diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c')
| -rw-r--r-- | kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c index b735fa22a..bba670c42 100644 --- a/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c +++ b/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c @@ -138,7 +138,6 @@ int stmmac_mdio_reset(struct mii_bus *bus) #ifdef CONFIG_OF if (priv->device->of_node) { - int reset_gpio, active_low; if (data->reset_gpio < 0) { struct device_node *np = priv->device->of_node; @@ -154,19 +153,23 @@ int stmmac_mdio_reset(struct mii_bus *bus) "snps,reset-active-low"); of_property_read_u32_array(np, "snps,reset-delays-us", data->delays, 3); + + if (gpio_request(data->reset_gpio, "mdio-reset")) + return 0; } - reset_gpio = data->reset_gpio; - active_low = data->active_low; + gpio_direction_output(data->reset_gpio, + data->active_low ? 1 : 0); + if (data->delays[0]) + msleep(DIV_ROUND_UP(data->delays[0], 1000)); - if (!gpio_request(reset_gpio, "mdio-reset")) { - gpio_direction_output(reset_gpio, active_low ? 1 : 0); - udelay(data->delays[0]); - gpio_set_value(reset_gpio, active_low ? 0 : 1); - udelay(data->delays[1]); - gpio_set_value(reset_gpio, active_low ? 1 : 0); - udelay(data->delays[2]); - } + gpio_set_value(data->reset_gpio, data->active_low ? 0 : 1); + if (data->delays[1]) + msleep(DIV_ROUND_UP(data->delays[1], 1000)); + + gpio_set_value(data->reset_gpio, data->active_low ? 1 : 0); + if (data->delays[2]) + msleep(DIV_ROUND_UP(data->delays[2], 1000)); } #endif |