i2c: i801: Improve handling of chip-specific feature definitions

Reduce source code and code size by defining the chip features
statically.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

1 files changed, 66 insertions, 125 deletions

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 8af502394f46..720f7e9d0de9 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -997,66 +997,72 @@ static const struct i2c_algorithm smbus_algorithm = {
 	.functionality	= i801_func,
 };
 
+#define FEATURES_ICH5	(FEATURE_BLOCK_PROC | FEATURE_I2C_BLOCK_READ	| \
+			 FEATURE_IRQ | FEATURE_SMBUS_PEC		| \
+			 FEATURE_BLOCK_BUFFER | FEATURE_HOST_NOTIFY)
+#define FEATURES_ICH4	(FEATURE_SMBUS_PEC | FEATURE_BLOCK_BUFFER | \
+			 FEATURE_HOST_NOTIFY)
+
 static const struct pci_device_id i801_ids[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_3) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_3) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_2) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_3) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_3) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_3) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_4) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_16) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_17) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_17) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_5) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_6) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EP80579_1) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_4) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_5) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5_3400_SERIES_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COUGARPOINT_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF0) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF1) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF2) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_DH89XXCC_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PANTHERPOINT_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNXPOINT_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_AVOTON_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS0) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COLETOCREEK_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GEMINILAKE_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BAYTRAIL_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BRASWELL_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CDF_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_DNV_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EBG_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BROXTON_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CANNONLAKE_LP_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICELAKE_N_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COMETLAKE_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COMETLAKE_H_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COMETLAKE_V_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TIGERLAKE_LP_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TIGERLAKE_H_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_JASPER_LAKE_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ALDER_LAKE_S_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ALDER_LAKE_P_SMBUS) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ALDER_LAKE_M_SMBUS) },
+	{ PCI_DEVICE_DATA(INTEL, 82801AA_3,		0)				 },
+	{ PCI_DEVICE_DATA(INTEL, 82801AB_3,		0)				 },
+	{ PCI_DEVICE_DATA(INTEL, 82801BA_2,		0)				 },
+	{ PCI_DEVICE_DATA(INTEL, 82801CA_3,		FEATURE_HOST_NOTIFY)		 },
+	{ PCI_DEVICE_DATA(INTEL, 82801DB_3,		FEATURES_ICH4)			 },
+	{ PCI_DEVICE_DATA(INTEL, 82801EB_3,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, ESB_4,			FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, ICH6_16,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, ICH7_17,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, ESB2_17,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, ICH8_5,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, ICH9_6,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, EP80579_1,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, ICH10_4,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, ICH10_5,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, 5_3400_SERIES_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, COUGARPOINT_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, PATSBURG_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, PATSBURG_SMBUS_IDF0,	FEATURES_ICH5 | FEATURE_IDF)	 },
+	{ PCI_DEVICE_DATA(INTEL, PATSBURG_SMBUS_IDF1,	FEATURES_ICH5 | FEATURE_IDF)	 },
+	{ PCI_DEVICE_DATA(INTEL, PATSBURG_SMBUS_IDF2,	FEATURES_ICH5 | FEATURE_IDF)	 },
+	{ PCI_DEVICE_DATA(INTEL, DH89XXCC_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, PANTHERPOINT_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, LYNXPOINT_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, LYNXPOINT_LP_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, AVOTON_SMBUS,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, WELLSBURG_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, WELLSBURG_SMBUS_MS0,	FEATURES_ICH5 | FEATURE_IDF)	 },
+	{ PCI_DEVICE_DATA(INTEL, WELLSBURG_SMBUS_MS1,	FEATURES_ICH5 | FEATURE_IDF)	 },
+	{ PCI_DEVICE_DATA(INTEL, WELLSBURG_SMBUS_MS2,	FEATURES_ICH5 | FEATURE_IDF)	 },
+	{ PCI_DEVICE_DATA(INTEL, COLETOCREEK_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, GEMINILAKE_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, WILDCATPOINT_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, WILDCATPOINT_LP_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, BAYTRAIL_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, BRASWELL_SMBUS,	FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, SUNRISEPOINT_H_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_SPT) },
+	{ PCI_DEVICE_DATA(INTEL, SUNRISEPOINT_LP_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_SPT) },
+	{ PCI_DEVICE_DATA(INTEL, CDF_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, DNV_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_SPT) },
+	{ PCI_DEVICE_DATA(INTEL, EBG_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, BROXTON_SMBUS,		FEATURES_ICH5)			 },
+	{ PCI_DEVICE_DATA(INTEL, LEWISBURG_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_SPT) },
+	{ PCI_DEVICE_DATA(INTEL, LEWISBURG_SSKU_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_SPT) },
+	{ PCI_DEVICE_DATA(INTEL, KABYLAKE_PCH_H_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_SPT) },
+	{ PCI_DEVICE_DATA(INTEL, CANNONLAKE_H_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, CANNONLAKE_LP_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, ICELAKE_LP_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, ICELAKE_N_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, COMETLAKE_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, COMETLAKE_H_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, COMETLAKE_V_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_SPT) },
+	{ PCI_DEVICE_DATA(INTEL, ELKHART_LAKE_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, TIGERLAKE_LP_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, TIGERLAKE_H_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, JASPER_LAKE_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, ALDER_LAKE_S_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, ALDER_LAKE_P_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, ALDER_LAKE_M_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
 	{ 0, }
 };
 
