Mirrors/u-boot
1
0
Fork 0
mirror of https://source.denx.de/u-boot/u-boot.git synced 2026-06-02 09:46:37 +03:00
Code Issues Packages Projects Releases Wiki Activity

reset: airoha: convert to regmap API

Browse Source 
In preparation for support for Airoha AN7583, convert the driver to
regmap API. This is needed as Airoha AN7583 will use syscon to access
reset registers.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi
2025-11-01 03:44:52 +03:00
committed by Tom Rini
parent 7a656020d8
commit ea9b797537
1 changed files with 18 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
drivers/reset/reset-airoha.c
View File

@@ -10,6 +10,7 @@
#include <dm.h>
#include <linux/io.h>
#include <reset-uclass.h>
#include <regmap.h>
#include <dt-bindings/reset/airoha,en7581-reset.h>
@@ -21,7 +22,7 @@
struct airoha_reset_priv {
const u16 *bank_ofs;
const u16 *idx_map;
void __iomem *base;
struct regmap *map;
};
static const u16 en7581_rst_ofs[] = {
@@ -90,17 +91,11 @@ static const u16 en7581_rst_map[] = {
static int airoha_reset_update(struct airoha_reset_priv *priv,
unsigned long id, bool assert)
{
void __iomem *addr = priv->base + priv->bank_ofs[id / RST_NR_PER_BANK];
u32 val;
u16 offset = priv->bank_ofs[id / RST_NR_PER_BANK];
val = readl(addr);
if (assert)
val |= BIT(id % RST_NR_PER_BANK);
else
val &= ~BIT(id % RST_NR_PER_BANK);
writel(val, addr);
return 0;
return regmap_update_bits(priv->map, offset,
BIT(id % RST_NR_PER_BANK),
assert ? BIT(id % RST_NR_PER_BANK) : 0);
}
static int airoha_reset_assert(struct reset_ctl *reset_ctl)
@@ -123,11 +118,16 @@ static int airoha_reset_status(struct reset_ctl *reset_ctl)
{
struct airoha_reset_priv *priv = dev_get_priv(reset_ctl->dev);
int id = reset_ctl->id;
void __iomem *addr;
u16 offset;
u32 val;
int ret;
addr = priv->base + priv->bank_ofs[id / RST_NR_PER_BANK];
offset = priv->bank_ofs[id / RST_NR_PER_BANK];
ret = regmap_read(priv->map, offset, &val);
if (ret)
return ret;
return !!(readl(addr) & BIT(id % RST_NR_PER_BANK));
return !!(val & BIT(id % RST_NR_PER_BANK));
}
static int airoha_reset_xlate(struct reset_ctl *reset_ctl,
@@ -153,10 +153,11 @@ static struct reset_ops airoha_reset_ops = {
static int airoha_reset_probe(struct udevice *dev)
{
struct airoha_reset_priv *priv = dev_get_priv(dev);
int ret;
priv->base = dev_remap_addr(dev);
if (!priv->base)
return -ENOMEM;
ret = regmap_init_mem(dev_ofnode(dev), &priv->map);
if (ret)
return ret;
priv->bank_ofs = en7581_rst_ofs;
priv->idx_map = en7581_rst_map;