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hw/i2c: only schedule pending master when bus is idle

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It is not given that the current master will release the bus after a
transfer ends. Only schedule a pending master if the bus is idle.

Fixes: 37fa5ca426 ("hw/i2c: support multiple masters")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Message-Id: <20221116084312.35808-2-its@irrelevant.dk>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Klaus Jensen 2023-03-02 13:57:50 +01:00 • committed by Cédric Le Goater
parent 9b29a468bd
commit 791cb95f23
3 changed files with 27 additions and 16 deletions
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2
include/hw/i2c/i2c.h
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@ -141,6 +141,8 @@ int i2c_start_send(I2CBus *bus, uint8_t address);
*/
int i2c_start_send_async(I2CBus *bus, uint8_t address);
void i2c_schedule_pending_master(I2CBus *bus);
void i2c_end_transfer(I2CBus *bus);
void i2c_nack(I2CBus *bus);
void i2c_ack(I2CBus *bus);