| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.18 015/150] drm/i2c: tda9950: set MAX_RETRIES for errors only | Date | Fri, 2 Nov 2018 19:32:57 +0100 |
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4.18-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit e0dccce1193f87597548d0db6ecc942fb92c04cd ]
The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to prevent the CEC framework from retrying the transmit. If the transmit was successful, then don't set this flag.
Found by running 'cec-compliance -A' on a beaglebone box.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/gpu/drm/i2c/tda9950.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c index f2186409f0cf..ccd355d0c123 100644 --- a/drivers/gpu/drm/i2c/tda9950.c +++ b/drivers/gpu/drm/i2c/tda9950.c @@ -188,7 +188,8 @@ static irqreturn_t tda9950_irq(int irq, void *data) break; } /* TDA9950 executes all retries for us */ - tx_status |= CEC_TX_STATUS_MAX_RETRIES; + if (tx_status != CEC_TX_STATUS_OK) + tx_status |= CEC_TX_STATUS_MAX_RETRIES; cec_transmit_done(priv->adap, tx_status, arb_lost_cnt, nack_cnt, 0, err_cnt); break; -- 2.17.1
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