Merge tag 'mfd-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add Cirrus Logic Madera Codec (CS47L35, CS47L85 and CS47L90/91) driver
   - Add ChromeOS EC CEC driver
   - Add ROHM BD71837 PMIC driver

  New Device Support:
   - Add support for Dialog Semi DA9063L PMIC variant to DA9063
   - Add support for Intel Ice Lake to Intel-PLSS-PCI
   - Add support for X-Powers AXP806 to AXP20x

  New Functionality:
   - Add support for USB Charging to the ChromeOS Embedded Controller
   - Add support for HDMI CEC to the ChromeOS Embedded Controller
   - Add support for HDMI CEC to Intel HDMI
   - Add support for accessory detection to Madera devices
   - Allow individual pins to be configured via DT' wlf,csnaddr-pd
   - Provide legacy platform specific EEPROM/Watchdog commands; rave-sp

  Fix-upsL
   - Trivial renaming/spelling fixes; cros_ec, da9063-*
   - Convert to Managed Resources (devm_*); da9063-*, ti_am335x_tscadc
   - Transition to helper macros/functions; da9063-*
   - Constify; kempld-core
   - Improve error path/messages; wm8994-core
   - Disable IRQs locally instead of relying on USB subsystem; dln2
   - Remove unused code; rave-sp
   - New exports; sec-core

  Bug Fixes:
   - Fix possible false I2C transaction error; arizona-core
   - Fix declared memory area size; hi655x-pmic
   - Fix checksum type; rave-sp
   - Fix incorrect default serial port configuration: rave-sp
   - Fix incorrect coherent DMA mask for sub-devices; sm501"

* tag 'mfd-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (60 commits)
  mfd: madera: Add register definitions for accessory detect
  mfd: sm501: Set coherent_dma_mask when creating subdevices
  mfd: bd71837: Devicetree bindings for ROHM BD71837 PMIC
  mfd: bd71837: Core driver for ROHM BD71837 PMIC
  media: platform: cros-ec-cec: Fix dependency on MFD_CROS_EC
  mfd: sec-core: Export OF module alias table
  mfd: as3722: Disable auto-power-on when AC OK
  mfd: axp20x: Support AXP806 in I2C mode
  mfd: axp20x: Add self-working mode support for AXP806
  dt-bindings: mfd: axp20x: Add "self-working" mode for AXP806
  mfd: wm8994: Allow to configure CS/ADDR Pulldown from dts
  mfd: wm8994: Allow to configure Speaker Mode Pullup from dts
  mfd: rave-sp: Emulate CMD_GET_STATUS on device that don't support it
  mfd: rave-sp: Add legacy watchdog ping command translation
  mfd: rave-sp: Add legacy EEPROM access command translation
  mfd: rave-sp: Initialize flow control and parity of the port
  mfd: rave-sp: Fix incorrectly specified checksum type
  mfd: rave-sp: Remove unused defines
  mfd: hi655x: Fix regmap area declared size for hi655x
  mfd: ti_am335x_tscadc: Fix struct clk memory leak
  ...

1 files changed, 75 insertions, 44 deletions

diff --git a/drivers/mfd/rave-sp.c b/drivers/mfd/rave-sp.c
index 36dcd98977d6..2a8369657e38 100644
--- a/drivers/mfd/rave-sp.c
+++ b/drivers/mfd/rave-sp.c
@@ -63,16 +63,6 @@
 #define RAVE_SP_TX_BUFFER_SIZE				\
 	(RAVE_SP_STX_ETX_SIZE + 2 * RAVE_SP_RX_BUFFER_SIZE)
 
-#define RAVE_SP_BOOT_SOURCE_GET		0
-#define RAVE_SP_BOOT_SOURCE_SET		1
-
-#define RAVE_SP_RDU2_BOARD_TYPE_RMB	0
-#define RAVE_SP_RDU2_BOARD_TYPE_DEB	1
-
-#define RAVE_SP_BOOT_SOURCE_SD		0
-#define RAVE_SP_BOOT_SOURCE_EMMC	1
-#define RAVE_SP_BOOT_SOURCE_NOR		2
-
 /**
  * enum rave_sp_deframer_state - Possible state for de-framer
  *
@@ -127,14 +117,44 @@ struct rave_sp_checksum {
 	void (*subroutine)(const u8 *, size_t, u8 *);
 };
 
+struct rave_sp_version {
+	u8     hardware;
+	__le16 major;
+	u8     minor;
+	u8     letter[2];
+} __packed;
+
+struct rave_sp_status {
+	struct rave_sp_version bootloader_version;
+	struct rave_sp_version firmware_version;
+	u16 rdu_eeprom_flag;
+	u16 dds_eeprom_flag;
+	u8  pic_flag;
+	u8  orientation;
+	u32 etc;
+	s16 temp[2];
+	u8  backlight_current[3];
+	u8  dip_switch;
+	u8  host_interrupt;
+	u16 voltage_28;
+	u8  i2c_device_status;
+	u8  power_status;
+	u8  general_status;
+	u8  deprecated1;
+	u8  power_led_status;
+	u8  deprecated2;
+	u8  periph_power_shutoff;
+} __packed;
+
 /**
  * struct rave_sp_variant_cmds - Variant specific command routines
  *
  * @translate:	Generic to variant specific command mapping routine
- *
+ * @get_status: Variant specific implementation of CMD_GET_STATUS
  */
 struct rave_sp_variant_cmds {
 	int (*translate)(enum rave_sp_command);
+	int (*get_status)(struct rave_sp *sp, struct rave_sp_status *);
 };
 
 /**
@@ -180,35 +200,6 @@ struct rave_sp {
 	const char *part_number_bootloader;
 };
 
-struct rave_sp_version {
-	u8     hardware;
-	__le16 major;
-	u8     minor;
-	u8     letter[2];
-} __packed;
-
-struct rave_sp_status {
-	struct rave_sp_version bootloader_version;
-	struct rave_sp_version firmware_version;
-	u16 rdu_eeprom_flag;
-	u16 dds_eeprom_flag;
-	u8  pic_flag;
-	u8  orientation;
-	u32 etc;
-	s16 temp[2];
-	u8  backlight_current[3];
-	u8  dip_switch;
-	u8  host_interrupt;
-	u16 voltage_28;
-	u8  i2c_device_status;
-	u8  power_status;
-	u8  general_status;
-	u8  deprecated1;
-	u8  power_led_status;
-	u8  deprecated2;
-	u8  periph_power_shutoff;
-} __packed;
-
 static bool rave_sp_id_is_event(u8 code)
 {
 	return (code & 0xF0) == RAVE_SP_EVNT_BASE;
@@ -641,10 +632,14 @@ static int rave_sp_default_cmd_translate(enum rave_sp_command command)
 		return 0x14;
 	case RAVE_SP_CMD_SW_WDT:
 		return 0x1C;
+	case RAVE_SP_CMD_PET_WDT:
+		return 0x1D;
 	case RAVE_SP_CMD_RESET:
 		return 0x1E;
 	case RAVE_SP_CMD_RESET_REASON:
 		return 0x1F;
+	case RAVE_SP_CMD_RMB_EEPROM:
+		return 0x20;
 	default:
 		return -EINVAL;
 	}
@@ -666,18 +661,44 @@ static const char *devm_rave_sp_version(struct device *dev,
 			      version->letter[1]);
 }
 
-static int rave_sp_get_status(struct rave_sp *sp)
+static int rave_sp_rdu1_get_status(struct rave_sp *sp,
+				   struct rave_sp_status *status)
 {
-	struct device *dev = &sp->serdev->dev;
 	u8 cmd[] = {
 		[0] = RAVE_SP_CMD_STATUS,
 		[1] = 0
 	};
+
+	return rave_sp_exec(sp, cmd, sizeof(cmd), status, sizeof(*status));
+}
+
+static int rave_sp_emulated_get_status(struct rave_sp *sp,
+				       struct rave_sp_status *status)
+{
+	u8 cmd[] = {
+		[0] = RAVE_SP_CMD_GET_FIRMWARE_VERSION,
+		[1] = 0,
+	};
+	int ret;
+
+	ret = rave_sp_exec(sp, cmd, sizeof(cmd), &status->firmware_version,
+			   sizeof(status->firmware_version));
+	if (ret)
+		return ret;
+
+	cmd[0] = RAVE_SP_CMD_GET_BOOTLOADER_VERSION;
+	return rave_sp_exec(sp, cmd, sizeof(cmd), &status->bootloader_version,
+			    sizeof(status->bootloader_version));
+}
+
+static int rave_sp_get_status(struct rave_sp *sp)
+{
+	struct device *dev = &sp->serdev->dev;
 	struct rave_sp_status status;
 	const char *version;
 	int ret;
 
-	ret = rave_sp_exec(sp, cmd, sizeof(cmd), &status, sizeof(status));
+	ret = sp->variant->cmd.get_status(sp, &status);
 	if (ret)
 		return ret;
 
@@ -707,9 +728,10 @@ static const struct rave_sp_checksum rave_sp_checksum_ccitt = {
 };
 
 static const struct rave_sp_variant rave_sp_legacy = {
-	.checksum = &rave_sp_checksum_8b2c,
+	.checksum = &rave_sp_checksum_ccitt,
 	.cmd = {
 		.translate = rave_sp_default_cmd_translate,
+		.get_status = rave_sp_emulated_get_status,
 	},
 };
 
@@ -717,6 +739,7 @@ static const struct rave_sp_variant rave_sp_rdu1 = {
 	.checksum = &rave_sp_checksum_8b2c,
 	.cmd = {
 		.translate = rave_sp_rdu1_cmd_translate,
+		.get_status = rave_sp_rdu1_get_status,
 	},
 };
 
@@ -724,6 +747,7 @@ static const struct rave_sp_variant rave_sp_rdu2 = {
 	.checksum = &rave_sp_checksum_ccitt,
 	.cmd = {
 		.translate = rave_sp_rdu2_cmd_translate,
+		.get_status = rave_sp_emulated_get_status,
 	},
 };
 
@@ -776,6 +800,13 @@ static int rave_sp_probe(struct serdev_device *serdev)
 		return ret;
 
 	serdev_device_set_baudrate(serdev, baud);
+	serdev_device_set_flow_control(serdev, false);
+
+	ret = serdev_device_set_parity(serdev, SERDEV_PARITY_NONE);
+	if (ret) {
+		dev_err(dev, "Failed to set parity\n");
+		return ret;
+	}
 
 	ret = rave_sp_get_status(sp);
 	if (ret) {