dp->link_rate) {
+ case 1620:
+ case 2160:
+ case 2430:
+ case 2700:
+ case 3240:
+ case 4320:
+ case 5400:
+ case 8100:
+ /* valid bit rate */
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ /* Verify lane count. */
+ switch (dp->lanes) {
+ case 1:
+ case 2:
+ case 4:
+ /* valid lane count. */
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Check against actual number of PHY's lanes. */
+ if (dp->lanes > inst->num_lanes)
+ return -EINVAL;
+
+ /*
+ * If changing voltages is required, check swing and pre-emphasis
+ * levels, per-lane.
+ */
+ if (dp->set_voltages) {
+ /* Lane count verified previously. */
+ for (i = 0; i < dp->lanes; i++) {
+ if (dp->voltage[i] > 3 || dp->pre[i] > 3)
+ return -EINVAL;
+
+ /* Sum of voltage swing and pre-emphasis levels cannot
+ * exceed 3.
+ */
+ if (dp->voltage[i] + dp->pre[i] > 3)
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+/* Set power state A0 and PLL clock enable to 0 on enabled lanes. */
+static void cdns_torrent_dp_set_a0_pll(struct cdns_torrent_phy *cdns_phy,
+ u32 num_lanes)
+{
+ struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
+ u32 pwr_state = cdns_torrent_dp_read(regmap,
+ PHY_PMA_XCVR_POWER_STATE_REQ);
+ u32 pll_clk_en = cdns_torrent_dp_read(regmap,
+ PHY_PMA_XCVR_PLLCLK_EN);
+
+ /* Lane 0 is always enabled. */
+ pwr_state &= ~(PMA_XCVR_POWER_STATE_REQ_LN_MASK <<
+ PHY_POWER_STATE_LN_0);
+ pll_clk_en &= ~0x01U;
+
+ if (num_lanes > 1) {
+ /* lane 1 */
+ pwr_state &= ~(PMA_XCVR_POWER_STATE_REQ_LN_MASK <<
+ PHY_POWER_STATE_LN_1);
+ pll_clk_en &= ~(0x01U << 1);
+ }
+
+ if (num_lanes > 2) {
+ /* lanes 2 and 3 */
+ pwr_state &= ~(PMA_XCVR_POWER_STATE_REQ_LN_MASK <<
+ PHY_POWER_STATE_LN_2);
+ pwr_state &= ~(PMA_XCVR_POWER_STATE_REQ_LN_MASK <<
+ PHY_POWER_STATE_LN_3);
+ pll_clk_en &= ~(0x01U << 2);
+ pll_clk_en &= ~(0x01U << 3);
+ }
+
+ cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_POWER_STATE_REQ, pwr_state);
+ cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_PLLCLK_EN, pll_clk_en);
+}
+
+/* Configure lane count as required. */
+static int cdns_torrent_dp_set_lanes(struct cdns_torrent_phy *cdns_phy,
+ struct phy_configure_opts_dp *dp)
+{
+ u32 value;
+ u32 ret;
+ struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
+ u8 lane_mask = (1 << dp->lanes) - 1;
+
+ value = cdns_torrent_dp_read(regmap, PHY_RESET);
+ /* clear pma_tx_elec_idle_ln_* bits. */
+ value &= ~PMA_TX_ELEC_IDLE_MASK;
+ /* Assert pma_tx_elec_idle_ln_* for disabled lanes. */
+ value |= ((~lane_mask) << PMA_TX_ELEC_IDLE_SHIFT) &
+ PMA_TX_ELEC_IDLE_MASK;
+ cdns_torrent_dp_write(regmap, PHY_RESET, value);
+
+ /* reset the link by asserting phy_l00_reset_n low */
+ cdns_torrent_dp_write(regmap, PHY_RESET,
+ value & (~PHY_L00_RESET_N_MASK));
+
+ /*
+ * Assert lane reset on unused lanes and lane 0 so they remain in reset
+ * and powered down when re-enabling the link
