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i2c: pca-platform: correctly set algo_data.reset_chip

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When device tree support was added the setting of algo_data.reset_chip
was moved. There were two problems with this. The first being that
i2c_pca_pf_resetchip was only used if platform data was provided. The
second that it was unconditionally overridden with
i2c_pca_pf_dummyreset. Ensure that however the reset gpio is defined the
correct reset_chip function is used.

Fixes: commit 4cc7229daa ("i2c: pca-platform: switch to struct gpio_desc")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Chris Packham 2017-06-30 12:54:04 +12:00 committed by Wolfram Sang
parent 3a4991a986
commit 2ec4d8831b
1 changed files with 4 additions and 2 deletions
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6
drivers/i2c/busses/i2c-pca-platform.c
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@ -184,7 +184,6 @@ static int i2c_pca_pf_probe(struct platform_device *pdev)
if (ret == 0) {
i2c->gpio = gpio_to_desc(platform_data->gpio);
gpiod_direction_output(i2c->gpio, 0);
i2c->algo_data.reset_chip = i2c_pca_pf_resetchip;
} else {
dev_warn(&pdev->dev, "Registering gpio failed!\n");
i2c->gpio = NULL;
@ -205,7 +204,10 @@ static int i2c_pca_pf_probe(struct platform_device *pdev)
i2c->algo_data.data = i2c;
i2c->algo_data.wait_for_completion = i2c_pca_pf_waitforcompletion;
i2c->algo_data.reset_chip = i2c_pca_pf_dummyreset;
if (i2c->gpio)
i2c->algo_data.reset_chip = i2c_pca_pf_resetchip;
else
i2c->algo_data.reset_chip = i2c_pca_pf_dummyreset;
switch (res->flags & IORESOURCE_MEM_TYPE_MASK) {
case IORESOURCE_MEM_32BIT: