Add cs42l43 PC focused SoundWire CODEC

Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

This patch chain adds support for the Cirrus Logic cs42l43 PC focused
SoundWire CODEC. The chain is currently based of Lee's for-mfd-next
branch.

This series is mostly just a resend keeping pace with the kernel under
it, except for a minor fixup in the ASoC stuff.

Thanks,
Charles

Charles Keepax (4):
  dt-bindings: mfd: cirrus,cs42l43: Add initial DT binding
  mfd: cs42l43: Add support for cs42l43 core driver
  pinctrl: cs42l43: Add support for the cs42l43
  ASoC: cs42l43: Add support for the cs42l43

Lucas Tanure (2):
  soundwire: bus: Allow SoundWire peripherals to register IRQ handlers
  spi: cs42l43: Add SPI controller support

 .../bindings/sound/cirrus,cs42l43.yaml        |  313 +++
 MAINTAINERS                                   |    4 +
 drivers/mfd/Kconfig                           |   23 +
 drivers/mfd/Makefile                          |    3 +
 drivers/mfd/cs42l43-i2c.c                     |   98 +
 drivers/mfd/cs42l43-sdw.c                     |  239 ++
 drivers/mfd/cs42l43.c                         | 1188 +++++++++
 drivers/mfd/cs42l43.h                         |   28 +
 drivers/pinctrl/cirrus/Kconfig                |   11 +
 drivers/pinctrl/cirrus/Makefile               |    2 +
 drivers/pinctrl/cirrus/pinctrl-cs42l43.c      |  609 +++++
 drivers/soundwire/bus.c                       |   32 +
 drivers/soundwire/bus_type.c                  |   12 +
 drivers/spi/Kconfig                           |    7 +
 drivers/spi/Makefile                          |    1 +
 drivers/spi/spi-cs42l43.c                     |  284 ++
 include/linux/mfd/cs42l43-regs.h              | 1184 +++++++++
 include/linux/mfd/cs42l43.h                   |  102 +
 include/linux/soundwire/sdw.h                 |    9 +
 include/sound/cs42l43.h                       |   17 +
 sound/soc/codecs/Kconfig                      |   16 +
 sound/soc/codecs/Makefile                     |    4 +
 sound/soc/codecs/cs42l43-jack.c               |  946 +++++++
 sound/soc/codecs/cs42l43-sdw.c                |   74 +
 sound/soc/codecs/cs42l43.c                    | 2278 +++++++++++++++++
 sound/soc/codecs/cs42l43.h                    |  131 +
 26 files changed, 7615 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml
 create mode 100644 drivers/mfd/cs42l43-i2c.c
 create mode 100644 drivers/mfd/cs42l43-sdw.c
 create mode 100644 drivers/mfd/cs42l43.c
 create mode 100644 drivers/mfd/cs42l43.h
 create mode 100644 drivers/pinctrl/cirrus/pinctrl-cs42l43.c
 create mode 100644 drivers/spi/spi-cs42l43.c
 create mode 100644 include/linux/mfd/cs42l43-regs.h
 create mode 100644 include/linux/mfd/cs42l43.h
 create mode 100644 include/sound/cs42l43.h
 create mode 100644 sound/soc/codecs/cs42l43-jack.c
 create mode 100644 sound/soc/codecs/cs42l43-sdw.c
 create mode 100644 sound/soc/codecs/cs42l43.c
 create mode 100644 sound/soc/codecs/cs42l43.h

--
2.30.2

1 files changed, 13 insertions, 10 deletions

diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c
index 96d856b9043c..19a0b8584afb 100644
--- a/drivers/net/ethernet/sfc/selftest.c
+++ b/drivers/net/ethernet/sfc/selftest.c
@@ -43,15 +43,16 @@
  */
 struct efx_loopback_payload {
 	char pad[2]; /* Ensures ip is 4-byte aligned */
-	struct ethhdr header;
-	struct iphdr ip;
-	struct udphdr udp;
-	__be16 iteration;
-	char msg[64];
+	struct_group_attr(packet, __packed,
+		struct ethhdr header;
+		struct iphdr ip;
+		struct udphdr udp;
+		__be16 iteration;
+		char msg[64];
+	);
 } __packed __aligned(4);
-#define EFX_LOOPBACK_PAYLOAD_LEN	(sizeof(struct efx_loopback_payload) - \
-					 offsetof(struct efx_loopback_payload, \
-						  header))
+#define EFX_LOOPBACK_PAYLOAD_LEN	\
+		sizeof_field(struct efx_loopback_payload, packet)
 
 /* Loopback test source MAC address */
 static const u8 payload_source[ETH_ALEN] __aligned(2) = {
@@ -297,7 +298,7 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
 
 	payload = &state->payload;
 
-	memcpy(&received.header, buf_ptr,
+	memcpy(&received.packet, buf_ptr,
 	       min_t(int, pkt_len, EFX_LOOPBACK_PAYLOAD_LEN));
 	received.ip.saddr = payload->ip.saddr;
 	if (state->offload_csum)
@@ -368,7 +369,7 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
 			       buf_ptr, pkt_len, 0);
 		netif_err(efx, drv, efx->net_dev, "expected packet:\n");
 		print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 0x10, 1,
-			       &state->payload.header, EFX_LOOPBACK_PAYLOAD_LEN,
+			       &state->payload.packet, EFX_LOOPBACK_PAYLOAD_LEN,
 			       0);
 	}
 #endif
@@ -438,6 +439,8 @@ static int efx_begin_loopback(struct efx_tx_queue *tx_queue)
 		payload->ip.saddr = htonl(INADDR_LOOPBACK | (i << 2));
 		/* Strip off the leading padding */
 		skb_pull(skb, offsetof(struct efx_loopback_payload, header));
+		/* Strip off the trailing padding */
+		skb_trim(skb, EFX_LOOPBACK_PAYLOAD_LEN);
 
 		/* Ensure everything we've written is visible to the
 		 * interrupt handler. */