From b68edac9217ef433470f78d3fb54a769ef95a45f Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 5 Oct 2015 08:05:30 +0200 Subject: [PATCH] unicore32: nb0916: Use PWM lookup table Use a PWM lookup table to provide the PWM to the pwm-backlight device. The driver has a legacy code path that is required only because boards still use the legacy method of requesting PWMs by global ID. Replacing these usages allows that legacy fallback to be removed. Cc: Guan Xuetao Signed-off-by: Thierry Reding --- arch/unicore32/kernel/puv3-nb0916.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/unicore32/kernel/puv3-nb0916.c b/arch/unicore32/kernel/puv3-nb0916.c index 46ebfdccbc31..aab5f341dec0 100644 --- a/arch/unicore32/kernel/puv3-nb0916.c +++ b/arch/unicore32/kernel/puv3-nb0916.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -49,11 +50,14 @@ static struct resource puv3_i2c_resources[] = { } }; +static struct pwm_lookup nb0916_pwm_lookup[] = { + PWM_LOOKUP("PKUnity-v3-PWM", 0, "pwm-backlight", NULL, 70 * 1024, + PWM_POLARITY_NORMAL), +}; + static struct platform_pwm_backlight_data nb0916_backlight_data = { - .pwm_id = 0, .max_brightness = 100, .dft_brightness = 100, - .pwm_period_ns = 70 * 1024, .enable_gpio = -1, }; @@ -112,6 +116,8 @@ int __init mach_nb0916_init(void) platform_device_register_simple("PKUnity-v3-I2C", -1, puv3_i2c_resources, ARRAY_SIZE(puv3_i2c_resources)); + pwm_add_table(nb0916_pwm_lookup, ARRAY_SIZE(nb0916_pwm_lookup)); + platform_device_register_data(NULL, "pwm-backlight", -1, &nb0916_backlight_data, sizeof(nb0916_backlight_data)); -- 2.20.1