From 074363a5a08c1be345c7d4bd6b0cf0d87a76c729 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Wed, 15 Mar 2017 12:31:34 +0100 Subject: [PATCH] i2c: mv64xxx: simplify optional reset handling As of commit bb475230b8e5 ("reset: make optional functions really optional"), the reset framework API calls use NULL pointers to describe optional, non-present reset controls. This allows to return errors from devm_reset_control_get_optional and to call reset_control_(de)assert unconditionally. Signed-off-by: Philipp Zabel Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-mv64xxx.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index a50bd6891e27b..cf737ec8563b8 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c @@ -823,13 +823,10 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data, 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; - goto out; - } - } else { - reset_control_deassert(drv_data->rstc); + rc = PTR_ERR(drv_data->rstc); + goto out; } + reset_control_deassert(drv_data->rstc); /* Its not yet defined how timeouts will be specified in device tree. * So hard code the value to 1 second. @@ -951,8 +948,7 @@ mv64xxx_i2c_probe(struct platform_device *pd) exit_free_irq: free_irq(drv_data->irq, drv_data); exit_reset: - if (!IS_ERR_OR_NULL(drv_data->rstc)) - reset_control_assert(drv_data->rstc); + reset_control_assert(drv_data->rstc); exit_clk: /* Not all platforms have a clk */ if (!IS_ERR(drv_data->clk)) @@ -968,8 +964,7 @@ mv64xxx_i2c_remove(struct platform_device *dev) i2c_del_adapter(&drv_data->adapter); free_irq(drv_data->irq, drv_data); - if (!IS_ERR_OR_NULL(drv_data->rstc)) - reset_control_assert(drv_data->rstc); + reset_control_assert(drv_data->rstc); /* Not all platforms have a clk */ if (!IS_ERR(drv_data->clk)) clk_disable_unprepare(drv_data->clk); -- 2.30.2