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authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 11:03:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 11:03:17 -0700
commit8e3a3249502d8ff92d73d827fb41dd44c5a16f76 (patch)
tree033e620f253013f37426c51fdb1699e65dc9770d /include/linux/soundwire
parent90035c28f17d59be660b9992757d09853ab203ec (diff)
parente2cb6b891ad2b8caa9131e3be70f45243df82a80 (diff)
downloadlinux-next-8e3a3249502d8ff92d73d827fb41dd44c5a16f76.tar.gz
linux-next-8e3a3249502d8ff92d73d827fb41dd44c5a16f76.zip
Merge tag 'char-misc-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the big set of various smaller driver subsystem updates for 5.13-rc1. Major bits in here are: - habanalabs driver updates - hwtracing driver updates - interconnect driver updates - mhi driver updates - extcon driver updates - fpga driver updates - new binder features added - nvmem driver updates - phy driver updates - soundwire driver updates - smaller misc and char driver fixes and updates. - bluetooth driver bugfix that maintainer wanted to go through this tree. All of these have been in linux-next with no reported issues" * tag 'char-misc-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (330 commits) bluetooth: eliminate the potential race condition when removing the HCI controller coresight: etm-perf: Fix define build issue when built as module phy: Revert "phy: ti: j721e-wiz: add missing of_node_put" phy: ti: j721e-wiz: Add missing include linux/slab.h phy: phy-twl4030-usb: Fix possible use-after-free in twl4030_usb_remove() stm class: Use correct UUID APIs intel_th: pci: Add Alder Lake-M support intel_th: pci: Add Rocket Lake CPU support intel_th: Consistency and off-by-one fix intel_th: Constify attribute_group structs intel_th: Constify all drvdata references stm class: Remove an unused function habanalabs/gaudi: Fix uninitialized return code rc when read size is zero greybus: es2: fix kernel-doc warnings mei: me: add Alder Lake P device id. dw-xdata-pcie: Update outdated info and improve text format dw-xdata-pcie: Fix documentation build warns fbdev: zero-fill colormap in fbcmap.c firmware: qcom-scm: Fix QCOM_SCM configuration speakup: i18n: Switch to kmemdup_nul() in spk_msg_set() ...
Diffstat (limited to 'include/linux/soundwire')
-rw-r--r--include/linux/soundwire/sdw.h36
1 files changed, 35 insertions, 1 deletions
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index d08039d65825..ced07f8fde87 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -125,6 +125,12 @@ enum sdw_dpn_grouping {
SDW_BLK_GRP_CNT_4 = 3,
};
+/* block packing mode enum */
+enum sdw_dpn_pkg_mode {
+ SDW_BLK_PKG_PER_PORT = 0,
+ SDW_BLK_PKG_PER_CHANNEL = 1
+};
+
/**
* enum sdw_stream_type: data stream type
*
@@ -405,6 +411,7 @@ struct sdw_slave_prop {
* command
* @mclk_freq: clock reference passed to SoundWire Master, in Hz.
* @hw_disabled: if true, the Master is not functional, typically due to pin-mux
+ * @quirks: bitmask identifying optional behavior beyond the scope of the MIPI specification
*/
struct sdw_master_prop {
u32 revision;
@@ -421,8 +428,29 @@ struct sdw_master_prop {
u32 err_threshold;
u32 mclk_freq;
bool hw_disabled;
+ u64 quirks;
};
+/* Definitions for Master quirks */
+
+/*
+ * In a number of platforms bus clashes are reported after a hardware
+ * reset but without any explanations or evidence of a real problem.
+ * The following quirk will discard all initial bus clash interrupts
+ * but will leave the detection on should real bus clashes happen
+ */
+#define SDW_MASTER_QUIRKS_CLEAR_INITIAL_CLASH BIT(0)
+
+/*
+ * Some Slave devices have known issues with incorrect parity errors
+ * reported after a hardware reset. However during integration unexplained
+ * parity errors can be reported by Slave devices, possibly due to electrical
+ * issues at the Master level.
+ * The following quirk will discard all initial parity errors but will leave
+ * the detection on should real parity errors happen.
+ */
+#define SDW_MASTER_QUIRKS_CLEAR_INITIAL_PARITY BIT(1)
+
int sdw_master_read_prop(struct sdw_bus *bus);
int sdw_slave_read_prop(struct sdw_slave *slave);
@@ -614,6 +642,7 @@ struct sdw_slave_ops {
* @debugfs: Slave debugfs
* @node: node for bus list
* @port_ready: Port ready completion flag for each Slave port
+ * @m_port_map: static Master port map for each Slave port
* @dev_num: Current Device Number, values can be 0 or dev_num_sticky
* @dev_num_sticky: one-time static Device Number assigned by Bus
* @probed: boolean tracking driver state
@@ -645,6 +674,7 @@ struct sdw_slave {
#endif
struct list_head node;
struct completion port_ready[SDW_MAX_PORTS];
+ unsigned int m_port_map[SDW_MAX_PORTS];
enum sdw_clk_stop_mode curr_clk_stop_mode;
u16 dev_num;
u16 dev_num_sticky;
@@ -804,6 +834,7 @@ struct sdw_defer {
/**
* struct sdw_master_ops - Master driver ops
* @read_prop: Read Master properties
+ * @override_adr: Override value read from firmware (quirk for buggy firmware)
* @xfer_msg: Transfer message callback
* @xfer_msg_defer: Defer version of transfer message callback
* @reset_page_addr: Reset the SCP page address registers
@@ -813,7 +844,8 @@ struct sdw_defer {
*/
struct sdw_master_ops {
int (*read_prop)(struct sdw_bus *bus);
-
+ u64 (*override_adr)
+ (struct sdw_bus *bus, u64 addr);
enum sdw_command_response (*xfer_msg)
(struct sdw_bus *bus, struct sdw_msg *msg);
enum sdw_command_response (*xfer_msg_defer)
@@ -1009,5 +1041,7 @@ int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value);
int sdw_read_no_pm(struct sdw_slave *slave, u32 addr);
int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val);
int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, u8 *val);
+int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id);
+void sdw_extract_slave_id(struct sdw_bus *bus, u64 addr, struct sdw_slave_id *id);
#endif /* __SOUNDWIRE_H */