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Add the legacy i2c_reg_read/write() functions to the compatibility layer
so that they can be used when CONFIG_DM_I2C_COMPAT is defined.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
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These functions are useful in case the board calls them. Also fix a missing
parameter caused by applying the wrong patch (actually I failed to send v2
and applied v1 by mistake).
Signed-off-by: Simon Glass <sjg@chromium.org>
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This patch fixes build error for CONFIG_DM_I2C_COMPAT.
In i2c_get_chip_for_busnum() call, one of argument was missed,
which was offset_len. Now it is set to 'alen' as previous.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
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At present we go through various contortions to store the I2C's chip
address in its private data. This only exists when the chip is active so
must be set up when it is probed. Until the device is probed we don't
actually record what address it will appear on.
However, now that we can support per-child platform data, we can use that
instead. This allows us to set up the address when the child is bound,
and avoid the messy contortions.
Unfortunately this is a fairly large change and it seems to be difficult to
break it down further.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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For boards which use multiple I2C devices, or for SOCs which support
multiple boards, we might want to convert these to driver model at different
times. At present this is difficult because we need to either use
CONFIG_DM_I2C for a board or not.
Add a compatibility layer which implements the old API, thus allowing a
board to move to driver model for I2C without requiring that everything it
uses is moved in the same commit.
Signed-off-by: Simon Glass <sjg@chromium.org>
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