i2c: sun8i_rsb: Add support for DM clocks and resets
Currently, clock/reset setup for this device is handled by a
platform-specific function and is intermixed with non-DM pinctrl
setup. Use the devicetree to get clocks/resets, which disentagles
it from the pinctrl setup in preparation for moving to DM_PINCTRL.
This also has the added benefit of picking the right clock/reset
bits for H6 and new SoCs that have a rearranged PRCM MMIO space.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/drivers/i2c/sun8i_rsb.c b/drivers/i2c/sun8i_rsb.c
index 38d6e87..47fa05b 100644
--- a/drivers/i2c/sun8i_rsb.c
+++ b/drivers/i2c/sun8i_rsb.c
@@ -9,10 +9,12 @@
*/
#include <axp_pmic.h>
+#include <clk.h>
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <i2c.h>
+#include <reset.h>
#include <time.h>
#include <asm/arch/cpu.h>
#include <asm/arch/gpio.h>
@@ -235,9 +237,19 @@
static int sun8i_rsb_probe(struct udevice *bus)
{
struct sun8i_rsb_priv *priv = dev_get_priv(bus);
+ struct reset_ctl *reset;
+ struct clk *clk;
priv->base = dev_read_addr_ptr(bus);
+ reset = devm_reset_control_get(bus, NULL);
+ if (!IS_ERR(reset))
+ reset_deassert(reset);
+
+ clk = devm_clk_get(bus, NULL);
+ if (!IS_ERR(clk))
+ clk_enable(clk);
+
return sun8i_rsb_init(priv->base);
}