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authorPali Rohár <pali@kernel.org>2022-02-04 00:44:40 +0300
committerVinod Koul <vkoul@kernel.org>2022-02-25 16:42:20 +0300
commit4bf18d5a2dd02db8c5b16a2cfae513510506df5b (patch)
treefdefc01674b6cc598a35081ba653b23c8afdcda5 /drivers/phy
parent32942d33d63d27714ed16a4176e5a99547adb6e0 (diff)
downloadlinux-4bf18d5a2dd02db8c5b16a2cfae513510506df5b.tar.xz
phy: marvell: phy-mvebu-a3700-comphy: Remove port from driver configuration
Port number is encoded into argument for SMC call. It is zero for SATA, PCIe and also both USB 3.0 PHYs. It is non-zero only for Ethernet PHY (incorrectly called SGMII) on lane 0. Ethernet PHY on lane 1 also uses zero port number. So construct "port" bits for SMC call argument can be constructed directly from PHY type and lane number. Change driver code to always pass zero port number for non-ethernet PHYs and for ethernet PHYs determinate port number from lane number. This simplifies the driver. As port number from DT PHY configuration is not used anymore, remove whole driver code which parses it. This also simplifies the driver. Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <kabel@kernel.org> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/r/20220203214444.1508-2-kabel@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy')
-rw-r--r--drivers/phy/marvell/phy-mvebu-a3700-comphy.c62
1 files changed, 29 insertions, 33 deletions
diff --git a/drivers/phy/marvell/phy-mvebu-a3700-comphy.c b/drivers/phy/marvell/phy-mvebu-a3700-comphy.c
index 6781488cfc58..dbb2d4308851 100644
--- a/drivers/phy/marvell/phy-mvebu-a3700-comphy.c
+++ b/drivers/phy/marvell/phy-mvebu-a3700-comphy.c
@@ -20,7 +20,6 @@
#include <linux/platform_device.h>
#define MVEBU_A3700_COMPHY_LANES 3
-#define MVEBU_A3700_COMPHY_PORTS 2
/* COMPHY Fast SMC function identifiers */
#define COMPHY_SIP_POWER_ON 0x82000001
@@ -45,51 +44,47 @@
#define COMPHY_FW_NET(mode, idx, speed) (COMPHY_FW_MODE(mode) | \
((idx) << 8) | \
((speed) << 2))
-#define COMPHY_FW_PCIE(mode, idx, speed, width) (COMPHY_FW_NET(mode, idx, speed) | \
+#define COMPHY_FW_PCIE(mode, speed, width) (COMPHY_FW_NET(mode, 0, speed) | \
((width) << 18))
struct mvebu_a3700_comphy_conf {
unsigned int lane;
enum phy_mode mode;
int submode;
- unsigned int port;
u32 fw_mode;
};
-#define MVEBU_A3700_COMPHY_CONF(_lane, _mode, _smode, _port, _fw) \
+#define MVEBU_A3700_COMPHY_CONF(_lane, _mode, _smode, _fw) \
{ \
.lane = _lane, \
.mode = _mode, \
.submode = _smode, \
- .port = _port, \
.fw_mode = _fw, \
}
-#define MVEBU_A3700_COMPHY_CONF_GEN(_lane, _mode, _port, _fw) \
- MVEBU_A3700_COMPHY_CONF(_lane, _mode, PHY_INTERFACE_MODE_NA, _port, _fw)
+#define MVEBU_A3700_COMPHY_CONF_GEN(_lane, _mode, _fw) \
+ MVEBU_A3700_COMPHY_CONF(_lane, _mode, PHY_INTERFACE_MODE_NA, _fw)
-#define MVEBU_A3700_COMPHY_CONF_ETH(_lane, _smode, _port, _fw) \
- MVEBU_A3700_COMPHY_CONF(_lane, PHY_MODE_ETHERNET, _smode, _port, _fw)
+#define MVEBU_A3700_COMPHY_CONF_ETH(_lane, _smode, _fw) \
+ MVEBU_A3700_COMPHY_CONF(_lane, PHY_MODE_ETHERNET, _smode, _fw)
static const struct mvebu_a3700_comphy_conf mvebu_a3700_comphy_modes[] = {
/* lane 0 */
- MVEBU_A3700_COMPHY_CONF_GEN(0, PHY_MODE_USB_HOST_SS, 0,
+ MVEBU_A3700_COMPHY_CONF_GEN(0, PHY_MODE_USB_HOST_SS,
COMPHY_FW_MODE_USB3H),
- MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_SGMII, 1,
+ MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_SGMII,
COMPHY_FW_MODE_SGMII),
- MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_2500BASEX, 1,
+ MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_2500BASEX,
COMPHY_FW_MODE_2500BASEX),
/* lane 1 */
- MVEBU_A3700_COMPHY_CONF_GEN(1, PHY_MODE_PCIE, 0,
- COMPHY_FW_MODE_PCIE),
- MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_SGMII, 0,
+ MVEBU_A3700_COMPHY_CONF_GEN(1, PHY_MODE_PCIE, COMPHY_FW_MODE_PCIE),
+ MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_SGMII,
