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reset: stm32: Fix bank and offset computation 

BITS_PER_LONG is used to represent register's size which is 32.
But when compiled on arch64, BITS_PER_LONG is then equal to 64.

Fix bank and offset computation to make it work on arch32 and
arch64 and ensure that register's size is always equal to 32.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Pankaj Dev <pankaj.dev@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This commit is contained in:
Patrice Chotard 2021-04-28 13:42:45 +02:00 committed by Patrick Delaunay
parent a5bb384caa
commit 6d734be905
1 changed files with 4 additions and 4 deletions
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8
drivers/reset/stm32-reset.c
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@ -40,8 +40,8 @@ static int stm32_reset_free(struct reset_ctl *reset_ctl)
static int stm32_reset_assert(struct reset_ctl *reset_ctl)
{
struct stm32_reset_priv *priv = dev_get_priv(reset_ctl->dev);
int bank = (reset_ctl->id / BITS_PER_LONG) * 4;
int offset = reset_ctl->id % BITS_PER_LONG;
int bank = (reset_ctl->id / (sizeof(u32) * BITS_PER_BYTE)) * 4;
int offset = reset_ctl->id % (sizeof(u32) * BITS_PER_BYTE);
dev_dbg(reset_ctl->dev, "reset id = %ld bank = %d offset = %d)\n",
reset_ctl->id, bank, offset);
@ -61,8 +61,8 @@ static int stm32_reset_assert(struct reset_ctl *reset_ctl)
static int stm32_reset_deassert(struct reset_ctl *reset_ctl)
{
struct stm32_reset_priv *priv = dev_get_priv(reset_ctl->dev);
int bank = (reset_ctl->id / BITS_PER_LONG) * 4;
int offset = reset_ctl->id % BITS_PER_LONG;
int bank = (reset_ctl->id / (sizeof(u32) * BITS_PER_BYTE)) * 4;
int offset = reset_ctl->id % (sizeof(u32) * BITS_PER_BYTE);
dev_dbg(reset_ctl->dev, "reset id = %ld bank = %d offset = %d)\n",
reset_ctl->id, bank, offset);