+ */
+ value = (value & 0x0000FFF0) | (0x0000000E & lane_mask);
+ cdns_torrent_dp_write(regmap, PHY_RESET, value);
+
+ cdns_torrent_dp_set_a0_pll(cdns_phy, dp->lanes);
+
+ /* release phy_l0*_reset_n based on used laneCount */
+ value = (value & 0x0000FFF0) | (0x0000000F & lane_mask);
+ cdns_torrent_dp_write(regmap, PHY_RESET, value);
+
+ /* Wait, until PHY gets ready after releasing PHY reset signal. */
+ ret = cdns_torrent_dp_wait_pma_cmn_ready(cdns_phy);
+ if (ret)
+ return ret;
+
+ ndelay(100);
+
+ /* release pma_xcvr_pllclk_en_ln_*, only for the master lane */
+ cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_PLLCLK_EN, 0x0001);
+
+ ret = cdns_torrent_dp_run(cdns_phy, dp->lanes);
+
+ return ret;
+}
+
+/* Configure link rate as required. */
+static int cdns_torrent_dp_set_rate(struct cdns_torrent_phy *cdns_phy,
+ struct phy_configure_opts_dp *dp)
+{
+ u32 ret;
+
+ ret = cdns_torrent_dp_set_power_state(cdns_phy, dp->lanes,
+ POWERSTATE_A3);
+ if (ret)
+ return ret;
+ ret = cdns_torrent_dp_set_pll_en(cdns_phy, dp, false);
+ if (ret)
+ return ret;
+ ndelay(200);
+
+ ret = cdns_torrent_dp_configure_rate(cdns_phy, dp);
+ if (ret)
+ return ret;
+ ndelay(200);
+
+ ret = cdns_torrent_dp_set_pll_en(cdns_phy, dp, true);
+ if (ret)
+ return ret;
+ ret = cdns_torrent_dp_set_power_state(cdns_phy, dp->lanes,
+ POWERSTATE_A2);
+ if (ret)
+ return ret;
+ ret = cdns_torrent_dp_set_power_state(cdns_phy, dp->lanes,
+ POWERSTATE_A0);
+ if (ret)
+ return ret;
+ ndelay(900);
+
+ return ret;
+}
+
+/* Configure voltage swing and pre-emphasis for all enabled lanes. */
+static void cdns_torrent_dp_set_voltages(struct cdns_torrent_phy *cdns_phy,
+ struct phy_configure_opts_dp *dp)
+{
+ u8 lane;
+ u16 val;
+
+ for (lane = 0; lane < dp->lanes; lane++) {
+ val = cdns_torrent_phy_read(cdns_phy->regmap_tx_lane_cdb[lane],
+ TX_DIAG_ACYA);
+ /*
+ * Write 1 to register bit TX_DIAG_ACYA[0] to freeze the
+ * current state of the analog TX driver.
+ */
+ val |= TX_DIAG_ACYA_HBDC_MASK;
+ cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
+ TX_DIAG_ACYA, val);
+
+ cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
+ TX_TXCC_CTRL, 0x08A4);
+ val = vltg_coeff[dp->voltage[lane]][dp->pre[lane]].diag_tx_drv;
+ cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
+ DRV_DIAG_TX_DRV, val);
+ val = vltg_coeff[dp->voltage[lane]][dp->pre[lane]].mgnfs_mult;
+ cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
+ TX_TXCC_MGNFS_MULT_000,
+ val);
+ val = vltg_coeff[dp->voltage[lane]][dp->pre[lane]].cpost_mult;
+ cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
+ TX_TXCC_CPOST_MULT_00,
+ val);
+
+ val = cdns_torrent_phy_read(cdns_phy->regmap_tx_lane_cdb[lane],
+ TX_DIAG_ACYA);
+ /*
+ * Write 0 to register bit TX_DIAG_ACYA[0] to allow the state of
+ * analog TX driver to reflect the new programmed one.
