Change current bus commands to match the pca9541a datasheet (see table 12 on page 14 of https://www.nxp.com/docs/en/data-sheet/PCA9541A.pdf). Also add change so that previous master releases control of bus. Signed-off-by: Quentin Strydom <qstrydom0@xxxxxxxxx> --- drivers/i2c/muxes/i2c-mux-pca9541.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/muxes/i2c-mux-pca9541.c b/drivers/i2c/muxes/i2c-mux-pca9541.c index 50e1fb4aedf5..eb2552fbd0d0 100644 --- a/drivers/i2c/muxes/i2c-mux-pca9541.c +++ b/drivers/i2c/muxes/i2c-mux-pca9541.c @@ -134,7 +134,8 @@ static void pca9541_release_bus(struct i2c_client *client) reg = pca9541_reg_read(client, PCA9541_CONTROL); if (reg >= 0 && !busoff(reg) && mybus(reg)) pca9541_reg_write(client, PCA9541_CONTROL, - (reg & PCA9541_CTL_NBUSON) >> 1); + (reg & (PCA9541_CTL_BUSON | PCA9541_CTL_MYBUS)) + ^ (PCA9541_CTL_BUSON | PCA9541_CTL_MYBUS)); } /* @@ -163,7 +164,7 @@ static void pca9541_release_bus(struct i2c_client *client) /* Control commands per PCA9541 datasheet */ static const u8 pca9541_control[16] = { - 4, 0, 1, 5, 4, 4, 5, 5, 0, 0, 1, 1, 0, 4, 5, 1 + 4, 4, 5, 5, 4, 4, 5, 5, 0, 0, 1, 1, 0, 0, 1, 1 }; /* -- 2.17.1
