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drm/bridge: sn65dsi86: ti_sn65dsi86_read_u16() __maybe_unused

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When built without CONFIG_PWM there are no references to
ti_sn65dsi86_read_u16(), avoid the W=1 build warning by marking the
function as __maybe_unused.

__maybe_unused is used insted of a #ifdef guard as it looks slighly
cleaner and it avoids issues if in the future other permutations of the
config options would use the function.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: cea86c5bb4 ("drm/bridge: ti-sn65dsi86: Implement the pwm_chip")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211028163548.273736-1-bjorn.andersson@linaro.org
Signed-off-by: Robert Foss <robert.foss@linaro.org>
This commit is contained in:
Bjorn Andersson 2021-10-28 09:35:48 -07:00 committed by Robert Foss
parent e73c317efb
commit 2b3374306b
No known key found for this signature in database
GPG Key ID: 3EFD900F76D1D784
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/bridge/ti-sn65dsi86.c
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@ -215,8 +215,8 @@ static const struct regmap_config ti_sn65dsi86_regmap_config = {
.cache_type = REGCACHE_NONE,
};
static int ti_sn65dsi86_read_u16(struct ti_sn65dsi86 *pdata,
unsigned int reg, u16 *val)
static int __maybe_unused ti_sn65dsi86_read_u16(struct ti_sn65dsi86 *pdata,
unsigned int reg, u16 *val)
{
u8 buf[2];
int ret;