COMPHY_FW_MODE_SGMII),
- MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_2500BASEX, 0,
+ MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_2500BASEX,
COMPHY_FW_MODE_2500BASEX),
/* lane 2 */
- MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_SATA, 0,
- COMPHY_FW_MODE_SATA),
- MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_USB_HOST_SS, 0,
+ MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_SATA, COMPHY_FW_MODE_SATA),
+ MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_USB_HOST_SS,
COMPHY_FW_MODE_USB3H),
};
@@ -98,7 +93,6 @@ struct mvebu_a3700_comphy_lane {
unsigned int id;
enum phy_mode mode;
int submode;
- int port;
};
static int mvebu_a3700_comphy_smc(unsigned long function, unsigned long lane,
@@ -120,7 +114,7 @@ static int mvebu_a3700_comphy_smc(unsigned long function, unsigned long lane,
}
}
-static int mvebu_a3700_comphy_get_fw_mode(int lane, int port,
+static int mvebu_a3700_comphy_get_fw_mode(int lane,
enum phy_mode mode,
int submode)
{
@@ -132,7 +126,6 @@ static int mvebu_a3700_comphy_get_fw_mode(int lane, int port,
for (i = 0; i < n; i++) {
if (mvebu_a3700_comphy_modes[i].lane == lane &&
- mvebu_a3700_comphy_modes[i].port == port &&
mvebu_a3700_comphy_modes[i].mode == mode &&
mvebu_a3700_comphy_modes[i].submode == submode)
break;
@@ -153,7 +146,7 @@ static int mvebu_a3700_comphy_set_mode(struct phy *phy, enum phy_mode mode,
if (submode == PHY_INTERFACE_MODE_1000BASEX)
submode = PHY_INTERFACE_MODE_SGMII;
- fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id, lane->port, mode,
+ fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id, mode,
submode);
if (fw_mode < 0) {
dev_err(lane->dev, "invalid COMPHY mode\n");
@@ -172,9 +165,10 @@ static int mvebu_a3700_comphy_power_on(struct phy *phy)
struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy);
u32 fw_param;
int fw_mode;
+ int fw_port;
int ret;
- fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id, lane->port,
+ fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id,
lane->mode, lane->submode);
if (fw_mode < 0) {
dev_err(lane->dev, "invalid COMPHY mode\n");
@@ -191,17 +185,18 @@ static int mvebu_a3700_comphy_power_on(struct phy *phy)
fw_param = COMPHY_FW_MODE(fw_mode);
break;
case PHY_MODE_ETHERNET:
+ fw_port = (lane->id == 0) ? 1 : 0;
switch (lane->submode) {
case PHY_INTERFACE_MODE_SGMII:
dev_dbg(lane->dev, "set lane %d to SGMII mode\n",
lane->id);
- fw_param = COMPHY_FW_NET(fw_mode, lane->port,
+ fw_param = COMPHY_FW_NET(fw_mode, fw_port,
COMPHY_FW_SPEED_1_25G);
break;
case PHY_INTERFACE_MODE_2500BASEX:
dev_dbg(lane->dev, "set lane %d to 2500BASEX mode\n",
lane->id);
- fw_param = COMPHY_FW_NET(fw_mode, lane->port,
+ fw_param = COMPHY_FW_NET(fw_mode, fw_port,
COMPHY_FW_SPEED_3_125G);
break;
default:
@@ -212,8 +207,7 @@ static int mvebu_a3700_comphy_power_on(struct phy *phy)
break;
case PHY_MODE_PCIE:
dev_dbg(lane->dev, "set lane %d to PCIe mode\n", lane->id);
- fw_param = COMPHY_FW_PCIE(fw_mode, lane->port,
- COMPHY_FW_SPEED_5G,
+ fw_param = COMPHY_FW_PCIE(fw_mode, COMPHY_FW_SPEED_5G,
phy->attrs.bus_width);
break;
default:
@@ -247,17 +241,20 @@ static struct phy *mvebu_a3700_comphy_xlate(struct device *dev,
struct of_phandle_args *args)
{
struct mvebu_a3700_comphy_lane *lane;
+ unsigned int port;
struct phy *phy;
- if (WARN_ON(args->args[0] >= MVEBU_A3700_COMPHY_PORTS))
- return ERR_PTR(-EINVAL);
-
phy = of_phy_simple_xlate(dev, args);
if (IS_ERR(phy))
return phy;
lane = phy_get_drvdata(phy);
- lane->port = args->args[0];
+
+ port = args->args[0];
+ if (port != 0 && (port != 1 || lane->id != 0)) {
+ dev_err(lane->dev, "invalid port number %u\n", port);
+ return ERR_PTR(-EINVAL);
+ }
return phy;
}
@@ -302,7 +299,6 @@ static int mvebu_a3700_comphy_probe(struct platform_device *pdev)
lane->mode = PHY_MODE_INVALID;
lane->submode = PHY_INTERFACE_MODE_NA;
lane->id = lane_id;
- lane->port = -1;
phy_set_drvdata(phy, lane);
}