On Fri, Nov 2, 2018 at 6:12 AM Ayman Bagabas <ayman.bagabas@xxxxxxxxx> wrote:
>
> Some of Huawei laptops come with a LED in the mic mute key. This patch
> enables and disable this LED accordingly.
> --- a/drivers/platform/x86/huawei_wmi.c
> +++ b/drivers/platform/x86/huawei_wmi.c
> @@ -26,6 +26,7 @@
> #include <linux/input/sparse-keymap.h>
> #include <linux/acpi.h>
> #include <linux/wmi.h>
> +#include <linux/huawei_wmi.h>
Keep it in order and put under
include/linux/platform_data/x86/
folder.
> +/* SPDX-License-Identifier: GPL-2.0 */
> +#ifndef __HUAWEI_WMI_H__
> +#define __HUAWEI_WMI_H__
> +
> +int huawei_wmi_micmute_led_set(bool on);
> +
> +#endif
This has to cover !HUAWEI_LAPTOP case.
> +/* Helper functions for Huawei WMI Mic Mute LED;
> + * to be included from codec driver
> + */
Comment style.
> +#if IS_ENABLED(CONFIG_HUAWEI_LAPTOP)
See above
> +static int (*huawei_wmi_micmute_led_set_func)(bool);
Why is that?
> + if (action == HDA_FIXUP_ACT_PROBE) {
> + if (!huawei_wmi_micmute_led_set_func)
> + huawei_wmi_micmute_led_set_func = symbol_request(huawei_wmi_micmute_led_set);
> + if (!huawei_wmi_micmute_led_set_func) {
> + codec_warn(codec, "Failed to find huawei_wmi symbol huawei_wmi_micmute_led_set\n");
> + return;
> + }
> + removefunc = (huawei_wmi_micmute_led_set_func(false) < 0)
> + || (snd_hda_gen_add_micmute_led(codec, update_huawei_wmi_micmute_led) < 0);
> +
> + }
> +
> + if (huawei_wmi_micmute_led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) {
> + symbol_put(huawei_wmi_micmute_led_set);
> + huawei_wmi_micmute_led_set_func = NULL;
> + }
> +}
Takashi, is it a way how the rest sound drivers are written? B/c this
symbol_request(s) look to me a bit ugly.
> +/* for alc_fixup_huawei_micmute_led */
> +#include "huawei_wmi_helper.c"
Ditto.
Include *.c?! Huh?
--
With Best Regards,
Andy Shevchenko
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