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SubjectRe: [PATCH v4 1/2] mfd: rk808: Refactor shutdown functions
On Fri, 16 Mar 2018, Daniel Schultz wrote:

> Since all three shutdown functions have almost the same code, all logic
> from the shutdown functions can be refactored to a new function
> "rk808_update_bits", which can update a register by a given address and
> bitmask.
>
> Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
> ---
> Changes:
> v2: Re-submit with recipients from Rockchip.
> v3: - Added devicetree property to enable the PMIC reset seperate from
> "rockchip,system-power-controller".
> - Dropped the first patch of this serie.
> v4: Splitted refactoring and the new reset feature.
>
> drivers/mfd/rk808.c | 47 ++++++++++++++---------------------------------
> 1 file changed, 14 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
> index 216fbf6..ae014ee 100644
> --- a/drivers/mfd/rk808.c
> +++ b/drivers/mfd/rk808.c
> @@ -369,58 +369,39 @@ static const struct regmap_irq_chip rk818_irq_chip = {
>
> static struct i2c_client *rk808_i2c_client;
>
> -static void rk805_device_shutdown(void)
> +static void rk808_update_bits(unsigned int reg, unsigned int bit_mask)
> {
> int ret;
> struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
>
> if (!rk808) {
> dev_warn(&rk808_i2c_client->dev,
> - "have no rk805, so do nothing here\n");
> + "have no %s, so do nothing here\n",
> + rk808->regmap_irq_chip->name);

Julia is right, you can't do this.

If !rk808 you will not be able to deference it.

--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

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