Commit 5f9614d0 authored by Sowjanya Komatineni's avatar Sowjanya Komatineni Committed by Greg Kroah-Hartman
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i2c: tegra: fix maximum transfer size 



commit f4e3f4ae upstream.

Tegra186 and prior supports maximum 4K bytes per packet transfer
including 12 bytes of packet header.

This patch fixes max write length limit to account packet header
size for transfers.

Cc: stable@vger.kernel.org # 4.4+

Reviewed-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarSowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 25970b51

drivers/i2c/busses/i2c-tegra.c

+1 −1
Original line number Diff line number Diff line
@@ -832,7 +832,7 @@ static const struct i2c_algorithm tegra_i2c_algo = { 
/* payload size is only 12 bit */

static const struct i2c_adapter_quirks tegra_i2c_quirks = {

	.max_read_len = 4096,

	.max_write_len = 4096,

	.max_write_len = 4096 - 12,

};



static const struct tegra_i2c_hw_feature tegra20_i2c_hw = {