Few Minor comments!!
On 10/11/17 11:49, Vinod Koul wrote:
Signed-off-by: Sanyog Kale <sanyog.r.kale@xxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
---
drivers/soundwire/Makefile | 2 +-
drivers/soundwire/bus.c | 8 +
drivers/soundwire/bus_type.c | 18 ++
drivers/soundwire/mipi_disco.c | 422 +++++++++++++++++++++++++++++++++++++++++
include/linux/soundwire/sdw.h | 284 +++++++++++++++++++++++++++
5 files changed, 733 insertions(+), 1 deletion(-)
create mode 100644 drivers/soundwire/mipi_disco.c
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 9070aec77576..741b29d974fe 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -84,6 +84,260 @@ enum sdw_slave_status {
};
+/**
+ * enum sdw_clk_stop_mode: Clock Stop modes
+ *
+ * @SDW_CLK_STOP_MODE_0: Slave can continue operation seamlessly on clock
+ * restart
+ * @SDW_CLK_STOP_MODE_1: Slave may have entered a deeper power-saving mode,
Should be MODE0 and MODE1.. here
+ * not capable of continuing operation seamlessly when the clock restarts
+ */
+enum sdw_clk_stop_mode {
+ SDW_CLK_STOP_MODE0 = 1,
+ SDW_CLK_STOP_MODE1 = 2,
+};
+
+/**
+ * struct sdw_dpn_audio_mode: Audio mode properties for DPn
+ *
+ * @bus_min_freq: Minimum bus frequency, in Hz
+ * @bus_max_freq: Maximum bus frequency, in Hz
+ * @bus_num_freq: Number of discrete frequencies supported
+ * @bus_freq: Discrete bus frequencies, in Hz
+ * @bus_min_freq: Minimum sampling frequency, in Hz
Should be min_freq
+ * @bus_max_freq: Maximum sampling bus frequency, in Hz
Should be max_freq
+ * @bus_num_freq: Number of discrete sampling frequency supported
Should be num_freq
+ * @bus_freq: Discrete sampling frequencies, in Hz
Should be freq
+ * @prep_ch_behave: Specifies the dependencies between Channel Prepare
+ * sequence and bus clock configuration
+ * If 0, Channel Prepare can happen at any Bus clock rate
+ * If 1, Channel Prepare sequence shall happen only after Bus clock is
+ * changed to a frequency supported by this mode or compatible modes
+ * described by the next field
+ * @glitchless: Bitmap describing possible glitchless transitions from this
+ * Audio Mode to other Audio Modes
+ */
+struct sdw_dpn_audio_mode {
+ u32 bus_min_freq;
+ u32 bus_max_freq;
+ u32 bus_num_freq;
+ u32 *bus_freq;
+ u32 max_freq;
+ u32 min_freq;
+ u32 num_freq;
+ u32 *freq;
+ u32 prep_ch_behave;
+ u32 glitchless;
+};
+
+/**
+ * struct sdw_slave_prop: SoundWire Slave properties
+ *
+ * @mipi_revision: Spec version of the implementation
+ * @wake_capable: Wake-up events are supported
+ * @test_mode_capable: If test mode is supported
+ * @clk_stop_mode1: Clock-Stop Mode 1 is supported
+ * @simple_clk_stop_capable: Simple clock mode is supported
+ * @clk_stop_timeout: Worst-case latency of the Clock Stop Prepare State
+ * Machine transitions, in milliseconds
+ * @ch_prep_timeout: Worst-case latency of the Channel Prepare State Machine
+ * transitions, in milliseconds
+ * @reset_behave: Slave keeps the status of the SlaveStopClockPrepare
+ * state machine (P=1 SCSP_SM) after exit from clock-stop mode1
+ * @high_PHY_capable: Slave is HighPHY capable
+ * @paging_support: Slave implements paging registers SCP_AddrPage1 and
+ * SCP_AddrPage2
+ * @bank_delay_support: Slave implements bank delay/bridge support registers
+ * SCP_BankDelay and SCP_NextFrame
+ * @p15_behave: Slave behavior when the Master attempts a read to the Port15
+ * alias
+ * @lane_control_support:
?? do description here..
+ * @master_count: Number of Masters present on this Slave
+ * @source_ports: Bitmap identifying source ports
+ * @sink_ports: Bitmap identifying sink ports
+ * @dp0_prop: Data Port 0 properties
+ * @src_dpn_prop: Source Data Port N properties
+ * @sink_dpn_prop: Sink Data Port N properties
+ */
+struct sdw_slave_prop {
+ u32 mipi_revision;
+ bool wake_capable;
+ bool test_mode_capable;
+ bool clk_stop_mode1;
+ bool simple_clk_stop_capable;
+ u32 clk_stop_timeout;
+ u32 ch_prep_timeout;
+ enum sdw_clk_stop_reset_behave reset_behave;
+ bool high_PHY_capable;
+ bool paging_support;
+ bool bank_delay_support;
+ enum sdw_p15_behave p15_behave;
+ bool lane_control_support;
+ u32 master_count;
+ u32 source_ports;
+ u32 sink_ports;
+ struct sdw_dp0_prop *dp0_prop;
+ struct sdw_dpn_prop *src_dpn_prop;
+ struct sdw_dpn_prop *sink_dpn_prop;
+};
+
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