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SubjectRe: [PATCH net-next v1 1/1] net: dsa: hellcreek: Get rid of custom led_init_default_state_get()
Date
On Wed Aug 03 2022, Andy Shevchenko wrote:
> LED core provides a helper to parse default state from firmware node.
> Use it instead of custom implementation.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
> drivers/net/dsa/hirschmann/hellcreek_ptp.c | 45 ++++++++++++----------
> 1 file changed, 24 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/net/dsa/hirschmann/hellcreek_ptp.c b/drivers/net/dsa/hirschmann/hellcreek_ptp.c
> index b28baab6d56a..793b2c296314 100644
> --- a/drivers/net/dsa/hirschmann/hellcreek_ptp.c
> +++ b/drivers/net/dsa/hirschmann/hellcreek_ptp.c
> @@ -297,7 +297,8 @@ static enum led_brightness hellcreek_led_is_gm_get(struct led_classdev *ldev)
> static int hellcreek_led_setup(struct hellcreek *hellcreek)
> {
> struct device_node *leds, *led = NULL;
> - const char *label, *state;
> + enum led_default_state state;
> + const char *label;
> int ret = -EINVAL;
>
> of_node_get(hellcreek->dev->of_node);
> @@ -318,16 +319,17 @@ static int hellcreek_led_setup(struct hellcreek *hellcreek)
> ret = of_property_read_string(led, "label", &label);
> hellcreek->led_sync_good.name = ret ? "sync_good" : label;
>
> - ret = of_property_read_string(led, "default-state", &state);
> - if (!ret) {
> - if (!strcmp(state, "on"))
> - hellcreek->led_sync_good.brightness = 1;
> - else if (!strcmp(state, "off"))
> - hellcreek->led_sync_good.brightness = 0;
> - else if (!strcmp(state, "keep"))
> - hellcreek->led_sync_good.brightness =
> - hellcreek_get_brightness(hellcreek,
> - STATUS_OUT_SYNC_GOOD);
> + state = led_init_default_state_get(of_fwnode_handle(led));

Applied your patch to net-next/master and this yields:

|drivers/net/dsa/hirschmann/hellcreek_ptp.c: In function ‘hellcreek_led_setup’:
|drivers/net/dsa/hirschmann/hellcreek_ptp.c:430:10: error: implicit declaration of function ‘led_init_default_state_get’; did you mean ‘led_get_default_pattern’? [-Werror=implicit-function-declaration]
| 430 | state = led_init_default_state_get(of_fwnode_handle(led));
| | ^~~~~~~~~~~~~~~~~~~~~~~~~~
| | led_get_default_pattern

The header is missing:

|diff --git a/drivers/net/dsa/hirschmann/hellcreek_ptp.c b/drivers/net/dsa/hirschmann/hellcreek_ptp.c
|index df339f3e1803..430f39172d58 100644
|--- a/drivers/net/dsa/hirschmann/hellcreek_ptp.c
|+++ b/drivers/net/dsa/hirschmann/hellcreek_ptp.c
|@@ -14,6 +14,8 @@
| #include "hellcreek_ptp.h"
| #include "hellcreek_hwtstamp.h"
|
|+#include "../../../leds/leds.h"
|+
| u16 hellcreek_ptp_read(struct hellcreek *hellcreek, unsigned int offset)
| {
| return readw(hellcreek->ptp_base + offset);

Maybe move led_init_default_state_get() to linux/leds.h?

Thanks,
Kurt
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