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| author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2014-03-10 15:12:10 +0400 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-03-28 11:47:32 +0400 |
| commit | f2a67d0c27c5c018ed592116f1e1577aa041d73d (patch) | |
| tree | 592f4efa91414350bba2f2452a46836e48872ed9 /drivers/i2c | |
| parent | ff370257ed0bba6e98a9538fefa402a4696f9857 (diff) | |
| download | linux-f2a67d0c27c5c018ed592116f1e1577aa041d73d.tar.xz | |
i2c: mv64xxx: Fix reset controller handling
The reset framework recently gained optional stubs when CONFIG_RESET_CONTROLLER
is not selected. It also introduced a function reset_get_optional, that is also
dummy-defined whenever the framework isn't enabled, for drivers that needs an
optional reset controller.
Switch to this function, since the mv64xxx driver is in this case. This also
fixes a compilation breakage whenever the reset framework wasn't selected:
drivers/i2c/busses/i2c-mv64xxx.c:771:2: error: implicit declaration of function 'devm_reset_control_get'
While we're at it, remove the redundant test on dev.of_node surrounding the
calls to reset framework functions, since it will either be a valid pointer, an
error pointer in the case where we called reset_get_optional without an of_node
pointer or if it failed, or NULL if we're not loaded through DT.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-mv64xxx.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index eb76491a301e..681ea4db39a3 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c @@ -757,7 +757,7 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data, } drv_data->irq = irq_of_parse_and_map(np, 0); - drv_data->rstc = devm_reset_control_get(dev, NULL); + drv_data->rstc = devm_reset_control_get_optional(dev, NULL); if (IS_ERR(drv_data->rstc)) { if (PTR_ERR(drv_data->rstc) == -EPROBE_DEFER) { rc = -EPROBE_DEFER; @@ -889,7 +889,7 @@ mv64xxx_i2c_probe(struct platform_device *pd) exit_free_irq: free_irq(drv_data->irq, drv_data); exit_reset: - if (pd->dev.of_node && !IS_ERR(drv_data->rstc)) + if (!IS_ERR_OR_NULL(drv_data->rstc)) reset_control_assert(drv_data->rstc); exit_clk: #if defined(CONFIG_HAVE_CLK) @@ -909,7 +909,7 @@ mv64xxx_i2c_remove(struct platform_device *dev) i2c_del_adapter(&drv_data->adapter); free_irq(drv_data->irq, drv_data); - if (dev->dev.of_node && !IS_ERR(drv_data->rstc)) + if (!IS_ERR_OR_NULL(drv_data->rstc)) reset_control_assert(drv_data->rstc); #if defined(CONFIG_HAVE_CLK) /* Not all platforms have a clk */ |