[PATCH 14/17] can: flexcan: remove ack_grp and ack_bit handling from driver

[Marc Kleine-Budde]

Since commit:

    048e3a34a2e7 can: flexcan: poll MCR_LPM_ACK instead of GPR ACK for stop 
mode acknowledgment

the driver polls the IP core's internal bit MCR[LPM_ACK] as stop mode
acknowledge and not the acknowledgment on chip level.

This means the 4th and 5th value of the property "fsl,stop-mode" isn't used
anymore. This patch removes the used "ack_gpr" and "ack_bit" from the driver.

Link: http://lore.kernel.org/r/20201006203748.1750156-15-...@pengutronix.de
Fixes: 048e3a34a2e7 ("can: flexcan: poll MCR_LPM_ACK instead of GPR ACK for 
stop mode acknowledgment")
Cc: Joakim Zhang <qiangqing.zh...@nxp.com>
Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
---
 drivers/net/can/flexcan.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index fbdd9a8c9374..4d594e977497 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -333,8 +333,6 @@ struct flexcan_stop_mode {
        struct regmap *gpr;
        u8 req_gpr;
        u8 req_bit;
-       u8 ack_gpr;
-       u8 ack_bit;
 };
 
 struct flexcan_priv {
@@ -1847,14 +1845,14 @@ static int flexcan_setup_stop_mode(struct 
platform_device *pdev)
        struct device_node *gpr_np;
        struct flexcan_priv *priv;
        phandle phandle;
-       u32 out_val[5];
+       u32 out_val[3];
        int ret;
 
        if (!np)
                return -EINVAL;
 
        /* stop mode property format is:
-        * <&gpr req_gpr req_bit ack_gpr ack_bit>.
+        * <&gpr req_gpr>.
         */
        ret = of_property_read_u32_array(np, "fsl,stop-mode", out_val,
                                         ARRAY_SIZE(out_val));
@@ -1880,13 +1878,10 @@ static int flexcan_setup_stop_mode(struct 
platform_device *pdev)
 
        priv->stm.req_gpr = out_val[1];
        priv->stm.req_bit = out_val[2];
-       priv->stm.ack_gpr = out_val[3];
-       priv->stm.ack_bit = out_val[4];
 
        dev_dbg(&pdev->dev,
-               "gpr %s req_gpr=0x02%x req_bit=%u ack_gpr=0x02%x ack_bit=%u\n",
-               gpr_np->full_name, priv->stm.req_gpr, priv->stm.req_bit,
-               priv->stm.ack_gpr, priv->stm.ack_bit);
+               "gpr %s req_gpr=0x02%x req_bit=%u\n",
+               gpr_np->full_name, priv->stm.req_gpr, priv->stm.req_bit);
 
        device_set_wakeup_capable(&pdev->dev, true);
 
-- 
2.28.0