On Mon, Aug 19, 2019 at 2:17 PM Max Staudt <max@xxxxxxxxx> wrote:
This is the i2c-icy driver for the ICY board for Amiga computers.
It connects a PCF8584 I2C controller to the Zorro bus, providing I2C
connectivity. The original documentation can be found on Aminet:
https://aminet.net/package/docs/hard/icy
IRQ support is currently not implemented, as i2c-algo-pcf is built for
the ISA bus and a straight implementation of the same stack locks up a
Zorro machine.
v5: usleep_range() instead of udelay()
Style
v3: Fixed %pa format string
Dropped adapter class.
Clarified licence.
Removed clock parameter.
v2: Matched function names to callbacks from i2c-algo-pcf
Used z_readb()/z_writeb()
Removed BROKEN_ON_SMP in Kconfig
Moved LTC2990 to a separate commit
Signed-off-by: Max Staudt <max@xxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
--- /dev/null
+++ b/drivers/i2c/busses/i2c-icy.c
+static int icy_pcf_getpcf(void *data, int ctl)
+{
+ struct icy_i2c *i2c = (struct icy_i2c *)data;
+
+ u8 __iomem *address = ctl ? i2c->reg_s1 : i2c->reg_s0;
+ int val = z_readb(address);
+
+ return val;
return z_readb(address);
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
