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| author | Sriramakrishnan <srk@ti.com> | 2010-02-26 05:22:03 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-26 05:22:03 -0800 |
| commit | 773c3e75d1fc7ea5058bfeab5d82bac5b85f8cd8 (patch) | |
| tree | c72b423271c5d02956e2536ae7dad0ff94b62fab /drivers/net/can | |
| parent | 738b0343e73604750feb107e063c28b3ca36cb84 (diff) | |
| download | kernel_samsung_tuna-773c3e75d1fc7ea5058bfeab5d82bac5b85f8cd8.zip kernel_samsung_tuna-773c3e75d1fc7ea5058bfeab5d82bac5b85f8cd8.tar.gz kernel_samsung_tuna-773c3e75d1fc7ea5058bfeab5d82bac5b85f8cd8.tar.bz2 | |
can: ti hecc module : add platform specific initialization callback.
CAN module on AM3517 requires programming of IO expander as part
of init sequence - to enable CAN PHY. Added platform specific
callback to handle phy control(switch on /off).
Signed-off-by: Sriramakrishnan <srk@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/ti_hecc.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index b861cd5..0c3d2ba 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -28,9 +28,11 @@ * .mbx_offset = 0x2000, * .int_line = 0, * .revision = 1, + * .transceiver_switch = hecc_phy_control, * }; * - * Please see include/can/platform/ti_hecc.h for description of above fields + * Please see include/linux/can/platform/ti_hecc.h for description of + * above fields. * */ @@ -220,6 +222,7 @@ struct ti_hecc_priv { u32 tx_head; u32 tx_tail; u32 rx_next; + void (*transceiver_switch)(int); }; static inline int get_tx_head_mb(struct ti_hecc_priv *priv) @@ -317,6 +320,13 @@ static int ti_hecc_set_btc(struct ti_hecc_priv *priv) return 0; } +static void ti_hecc_transceiver_switch(const struct ti_hecc_priv *priv, + int on) +{ + if (priv->transceiver_switch) + priv->transceiver_switch(on); +} + static void ti_hecc_reset(struct net_device *ndev) { u32 cnt; @@ -818,10 +828,13 @@ static int ti_hecc_open(struct net_device *ndev) return err; } + ti_hecc_transceiver_switch(priv, 1); + /* Open common can device */ err = open_candev(ndev); if (err) { dev_err(ndev->dev.parent, "open_candev() failed %d\n", err); + ti_hecc_transceiver_switch(priv, 0); free_irq(ndev->irq, ndev); return err; } @@ -842,6 +855,7 @@ static int ti_hecc_close(struct net_device *ndev) ti_hecc_stop(ndev); free_irq(ndev->irq, ndev); close_candev(ndev); + ti_hecc_transceiver_switch(priv, 0); return 0; } @@ -903,6 +917,7 @@ static int ti_hecc_probe(struct platform_device *pdev) priv->hecc_ram_offset = pdata->hecc_ram_offset; priv->mbx_offset = pdata->mbx_offset; priv->int_line = pdata->int_line; + priv->transceiver_switch = pdata->transceiver_switch; priv->can.bittiming_const = &ti_hecc_bittiming_const; priv->can.do_set_mode = ti_hecc_do_set_mode; |