[PATCH v3 2/5] nvmem: ocotp: extend support to query the sticky bit

[Fabian Pflug <f.pflug@pengutronix.de>]

The i.MX* devices do have an sticky bit which indicates if the
field-return fuse can be written. Before only support for i.MX8* was
provided. Extend this for the i.MX6* series.

Since i.MX8 and i.MX6 share the same code, rename
imx8m_field_return_locked to imx_field_return_locked to not confuse the
user.

Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Fabian Pflug <f.pflug@pengutronix.de>
---
 drivers/nvmem/ocotp.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/nvmem/ocotp.c b/drivers/nvmem/ocotp.c
index 7bca275404..1f74fddb60 100644
--- a/drivers/nvmem/ocotp.c
+++ b/drivers/nvmem/ocotp.c
@@ -294,7 +294,7 @@ static void imx8m_lock_srk_revoke(struct ocotp_priv *priv)
 	writel(val, priv->base + OCOTP_SW_STICKY);
 }
 
-static bool imx8m_field_return_locked(struct ocotp_priv *priv)
+static bool imx_field_return_locked(struct ocotp_priv *priv)
 {
 	return readl(priv->base + OCOTP_SW_STICKY) & OCOTP_SW_STICKY_FIELD_RETURN_LOCK;
 }
@@ -990,6 +990,7 @@ static struct imx_ocotp_data imx6q_ocotp_data = {
 	.fuse_blow = imx6_fuse_blow_addr,
 	.fuse_read = imx6_fuse_read_addr,
 	.ctrl = &ocotp_ctrl_reg_default,
+	.field_return_locked = imx_field_return_locked,
 };
 
 static struct imx_ocotp_data imx6sl_ocotp_data = {
@@ -1002,6 +1003,7 @@ static struct imx_ocotp_data imx6sl_ocotp_data = {
 	.fuse_blow = imx6_fuse_blow_addr,
 	.fuse_read = imx6_fuse_read_addr,
 	.ctrl = &ocotp_ctrl_reg_default,
+	.field_return_locked = imx_field_return_locked,
 };
 
 static struct imx_ocotp_data imx6ul_ocotp_data = {
@@ -1014,6 +1016,7 @@ static struct imx_ocotp_data imx6ul_ocotp_data = {
 	.fuse_blow = imx6_fuse_blow_addr,
 	.fuse_read = imx6_fuse_read_addr,
 	.ctrl = &ocotp_ctrl_reg_default,
+	.field_return_locked = imx_field_return_locked,
 };
 
 static struct imx_ocotp_data imx6ull_ocotp_data = {
@@ -1026,6 +1029,7 @@ static struct imx_ocotp_data imx6ull_ocotp_data = {
 	.fuse_blow = imx6_fuse_blow_addr,
 	.fuse_read = imx6_fuse_read_addr,
 	.ctrl = &ocotp_ctrl_reg_default,
+	.field_return_locked = imx_field_return_locked,
 };
 
 static struct imx_ocotp_data vf610_ocotp_data = {
@@ -1063,7 +1067,7 @@ static struct imx_ocotp_data imx8mp_ocotp_data = {
 	.fuse_read = imx6_fuse_read_addr,
 	.srk_revoke_locked = imx8m_srk_revoke_locked,
 	.lock_srk_revoke = imx8m_lock_srk_revoke,
-	.field_return_locked = imx8m_field_return_locked,
+	.field_return_locked = imx_field_return_locked,
 	.ctrl = &ocotp_ctrl_reg_8mp,
 };
 
@@ -1095,7 +1099,7 @@ static struct imx_ocotp_data imx8mm_ocotp_data = {
 	.fuse_read = imx6_fuse_read_addr,
 	.srk_revoke_locked = imx8m_srk_revoke_locked,
 	.lock_srk_revoke = imx8m_lock_srk_revoke,
-	.field_return_locked = imx8m_field_return_locked,
+	.field_return_locked = imx_field_return_locked,
 	.feat = &imx8mm_featctrl_data,
 	.ctrl = &ocotp_ctrl_reg_default,
 };
@@ -1116,7 +1120,7 @@ static struct imx_ocotp_data imx8mn_ocotp_data = {
 	.fuse_read = imx6_fuse_read_addr,
 	.srk_revoke_locked = imx8m_srk_revoke_locked,
 	.lock_srk_revoke = imx8m_lock_srk_revoke,
-	.field_return_locked = imx8m_field_return_locked,
+	.field_return_locked = imx_field_return_locked,
 	.feat = &imx8mn_featctrl_data,
 	.ctrl = &ocotp_ctrl_reg_default,
 };

-- 
2.47.3