+ */
+ val &= ~TX_DIAG_ACYA_HBDC_MASK;
+ cdns_torrent_phy_write(cdns_phy->regmap_tx_lane_cdb[lane],
+ TX_DIAG_ACYA, val);
+ }
+};
+
+static int cdns_torrent_dp_configure(struct phy *phy,
+ union phy_configure_opts *opts)
+{
+ struct cdns_torrent_inst *inst = phy_get_drvdata(phy);
+ struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(phy->dev.parent);
+ int ret;
+
+ ret = cdns_torrent_dp_verify_config(inst, &opts->dp);
+ if (ret) {
+ dev_err(&phy->dev, "invalid params for phy configure\n");
+ return ret;
+ }
+
+ if (opts->dp.set_lanes) {
+ ret = cdns_torrent_dp_set_lanes(cdns_phy, &opts->dp);
+ if (ret) {
+ dev_err(&phy->dev, "cdns_torrent_dp_set_lanes failed\n");
+ return ret;
+ }
+ }
+
+ if (opts->dp.set_rate) {
+ ret = cdns_torrent_dp_set_rate(cdns_phy, &opts->dp);
+ if (ret) {
+ dev_err(&phy->dev, "cdns_torrent_dp_set_rate failed\n");
+ return ret;
+ }
+ }
+
+ if (opts->dp.set_voltages)
+ cdns_torrent_dp_set_voltages(cdns_phy, &opts->dp);
+
+ return ret;
+}
+
+static int cdns_torrent_phy_on(struct phy *phy)
+{
+ struct cdns_torrent_inst *inst = phy_get_drvdata(phy);
+ struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(phy->dev.parent);
+ u32 read_val;
+ int ret;
+
+ if (cdns_phy->nsubnodes == 1) {
+ /* Take the PHY lane group out of reset */
+ reset_control_deassert(inst->lnk_rst);
+
+ /* Take the PHY out of reset */
+ ret = reset_control_deassert(cdns_phy->phy_rst);
+ if (ret)
+ return ret;
+ }
+
+ /*
+ * Wait for cmn_ready assertion
+ * PHY_PMA_CMN_CTRL1[0] == 1
+ */
+ ret = regmap_field_read_poll_timeout(cdns_phy->phy_pma_cmn_ctrl_1,
+ read_val, read_val, 1000,
+ PLL_LOCK_TIMEOUT);
+ if (ret) {
+ dev_err(cdns_phy->dev, "Timeout waiting for CMN ready\n");
+ return ret;
+ }
+
+ mdelay(10);
+
+ return 0;
+}
+
+static int cdns_torrent_phy_off(struct phy *phy)
+{
+ struct cdns_torrent_inst *inst = phy_get_drvdata(phy);
+ struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(phy->dev.parent);
+ int ret;
+
+ if (cdns_phy->nsubnodes != 1)
+ return 0;
+
+ ret = reset_control_assert(cdns_phy->phy_rst);
+ if (ret)
+ return ret;
+
+ return reset_control_assert(inst->lnk_rst);
+}
+
+static int cdns_torrent_dp_init(struct phy *phy)
+{
+ unsigned char lane_bits;
+ int ret;
+ struct cdns_torrent_inst *inst = phy_get_drvdata(phy);
+ struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(phy->dev.parent);
+ struct regmap *regmap = cdns_phy->regmap_dptx_phy_reg;
+
+ switch (cdns_phy->ref_clk_rate) {
+ case REF_CLK_19_2MHZ:
+ case REF_CLK_25MHZ:
+ /* Valid Ref Clock Rate */
+ break;
+ default:
+ dev_err(cdns_phy->dev, "Unsupported Ref Clock Rate\n");
+ return -EINVAL;
+ }
+
+ cdns_torrent_dp_write(regmap, PHY_AUX_CTRL, 0x0003); /* enable AUX */
+
+ /* PHY PMA registers configuration function */
+ cdns_torrent_dp_pma_cfg(cdns_phy, inst);
+
+ /*
+ * Set lines power state to A0
+ * Set lines pll clk enable to 0
+ */
+ cdns_torrent_dp_set_a0_pll(cdns_phy, inst->num_lanes);
+
+ /*
+ * release phy_l0*_reset_n and pma_tx_elec_idle_ln_* based on
+ * used lanes
+ */
+ lane_bits = (1 << inst->num_lanes) - 1;
+ cdns_torrent_dp_write(regmap, PHY_RESET,
+ ((0xF & ~lane_bits) << 4) | (0xF & lane_bits));
