linux-kernel - [PATCH] hte: tegra194: add GPIOLIB dependency

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Date:   Mon, 23 Oct 2023 13:56:41 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Dipen Patel <dipenp@...dia.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     Arnd Bergmann <arnd@...db.de>, timestamp@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: [PATCH] hte: tegra194: add GPIOLIB dependency

From: Arnd Bergmann <arnd@...db.de>

The driver started calling into a few interfaces that are part of GPIOLIB and
don't have stub implementations otherwise:

drivers/hte/hte-tegra194.c: In function 'tegra_hte_line_xlate':
drivers/hte/hte-tegra194.c:424:48: error: implicit declaration of function 'gpio_device_get_base'; did you mean 'gpio_device_get_desc'? [-Werror=implicit-function-declaration]
  424 |                 line_id = desc->attr.line_id - gpio_device_get_base(gs->gdev);
      |                                                ^~~~~~~~~~~~~~~~~~~~
      |                                                gpio_device_get_desc

Add a Kconfig dependency to only allow building when this is defined.

Fixes: dc850faa28ee0 ("hte: tegra194: don't access struct gpio_chip")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/hte/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hte/Kconfig b/drivers/hte/Kconfig
index 083e67492bf2e..641af722b555d 100644
--- a/drivers/hte/Kconfig
+++ b/drivers/hte/Kconfig
@@ -17,6 +17,7 @@ if HTE
 config HTE_TEGRA194
 	tristate "NVIDIA Tegra194 HTE Support"
 	depends on (ARCH_TEGRA_194_SOC || COMPILE_TEST)
+	depends on GPIOLIB
 	help
 	  Enable this option for integrated hardware timestamping engine also
 	  known as generic timestamping engine (GTE) support on NVIDIA Tegra194
-- 
2.39.2