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pinctrl: single: fix offset management

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The pinmux configuration DT node of a peripheral does not define a
physical address but an offset. Only by adding it to the base address of
the controller it is possible to calculate the physical address of the
register to be configured. Printing an offset also requires a different
formatting option than a physical address.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
This commit is contained in:
Dario Binacchi 2021-04-11 09:39:41 +02:00 committed by Lokesh Vutla
parent 6719294694
commit 9b884e79a6
1 changed files with 14 additions and 10 deletions
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24
drivers/pinctrl/pinctrl-single.c
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@ -77,15 +77,17 @@ static int single_configure_pins(struct udevice *dev,
struct single_pdata *pdata = dev_get_plat(dev);
int n, count = size / sizeof(struct single_fdt_pin_cfg);
phys_addr_t reg;
u32 val;
u32 offset, val;
for (n = 0; n < count; n++, pins++) {
reg = fdt32_to_cpu(pins->reg);
if ((reg < 0) || (reg > pdata->offset)) {
dev_dbg(dev, " invalid register offset 0x%pa\n", &reg);
offset = fdt32_to_cpu(pins->reg);
if (offset < 0 || offset > pdata->offset) {
dev_dbg(dev, " invalid register offset 0x%x\n",
offset);
continue;
}
reg += pdata->base;
reg = pdata->base + offset;
val = fdt32_to_cpu(pins->val) & pdata->mask;
switch (pdata->width) {
case 16:
@ -111,15 +113,17 @@ static int single_configure_bits(struct udevice *dev,
struct single_pdata *pdata = dev_get_plat(dev);
int n, count = size / sizeof(struct single_fdt_bits_cfg);
phys_addr_t reg;
u32 val, mask;
u32 offset, val, mask;
for (n = 0; n < count; n++, pins++) {
reg = fdt32_to_cpu(pins->reg);
if ((reg < 0) || (reg > pdata->offset)) {
dev_dbg(dev, " invalid register offset 0x%pa\n", &reg);
offset = fdt32_to_cpu(pins->reg);
if (offset < 0 || offset > pdata->offset) {
dev_dbg(dev, " invalid register offset 0x%x\n",
offset);
continue;
}
reg += pdata->base;
reg = pdata->base + offset;
mask = fdt32_to_cpu(pins->mask);
val = fdt32_to_cpu(pins->val) & mask;