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phy: cadence-torrent: Add separate regmap functions for torrent and DP

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Added separate functions for regmap initialization of torrent PHY
generic registers and DP specific registers.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600280911-9214-5-git-send-email-sjakhade@cadence.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Swapnil Jakhade 2020-09-16 20:28:28 +02:00 committed by Vinod Koul
parent 7c12b46c63
commit 2e70c84995
1 changed files with 66 additions and 33 deletions
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99
drivers/phy/cadence/phy-cadence-torrent.c
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@ -1584,7 +1584,24 @@ static struct regmap *cdns_regmap_init(struct device *dev, void __iomem *base,
return devm_regmap_init(dev, NULL, ctx, config);
}
static int cdns_regfield_init(struct cdns_torrent_phy *cdns_phy)
static int cdns_torrent_dp_regfield_init(struct cdns_torrent_phy *cdns_phy)
{
struct device *dev = cdns_phy->dev;
struct regmap_field *field;
struct regmap *regmap;
regmap = cdns_phy->regmap_dptx_phy_reg;
field = devm_regmap_field_alloc(dev, regmap, phy_reset_ctrl);
if (IS_ERR(field)) {
dev_err(dev, "PHY_RESET reg field init failed\n");
return PTR_ERR(field);
}
cdns_phy->phy_reset_ctrl = field;
return 0;
}
static int cdns_torrent_regfield_init(struct cdns_torrent_phy *cdns_phy)
{
struct device *dev = cdns_phy->dev;
struct regmap_field *field;
@ -1614,28 +1631,44 @@ static int cdns_regfield_init(struct cdns_torrent_phy *cdns_phy)
}
cdns_phy->phy_pma_pll_raw_ctrl = field;
regmap = cdns_phy->regmap_dptx_phy_reg;
field = devm_regmap_field_alloc(dev, regmap, phy_reset_ctrl);
if (IS_ERR(field)) {
dev_err(dev, "PHY_RESET reg field init failed\n");
return PTR_ERR(field);
return 0;
}
static int cdns_torrent_dp_regmap_init(struct cdns_torrent_phy *cdns_phy)
{
void __iomem *base = cdns_phy->base;
struct device *dev = cdns_phy->dev;
struct regmap *regmap;
u8 reg_offset_shift;
u32 block_offset;
reg_offset_shift = cdns_phy->init_data->reg_offset_shift;
block_offset = TORRENT_DPTX_PHY_OFFSET;
regmap = cdns_regmap_init(dev, base, block_offset,
reg_offset_shift,
&cdns_torrent_dptx_phy_config);
if (IS_ERR(regmap)) {
dev_err(dev, "Failed to init DPTX PHY regmap\n");
return PTR_ERR(regmap);
}
cdns_phy->phy_reset_ctrl = field;
cdns_phy->regmap_dptx_phy_reg = regmap;
return 0;
}
static int cdns_regmap_init_torrent_dp(struct cdns_torrent_phy *cdns_phy,
void __iomem *sd_base,
void __iomem *base,
u8 block_offset_shift,
u8 reg_offset_shift)
static int cdns_torrent_regmap_init(struct cdns_torrent_phy *cdns_phy)
{
void __iomem *sd_base = cdns_phy->sd_base;
u8 block_offset_shift, reg_offset_shift;
struct device *dev = cdns_phy->dev;
struct regmap *regmap;
u32 block_offset;
int i;
block_offset_shift = cdns_phy->init_data->block_offset_shift;
reg_offset_shift = cdns_phy->init_data->reg_offset_shift;
for (i = 0; i < MAX_NUM_LANES; i++) {
block_offset = TORRENT_TX_LANE_CDB_OFFSET(i, block_offset_shift,
reg_offset_shift);
@ -1690,16 +1723,6 @@ static int cdns_regmap_init_torrent_dp(struct cdns_torrent_phy *cdns_phy,
}
cdns_phy->regmap_phy_pma_common_cdb = regmap;
block_offset = TORRENT_DPTX_PHY_OFFSET;
regmap = cdns_regmap_init(dev, base, block_offset,
reg_offset_shift,
&cdns_torrent_dptx_phy_config);
if (IS_ERR(regmap)) {
dev_err(dev, "Failed to init DPTX PHY regmap\n");
return PTR_ERR(regmap);
}
cdns_phy->regmap_dptx_phy_reg = regmap;
return 0;
}
@ -1711,6 +1734,7 @@ static int cdns_torrent_phy_probe(struct platform_device *pdev)
const struct cdns_torrent_data *data;
struct device_node *child;
int ret, subnodes, node = 0, i;
u8 init_dp_regmap = 0;
/* Get init data for this PHY */
data = of_device_get_match_data(dev);
@ -1748,6 +1772,14 @@ static int cdns_torrent_phy_probe(struct platform_device *pdev)
return -EINVAL;
}
ret = cdns_torrent_regmap_init(cdns_phy);
if (ret)
return ret;
ret = cdns_torrent_regfield_init(cdns_phy);
if (ret)
return ret;
for_each_available_child_of_node(dev->of_node, child) {
struct phy *gphy;
@ -1830,6 +1862,18 @@ static int cdns_torrent_phy_probe(struct platform_device *pdev)
goto put_child;
}
if (!init_dp_regmap) {
ret = cdns_torrent_dp_regmap_init(cdns_phy);
if (ret)
goto put_child;
ret = cdns_torrent_dp_regfield_init(cdns_phy);
if (ret)
goto put_child;
init_dp_regmap++;
}
dev_info(dev, "%d lanes, max bit rate %d.%03d Gbps\n",
cdns_phy->phys[node].num_lanes,
cdns_phy->max_bit_rate / 1000,
@ -1846,17 +1890,6 @@ static int cdns_torrent_phy_probe(struct platform_device *pdev)
}
cdns_phy->nsubnodes = node;
ret = cdns_regmap_init_torrent_dp(cdns_phy, cdns_phy->sd_base,
cdns_phy->base,
data->block_offset_shift,
data->reg_offset_shift);
if (ret)
goto put_lnk_rst;
ret = cdns_regfield_init(cdns_phy);
if (ret)
goto put_lnk_rst;
phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
if (IS_ERR(phy_provider)) {
ret = PTR_ERR(phy_provider);