+
+ /* release pma_xcvr_pllclk_en_ln_*, only for the master lane */
+ cdns_torrent_dp_write(regmap, PHY_PMA_XCVR_PLLCLK_EN, 0x0001);
+
+ /* PHY PMA registers configuration functions */
+ /* Initialize PHY with max supported link rate, without SSC. */
+ if (cdns_phy->ref_clk_rate == REF_CLK_19_2MHZ)
+ cdns_torrent_dp_pma_cmn_vco_cfg_19_2mhz(cdns_phy,
+ cdns_phy->max_bit_rate,
+ false);
+ else if (cdns_phy->ref_clk_rate == REF_CLK_25MHZ)
+ cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(cdns_phy,
+ cdns_phy->max_bit_rate,
+ false);
+ cdns_torrent_dp_pma_cmn_rate(cdns_phy, cdns_phy->max_bit_rate,
+ inst->num_lanes);
+
+ /* take out of reset */
+ regmap_field_write(cdns_phy->phy_reset_ctrl, 0x1);
+
+ cdns_torrent_phy_on(phy);
+
+ ret = cdns_torrent_dp_wait_pma_cmn_ready(cdns_phy);
+ if (ret)
+ return ret;
+
+ ret = cdns_torrent_dp_run(cdns_phy, inst->num_lanes);
+
+ return ret;
+}
+
static int cdns_torrent_derived_refclk_enable(struct clk_hw *hw)
{
struct cdns_torrent_derived_refclk *derived_refclk = to_cdns_torrent_derived_refclk(hw);
@@ -1764,56 +1762,6 @@ static int cdns_torrent_derived_refclk_register(struct cdns_torrent_phy *cdns_ph
return 0;
}
-static int cdns_torrent_phy_on(struct phy *phy)
-{
- struct cdns_torrent_inst *inst = phy_get_drvdata(phy);
- struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(phy->dev.parent);
- u32 read_val;
- int ret;
-
- if (cdns_phy->nsubnodes == 1) {
- /* Take the PHY lane group out of reset */
- reset_control_deassert(inst->lnk_rst);
-
- /* Take the PHY out of reset */
- ret = reset_control_deassert(cdns_phy->phy_rst);
- if (ret)
- return ret;
- }
-
- /*
- * Wait for cmn_ready assertion
- * PHY_PMA_CMN_CTRL1[0] == 1
- */
- ret = regmap_field_read_poll_timeout(cdns_phy->phy_pma_cmn_ctrl_1,
- read_val, read_val, 1000,
- PLL_LOCK_TIMEOUT);
- if (ret) {
- dev_err(cdns_phy->dev, "Timeout waiting for CMN ready\n");
- return ret;
- }
-
- mdelay(10);
-
- return 0;
-}
-
-static int cdns_torrent_phy_off(struct phy *phy)
-{
- struct cdns_torrent_inst *inst = phy_get_drvdata(phy);
- struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(phy->dev.parent);
- int ret;
-
- if (cdns_phy->nsubnodes != 1)
- return 0;
-
- ret = reset_control_assert(cdns_phy->phy_rst);
- if (ret)
- return ret;
-
- return reset_control_assert(inst->lnk_rst);
-}
-
static struct regmap *cdns_regmap_init(struct device *dev, void __iomem *base,
u32 block_offset,
u8 reg_offset_shift,
@@ -2091,6 +2039,27 @@ static int cdns_torrent_phy_init(struct phy *phy)
return 0;
}
+static const struct phy_ops cdns_torrent_phy_ops = {
+ .init = cdns_torrent_phy_init,
+ .configure = cdns_torrent_dp_configure,
+ .power_on = cdns_torrent_phy_on,
+ .power_off = cdns_torrent_phy_off,
+ .owner = THIS_MODULE,
+};
+
+static int cdns_torrent_noop_phy_on(struct phy *phy)
+{
+ /* Give 5ms to 10ms delay for the PIPE clock to be stable */
+ usleep_range(5000, 10000);
+
+ return 0;
+}
+
+static const struct phy_ops noop_ops = {
+ .power_on = cdns_torrent_noop_phy_on,
+ .owner = THIS_MODULE,
+};
+
static
int cdns_torrent_phy_configure_multilink(struct cdns_torrent_phy *cdns_phy)
{