1 files changed, 4 insertions, 107 deletions

diff --git a/include/media/cec-pin.h b/include/media/cec-pin.h
index f09cc9579d53..83b3e17e0a07 100644
--- a/include/media/cec-pin.h
+++ b/include/media/cec-pin.h
@@ -21,71 +21,8 @@
 #define LINUX_CEC_PIN_H
 
 #include <linux/types.h>
-#include <linux/atomic.h>
 #include <media/cec.h>
 
-enum cec_pin_state {
-	/* CEC is off */
-	CEC_ST_OFF,
-	/* CEC is idle, waiting for Rx or Tx */
-	CEC_ST_IDLE,
-
-	/* Tx states */
-
-	/* Pending Tx, waiting for Signal Free Time to expire */
-	CEC_ST_TX_WAIT,
-	/* Low-drive was detected, wait for bus to go high */
-	CEC_ST_TX_WAIT_FOR_HIGH,
-	/* Drive CEC low for the start bit */
-	CEC_ST_TX_START_BIT_LOW,
-	/* Drive CEC high for the start bit */
-	CEC_ST_TX_START_BIT_HIGH,
-	/* Drive CEC low for the 0 bit */
-	CEC_ST_TX_DATA_BIT_0_LOW,
-	/* Drive CEC high for the 0 bit */
-	CEC_ST_TX_DATA_BIT_0_HIGH,
-	/* Drive CEC low for the 1 bit */
-	CEC_ST_TX_DATA_BIT_1_LOW,
-	/* Drive CEC high for the 1 bit */
-	CEC_ST_TX_DATA_BIT_1_HIGH,
-	/*
-	 * Wait for start of sample time to check for Ack bit or first
-	 * four initiator bits to check for Arbitration Lost.
-	 */
-	CEC_ST_TX_DATA_BIT_1_HIGH_PRE_SAMPLE,
-	/* Wait for end of bit period after sampling */
-	CEC_ST_TX_DATA_BIT_1_HIGH_POST_SAMPLE,
-
-	/* Rx states */
-
-	/* Start bit low detected */
-	CEC_ST_RX_START_BIT_LOW,
-	/* Start bit high detected */
-	CEC_ST_RX_START_BIT_HIGH,
-	/* Wait for bit sample time */
-	CEC_ST_RX_DATA_SAMPLE,
-	/* Wait for earliest end of bit period after sampling */
-	CEC_ST_RX_DATA_POST_SAMPLE,
-	/* Wait for CEC to go high (i.e. end of bit period */
-	CEC_ST_RX_DATA_HIGH,
-	/* Drive CEC low to send 0 Ack bit */
-	CEC_ST_RX_ACK_LOW,
-	/* End of 0 Ack time, wait for earliest end of bit period */
-	CEC_ST_RX_ACK_LOW_POST,
-	/* Wait for CEC to go high (i.e. end of bit period */
-	CEC_ST_RX_ACK_HIGH_POST,
-	/* Wait for earliest end of bit period and end of message */
-	CEC_ST_RX_ACK_FINISH,
-
-	/* Start low drive */
-	CEC_ST_LOW_DRIVE,
-	/* Monitor pin using interrupts */
-	CEC_ST_RX_IRQ,
-
-	/* Total number of pin states */
-	CEC_PIN_STATES
-};
-
 /**
  * struct cec_pin_ops - low-level CEC pin operations
  * @read:	read the CEC pin. Return true if high, false if low.
@@ -97,6 +34,9 @@ enum cec_pin_state {
  * @free:	optional. Free any allocated resources. Called when the
  *		adapter is deleted.
  * @status:	optional, log status information.
+ * @read_hpd:	read the HPD pin. Return true if high, false if low or
+ *		an error if negative. If NULL or -ENOTTY is returned,
+ *		then this is not supported.
  *
  * These operations are used by the cec pin framework to manipulate
  * the CEC pin.
@@ -109,50 +49,7 @@ struct cec_pin_ops {
 	void (*disable_irq)(struct cec_adapter *adap);
 	void (*free)(struct cec_adapter *adap);
 	void (*status)(struct cec_adapter *adap, struct seq_file *file);
-};
-
-#define CEC_NUM_PIN_EVENTS 128
-
-#define CEC_PIN_IRQ_UNCHANGED	0
-#define CEC_PIN_IRQ_DISABLE	1
-#define CEC_PIN_IRQ_ENABLE	2
-
-struct cec_pin {
-	struct cec_adapter		*adap;
-	const struct cec_pin_ops	*ops;
-	struct task_struct		*kthread;
-	wait_queue_head_t		kthread_waitq;
-	struct hrtimer			timer;
-	ktime_t				ts;
-	unsigned int			wait_usecs;
-	u16				la_mask;
-	bool				enabled;
-	bool				monitor_all;
-	bool				rx_eom;
-	bool				enable_irq_failed;
-	enum cec_pin_state		state;
-	struct cec_msg			tx_msg;
-	u32				tx_bit;
-	bool				tx_nacked;
-	u32				tx_signal_free_time;
-	struct cec_msg			rx_msg;
-	u32				rx_bit;
-
-	struct cec_msg			work_rx_msg;
-	u8				work_tx_status;
-	ktime_t				work_tx_ts;
-	atomic_t			work_irq_change;
-	atomic_t			work_pin_events;
-	unsigned int			work_pin_events_wr;
-	unsigned int			work_pin_events_rd;
-	ktime_t				work_pin_ts[CEC_NUM_PIN_EVENTS];
-	bool				work_pin_is_high[CEC_NUM_PIN_EVENTS];
-	ktime_t				timer_ts;
-	u32				timer_cnt;
-	u32				timer_100ms_overruns;
-	u32				timer_300ms_overruns;
-	u32				timer_max_overrun;
-	u32				timer_sum_overrun;
+	int  (*read_hpd)(struct cec_adapter *adap);
 };
 
 /**