linux-kernel - [PATCH v5 6/7] pwm: lpss: Add devm_pwm_lpss

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20221117110806.65470-7-andriy.shevchenko@linux.intel.com>
Date:   Thu, 17 Nov 2022 13:08:05 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Hans de Goede <hdegoede@...hat.com>,
        Thierry Reding <thierry.reding@...il.com>,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-pwm@...r.kernel.org
Cc:     Andy Shevchenko <andy@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH v5 6/7] pwm: lpss: Add devm_pwm_lpss_probe() stub

In case the PWM LPSS module is not provided, allow users to be
compiled with the help of the devm_pwm_lpss_probe() stub.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Thierry Reding <thierry.reding@...il.com>
Reviewed-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
---
 include/linux/platform_data/x86/pwm-lpss.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/linux/platform_data/x86/pwm-lpss.h b/include/linux/platform_data/x86/pwm-lpss.h
index c852fe24fe2a..6ef21b8baec7 100644
--- a/include/linux/platform_data/x86/pwm-lpss.h
+++ b/include/linux/platform_data/x86/pwm-lpss.h
@@ -4,6 +4,8 @@
 #ifndef __PLATFORM_DATA_X86_PWM_LPSS_H
 #define __PLATFORM_DATA_X86_PWM_LPSS_H
 
+#include <linux/err.h>
+#include <linux/kconfig.h>
 #include <linux/types.h>
 
 struct device;
@@ -27,7 +29,16 @@ struct pwm_lpss_boardinfo {
 	bool other_devices_aml_touches_pwm_regs;
 };
 
+#if IS_REACHABLE(CONFIG_PWM_LPSS)
 struct pwm_lpss_chip *devm_pwm_lpss_probe(struct device *dev, void __iomem *base,
 					  const struct pwm_lpss_boardinfo *info);
+#else
+static inline
+struct pwm_lpss_chip *devm_pwm_lpss_probe(struct device *dev, void __iomem *base,
+					  const struct pwm_lpss_boardinfo *info)
+{
+	return ERR_PTR(-ENODEV);
+}
+#endif	/* CONFIG_PWM_LPSS */
 
 #endif	/* __PLATFORM_DATA_X86_PWM_LPSS_H */
-- 
2.35.1