On Tue, 23 Jun 2020, Philippe Mathieu-Daudé wrote:
Since its introduction in commit 6fc7f77fd2 i2c_start_transfer()
uses incorrectly the direction of the transfer. Fix it now.

Fixes: 6fc7f77fd2 ("introduce aux-bus")
Reported-by: BALATON Zoltan <bala...@eik.bme.hu>
Suggested-by: BALATON Zoltan <bala...@eik.bme.hu>

One of the above is probably enough, maybe Reported-by because I wasn't sure what's the solution. I'm also happy with your changes to the whole series, thanks for fixing it.

Regards,
BALATON Zoltan

Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
RFC because untested (probably never was anyway)
Cc: Frederic Konrad <kon...@adacore.com>
Cc: Alistair Francis <alist...@alistair23.me>
Cc: Peter Maydell <peter.mayd...@linaro.org>
---
hw/misc/auxbus.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/misc/auxbus.c b/hw/misc/auxbus.c
index cef0d0d6d0..dc4a5dd10d 100644
--- a/hw/misc/auxbus.c
+++ b/hw/misc/auxbus.c
@@ -141,7 +141,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t 
address,
            i2c_end_transfer(i2c_bus);
        }

-        if (i2c_start_transfer(i2c_bus, address, is_write)) {
+        if (i2c_start_transfer(i2c_bus, address, !is_write)) {
            ret = AUX_I2C_NACK;
            break;
        }
@@ -172,7 +172,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t 
address,
            /*
             * No transactions started..
             */
-            if (i2c_start_transfer(i2c_bus, address, is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
                break;
            }
        } else if ((address != bus->last_i2c_address) ||
@@ -181,7 +181,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t 
address,
             * Transaction started but we need to restart..
             */
            i2c_end_transfer(i2c_bus);
-            if (i2c_start_transfer(i2c_bus, address, is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
                break;
            }
        }

Reply via email to