@@ -1685,72 +1691,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	mutex_init(&priv->acpi_lock);
 
 	priv->pci_dev = dev;
-	switch (dev->device) {
-	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS:
-	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS:
-	case PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS:
-	case PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS:
-	case PCI_DEVICE_ID_INTEL_DNV_SMBUS:
-	case PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS:
-	case PCI_DEVICE_ID_INTEL_COMETLAKE_V_SMBUS:
-		priv->features |= FEATURE_BLOCK_PROC;
-		priv->features |= FEATURE_I2C_BLOCK_READ;
-		priv->features |= FEATURE_IRQ;
-		priv->features |= FEATURE_SMBUS_PEC;
-		priv->features |= FEATURE_BLOCK_BUFFER;
-		priv->features |= FEATURE_TCO_SPT;
-		priv->features |= FEATURE_HOST_NOTIFY;
-		break;
-
-	case PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS:
-	case PCI_DEVICE_ID_INTEL_CANNONLAKE_LP_SMBUS:
-	case PCI_DEVICE_ID_INTEL_CDF_SMBUS:
-	case PCI_DEVICE_ID_INTEL_ICELAKE_LP_SMBUS:
-	case PCI_DEVICE_ID_INTEL_ICELAKE_N_SMBUS:
-	case PCI_DEVICE_ID_INTEL_COMETLAKE_SMBUS:
-	case PCI_DEVICE_ID_INTEL_COMETLAKE_H_SMBUS:
-	case PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS:
-	case PCI_DEVICE_ID_INTEL_TIGERLAKE_LP_SMBUS:
-	case PCI_DEVICE_ID_INTEL_TIGERLAKE_H_SMBUS:
-	case PCI_DEVICE_ID_INTEL_JASPER_LAKE_SMBUS:
-	case PCI_DEVICE_ID_INTEL_EBG_SMBUS:
-	case PCI_DEVICE_ID_INTEL_ALDER_LAKE_S_SMBUS:
-	case PCI_DEVICE_ID_INTEL_ALDER_LAKE_P_SMBUS:
-	case PCI_DEVICE_ID_INTEL_ALDER_LAKE_M_SMBUS:
-		priv->features |= FEATURE_BLOCK_PROC;
-		priv->features |= FEATURE_I2C_BLOCK_READ;
-		priv->features |= FEATURE_IRQ;
-		priv->features |= FEATURE_SMBUS_PEC;
-		priv->features |= FEATURE_BLOCK_BUFFER;
-		priv->features |= FEATURE_TCO_CNL;
-		priv->features |= FEATURE_HOST_NOTIFY;
-		break;
-
-	case PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF0:
-	case PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF1:
-	case PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF2:
-	case PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS0:
-	case PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1:
-	case PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2:
-		priv->features |= FEATURE_IDF;
-		fallthrough;
-	default:
-		priv->features |= FEATURE_BLOCK_PROC;
-		priv->features |= FEATURE_I2C_BLOCK_READ;
-		priv->features |= FEATURE_IRQ;
-		fallthrough;
-	case PCI_DEVICE_ID_INTEL_82801DB_3:
-		priv->features |= FEATURE_SMBUS_PEC;
-		priv->features |= FEATURE_BLOCK_BUFFER;
-		fallthrough;
-	case PCI_DEVICE_ID_INTEL_82801CA_3:
-		priv->features |= FEATURE_HOST_NOTIFY;
-		fallthrough;
-	case PCI_DEVICE_ID_INTEL_82801BA_2:
-	case PCI_DEVICE_ID_INTEL_82801AB_3:
-	case PCI_DEVICE_ID_INTEL_82801AA_3:
-		break;
-	}
+	priv->features = id->driver_data;
 
 	/* Disable features on user request */
 	for (i = 0; i < ARRAY_SIZE(i801_feature_names); i++) {