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i2c: sun8i_rsb: Add support for DM clocks and resets

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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>
This commit is contained in:
Samuel Holland 2022-03-17 23:52:36 -05:00 committed by Andre Przywara
parent c9dd3caae3
commit f5bfe15750
1 changed files with 12 additions and 0 deletions
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12
drivers/i2c/sun8i_rsb.c
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@ -9,10 +9,12 @@
*/ */
#include <axp_pmic.h> #include <axp_pmic.h>
#include <clk.h>
#include <common.h> #include <common.h>
#include <dm.h> #include <dm.h>
#include <errno.h> #include <errno.h>
#include <i2c.h> #include <i2c.h>
#include <reset.h>
#include <time.h> #include <time.h>
#include <asm/arch/cpu.h> #include <asm/arch/cpu.h>
#include <asm/arch/gpio.h> #include <asm/arch/gpio.h>
@ -235,9 +237,19 @@ static int sun8i_rsb_probe_chip(struct udevice *bus, uint chip_addr,
static int sun8i_rsb_probe(struct udevice *bus) static int sun8i_rsb_probe(struct udevice *bus)
{ {
struct sun8i_rsb_priv *priv = dev_get_priv(bus); struct sun8i_rsb_priv *priv = dev_get_priv(bus);
struct reset_ctl *reset;
struct clk *clk;
priv->base = dev_read_addr_ptr(bus); 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); return sun8i_rsb_init(priv->base);
} }